Contemporary Amperex Technology Co., Limited patent applications published on November 30th, 2023

Summary of the patent applications from Contemporary Amperex Technology Co., Limited on November 30th, 2023

Contemporary Amperex Technology Co., Limited (CATL) has recently filed several patents related to battery technology. These patents aim to enhance the safety, efficiency, and performance of batteries used in various electrical devices.

Summary: CATL has filed patents for battery designs that include pressure relief mechanisms and firefighting pipes to improve safety and cooling processes. They have also developed innovative battery cell adapters to ensure proper functioning and safety. Additionally, CATL has patented battery cell holders that create position-limit spaces for battery cells. They have also designed end cover assemblies with electrode lead-out holes and mating portions for improved connectivity. CATL's patents also include electrode plates with specific arrangements and properties for battery cells. They have developed battery heating systems with exhaust structures for efficient heat transfer and thermal management methods to reduce costs. Furthermore, CATL has patented voltage conversion units and control systems for battery heating, as well as methods and apparatus for detecting battery states. Notably, CATL has filed a patent for a secondary battery with an electrolyte containing a specific solvent and requirements for mass ratios.

Notable Applications:

• Battery designs with pressure relief mechanisms and firefighting pipes for improved safety and cooling processes.
• Battery cell adapters for proper functioning and safety.
• Battery cell holders creating position-limit spaces for battery cells.
• End cover assemblies with electrode lead-out holes and mating portions for improved connectivity.
• Electrode plates with specific arrangements and properties for battery cells.
• Battery heating systems with exhaust structures for efficient heat transfer.
• Thermal management methods to reduce costs.
• Voltage conversion units and control systems for battery heating.
• Methods and apparatus for detecting battery states.
• Secondary battery with specific electrolyte requirements for mass ratios.

Patent applications for Contemporary Amperex Technology Co., Limited on November 30th, 2023

REWINDING APPARATUS AND REWINDING METHOD (18343214)

Main Inventor

Ruchu YU

Brief explanation

- The patent application describes a rewinding apparatus and method for rewinding a strip.

- The rewinding apparatus includes two shafts that are positioned opposite to each other and spaced out, and they are used to rewind the strip along different conveyance paths separately. - A switching mechanism is also included in the rewinding apparatus, which consists of a moving roller. - The moving roller is designed to drive the strip to switch from one shaft to another, allowing the strip to switch from one conveyance path to another. - The rewinding apparatus and method described in the patent application aim to achieve high space efficiency and high switching efficiency.

Abstract

This application discloses a rewinding apparatus and a rewinding method. The rewinding apparatus is configured to rewind a strip. The rewinding apparatus includes a rewinding mechanism and a switching mechanism. The rewinding mechanism includes two shafts that are opposite to each other along a first direction and spaced out. The two shafts are configured to rewind the strip along different conveyance paths separately. The switching mechanism includes a moving roller. The moving roller is configured to drive the strip to switch from one shaft to another shaft so that the strip switches from one conveyance path to another conveyance path. The rewinding apparatus and rewinding method disclosed in this application achieve high space efficiency and high switching efficiency.

CONVEYOR AND BAKING DEVICE (18231796)

Main Inventor

Zhiyang WU

Brief explanation

- The patent application is for an application that involves a conveyor and a baking device.

- The application describes the use of a traction rope to move an electrode plate in a transport space. - The traction rope is highly flexible and allows for smooth movement of the electrode plate in complex environments, such as an arcuate oven. - The purpose of the invention is to prevent derailment or jamming of the conveyor in the oven and to improve the smoothness of conveying the electrode plate in the oven.

Abstract

This application relates to a conveyor and a baking device. A traction rope may bring an electrode plate to move in a transport space. The traction rope may be of high flexibility and can more smoothly bring the electrode plate to move in various complex environments such as an arcuate oven, thereby effectively avoiding derailment or jamming of the conveyor in the oven and conveying the electrode plate more smoothly in the oven.

VOLTAGE MEASUREMENT CIRCUIT AND METHOD, CIRCUIT BOARD, AND CONTROL MODULE (18232839)

Main Inventor

Guobin MA

Brief explanation

The abstract describes a voltage measurement circuit designed to measure the voltage output of a battery consisting of multiple battery cells connected in series.

• The circuit includes multiple low-voltage measurement modules, each corresponding to a battery cell.
• It also includes a first switching circuit and a second switching circuit.
• A reference voltage source is used to output a preset reference voltage.
• The low-voltage measurement modules are connected to the battery cells and the reference voltage source through the switching circuits.

