Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology (Hong Kong) Limited

Ningde Amperex Technology Limited

Contemporary Amperex Technology Co., Limted

Contemporary Amperex Technology Limited

Kai Wu

Peng Wang

Quankun Li

Yuqun Zeng

Pinghua Deng

Xiaobo Chen

Qiandeng Li

Xingdi Chen

Zhanyu Sun

Yongshou Lin

Liwen Jiang

Le Chu

Linggang Zhou

Wei Dai

Baisong Chen

Chao Wang

Mingdi Xie

Yongkun Li

Chengdu Liang

Haizu Jin

Wei Li

Yao Li

Huasheng Su

Yanhui Fu

Jian Guo

Zhiyu Wang

Bao Li

Jirong Huo

Jianwei Zhuo

Yuwen Wang

Zhimin Zeng

Baozhen Wu

Bo Cheng

Feng Ju

Jibin Geng

Xingyan You

Wenlong Bai

Junjie Jiang

Wei Zheng

Yu Zhao

Zhengzhu Zhou

Yao Liu

Chengyou Xing

Taosheng Zhu

Zige Zhang

Xinxiang Chen

Peipei Guo

Shoujun Huang

Mingguang Gu

Yang Zhang

Yuepan Hou

Guowei Li

Wei Wang

Lingbo Zhu

Bin Zhao

Long Wang

Huihui Liu

Wenlong Kang

Yu Luo

Huan Che

Guoxiu Wu

Baiqing Li

Pengcheng Yao

Jiandong Yang

Junzhong Hu

Dan Shen

Xiaowei Sun

Shuai Liu

Yudong Qiu

Ying Wu

Tuo Zheng

Xiaowei Yu

Yule Yang

Ping Hua Deng

Quan Kun Li

Yiyang Wu

Cheng Ji

Sixia Meng

Gang Dong

Shaojie Tian

Zhengyuan Zhao

Jian Luo

Huaichao Tang

Jingfeng Bai

Yanlin Sun

Xiaoxuan Fan

Hua Huang

Zhonghong Li

Jinsong Zhang

Yuhang Ma

Youshan Wang

Leigang Qiu

Weixu Yang

Zenghui Chen

Wanjin Guo

Yuming Xie

Haiming Qin

Chuanhui Zhang

Yu Zhang

The present application provides a composite negative electrode active material and a preparation method therefor, a negative electrode plate comprising same, a secondary battery and a power consuming device. The composite negative electrode active material comprises a negative electrode active material substrate and a conductive polymer layer on the surface of the negative electrode active material substrate, wherein the cyclic voltammetry curve of the composite negative electrode active material has an oxidation peak within a range of 3.2 V-3.6 V and a reduction peak within a range of 2.1 V-2.6 V. The composite negative electrode active material provided by the present application can combine a low volume expansion, a high capacity per gram and a high initial coulombic efficiency, thus enabling a secondary battery to combine a low volume expansion, a high energy density and a long cycle life.

Composite negative electrode active material and preparation method therefor, negative electrode plate comprising same, secondary battery, and power consuming device

An electrode assembly, a battery cell, a battery, and a method and device for manufacturing an electrode assembly are provided. In some embodiments, the electrode assembly includes a positive electrode plate and a negative electrode plate. The positive electrode plate and the negative electrode plate are wound or folded to form a bend region. The positive electrode plate includes a plurality of bend portions located in the bend region. Each bend portion includes a positive current collecting layer and a positive active material layer. The positive current collecting layer is coated with the positive active material layer on at least one surface in a thickness direction of the positive electrode plate. A barrier layer is disposed between the positive current collecting layer and the positive active material layer.

Electrode assembly, battery cell, battery, and method and device for manufacturing electrode assembly

The battery cell includes a shell, the shell has a wall portion, the wall portion includes a weak portion, and the weak portion is configured to be destroyed when the battery cell releases internal pressure. An outer surface of the wall portion has a center point. A maximum distance between a projection of the weak portion on the outer surface of the wall portion and the center point is a, the minimum radial dimension of the outer surface of the wall portion is A, and a and A satisfy: a≤0.4A. By setting a≤0.4A, the weak portion is arranged at a region, with a relatively low stiffness, of the wall portion. When the battery cell releases the internal pressure, the region undergoes a large deformation under the action of gas, and therefore the weak portion arranged at the region is easily damaged.

