LG ENERGY SOLUTION, LTD. patent applications on September 19th, 2024
Patent Applications by LG ENERGY SOLUTION, LTD. on September 19th, 2024
LG ENERGY SOLUTION, LTD.: 32 patent applications
LG ENERGY SOLUTION, LTD. has applied for patents in the areas of H01M10/04 (9), H01M10/0525 (4), H01M50/107 (4), H01M4/02 (3), H01M50/449 (3) H01M10/52 (2), H01M4/366 (2), H01M10/613 (1), H01M50/583 (1), H01M50/571 (1)
With keywords such as: electrode, battery, part, negative, portion, cell, assembly, secondary, separator, and between in patent application abstracts.
Patent Applications by LG ENERGY SOLUTION, LTD.
Inventor(s): Sung Tack HWANG of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): A62C3/16, A62C37/00
CPC Code(s): A62C3/16
Abstract: a battery disconnect unit includes: a housing designed to accommodate an electrical component therein; and at least one cavity formed in a body of the housing for storing a fire extinguishing liquid. the fire extinguishing liquid stored in the cavity is prevented from being ejected to an outside of the housing under a condition below a preset temperature, and is ejected to the outside of the housing at the preset temperature or higher.
20240307912. Electrode Slurry Control Device_simplified_abstract_(lg energy solution, ltd.)
Inventor(s): Paul Choi of Daejeon (KR) for lg energy solution, ltd., Dong Hun Song of Deajeon (KR) for lg energy solution, ltd., Jung Sik Choi of Daejeon (KR) for lg energy solution, ltd., Dongwook Shin of Daejeon (KR) for lg energy solution, ltd., Shin Wook Jeon of Daejeon (KR) for lg energy solution, ltd., Sang Hoon Choy of Daejeon (KR) for lg energy solution, ltd., Hyunwoo Choi of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): B05C11/10, H01M4/04
CPC Code(s): B05C11/1026
Abstract: an electrode slurry control device may include a main body configured to receive electrode slurry from an outside storage, a coater configured to discharge electrode slurry, a supply tube configured to supply the electrode slurry to the coater and connected to the main body through a first connection tube having a first opening/closing member, a first circulation tube connected to the main body through a second connection tube having a second opening/closing member; and a second circulation tube connected to the main body through a third connection tube having a third opening/closing member, a diameter of an inner peripheral surface of the second connection tube is smaller than an average diameter of an inner peripheral surface of the first circulation tube, and a diameter of an inner peripheral surface of the third connection tube is larger than an average diameter of an inner peripheral surface of the second connection tube.
Inventor(s): Sangsu Ha of Daejeon (KR) for lg energy solution, ltd., Ki Woog Kim of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): B65H19/18, B65H26/02, H01M10/04
CPC Code(s): B65H19/1852
Abstract: one aspect of the present disclosure relates to an auto-splicing device for an electrode and an auto-splicing method, and more particularly, to an auto-splicing device for an electrode and an auto-splicing method, which can minimize connection defects between the running electrode and the new electrode, wherein the running electrode and the new electrode connected and supplied to the running electrode are aligned on the basis of their coating lines by using the auto-slicing device.
Inventor(s): Seong Kyu Lee of Daejeon (KR) for lg energy solution, ltd., Kyung Hwan Jung of Daejeon (KR) for lg energy solution, ltd., Byoung Hyo Jung of Daejeon (KR) for lg energy solution, ltd., Suk Woo Lee of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): C09D5/18, H01M10/052, H01M10/054, H01M10/42, H01M50/411, H01M50/449
CPC Code(s): C09D5/18
Abstract: a coating composition for a secondary battery includes a flame retardant, a dispersant, and an aqueous solvent. the flame retardant includes at least one of an inorganic flame retardant containing a hydroxyl group, a phosphorus-based flame retardant, a halogen-based flame retardant, and a melamine-based flame retardant.