Abstract

A voltage measurement circuit for measuring a voltage output by a battery, the battery comprising n battery cells connected in series, wherein n is an integer greater than 1; and the circuit comprising: n low-voltage measurement modules provided in one-to-one correspondence with the n battery cells, a first switching circuit, a second switching circuit, a reference voltage source, and a control module, wherein the reference voltage source may be used for outputting a preset reference voltage; and the two ends of each of the low-voltage measurement modules may be connected to the two ends of a corresponding one of the battery cells via the first switching circuit, and the two ends of each of the low-voltage measurement modules may be further connected to the two ends of the reference voltage source via the second switching circuit.

TEST SYSTEM AND METHOD FOR POWER CONVERSION DEVICES, ELECTRONIC DEVICE, AND STORAGE MEDIUM (18310065)

Main Inventor

Chunfa WANG

Brief explanation

The patent application describes a system and method for testing power conversion devices.

• The system connects a power supply grid to the AC terminals of two power conversion devices.
• The DC terminal of the first power conversion device is connected to the DC terminal of the second power conversion device.
• This creates a test loop where the power supply grid, first power conversion device, and second power conversion device form a circuit.
• The first power conversion device acts as a load, while the second power conversion device acts as a power source.
• This eliminates the need for additional DC power supply and load during testing.

Abstract

System and method for testing power conversion devices are provided. A power supply grid is connected to an AC terminal of a first power conversion device, the power supply grid is also connected to an AC terminal of the second power conversion device, and a DC terminal of the first power conversion device is connected to a DC terminal of the second power conversion device. In this way, a test loop is formed by the power supply grid, the first power conversion device and the second power conversion device. In this test loop, the first power conversion device and the second power conversion device act as a load and a power source, so no additional DC power supply and load are required during the test.

VIRTUAL SIMULATION METHOD AND APPARATUS FOR CONVEYING MECHANISM, ELECTRONIC DEVICE, PLC, AND MEDIUM (18447292)

Main Inventor

Chang LIU

Brief explanation

The patent application describes a virtual simulation method for a conveying mechanism. 

• The method involves obtaining a data model of the conveying mechanism.
• A virtual conveying line is created based on the data model, allowing the data model to move along the virtual conveying line during a simulation process.
• A target logic block is created to determine the actual distance the data model moves each time during the simulation process.
• The actual distance is sent to a PLC (Programmable Logic Controller).
• The PLC controls the data model to stop moving when the actual distance matches the target distance for each movement of the conveying mechanism.

Abstract

A virtual simulation method for a conveying mechanism includes obtaining a data model of the conveying mechanism, creating a virtual conveying line according to the data model so that the data model is movable along the virtual conveying line during a simulation process, creating a target logic block used to determine an actual distance for which the data model moves each time during the simulation process, and sending the actual distance to a PLC, so that when it is determined that the actual distance is the same as a target distance for which the conveying mechanism should move each time, the PLC controls the data model to stop moving.

SECONDARY BATTERY (18147201)

Main Inventor

Suogang GUO

Brief explanation

The patent application describes a secondary battery with a positive electrode plate and a negative electrode plate.

• The negative electrode plate includes a negative electrode current collector, a negative electrode active material layer, and an insulation layer and a reaction layer.
• The reaction layer contains materials like graphite, silicon, silicon oxide, silicon suboxide, tin oxide, copper oxide, or zinc oxide.
• The capacity per unit area of the positive electrode active material layer and the negative electrode active material layer must satisfy a specific ratio.
• The ratio is B1/A1<1, where B1 is the capacity per unit area of the negative electrode active material layer and A1 is the capacity per unit area of the positive electrode active material layer.

Abstract

A secondary battery includes a positive electrode plate and a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a negative electrode active material layer provided on at least one surface of the negative electrode current collector, and an insulation layer and a reaction layer sequentially provided on a surface of the negative electrode active material layer on a side opposite to the negative electrode current collector. The reaction layer includes at least one of graphite, silicon, silicon oxide, silicon suboxide, tin oxide, copper oxide, or zinc oxide. A capacity per unit area, A1 (mAh/cm), of a positive electrode active material layer in the positive electrode plate and a capacity per unit area, B1 (mAh/cm), of the negative electrode active material layer in the negative electrode plate satisfy B1/A1<1.

