SAMSUNG SDI CO., LTD. patent applications on March 6th, 2025

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Patent Applications by SAMSUNG SDI CO., LTD. on March 6th, 2025

SAMSUNG SDI CO., LTD.: 26 patent applications

SAMSUNG SDI CO., LTD. has applied for patents in the areas of H01M4/36 (5), H01M50/213 (4), H01M4/02 (4), H01M10/0525 (3), H01M10/0562 (3) H01M10/0562 (2), H01M10/0567 (2), H01M50/595 (2), G03F7/11 (2), H01M4/366 (2)

With keywords such as: battery, layer, material, cathode, active, dry, cells, including, solid, and plate in patent application abstracts.



Patent Applications by SAMSUNG SDI CO., LTD.

20250073652. DRY POWDER KNEADING APPARATUS_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Ilkyong KWON of Yongin-si (KR) for samsung sdi co., ltd., Seunguk Kwon of Yongin-si (KR) for samsung sdi co., ltd., Seunggwon Bang of Yongin-si (KR) for samsung sdi co., ltd., Jinhyon Lee of Yongin-si (KR) for samsung sdi co., ltd., Youmin Bang of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): B01F27/72, B01F23/60, B01F35/90, B01F35/92, H01M4/525, H01M4/62

CPC Code(s): B01F27/72



Abstract: a dry powder kneading apparatus includes a main body including an inner space into which a mixture containing an active material, a conductive material, and a binder is supplied, and a screw inside the inner space of the main body, the screw being configured to move the mixture in one direction and to knead the mixture into fiberized dry powder, and a rotation torque of the screw being 1.4 kgf�m to 42 kgf�m.


20250074712. DRY POWDER FEEDING APPARATUS_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Ilkyong Kwon of Yongin-si (KR) for samsung sdi co., ltd., Jinhyon Lee of Yongin-si (KR) for samsung sdi co., ltd., Seunguk Kwon of Yongin-si (KR) for samsung sdi co., ltd., Ahram Pyun of Yongin-si (KR) for samsung sdi co., ltd., Seunggwon Bang of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): B65G27/16, H01M10/04

CPC Code(s): B65G27/16



Abstract: a dry powder feeding apparatus includes a feeder accommodating a fibrous dry powder, the fibrous dry powder including an active material, a conductive material, and a binder, and a trough adjacent to the feeder, the trough including a bottom and a plurality of bottom pattern portions protruding from an inner surface of the bottom, the bottom of the trough being configured to move the fibrous dry powder discharged from the feeder in a first direction.


20250076022. BATTERY SYSTEM AND METHOD FOR MONITORING A BATTERY SYSTEM_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Eymen IPEK of Graz (AT) for samsung sdi co., ltd.

IPC Code(s): G01B7/16, H01M50/231, H01M50/238, H01M50/249, H01M50/284

CPC Code(s): G01B7/20



Abstract: a battery system includes a battery pack, the battery pack including a housing and a plurality of battery cells accommodated within the housing, and an underbody deformation detection system, wherein the underbody deformation detection system includes a first conductor arranged in an upper plane and a second conductor arranged in a lower plane, wherein the first conductor and the second conductor at least partially overlap in a top view, wherein the underbody deformation detection system is adapted to monitor at least one electrical measurand between the first conductor and the second conductor and to determine a deformation of the lower plane of the underbody deformation detection system.


20250076389. APPARATUS AND METHOD FOR COMPENSATING OCV OF BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Kyung Sub LEE of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G01R31/374, G01R31/3835

CPC Code(s): G01R31/374



Abstract: an apparatus for compensating an open-circuit voltage (ocv) of a battery includes a voltage sensor configured to detect a voltage of a battery cell of the battery, and a processor configured to determine a voltage value and a state-of-charge (soc) value of a peak within a voltage range based on the voltage of the battery cell each time a set number of cycles elapse, to determine a voltage variation amount of the peak, and to compensate an ocv using the soc value for each peak and the voltage variation amount of the peak.