Inventor(s): Jung Hoon LEE of Daejeon (KR) for lg energy solution, ltd., Su Taek JUNG of Daejeon (KR) for lg energy solution, ltd., Seok Jin KIM of Daejeon (KR) for lg energy solution, ltd., Ji Hoon LEE of Daejeon (KR) for lg energy solution, ltd., Sang Hyun KOO of Daejeon (KR) for lg energy solution, ltd., Min Wook KIM of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): G01N27/04, B23K31/12, H01M10/42, H01M50/536
CPC Code(s): G01N27/041
Abstract: a device for inspecting a welded state of a plurality of welded portions coupling a non-coating portion of an electrode to an electrode tab includes a resistance measurer having a plurality of resistance measurement probes which respectively measure resistance values of the plurality of welded portions; and a resistance inspector which compares each of the resistance values of the plurality of welded portions, with a critical resistance value. when the resistance value of at least one welded portion among the plurality of welded portions exceeds the critical resistance value, the at least one welded portion is determined as having a weak welding. the plurality of resistance measurement probes respectively measure the resistance values of the plurality of welded portions while being respectively in contact with a non-welding surface disposed between the plurality of welded portions and non-welding surfaces outside outermost welded portions of the plurality of welded portions.
20240310448. BATTERY DIAGNOSING SYSTEM AND METHOD_simplified_abstract_(lg energy solution, ltd.)
Inventor(s): Young-Hwan JEON of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): G01R31/367
CPC Code(s): G01R31/367
Abstract: discussed is a battery management system, including at least one processor configured to obtain battery information including at least one of a temperature, a current or a voltage of a battery, generate a first diagnosis result corresponding to a current state of the battery based on the battery information, and perform a control measure based on the first diagnosis result and a diagnosis result generated based on the battery information by an external device.
Inventor(s): Youngdeok KIM of Daejeon (KR) for lg energy solution, ltd., Daesoo KIM of Daejeon (KR) for lg energy solution, ltd., Joonhyeon KANG of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): G01R31/392, G01N23/207, G01R31/36
CPC Code(s): G01R31/392
Abstract: a method for non-destructively detecting failure of a cell is disclosed. the method may include preparing a cell containing a carbon-based material as an anode active material, charging the cell, x-ray diffraction (xrd) scanning the charged cell inward from an end of an anode, and determining whether or not an licpeak of the anode is observed in a region after a signal of an anode current collector appears in xrd scans.
[[20240313198. NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE COMPRISING NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY COMPRISING SAME_simplified_abstract_(lg energy solution, ltd.)]]
Inventor(s): Heeyeon PARK of Daejeon (KR) for lg energy solution, ltd., Semi PARK of Daejeon (KR) for lg energy solution, ltd., Junghyun CHOI of Daejeon (KR) for lg energy solution, ltd., Sun Young SHIN of Daejeon (KR) for lg energy solution, ltd., Ilgeun OH of Daejeon (KR) for lg energy solution, ltd., Yong Ju LEE of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M4/36, H01M4/02, H01M4/38, H01M4/62
CPC Code(s): H01M4/366
Abstract: a negative electrode active material including silicon-containing composite particles including sio(0<x<2) and a li compound; a carbon coating layer; and sio(1<y≤2), in which the carbon coating layer is present on at least a part of the surface of the silicon-containing composite particles. the sio(1<y≤2) is present in the form of a coating layer at least a part of the surface of the silicon-containing composite particles or coating at least a part of the surface of the carbon coating layer. a negative electrode including the negative electrode active material and a secondary battery including the negative electrode are also disclosed.
Inventor(s): Su Jin PARK of Daejeon (KR) for lg energy solution, ltd., Jaewook LEE of Daejeon (KR) for lg energy solution, ltd., Soojin PARK of Pohang (KR) for lg energy solution, ltd., Hye Bin SON of Pohang (KR) for lg energy solution, ltd., Minjun JE of Pohang (KR) for lg energy solution, ltd.