POSITIVE ELECTRODE PLATE, SECONDARY BATTERY AND PREPARATION METHOD THEREOF AND BATTERY MODULE, BATTERY PACK AND POWER CONSUMING DEVICE COMPRISING THE SECONDARY BATTERY (18167065)

Main Inventor

Haotian Xie

Brief explanation

The patent application describes a positive electrode plate for use in batteries.

• The positive electrode plate includes a positive electrode current collector, a positive electrode active material layer, and a lithium supplementing layer.
• The lithium supplementing layer is composed of a lithium-rich metal oxide, a conductive agent, and a binder A.
• The binder A is a polymer that contains two different monomer units, shown by formula I and formula II.
• The monomer units can have various substituents and are selected from hydrogen or C1 to C8 alkyl groups.
• The positive electrode plate aims to improve the performance and capacity of batteries by providing a lithium supplementing layer.
• The use of a lithium-rich metal oxide in the supplementing layer helps increase the lithium content in the battery.
• The conductive agent and binder A ensure good conductivity and adhesion within the electrode plate structure.

Abstract

A positive electrode plate is provided. The positive electrode plate comprises a positive electrode current collector, a positive electrode active material layer provided on at least one surface of the positive electrode current collector, and a lithium supplementing layer provided on a surface of the positive electrode active material layer opposite to the positive electrode current collector. The lithium supplementing layer comprises a positive electrode lithium supplementing material, a conductive agent and a binder A, the positive electrode lithium supplementing material comprises a lithium-rich metal oxide, and the binder A is selected from polymers containing a first monomer unit shown by a formula I and a second monomer unit shown by a formula II, where the R, R, R, R, Rand Rare each independently selected from hydrogen or substituted or unsubstituted C1 to C8 alkyl, and the R is selected from substituted or unsubstituted C1 to C8 alkyl.

SECONDARY BATTERY AND BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS INCLUDING SAME (18229715)

Main Inventor

Chang PENG

Brief explanation

The patent application is for a secondary battery that includes an electrolyte and a positive electrode plate. The electrolyte in the battery may contain a specific compound represented by formula (I).

• The patent application is related to a secondary battery design.
• The secondary battery includes an electrolyte and a positive electrode plate.
• The electrolyte may contain a specific compound represented by formula (I).

Abstract

This application relates to a secondary battery including an electrolyte and a positive electrode plate, where the electrolyte may include a compound represented by formula (I):

LITHIUM BIS(FLUOROSULFONYL)IMIDE AND PREPARATION METHOD THEREOF, ELECTROLYTIC SOLUTION AND SECONDARY BATTERY (18231255)

Main Inventor

Sicong CHENG

Brief explanation

The patent application describes a method for preparing lithium bis(fluorosulfonyl)imide, which is used in electrolytic solutions for secondary batteries. The method involves several steps including synthesis, evaporation, extraction, alkalinization, dehydration, desolventization, crystallization, and drying.

• Method for preparing lithium bis(fluorosulfonyl)imide for use in electrolytic solutions for secondary batteries
• Steps involved: synthesis, evaporation, extraction, alkalinization, dehydration, desolventization, crystallization, and drying
• Provides a detailed process for obtaining high-quality lithium bis(fluorosulfonyl)imide
• Enables the production of an electrolytic solution containing the lithium bis(fluorosulfonyl)imide
• Can be used in the manufacturing of secondary batteries

Abstract

The present application provides a method for preparing lithium bis(fluorosulfonyl)imide, which may include the following steps: (a) a synthesis step; (b) an evaporation step; (c) an extraction step; (d) an alkalinization step; (e) a dehydration step; (f) a desolventization step; (g) a crystallization step; and (h) a drying step; lithium bis(fluorosulfonyl)imide prepared by the method, an electrolytic solution containing the lithium bis(fluorosulfonyl)imide, and a secondary battery thereof.

LITHIUM BIS(FLUOROSULFONYL)IMIDE AND PREPARATION METHOD THEREOF, ELECTROLYTIC SOLUTION AND SECONDARY BATTERY (18446441)

Main Inventor

Sicong CHENG

Brief explanation

The abstract describes a method for preparing lithium bis(fluorosulfonyl)imide, which involves several steps. Here are the bullet points explaining the patent/innovation:

• The method involves a synthesis step, where lithium bis(fluorosulfonyl)imide is synthesized.
• After synthesis, there is an evaporation step, where excess solvent is removed.
• An extraction step follows, where impurities are removed from the synthesized compound.
• Next, an alkalinization step is performed to adjust the pH of the compound.
• A dehydration step is then carried out to remove any remaining water.
• Finally, a desolventization step is performed to remove any remaining solvents from the compound.