20250076556. POLARIZING PLATE AND OPTICAL DISPLAY APPARATUS_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Yoon Jung KIM of Suwon-si (KR) for samsung sdi co., ltd., Min Jung KIM of Suwon-si (KR) for samsung sdi co., ltd., Seon Oh HWANG of Suwon-si (KR) for samsung sdi co., ltd., Eun Su PARK of Suwon-si (KR) for samsung sdi co., ltd., Yeo Il YUN of Suwon-si (KR) for samsung sdi co., ltd., Na Young KIM of Suwon-si (KR) for samsung sdi co., ltd., Kwang Ho SHIN of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G02B5/30

CPC Code(s): G02B5/3058



Abstract: a polarizing plate and an optical display apparatus are disclosed. a polarizing plate includes a polarizer and a protective layer on at least one surface of the polarizer, and the polarizer includes a polyvinyl alcohol film containing a dichroic substance and contains zinc cations and potassium cations, and the polarizing plate has a value of 0.1 or less, as calculated according to equation 1.


20250076764. RESIST TOPCOAT COMPOSITION, AND METHOD OF FORMING PATTERNS USING THE COMPOSITION_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Hyeon PARK of Suwon-si (KR) for samsung sdi co., ltd., Ran NAMGUNG of Suwon-si (KR) for samsung sdi co., ltd., Kyoungjin HA of Suwon-si (KR) for samsung sdi co., ltd., Daeseok SONG of Suwon-si (KR) for samsung sdi co., ltd., Minsoo KIM of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G03F7/11, C08F220/28, C09D133/16

CPC Code(s): G03F7/11



Abstract: provided are a resist topcoat composition and a method of forming patterns using the resist topcoat composition, the resist topcoat composition including a copolymer including a first structural unit represented by chemical formula m-1, a second structural unit represented by chemical formula m-2, and a third structural unit represented by chemical formula m-3a or chemical formula m-3b; and a solvent.


20250076765. RESIST TOPCOAT COMPOSITION, AND METHOD OF FORMING PATTERNS USING THE COMPOSITION_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Daeseok SONG of Suwon-si (KR) for samsung sdi co., ltd., Ran NAMGUNG of Suwon-si (KR) for samsung sdi co., ltd., Kyoungjin HA of Suwon-si (KR) for samsung sdi co., ltd., Hyeon PARK of Suwon-si (KR) for samsung sdi co., ltd., Minsoo KIM of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G03F7/11, G03F7/16

CPC Code(s): G03F7/11



Abstract: provided are a resist topcoat composition and a method of forming patterns using the resist topcoat composition, the resist topcoat composition including a copolymer including a first structural unit represented by chemical formula m-1, a second structural unit represented by chemical formula m-2; at least one acidic compound selected from a sulfonic acid compound containing at least one fluorine, a sulfonimide compound containing at least one fluorine, and a carboxylic acid compound containing at least one fluorine; and a solvent.


20250077664. APPARATUS AND METHOD FOR PROTECTING MEMORY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Min Su KIM of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G06F21/55

CPC Code(s): G06F21/554



Abstract: embodiments relate to an apparatus and method for protecting a memory. the apparatus may include a monitoring unit configured to monitor pieces of status data of an integrated circuit (ic) chip, and a processor configured to analyze the pieces of status data monitored by the monitoring unit to detect a cold boot attack on the ic chip and protect a memory in the ic chip from the cold boot attack according to a detection result.


20250079445. DRY CATHODE FILM, DRY CATHODE INCLUDING THE SAME, AND ALL-SOLID SECONDARY BATTERY INCLUDING THE DRY CATHODE FILM_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Sungnim Jo of Yongin-si (KR) for samsung sdi co., ltd., Inhyuk Son of Yongin-si (KR) for samsung sdi co., ltd., Taehyun Park of Yongin-si (KR) for samsung sdi co., ltd., Hyungsub Lim of Yongin-si (KR) for samsung sdi co., ltd., Kyueun Shim of Yongin-si (KR) for samsung sdi co., ltd., Jieun Lee of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/36, H01M4/40, H01M4/58, H01M4/583, H01M10/0562

CPC Code(s): H01M4/366



Abstract: a dry cathode film includes a first dry cathode active material layer adjacent to a cathode current collector, and a second dry cathode active material layer on the first dry cathode active material layer. the first dry cathode active material layer and the second dry cathode active material layer each independently include a dry cathode active material including a composite of lis, a lithium salt, and a carbon-based material; a dry sulfide-based solid electrolyte; and a dry binder. a content of the dry cathode active material in the first dry cathode active material layer is greater than a content of the dry cathode active material in the second dry cathode active material layer, and a content of the dry sulfide-based solid electrolyte in the first dry cathode active material layer is less than a content of the dry sulfide-based solid electrolyte in the second dry cathode active material layer.