IPC Code(s): H01M4/36, C01B33/18, H01M4/02, H01M4/133, H01M4/134, H01M4/1393, H01M4/1395, H01M4/38, H01M4/583, H01M4/587, H01M4/62, H01M10/0525
CPC Code(s): H01M4/366
Abstract: a negative electrode composition, a method for preparing the same, a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. the negative electrode composition comprises a silicon-based active material; a negative electrode conductive material; and a negative electrode binder, the silicon-based active material comprising a carbon coating layer doped with fluorine (f) at a surface thereof.
Inventor(s): Gi Beom Han of Daejeon (KR) for lg energy solution, ltd., Sang Min Park of Daejeon (KR) for lg energy solution, ltd., Ji Hye Kim of Daejeon (KR) for lg energy solution, ltd., Tae Gu Yoo of Daejeon (KR) for lg energy solution, ltd., Wang Mo Jung of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M4/505, H01M4/02, H01M4/04, H01M4/36, H01M4/525, H01M10/0525
CPC Code(s): H01M4/505
Abstract: a positive electrode active material for a secondary battery is provided, which includes a lithium composite transition metal oxide including nickel (ni), cobalt (co), and manganese (mn), wherein a particle of the lithium composite transition metal oxide includes a core portion and a resistance portion formed on a surface of the core portion, and is composed of a single particle, wherein the core portion has a layered crystal structure of space group r-3m, and the resistance portion has a cubic rock-salt structure of space group fm-3m.
20240313249. Formation Device for Battery Cell_simplified_abstract_(lg energy solution, ltd.)
Inventor(s): Hyun Woo Bae of Daejeon (KR) for lg energy solution, ltd., Su Ho Jeon of Daejeon (KR) for lg energy solution, ltd., Chang Min Ji of Daejeon (KR) for lg energy solution, ltd., Gi Yang of Daejeon (KR) for lg energy solution, ltd., Jung Ho Choi of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/04, H01M10/44, H01M50/317, H01M50/392
CPC Code(s): H01M10/0404
Abstract: disclosed herein is a battery cell formation apparatus according to the present invention that includes: a formation body part for performing formation of battery cells; a loading buffer part in which battery cells can wait before being put into the formation body part; an unloading buffer part in which battery cells, which are transported from the formation body part when the formation process is finished, can wait; a piercing part located at one side of the loading buffer part and forming a through hole in a gas pocket part of a battery cell accommodated in the loading buffer part; and a sealing part located on one side of the unloading buffer part and sealing a through-hole formed in a battery cell accommodated in the unloading buffer part.
Inventor(s): Jongsik PARK of Daejeon (KR) for lg energy solution, ltd., Yonggu LEE of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/04, B65H26/02, G01N21/892, G06T1/00, G06T7/00, G06T7/60
CPC Code(s): H01M10/0409
Abstract: a manufacturing apparatus of an electrode assembly includes first and second machine visions provided on driving-direction front ends of first and second electrodes from a winding core to measure first non-overlap widths between first width-direction end portions of the first and second electrodes and first width-direction end portions of first and second separators, respectively; a controller collecting vision data obtained from the first and second machine visions; setting a non-overlap width between the first separator and the second separator to 0 through vision data, computing a third non-overlap width between the first width-direction end portions of the first and second electrodes, and judging a meandering defect with the computed third non-overlap width; a data processing unit configured to accumulate and process defect judgment data through machine learning; and an input unit configured to automatically input a meandering reference value based on the data processed by the data processing unit.
Inventor(s): Inbok PARK of Daejeon (KR) for lg energy solution, ltd., Kwan Won KIM of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/04, H01M50/242, H01M50/595
CPC Code(s): H01M10/0431
Abstract: according to one embodiment of the present disclosure, a jelly-roll electrode assembly in which a cathode sheet, an anode sheet, and a separator interposed between the cathode sheet and the anode sheet are wound together, wherein the outermost side of the jelly-roll electrode assembly is wound with a non-coated portion on which no active material layer is formed on the anode sheet, wherein in the non-coated portion of the anode sheet, a swelling tape is attached to the inner surface toward the central part of the jelly-roll electrode assembly, and wherein the swelling tape includes one or more perforated holes is provided.