Overall, this patent application presents a detailed method for preparing lithium bis(fluorosulfonyl)imide, ensuring the purity and quality of the final product.

Abstract

A method for preparing lithium bis(fluorosulfonyl)imide includes a synthesis step, an evaporation step, an extraction step, an alkalinization step, a dehydration step, and a desolventization step.

SECONDARY BATTERY AND BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS CONTAINING SECONDARY BATTERY (18317094)

Main Inventor

Lei Huang

Brief explanation

The patent application describes a secondary battery and battery module, battery pack, and electric apparatus that use this battery. 

• The secondary battery includes a positive electrode plate and an electrolyte.
• The positive electrode plate has a positive electrode current collector and a positive electrode film layer.
• The positive electrode film layer contains olivine-structured lithium-containing phosphate or its modified compound.
• The electrolyte contains an organic solvent, specifically a first solvent represented by Formula 1.
• The first solvent is made up of C1-C4 alkyl and C1-C4 haloalkyl.
• The secondary battery has specific requirements:

 * The mass of the first solvent divided by the rated capacity of the battery must be greater than or equal to 0.7 g/Ah.
 * The mass of the electrolyte divided by the rated capacity of the battery must be less than or equal to 3.5 g/Ah.

Abstract

A secondary battery and a battery module, a battery pack, and an electric apparatus containing the secondary battery are provided. The secondary battery includes a positive electrode plate and an electrolyte. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and the positive electrode film layer includes one or more of olivine-structured lithium-containing phosphate and its modified compound. The electrolyte includes an organic solvent, and the organic solvent includes a first solvent represented by Formula 1. Rand Rin Formula 1 each are independently one of C1-C4 alkyl and C1-C4 haloalkyl. The secondary battery satisfies: mass of first solvent/rated capacity of secondary battery is ≥0.7 g/Ah; and mass of electrolyte/rated capacity of secondary battery is ≤3.5 g/Ah.

BATTERY DETECTION METHOD AND APPARATUS, AND READABLE STORAGE MEDIUM (18321294)

Main Inventor

Ting FENG

Brief explanation

The patent application describes a method and apparatus for detecting the state of a battery.

• The apparatus includes a voltage measurement module that measures the open-circuit voltage of the battery.
• A processor obtains the open-circuit voltage and controls a constant voltage source to input a test voltage to the battery.
• The test voltage is the same as the open-circuit voltage and is applied after a preset time.
• A current measurement module measures the instantaneous current of the battery after the test voltage is applied.
• The processor obtains the instantaneous current and determines the self-discharge characteristic of the battery based on a preset current threshold.

Abstract

A battery detection method and apparatus are provided. The battery detection apparatus includes: a voltage measurement module, configured to connect to a battery to be tested, and measure an open-circuit voltage of the battery to be tested; a processor, configured to obtain the open-circuit voltage; a constant voltage source, configured to input a test voltage to the battery to be tested under control of the processor after the battery to be tested stands for a preset time, the test voltage is the same as the open-circuit voltage; and a current measurement module, configured to measure an instantaneous current of the battery to be tested after the test voltage is inputted. The processor is also configured to obtain the instantaneous current and determine the self-discharge characteristic of the battery to be tested according to the instantaneous current and a preset current threshold.

BATTERY HEATING SYSTEM AND METHOD, POWER SUPPLY SYSTEM, AND ELECTRICAL APPARATUS (18450375)

Main Inventor

Xinwei CHEN

Brief explanation

The patent application describes a battery heating system that includes a voltage conversion unit and a control unit. 

• The voltage conversion unit is connected to a power source and a battery to be heated.
• The voltage conversion unit can receive either a first voltage input from the power source or a second voltage input from the battery.
• The control unit determines the charging and discharging frequency of the voltage conversion unit.
• Based on the charging and discharging frequency, the control unit calculates the charge transfer impedance of the battery.
• The control unit then calculates a safe amplitude current for the battery based on the charge transfer impedance.
• The control unit sends a control signal to the voltage conversion unit based on the charging and discharging frequency and the safe amplitude current.
• The voltage conversion unit performs boost or buck processing of the first voltage or the second voltage based on the control signal.

Abstract

A battery heating system includes a voltage conversion unit configured to be electrically connected to a power source and to a battery to be heated, and a control unit. The voltage conversion unit receives a first voltage input by the power source or a second voltage input by the battery to be heated. The control unit acquires a charging and discharging frequency of the voltage conversion unit, determines a charge transfer impedance of the battery to be heated according to the charging and discharging frequency, calculates a safe amplitude current of the battery to be heated according to the charge transfer impedance, and sends a control signal to the voltage conversion unit according to the charging and discharging frequency and the safe amplitude current to cause the voltage conversion unit to perform boost or buck processing of the first voltage or the second voltage according to the control signal.