20250079448. NEGATIVE ELECTRODE ACTIVE MATERIAL AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): SUNIL PARK of Yongin-si (KR) for samsung sdi co., ltd., Hansu KIM of Seoul (KR) for samsung sdi co., ltd., Donghyeok MA of Seoul (KR) for samsung sdi co., ltd., Mi YU of Seoul (KR) for samsung sdi co., ltd., Youngugk KIM of Yongin-si (KR) for samsung sdi co., ltd., Deok-Hyun KIM of Yongin-si (KR) for samsung sdi co., ltd., Ilyoung CHOI of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/36, H01M4/02, H01M4/38, H01M4/485, H01M4/583, H01M10/0525

CPC Code(s): H01M4/366



Abstract: a negative electrode active material and a rechargeable lithium battery including the negative electrode active material, the negative electrode active material includes a core including a carbon material, a silicon material, or a combination thereof; and a shell on a surface of the core, the shell including si and lisio, in which 1≤x≤3 and 1≤y≤6.


20250079470. NEGATIVE ELECTRODE LAYER FOR ALL-SOLID SECONDARY BATTERY, ALL-SOLID SECONDARY BATTERY INCLUDING THE SAME, AND PREPARATION METHOD THEREOF_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Minsuk LEE of Yongin-si (KR) for samsung sdi co., ltd., Younggyoon RYU of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/66, H01M4/02, H01M4/04, H01M4/131, H01M4/133, H01M4/134, H01M4/1395, H01M4/36

CPC Code(s): H01M4/661



Abstract: provided are a negative electrode layer for sulfide-based solid electrolyte-containing all-solid secondary batteries, an all-solid secondary battery including the same, and a preparation method thereof, wherein the negative electrode layer includes a negative current collector and a first negative active material layer, and the first negative active material layer includes a lithium metal composite including lithium metal and an inorganic negative active material.


20250079499. SOLID ELECTROLYTE MEMBRANE, PREPARATION METHOD THEREOF, AND ALL SOLID RECHARGEABLE BATTERIES_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Mijung JUNG of Yongin-si (KR) for samsung sdi co., ltd., Seonhyeok AN of Yongin-si (KR) for samsung sdi co., ltd., Seunghyun OH of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/056

CPC Code(s): H01M10/056



Abstract: a solid electrolyte membrane, a method of manufacturing the same, and an all-solid-state rechargeable battery, the solid electrolyte membrane includes a composite; and a solid electrolyte, wherein the composite includes a diamagnetic core particle; an insulating layer surrounding the diamagnetic core particle; and a shell surrounding the insulating layer, the shell including a solid electrolyte material.


20250079504. ALL SOLID SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Taehyun Park of Yongin-si (KR) for samsung sdi co., ltd., Inhyuk Son of Yongin-si (KR) for samsung sdi co., ltd., Sungnim Jo of Yongin-si (KR) for samsung sdi co., ltd., Kyueun Shim of Yongin-si (KR) for samsung sdi co., ltd., Jieun Lee of Yongin-si (KR) for samsung sdi co., ltd., Hyungsub Lim of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0562, H01M4/02, H01M4/133, H01M4/136, H01M4/36, H01M4/38, H01M4/583, H01M10/0568, H01M50/414

CPC Code(s): H01M10/0562



Abstract: an all solid secondary battery including a cathode, an anode, and a solid electrolyte layer provided between the cathode and the anode is provided. the anode includes an anode current collector and a first anode active material layer provided on one surface of the anode current collector. the cathode includes a cathode current collector and a cathode active material layer provided on one surface or two surfaces of the cathode current collector and containing a cathode active material, which lis, a lis composite, or a combination thereof. the all solid secondary battery includes an interlayer positioned between the anode and the solid electrolyte layer and containing a single lithium ion conducting polymer (slicp) and a liquid electrolyte.