Inventor(s): Donghee Sul of Daejeon (KR) for lg energy solution, ltd., Kieun Sung of Daejeon (KR) for lg energy solution, ltd., Kihong Min of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/04, H01M50/46
CPC Code(s): H01M10/0468
Abstract: the present application relates to a method and apparatus for manufacturing an electrode assembly. the method includes stacking a first electrode, a separator, and a second electrode to form a stack on a stack table such that the first electrode and the second electrode are alternately disposed between the separator.
20240313266. Secondary Battery_simplified_abstract_(lg energy solution, ltd.)
Inventor(s): Jung Il Park of Daejeon (KR) for lg energy solution, ltd., Jee Ho Kim of Daejeon (KR) for lg energy solution, ltd., Yong Tae Lee of Daejeon (KR) for lg energy solution, ltd., Myung Hoon Ko of Daejeon (KR) for lg energy solution, ltd., Ki Youn Kim of Daejeon (KR) for lg energy solution, ltd., Gyung Soo Kang of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/0587, H01M10/04, H01M50/10, H01M50/107, H01M50/536, H01M50/538
CPC Code(s): H01M10/0587
Abstract: a secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. a first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis, and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. the first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. at least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.
Inventor(s): Jae Chan Lee of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/48, H01M50/105, H01M50/574, H01M50/581
CPC Code(s): H01M10/486
Abstract: a secondary battery includes: an electrode assembly; a sheet-type exterior configured to accommodate the electrode assembly; and a plurality of temperature sensing parts provided adjacent to the exterior to sense a temperature of a plurality of areas, respectively, of the exterior, wherein at least one of the plurality of temperature sensing parts includes: a positive temperature coefficient (ptc) element; and a negative temperature coefficient (ntc) element.
Inventor(s): Gyu-Ok HWANG of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/52, H01M50/403, H01M50/449, H01M50/46, H01M50/491
CPC Code(s): H01M10/52
Abstract: a cell for a secondary battery and a method for manufacturing the same. the cell for a secondary battery includes at least one negative electrode and at least one positive electrode. each negative electrode and positive electrode are stacked alternately with a separator interposed therebetween, wherein at least one separator includes a plurality of coated portions on at least one surface spaced apart from one another, and each coated portion includes a gas adsorbent and an adhesive binder. according to the cell for a secondary battery and method for manufacturing the same, it is possible to minimize gases trapped in the cell of the secondary battery and to ensure the adhesion between the separator and the electrodes.
20240313282. Battery Case And Secondary Battery_simplified_abstract_(lg energy solution, ltd.)
Inventor(s): Hanyoung Lee of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/52, H01M50/105
CPC Code(s): H01M10/52
Abstract: a battery case and a secondary battery are provided. the battery case includes a battery case cover and a gas adsorber accommodated inside the case. a gas adsorption pack which is accommodated inside the battery case opens as the internal temperature of the case increases. the battery case is capable of quickly adsorbing gas generated inside a secondary battery due to abnormal operation or degradation of the secondary battery by opening the gas adsorption pack filled with a gas adsorbent accommodated inside the case without an additional system or sensing device to secure the stability of the secondary battery, prevent deformation of the case, and reduce the resistance of the secondary battery and allowing the secondary battery to be operated even after the gas adsorption pack is opened.
Inventor(s): Jae Hyuk KANG of Daejeon (KR) for lg energy solution, ltd., Jung Been YOU of Daejeon (KR) for lg energy solution, ltd., Jae Uk RYU of Daejeon (KR) for lg energy solution, ltd., Ho June CHI of Daejeon (KR) for lg energy solution, ltd., Jin Young CHOI of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M10/613, A62C3/16, A62C35/10, H01M10/653, H01M10/6556, H01M10/6567, H01M10/6569, H01M50/342, H01M50/375, H01M50/383
CPC Code(s): H01M10/613
Abstract: a battery module including a case having an accommodation space accommodating a battery; and a cooling and fire extinguishing module disposed on the case and configured to cool heat generated in the accommodation space and extinguish a fire occurring in the accommodation space, is provided. the cooling and fire extinguishing module includes a first space, through which a refrigerant moves, or in which the refrigerant is accommodated, and a second space which is separated from the first space and formed more adjacent to the accommodation space than the first space, and stores an extinguishing fluid.