Battery cell, battery, and electrical device

A cell feeding method includes: controlling a first conveyor line to convey inflowing cells to a first material fetching position; controlling a second conveyor line to convey inflowing cells to a second material fetching position; controlling a third conveyor line to convey inflowing cells to a side taping station, and conveying the cells subjected to side taping treatment to a third material fetching position; controlling a first feeding and grabbing mechanism to grab a first number of cells from a first material fetching position to a first feeding area in the feeder position; and controlling a second feeding and grabbing mechanism to grab a first number of cells from a target material fetching position to a second feeding area in the feeder position.

Cell feeding system and method, cell grouping system and method, and operation system

This application provides an electrolyte for lithium-ion battery, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The electrolyte provided in this application includes a non-aqueous solvent, and a lithium salt and an additive that are dissolved in the non-aqueous solvent, and the additive includes a cyclosiloxane and a fluoroether. This application further provides a lithium-ion battery including the foregoing electrolyte. In the electrolyte provided in this application, the cyclosiloxane and the fluoroether are used together to synergistically react on a surface of the positive electrode, combining silicon and oxygen containing groups and fluorine and oxygen containing groups to form an interface film containing silicon, oxygen, and fluorine, which not only ensures density of the interface film, but also strengthens oxidation resistance and thermal stability of the interface film, greatly improving both storage performance and cycling performance of the lithium-ion battery under high temperature.

Electrolyte for lithium-ion battery, lithium-ion battery, battery module, battery pack, and apparatus

A heat exchanger for a vehicular air conditioning system is disclosed. The heat changer includes a heat exchanger body, a water storage tank, and a condensate water circulating device. The heat exchanger body is provided with an air-inlet side and an air-outlet side. The air-inlet side is configured to enable an external air flow to enter the heat exchanger body, so that the air flow conducts heat exchange with a refrigerant in the heat exchanger body. The air-outlet side is configured to exhaust the air flow completing heat exchange with the refrigerant. The water storage tank is arranged below the heat exchanger body and is configured to store condensate water formed on the heat exchanger body. The condensate water circulating device is configured to transport cold water in the water storage tank to the air-inlet side of the heat exchanger body for heat exchange with the heat exchanger body.

Heat exchanger for vehicle air conditioning system, vehicle air conditioning system and vehicle

A negative electrode plate and an electrode assembly, a battery cell, a battery, and an electric apparatus containing the same are provided. The negative electrode plate () includes: a negative electrode current collector, having a first surface (a) and a second surface (b) opposite each other in a thickness direction of the negative electrode current collector; a first negative electrode film layer located on the first surface side, the first negative electrode film layer including first silicon-based negative electrode active material particles; and a second negative electrode film layer located on the second surface side, the second negative electrode film layer including second silicon-based negative electrode active material particles; where a capacity Cper unit area of the first negative electrode film layer and a capacity Cper unit area of the second negative electrode film layer satisfy: 0.005 mAh/mm≤C<C≤0.2 mAh/mm.

Assembly, battery cell, battery, and electric apparatus containing same

A clamping apparatus, includes: a support assembly including a first driving module and clamping mechanisms disposed on the support assembly and including at least one first clamping mechanism and at least one second clamping mechanism arranged along a first direction. When the clamping apparatus is in a first state, an opening direction of a clamping opening of the first clamping mechanism faces away from the second clamping mechanism. When the clamping apparatus is in a second state, the opening direction of the clamping opening of the first clamping mechanism faces towards the second clamping mechanism. The opening direction of the clamping opening of the first clamping mechanism is consistent with an opening direction of a clamping opening of the second clamping mechanism. The first driving module drives the first clamping mechanism to rotate, such that the clamping apparatus switches between the first state and the second state.

Clamping apparatus, battery production line and transfer method

A driving apparatus disposed on a frame drives a rotary table to rotate. At least three carrying assemblies are disposed on the rotary table and spaced apart along a circumferential direction of the rotary table, and are configured to carry battery cells. Among the carrying assemblies, at least one is located at a loading position, at least one is located at an unloading position, and at least one is located at a pressing position. The loading position is located on a side of the pressing position facing away from a rotation direction of the rotary table. The unloading position is located on a side of the pressing position facing the rotation direction of the rotary table. A pressing assembly disposed on the frame is configured to press battery cells carried by the carrying assembly located at the pressing position so as to the battery cells.