20250079505. ALL SOLID SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Taehyun Park of Yongin-si (KR) for samsung sdi co., ltd., Inhyuk Son of Yongin-si (KR) for samsung sdi co., ltd., Sungnim Jo of Yongin-si (KR) for samsung sdi co., ltd., Kyueun Shim of Yongin-si (KR) for samsung sdi co., ltd., Jieun Lee of Yongin-si (KR) for samsung sdi co., ltd., Hyungsub Lim of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0562, H01M4/02, H01M4/36, H01M4/58, H01M4/587, H01M10/052, H01M50/457

CPC Code(s): H01M10/0562



Abstract: an all solid secondary battery includes a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer on a side of the cathode current collector, the cathode active material layer includes a ms-containing composite, m being lithium or sodium, the solid electrolyte layer includes a first solid electrolyte layer including a solid electrolyte represented by formula 1 and a second solid electrolyte layer including a solid electrolyte represented by formula 2, the first solid electrolyte layer is directly on the cathode active material layer and/or a first anode active material layer, and the anode layer includes an anode current collector and the first anode active material layer on a surface of the anode current collector.


20250079505. ALL SOLID SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Taehyun Park of Yongin-si (KR) for samsung sdi co., ltd., Inhyuk Son of Yongin-si (KR) for samsung sdi co., ltd., Sungnim Jo of Yongin-si (KR) for samsung sdi co., ltd., Kyueun Shim of Yongin-si (KR) for samsung sdi co., ltd., Jieun Lee of Yongin-si (KR) for samsung sdi co., ltd., Hyungsub Lim of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0562, H01M4/02, H01M4/36, H01M4/58, H01M4/587, H01M10/052, H01M50/457

CPC Code(s): H01M10/0562



Abstract:

(lim0)psm3  formula 1


20250079505. ALL SOLID SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Taehyun Park of Yongin-si (KR) for samsung sdi co., ltd., Inhyuk Son of Yongin-si (KR) for samsung sdi co., ltd., Sungnim Jo of Yongin-si (KR) for samsung sdi co., ltd., Kyueun Shim of Yongin-si (KR) for samsung sdi co., ltd., Jieun Lee of Yongin-si (KR) for samsung sdi co., ltd., Hyungsub Lim of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0562, H01M4/02, H01M4/36, H01M4/58, H01M4/587, H01M10/052, H01M50/457

CPC Code(s): H01M10/0562



Abstract:

lim1m2psm3  formula 2


20250079517. ELECTROLYTE OF RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): YEJI YANG of Yongin-si (KR) for samsung sdi co., ltd., HYUNBONG CHOI of Yongin-si (KR) for samsung sdi co., ltd., SANGHOON KIM of Yongin-si (KR) for samsung sdi co., ltd., SANGWOO PARK of Yongin-si (KR) for samsung sdi co., ltd., SOHEE KIM of Yongin-si (KR) for samsung sdi co., ltd., HONGRYEOL PARK of Yongin-si (KR) for samsung sdi co., ltd., DASOL JUN of Yongin-si (KR) for samsung sdi co., ltd., SUNDAE KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, C07C265/14, H01M10/0525, H01M10/0568, H01M10/0569, H01M10/42

CPC Code(s): H01M10/0567



Abstract: an electrolyte for a rechargeable lithium battery includes a lithium salt, a non-aqueous organic solvent, and an additive represented by formula:


20250079517. ELECTROLYTE OF RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): YEJI YANG of Yongin-si (KR) for samsung sdi co., ltd., HYUNBONG CHOI of Yongin-si (KR) for samsung sdi co., ltd., SANGHOON KIM of Yongin-si (KR) for samsung sdi co., ltd., SANGWOO PARK of Yongin-si (KR) for samsung sdi co., ltd., SOHEE KIM of Yongin-si (KR) for samsung sdi co., ltd., HONGRYEOL PARK of Yongin-si (KR) for samsung sdi co., ltd., DASOL JUN of Yongin-si (KR) for samsung sdi co., ltd., SUNDAE KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, C07C265/14, H01M10/0525, H01M10/0568, H01M10/0569, H01M10/42

CPC Code(s): H01M10/0567



Abstract:


20250079517. ELECTROLYTE OF RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): YEJI YANG of Yongin-si (KR) for samsung sdi co., ltd., HYUNBONG CHOI of Yongin-si (KR) for samsung sdi co., ltd., SANGHOON KIM of Yongin-si (KR) for samsung sdi co., ltd., SANGWOO PARK of Yongin-si (KR) for samsung sdi co., ltd., SOHEE KIM of Yongin-si (KR) for samsung sdi co., ltd., HONGRYEOL PARK of Yongin-si (KR) for samsung sdi co., ltd., DASOL JUN of Yongin-si (KR) for samsung sdi co., ltd., SUNDAE KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, C07C265/14, H01M10/0525, H01M10/0568, H01M10/0569, H01M10/42

CPC Code(s): H01M10/0567



Abstract: where at least one ris an isocyanate group and at least one ris an isocyanate group.