20240313328. BATTERY PACK_simplified_abstract_(lg energy solution, ltd.)
Inventor(s): Ju Hwan SHIN of Daejeon (KR) for lg energy solution, ltd., Byung Do JANG of Daejeon (KR) for lg energy solution, ltd., Ki Young KIM of Daejeon (KR) for lg energy solution, ltd., Hyoung Suk LEE of Daejeon (KR) for lg energy solution, ltd., Chang Hyeon YANG of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/258, H01M10/613, H01M10/6554, H01M10/6556, H01M50/204, H01M50/264
CPC Code(s): H01M50/258
Abstract: the disclosed technology relates to a battery pack. in an example, the battery pack includes: a pair of base plates, a center frame between the pair of base plates and connected to each of the base plates at both sides in a longitudinal direction, a pair of side frames each connected to an outer side surface of each of the base plates in the longitudinal direction, and a plurality of battery modules on the pair of base plates in a pack space between the center frame and the side frame, wherein each of the plurality of battery modules includes a pair of module frames and accommodates a plurality of battery cells, and wherein the plurality of battery modules are accommodated in the pack space such that the module frames are disposed in a direction crossing the center frame and the side frame.
Inventor(s): Sunwoo Yun of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/298, H01B7/02, H01B7/18, H01M50/204, H01M50/258, H01M50/503, H01M50/522, H01M50/526, H01M50/583
CPC Code(s): H01M50/298
Abstract: a connection wire according to one embodiment of the present disclosure includes a plurality of conductive members; and an insulating member surrounding the conductive members, wherein the insulating member has a wound shape, and is located on an inner surface of the insulating member on which the conductive members are wound.
Inventor(s): Sung-Hwan JANG of Daejeon (KR) for lg energy solution, ltd., Myung-Ki PARK of Daejeon (KR) for lg energy solution, ltd., Jun-Yeob SEONG of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/317, H01M50/249, H01M50/289, H01M50/367
CPC Code(s): H01M50/317
Abstract: a battery module is configured to ensure structural stability in case of a thermal event, and a battery pack and a vehicle uses the battery module. the battery pack includes a battery module configured to prevent venting gas or flame from being discharged to a front side where the module terminal is placed, and having an opening/closing member configured to discharge the venting gas or flame to the outside at a rear side; and a pack housing configured to accommodate the battery module therein.
Inventor(s): Doo Seung Kim of Daejeon (KR) for lg energy solution, ltd., Il Suk SIM of Daejeon (KR) for lg energy solution, ltd., Yeon Chul Choo of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/342, H01M50/308
CPC Code(s): H01M50/3425
Abstract: disclosed herein is gas venting device, and a battery module and a battery pack including the same. a cross-sectional area of a flow path according to the gas discharge direction of the gas venting device is increased or reduced to allow; a larger flow rate of gas to be discharged even when using a venting disk of the same area.
Inventor(s): Doo Seung Kim of Daejeon (KR) for lg energy solution, ltd., Il Suk SIM of Daejeon (KR) for lg energy solution, ltd., Yeon Chul Choo of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/342, H01M50/308
CPC Code(s): H01M50/3425
Abstract: a venting disk can be installed on the inlet side of the gas discharge flow path to protect internal components, and the like.
