Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Co., Ltd.

Xueyang Sun

Yonghuang Ye

Qian Liu

Jianfu He

Jingxuan Sun

Haizu Jin

Xiaofu Xu

Tao Zhang

A capsule includes two membranes arranged in the capsule and configured to partition an interior of the capsule into a plurality of independent accommodation cavities, and a plurality of fragile structures comprising a first fragile structure, a second fragile structure, and a third fragile structure. A packaging strength of the first fragile structure is greater than a packaging strength of the second fragile structure. The packaging strength of the second fragile structure is greater than a packaging strength of the third fragile structure.

Tank, battery cell, battery, and electrical device

The present application discloses a battery cell, a battery and a power consumption apparatus. The battery cell may include: a housing filled with an electrolyte inside; at least one core assembly arranged in the housing and at least one closed liquid bladder holding another electrolyte, the liquid bladder being arranged in the housing, and at least being provided corresponding to a side wall of the core assembly; at least one weakened structure being provided on the liquid bladder. Under a condition that a pressure in the liquid bladder reaches a threshold value, the another electrolyte in the liquid bladder may break through the weakened structure and flow out of the liquid bladder.

Battery cell, battery and power consumption apparatus

An electrode assembly, secondary battery, battery module, battery pack and electrical device are provided. In some embodiments, the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator disposed between the positive electrode plate and the negative electrode plate, the positive electrode plate satisfies 0<CAP1/CAP2<1, in which CAP1 represents capacity of the first positive electrode film layer in Ah, CAP2 represents capacity of the second positive electrode film layer in Ah, and the electrode assembly satisfies R/R−R/R≥0, in which Rrepresents resistance of the first positive electrode film layer in Ω, Rrepresents resistance of the second positive electrode film layer in Ω, Rrepresents resistance of the first negative electrode film layer in mΩ and Rrepresents resistance of the second negative film layer in mΩ. The present applicant may extend the cycle life of the secondary battery.

Electrode assembly, secondary battery, battery module, battery pack and electrical device

This application discloses a battery unit. The battery unit includes a housing, at least one cell, and a buffer. The at least one cell is accommodated in the housing, the buffer is disposed corresponding to a side wall of the cell, and the buffer is provided with an accommodating cavity. A periphery of the accommodating cavity includes at least one packaging structure, the packaging structure includes at least one level of packaging region with a predetermined length. When pressure in the accommodating cavity exceeds packaging strength of the packaging structure, the packaging region is opened to form a buffer space that communicates with the accommodating cavity, reducing influence caused by swelling of the cell.

Growing community of inventors

Ningde, China

Xueyang Sun