20250079518. ELECTROLYTE ADDITIVES FOR RECHARGEABLE LITHIUM BATTERY, ELECTROLYTE INCLUDING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Inah KANG of Yongin-si (KR) for samsung sdi co., ltd., Tae Jin LEE of Yongin-si (KR) for samsung sdi co., ltd., Si-Young CHA of Yongin-si (KR) for samsung sdi co., ltd., Hanmam JEONG of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, H01M10/0525, H01M10/0568, H01M10/0569

CPC Code(s): H01M10/0567



Abstract: an electrolyte additive for a rechargeable lithium battery includes a polymer obtained by polymerizing first compound represented by chemical formula 1, chemical formula 2, or chemical formula 3 as a monomer; and second compound represented by chemical formula 4.


20250079554. SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Hyun KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/653, H01M50/103, H01M50/15, H01M50/474, H01M50/533, H01M50/536, H01M50/557

CPC Code(s): H01M10/653



Abstract: one or more embodiments of the present disclosure relates to a secondary battery. the secondary battery includes an electrode assembly, a current collector plate electrically connected to the electrode assembly, a case configured to accommodate the electrode assembly and the current collector plate, a cap plate coupled to the case, and an insulating member between the cap plate and the current collector plate, wherein the insulating member includes an insulating frame, and a thermally conductive member fixed by the insulating frame.


20250079604. BATTERY MODULE_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seungjoon Hong of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/242, H01M50/209, H01M50/262

CPC Code(s): H01M50/242



Abstract: a battery module may include battery cells, a side plate on a side of the battery cells, and an end plate connected to the side plate. the end plate may include a body. the battery module may also include an end cover on one side of the body facing the battery cells. at least a portion of the end cover includes a flexible material, and the end cover is configured to distribute pressure applied to the end plate.


20250079619. BATTERY CELL HOLDER AND BATTERY MODULE INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seungjoon Hong of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/291, H01M50/213, H01M50/242, H01M50/271, H01M50/505

CPC Code(s): H01M50/291



Abstract: a battery cell holder includes a plurality of partition walls defining an insertion hole into which a battery cell is inserted, a plurality of support walls positioned between the plurality of partition walls, and a plurality of protrusions formed on the plurality of partition walls, wherein a distance between a center of the insertion hole and the plurality of support walls may be less than a distance between the center of the insertion hole and the plurality of protrusions.


20250079620. BATTERY MODULE_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seungjoon Hong of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/291, H01M10/6551, H01M50/209, H01M50/262, H01M50/507

CPC Code(s): H01M50/291



Abstract: a battery module includes: a plurality of battery cells; a side plate on a side of the plurality of battery cells; a holder on the plurality of battery cells; a bus bar on the holder and connecting the plurality of battery cells to each other; an end plate connected to the side plate and supporting the plurality of battery cells; a first spacer between two adjacent ones of the plurality of battery cells; and a second spacer between two adjacent other ones of the plurality of battery cells. the second spacer includes a protrusion portion. at least a part of the protrusion portion of the second spacer passes through the side plate and is supported on an outer surface of the side plate.


20250079623. CYLINDRICAL SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Kwan Sic CHUN of Yongin-si (KR) for samsung sdi co., ltd., Myung Seob KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/342, H01M50/107, H01M50/152

CPC Code(s): H01M50/3425



Abstract: a cylindrical secondary battery includes: an electrode assembly; a case of which a lower end is open to accommodate the electrode assembly; and a cap plate coupled to the lower end of the case, wherein the cap plate includes a connection area connecting a central area and an edge area, and a vent is located in at least one of the central area or the connection area and has a smaller thickness than other areas.