Inventor(s): Sunghwan JANG of Daejeon (KR) for lg energy solution, ltd., Junyeob SEONG of Daejeon (KR) for lg energy solution, ltd., Myungki PARK of Daejeon (KR) for lg energy solution, ltd., Won Kyoung PARK of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/383, B60L50/60, H01M50/211, H01M50/291, H01M50/30
CPC Code(s): H01M50/383
Abstract: a battery module includes: a plurality of battery cell stacking bodies including a plurality of battery cells; a frame member for receiving the battery cell stacking bodies; and at least one cell barrier structure body disposed between the battery cell stacking bodies. the cell barrier structure body includes two planar members in parallel to the battery cells, and a venting passage formed by the two planar members, and one of the two planar members includes a first opening formed to be opened toward the battery cell stacking body.
Inventor(s): In Hyouk SUNG of Daejeon (KR) for lg energy solution, ltd., Dong Wook SUNG of Daejeon (KR) for lg energy solution, ltd., Kyung Ryun KA of Daejeon (KR) for lg energy solution, ltd., Ji Hyeon KIM of Daejeon (KR) for lg energy solution, ltd., Ji Yeon KIM of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/42, H01M50/443, H01M50/446, H01M50/449
CPC Code(s): H01M50/42
Abstract: the present invention relates to a separator for an electrochemical device includes a porous polymer substrate, and a porous coating layer formed on at least one surface of the porous polymer substrate, wherein the porous coating layer includes an acrylic polymer binder, a copolymer binder, and inorganic particles, and the copolymer binder has a weight average molecular weight of 40,000 to 80,000, and the copolymer binder and the inorganic particles are included in a weight ratio of 1:93 to 1:20.
Inventor(s): Jung Pil LEE of Daejeon (KR) for lg energy solution, ltd., Hyeaeun HAN of Daejeon (KR) for lg energy solution, ltd., Jihoon RYU of Daejeon (KR) for lg energy solution, ltd., Dong Kyu KIM of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/446, H01M10/0525, H01M10/0565, H01M10/0566
CPC Code(s): H01M50/446
Abstract: a solid phase-liquid phase hybrid electrolyte membrane and a lithium secondary battery comprising the same are provided. the solid phase-liquid phase hybrid electrolyte membrane comprises a polymer; liquid phase polyhedral oligomeric silsesquioxane (poss) represented by formula 1; and a lithium salt. the solid phase-liquid phase hybrid electrolyte membrane does not leak or volatilize at normal pressure or pressure applied conditions, has high ion conductivity and excellent stability and mechanical strength, and provides excellent charging/discharging characteristics and lifetime characteristics of the lithium secondary battery.
Inventor(s): Jung Pil LEE of Daejeon (KR) for lg energy solution, ltd., Hyeaeun HAN of Daejeon (KR) for lg energy solution, ltd., Jihoon RYU of Daejeon (KR) for lg energy solution, ltd., Dong Kyu KIM of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/446, H01M10/0525, H01M10/0565, H01M10/0566
CPC Code(s): H01M50/446
Abstract:
Inventor(s): Jin Young Shin of Daejeon (KR) for lg energy solution, ltd., Dong Wook Sung of Daejeon (KR) for lg energy solution, ltd., Ji Eun Kim of Daejeon (KR) for lg energy solution, ltd., Dong Hun Bae of Daejeon (KR) for lg energy solution, ltd., Hwan Ho Shin of Daejeon (KR) for lg energy solution, ltd., Yeo Ju Yoon of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/46, H01M50/105, H01M50/474, H01M50/477, H01M50/486
CPC Code(s): H01M50/46
Abstract: an electrode assembly according to an embodiment of the present invention may include: a cell stack part including a plurality of stacked unit cells provided by integrally coupling electrodes and separators, which are alternately stacked; and a sub unit cell which is stacked on the cell stack part and is provided with a polymer film at the outermost side thereof, and in which the electrodes and the separators, which are alternately stacked, are integrally coupled together with the polymer film. the polymer film may be flat or be concavely bent toward the cell stack part so that a distance between a reference plane, which connects both edges in a width direction, and a central portion is less than 1 mm. the polymer film may have a thickness equal to or greater than that of the separator.