Grouping device, grouping method, and battery production line

Embodiments of this disclosure provide a mobile robot for assembling a battery, an operation system, a control method, and a control system. The mobile robot includes a mobile platform, an inspection apparatus, a plurality of end effectors, and a robotic hand. The mobile platform is capable of receiving an assembly instruction to implement movement between different positions. The inspection apparatus is disposed on the mobile platform, configured to obtain a position signal and an assembly recipe signal. The plurality of end effectors are placed on the mobile platform. The robotic hand is disposed on the mobile platform, capable of connecting to a target end effector to perform a corresponding assembly action on the battery. The target end effector is determined from the plurality of end effectors based on the assembly instruction, and the assembly action is determined based on the position signal and the assembly recipe signal.

Mobile robot, operation system, control method, and control system for assembling battery

A suspension structure and a vehicle are disclosed. The suspension structure includes: a leaf spring assembly, a connecting bracket, and a steering knuckle. The leaf spring assembly includes two leaf spring components arranged along a front-to-back direction. Each of the leaf spring components is arranged transversely relative to a main structure. A middle of each leaf spring component is fixedly connected to the main structure. Two free ends are disposed along a length direction of each leaf spring component. The free ends include a mounting portion. The connecting bracket includes a bracket body and a ball pin. The bracket body includes a first arm body and a second arm body. The first arm body intersects one end of the second arm body, and is connected to the ball pin at an intersecting end.

Suspension structure and vehicle

The present disclosure relates to a top cover assembly of a secondary battery and a secondary battery, wherein the top cover assembly includes a top cover plate, provided with a through hole; an electrode terminal, covering the through hole; an insulating plate, wherein at least part of the insulating plate is arranged on a side of the top cover plate away from the electrode terminal; a seal, wherein at least part of the seal is arranged between the top cover plate and the electrode terminal; and an insulator, wherein at least part of the insulator is arranged between the top cover plate and the insulating plate; wherein the insulator and the seal at least jointly enclose a side wall of the through hole and an area, close to the through hole, on an upper surface of the top cover plate.

Top cover assembly of secondary battery and secondary battery

A quick-change platform, a battery production line and a control method are disclosed. The quick-change platform includes a tray set. In a first pick-and-place state, the tray set is located in a first pick-and-place position, so as to enable the tray set to receive the target objects removed from a battery module clamp, or enable a battery module transport apparatus to pick the target objects placed on the tray set. In a second pick-and-place state, the tray set is located in a second pick-and-place position, so as to remove the target objects on the tray set, or place the target objects on the tray set.

Quick-change platform, battery production line, and control method

This application provides an electrolyte for lithium-ion battery, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The electrolyte includes an organic solvent, an electrolytic lithium salt dissolved in the organic solvent, and additives, where the additives include a first additive and a second additive. The first additive includes an alkenyl dioxaborolane compound represented by formula I or formula II, and the second additive includes phosphoric acid cyclic anhydride represented by formula III. After the electrolyte of this application is applied to a lithium-ion battery, the lithium-ion battery can, at high voltage, have a good high-temperature cycling performance and high-temperature storage performance, a low direct current resistance, as well as good high-voltage characteristics.

A cylindrical battery cell, a battery, an electricity consuming device, a manufacturing method and a manufacturing system are provided. The cylindrical battery cell includes a shell, including an opening; and an electrode assembly, disposed in the shell, the electrode assembly including a separator and a tab, and along an axial direction of the electrode assembly, the tab being located at one end of the electrode assembly and extending toward the opening, the tab including a first portion and a second portion, the second portion surrounding a periphery of the first portion, and the separator wrapping the second portion to isolate the second portion from the shell, wherein along the axial direction, the first portion extends beyond the second portion and the separator, and the second portion does not extend beyond the separator. The battery cell of the present application solves a problem of short circuit in the battery cell.

Cylindrical battery cell, battery, electricity consuming device, manufacturing method and manufacturing system

Growing community of inventors

Ningde, China

Kai Wu