20250079632. SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Jinyoung KIM of Gyeonggi-do (KR) for samsung sdi co., ltd., Hyeonseon CHOI of Gyeonggi-do (KR) for samsung sdi co., ltd., Dongwan SEO of Gyeonggi-do (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/446, H01M10/052, H01M50/417, H01M50/434, H01M50/443, H01M50/491

CPC Code(s): H01M50/446



Abstract: provided are a separator for a lithium secondary battery and a lithium secondary battery comprising same. the separator for a lithium secondary battery includes a porous substrate and a coating layer positioned on at least one surface of the porous substrate and including polyethylene particles, inorganic particles, and a binding binder, wherein the inorganic particles are a mixture of first inorganic particles and second inorganic particles, the second inorganic particles are plate-shaped mg(oh), the mixing ratio of the polyethylene particles and the inorganic particles is 5:5 to 8:2 by weight, and the mixing ratio of the first inorganic particles and the second inorganic particles is 1:9 to 3:7 by weight.


20250079642. RECHARGEABLE BATTERY MODULE_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Il Oh Kang of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/503, H01M50/213, H01M50/516, H01M50/528

CPC Code(s): H01M50/503



Abstract: a rechargeable battery module is provided including a plurality of battery cells arranged in a first row and a second row parallel to the first row; a holder for receiving the plurality of battery cells; and a tab member disposed on the holder, positioned relative to the first and the second rows and welded to respective electrode terminals of plurality of the battery cells, wherein the tab member includes a body portion disposed between the first row and the second row, a first neck portion connected to the body portion, disposed along the first row, and connected to electrode terminals of one or more battery cells arranged in the first row with a first tab, and a second neck portion connected to the body portion, disposed along the second row, and connected to electrode terminals of one or more battery cells arranged in the second row with a second tab.


20250079667. RECHARGEABLE BATTERY MODULE_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Il Oh Kang of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/595, H01M50/213, H01M50/503, H01M50/516, H01M50/571

CPC Code(s): H01M50/595



Abstract: a rechargeable battery module is provided. this rechargeable battery module includes a plurality of battery cells; a holder that accommodates the plurality of battery cells; a tab member disposed in the holder and welded to an electrode terminal of a first battery cell of the plurality of battery cells; and insulating tape that insulates the tab member; wherein the tab member comprises a body part disposed on the holder, a neck part bent downward from the body part and disposed at least partially inside the holder, and a tab part bent from the neck part and connected to the electrode terminal, and the insulating tape comprises a body attachment part attached to the body part, and a tab attachment part separated from the body attachment part by a cutting line and attached to the tab part.


20250079668. RECHARGEABLE BATTERY MODULE_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Il Oh Kang of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/595, H01M50/213, H01M50/503, H01M50/516, H01M50/571

CPC Code(s): H01M50/595



Abstract: a rechargeable battery module includes: a plurality of battery cells; a holder that accommodates the plurality of battery cells; a tab member installed at the holder to be welded to electrode terminals of the plurality of battery cells; and an insulating tape that insulates the tab member. the tab member includes a main body portion disposed on the holder, an extension portion having a width and extending along at least a portion of the main body portion, a neck portion bent downward from the extension portion to be disposed inside an opening of the holder, and a tab portion bent from the neck portion to be connected to a respective one of the electrode terminals of the plurality of battery cells, and the extension portion and the opening form an outlet at an upper portion of the respective one of the electrode terminals.


20250079873. METHOD AND APPARATUS FOR CONTROLLING CHARGING OF BATTERY PACK_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Youngdong SEO of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H02J7/00

CPC Code(s): H02J7/007182



Abstract: a method of controlling charging of a battery pack, including determining, based on information on a plurality of battery modules included in the battery pack, whether a battery module is replaced or added in the battery pack, measuring a cell voltage of each battery cell included in each of the plurality of battery modules when it is determined that the battery module is replaced or added in the battery pack, identifying a maximum cell voltage value and a minimum cell voltage value from among measured cell voltages, and charging the battery pack by cyclically repeating constant current charging and constant voltage charging for the battery pack until a difference between the maximum cell voltage value and the minimum cell voltage value satisfies a threshold amount.


SAMSUNG SDI CO., LTD. patent applications on March 6th, 2025