Inventor(s): Byoung-Gu LEE of Daejeon (KR) for lg energy solution, ltd., Duk-Hyun RYU of Daejeon (KR) for lg energy solution, ltd., Kwan-Hee LEE of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/533, H01M10/0525, H01M10/0587, H01M50/107, H01M50/536, H01M50/545, H01M50/559
CPC Code(s): H01M50/533
Abstract: a cylindrical secondary battery includes an electrode assembly having a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode, the positive electrode, the negative electrode, and the separator being wound in a winding direction, the positive electrode including a positive electrode uncoated portion exposed beyond the separator, the negative electrode including a negative electrode uncoated portion exposed beyond the separator, a positive electrode current collector plate coupled to the positive electrode uncoated portion by one or more positive electrode welding portions, and a negative electrode current collector plate coupled to the negative electrode uncoated portion by one or more negative electrode welding portions. a coupling area between the positive electrode uncoated portion and the positive electrode current collector plate is smaller than a coupling area between the negative electrode uncoated portion and the negative electrode current collector plate.
Inventor(s): Yong-Hwan Kwon of Daejeon (KR) for lg energy solution, ltd., Dong-Wook Kim of Daejeon (KR) for lg energy solution, ltd., Ji-Young Park of Daejeon (KR) for lg energy solution, ltd., Ju-Nam Son of Daejeon (KR) for lg energy solution, ltd., Seo-Hyeon Chae of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/538, H01M10/04, H01M50/184, H01M50/213, H01M50/249
CPC Code(s): H01M50/538
Abstract: a cylindrical battery includes a battery housing accommodating an electrode assembly having a first electrode, a second electrode, and a separator spirally wound about a central axis in a core of the electrode assembly such that the first and second electrodes each have an inner end and an outer end. a stress vulnerable sector is defined by an arc of an outer circumference of the electrode assembly between a first radius and a second radius extending from the central axis through the inner end of the first electrode and the second electrode, respectively. a stress amplification sector is defined by an arc of the outer circumference between a third radius and a fourth radius extending from the central axis through the outer end of the first electrode and the second electrode, respectively. at least the outer end of the first electrode is not positioned within the stress vulnerable sector.
Inventor(s): Jimin JUNG of Daejeon (KR) for lg energy solution, ltd., Je Jun LEE of Daejeon (KR) for lg energy solution, ltd., Hak Kyun KIM of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/571, H01M10/04, H01M50/107, H01M50/119, H01M50/124
CPC Code(s): H01M50/571
Abstract: a manufacturing method for providing a corrosion prevention layer on a cylindrical secondary battery including a jelly-roll type electrode assembly having a structure in which a first electrode, a second electrode, and a separator interposed therebetween are wound in one direction based on a winding axis, a battery can accommodating the electrode assembly and the battery can including a metal plated layer, and a connection lead plate joining the battery can and the electrode assembly, of which the method includes applying a resin to a portion where the metal plated layer is welded to the connection lead plate, and forming the corrosion prevention layer by curing the resin by ultraviolet rays. the resin includes one or more liquid materials. the one or more liquid materials are ultraviolet curable. the one or more liquid materials have a viscosity of 1 cp to 5000 cp.
Inventor(s): Han Saem PARK of Daejeon (KR) for lg energy solution, ltd., Jongseon KIM of Daejeon (KR) for lg energy solution, ltd., Ahae JO of Daejeon (KR) for lg energy solution, ltd., Hyeong Seop KANG of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H01M50/583, H01M10/04, H01M50/107, H01M50/152, H01M50/474, H01M50/477
CPC Code(s): H01M50/583
Abstract: a secondary battery may include: an electrode assembly having first and second electrodes and a separator; a battery can having an open upper part; a cap assembly coupled to the opened upper part; a spacer between the electrode assembly and a bottom part of the battery can; and a spring part between the spacer and the bottom part. the first electrode may include a first electrode current collector and a first electrode extension part where the first electrode current collector is exposed in a lower direction. the second electrode may include a second electrode current collector and a second electrode extension part where the second electrode current collector is exposed in an upper direction. the first electrode extension part may contact the spacer. the second electrode extension part may contact the cap assembly. the spring part may include a protrusion part that protrudes toward the spacer and contacts the spacer.