===THERMAL MANAGEMENT METHOD AND THERMAL MANAGEMENT SYSTEM ([[US Patent Application 18446550. THERMAL MANAGEMENT METHOD AND THERMAL MANAGEMENT SYSTEM simplified abstract|18446550]])===

Main Inventor

Yuanmiao ZHAO

Brief explanation

The patent application describes a thermal management method and system for efficiently transferring heat from a heating apparatus to a battery pack via a pipeline subsystem. 

• The method involves measuring the temperature of the heating apparatus and the battery pack while the heating apparatus is in operation.
• Heat is transferred from the heating apparatus to the battery pack through the pipeline subsystem when the temperature of the heating apparatus is higher than the battery pack temperature.
• The goal of this method is to improve thermal management efficiency and reduce thermal management costs.

Abstract

Embodiments of this application provide a thermal management method and a thermal management system. The thermal management method is applied to a thermal management system including a heating apparatus, a battery pack, and a pipeline subsystem. The pipeline subsystem is in thermal contact with the heating apparatus and the battery pack. The thermal management method includes: measuring temperature of the heating apparatus and battery pack temperature of the battery pack under the condition that the heating apparatus is in operating state; and transferring heat from the heating apparatus to the battery pack via the pipeline subsystem under the condition that the temperature of the heating apparatus is higher than the battery pack temperature. According to the embodiments of this application, the thermal management efficiency can be improved and the thermal management costs can be reduced.

BATTERY AND ELECTRICAL APPARATUS (18448496)

Main Inventor

Xubin CHEN

Brief explanation

The patent application is about a battery and an electrical apparatus in the field of new energy technology.

• The battery includes a battery cell and a heating component attached to at least one side of the battery cell.
• The heating component is used to heat the battery cell, improving its performance.
• An exhaust structure is provided on the heating component, opposite to the surface of the battery cell.
• The exhaust structure helps discharge the gas between the battery cell and the heating component.
• This design allows the heating component to closely adhere to the battery cell, enhancing heat transfer efficiency.

Abstract

The present application relates to the field of new energy technology, and discloses a battery and an electrical apparatus. The battery comprises: a battery cell; a heating component attached to the surface of at least one side of the battery cell, and the heating component is used to heat the battery cell; wherein, an exhaust structure is provided on the heating component at a position opposite to the surface of at least one side of the battery cell, and the exhaust structure is used to discharge the gas between the surface of at least one side of the battery cell and the heating component. In this way, the present application can make the heating component closely adhere to the surface of the battery cell, thereby improving the heat transfer efficiency.

ELECTRODE PLATE, BATTERY CELL, BATTERY AND ELECTRICAL DEVICE (18446290)

Main Inventor

Zhisheng Chai

Brief explanation

The patent application describes an electrode plate for a battery cell, along with a battery and an electrical device that use this electrode plate. 

• The electrode plate consists of an insulating substrate, a conductive layer, and an active material layer.
• The conductive layer is placed on the insulating substrate, and the active material layer is applied on top of the conductive layer.
• The conductive layer has two parts: one part is coated with the active material layer, and the other part is not coated.
• Both parts of the conductive layer are arranged in a specific direction.
• The conductive layer has certain properties, including resistivity, specific heat capacity, and density, which are used to calculate a constant value.
• The thickness of the conductive layer and the size of the coated part must satisfy a specific range of values.
• The purpose of this invention is not explicitly stated in the abstract.

Abstract

An electrode plate, a battery cell, a battery and an electrical device are provided. The electrode plate includes an insulating substrate, a conductive layer, and an active material layer. The conductive layer is arranged on the surface of the insulating substrate. The active material layer is applied on the surface of the conductive layer away from the insulating substrate. The conductive layer includes a first part coated with the active material layer and a second part not coated with the active material layer. The first part and the second part are arranged along the first direction. The conductive layer has a resistivity of ρ1, a specific heat capacity of C, a density of ρ2, and a constant K=ρ1/(C·ρ2). The conductive layer has a thickness of d1, the first part has a size of W along the first direction, and d1, W and K satisfy: 0.001 J/(Ω·mm·° C.)≤d1/(K·W)≤0.0075 J/(Ω·mm·° C.).