Inventor(s): Hobeen CHOI of Daejeon (KR) for lg energy solution, ltd., Youngmin KIM of Daejeon (KR) for lg energy solution, ltd.
IPC Code(s): H02J7/00, H01M10/42, H01M10/48
CPC Code(s): H02J7/007182
Abstract: a battery system can include a battery pack that includes a plurality of battery cells connected in series, a battery management system that measures the voltage of each of the plurality of battery cells, and controls charging and discharging of the battery pack, a power converter that generates a dc voltage using a voltage of a positive electrode of the battery pack, a power supply unit that generates a power voltage using the voltage of the positive electrode, a regulator that supplies a drive voltage to the battery management system using the dc voltage, and a power control unit that enables the power converter using the power voltage when it is connected to the power supply unit in an undervoltage-lockout state of the power converter.
LG ENERGY SOLUTION, LTD. patent applications on September 19th, 2024
- LG ENERGY SOLUTION, LTD.
- A62C3/16
- A62C37/00
- CPC A62C3/16
- Lg energy solution, ltd.
- B05C11/10
- H01M4/04
- CPC B05C11/1026
- B65H19/18
- B65H26/02
- H01M10/04
- CPC B65H19/1852
- C09D5/18
- H01M10/052
- H01M10/054
- H01M10/42
- H01M50/411
- H01M50/449
- CPC C09D5/18
- G01N27/04
- B23K31/12
- H01M50/536
- CPC G01N27/041
- G01R31/367
- CPC G01R31/367
- G01R31/392
- G01N23/207
- G01R31/36
- CPC G01R31/392
- H01M4/36
- H01M4/02
- H01M4/38
- H01M4/62
- CPC H01M4/366
- C01B33/18
- H01M4/133
- H01M4/134
- H01M4/1393
- H01M4/1395
- H01M4/583
- H01M4/587
- H01M10/0525
- H01M4/505
- H01M4/525
- CPC H01M4/505
- H01M10/44
- H01M50/317
- H01M50/392
- CPC H01M10/0404
- G01N21/892
- G06T1/00
- G06T7/00
- G06T7/60
- CPC H01M10/0409
- H01M50/242
- H01M50/595
- CPC H01M10/0431
- H01M50/46
- CPC H01M10/0468
- H01M10/0587
- H01M50/10
- H01M50/107
- H01M50/538
- CPC H01M10/0587
- H01M10/48
- H01M50/105
- H01M50/574
- H01M50/581
- CPC H01M10/486
- H01M10/52
- H01M50/403
- H01M50/491
- CPC H01M10/52
- H01M10/613
- A62C35/10
- H01M10/653
- H01M10/6556
- H01M10/6567
- H01M10/6569
- H01M50/342
- H01M50/375
- H01M50/383
- CPC H01M10/613
- H01M50/258
- H01M10/6554
- H01M50/204
- H01M50/264
- CPC H01M50/258
- H01M50/298
- H01B7/02
- H01B7/18
- H01M50/503
- H01M50/522
- H01M50/526
- H01M50/583
- CPC H01M50/298
- H01M50/249
- H01M50/289
- H01M50/367
- CPC H01M50/317
- H01M50/308
- CPC H01M50/3425
- B60L50/60
- H01M50/211
- H01M50/291
- H01M50/30
- CPC H01M50/383
- H01M50/42
- H01M50/443
- H01M50/446
- CPC H01M50/42
- H01M10/0565
- H01M10/0566
- CPC H01M50/446
- H01M50/474
- H01M50/477
- H01M50/486
- CPC H01M50/46
- H01M50/533
- H01M50/545
- H01M50/559
- CPC H01M50/533
- H01M50/184
- H01M50/213
- CPC H01M50/538
- H01M50/571
- H01M50/119
- H01M50/124
- CPC H01M50/571
- H01M50/152
- CPC H01M50/583
- H02J7/00
- CPC H02J7/007182