END COVER ASSEMBLY, BATTERY CELL, BATTERY, ELECTRICAL APPARATUS, AND PREPARATION METHOD (18446716)

Main Inventor

Rulai CAI

Brief explanation

The patent application describes an end cover assembly for a battery cell.

• The end cover has an electrode lead-out hole and a first mating portion on the inside.
• An electrode terminal covers the lead-out hole.
• A connecting member connects the electrode terminal to the battery cell's electrode assembly.
• The connecting member has a second mating portion that resists deformation along the radial direction of the lead-out hole.

Abstract

An end cover assembly applied to a battery cell includes an end cover provided with an electrode lead-out hole and including a first mating portion provided at a side, facing inside of the battery cell, of the end cover, an electrode terminal disposed at the end cover and covering the electrode lead-out hole, and a connecting member configured to electrically connect the electrode terminal and an electrode assembly of the battery cell. The connecting member includes a second mating portion configured to be mated with the first mating portion to provide deformation resistance of the connecting member along a radial direction of the electrode lead-out hole.

BATTERY AND ELECTRICAL APPARATUS (18234409)

Main Inventor

Zhichao WANG

Brief explanation

The abstract describes a battery design that includes a first battery cell and two holders at each end of the cell. 

• The first holder is recessed in a direction away from the second holder to create a first position-limit portion.
• The second holder is recessed away from the first holder to create a second position-limit portion.
• The first and second position-limit portions are oppositely provided.
• The first and second holders are buckled along a first direction.
• The first position-limit portion and the second position-limit portion work together to create a position-limit space for the battery cell.

Abstract

A battery may comprise: a first battery cell; a first holder and a second holder provided at both ends of the first battery cell along a first direction, the first holder may be recessed in a direction away from the second holder along the first direction to form a first position-limit portion, and the second holder may be recessed away from the first holder along the first direction to form a second position-limit portion, so that the first position-limit portion and the second position-limit portion may be oppositely provided, and the first holder and the second holder may be buckled along the first direction, so that the first position-limit portion and the second position-limit portion may cooperate to form a position-limit space for accommodating the first battery cell.

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS (18226789)

Main Inventor

Huasheng SU

Brief explanation

The patent application is about a battery cell, a battery, and an electrical device in the field of battery technology.

• The battery cell includes an adapter that is formed by connecting two adapter portions with an insulating portion.
• The insulating portion prevents the adapter portions from being electrically connected.
• The purpose of this design is to ensure the proper functioning and safety of the battery cell.
• This innovation may improve the efficiency and reliability of batteries used in electrical devices.

Abstract

The present application relates to the technical field of battery, and in particular, to a battery cell, a battery, and an electrical device. The battery cell may include an adapter, the adapter may be formed by connecting a first adapter portion and a second adapter portion by a first insulating portion, and the first insulating portion may be located between the first adapter portion and the second adapter portion to prevent the first adapter portion and the second adapter portion from being electrically connected.

BATTERY AND ELECTRIC APPARATUS (18448374)

Main Inventor

Haihe XIAO

Brief explanation

- The patent application describes a battery and an electric apparatus that includes a firefighting pipe and multiple battery cells.

- The battery cells are equipped with a pressure relief mechanism that is designed to release internal pressure in a specific direction when the pressure or temperature inside the battery cell reaches a certain threshold. - The firefighting pipe is located on the side of the battery cells where the pressure relief mechanism is present and is arranged in a staggered manner with the mechanism. - The firefighting pipe has a drainage opening that is designed to discharge a firefighting medium towards the pressure relief mechanism when it is activated. - The purpose of the drainage opening is to cool the battery cell more quickly by allowing the firefighting medium to be directed towards it. - The innovation aims to enhance the safety of the battery by improving the cooling process of the battery cell.

Abstract

A battery and an electric apparatus are described. The battery includes a firefighting pipe and a plurality of battery cells provided with a pressure relief mechanism. The pressure relief mechanism is configured to be actuated and release internal pressure in a first direction when the internal pressure or temperature of the battery cell reaches a threshold; the firefighting pipe is arranged on a side of the plurality of battery cells that is provided with the pressure relief mechanism, and is disposed in a staggered manner with the pressure relief mechanism; and the firefighting pipe is provided with a drainage opening, where the drainage opening is configured to discharge a firefighting medium toward the pressure relief mechanism when the pressure relief mechanism is actuated, so as to cool the battery cell. The battery allows the firefighting medium to more quickly cool a battery cell, thereby improving safety of the battery.