Ningde Amperex Technology Limited

Contemporary Amperex Technology Co., Ltd.

Wei Liang

Na Liu

Long Wang

Qifeng Li

Sheng Cheng

Jifei Wang

Dingshan Ruan

Peilei Yang

Suochen Li

A battery includes a casing having two first peripheral portions and two second peripheral portions, a cell disposed within the casing, two conductive tabs electrically connected to the cell and exposed from at least one of the first peripheral portions, and an absorbent. Each of the second peripheral portions has a sealed region that has a sealed edge adjacent to the cell. The sealed region of at least one of the second peripheral portions has an inner sealed section disposed adjacent to the sealed edge, an outer sealed section, and an isolating section disposed between the inner sealed section and the outer sealed section. The absorbent is received in the isolating section for absorbing moisture or gas.

Battery

An aspect of the present application provides a battery cell including an electrode assembly and a package bag accommodating the electrode assembly, the electrode assembly includes a first end surface and a second end surface disposed opposite to the first end surface, and the battery cell further includes a support assembly disposed between the electrode assembly and the package bag, and the support assembly has a cavity disposed opposite to the first end surface or the second end surface. Another aspect of the present application provides a battery. The purpose of the present application is to increase the storage amount of the electrolyte in the battery cell and the battery.

Battery cell and battery

The present application relates to the technical field of Li-ion battery and, more particularly, to a positive electrode material for a Li-ion battery, a method for preparing the same, and a Li-ion battery containing the same. The positive electrode material for a Li-ion battery includes a substrate material and a coating layer coated on a surface of the substrate material, wherein the coating layer includes boron, a chemical formula of the substrate material is LiNiCoMnO, wherein 0.99&#x3c;x&#x2264;1.1, 0.3&#x3c;a&#x3c;0.9, 0.1&#x3c;b&#x3c;0.4, 0.1&#x3c;c&#x3c;0.4, and a+b+c=1; and the substrate material consists of a large particle substrate material and a small particle substrate material. In the present application, by gradation of large particles and small particles, the pellet density, the capacity density, the room-temperature cycle performance, the high-temperature cycle performance and low temperature discharging performance of the Li-ion battery are improved.

Positive electrode material for Li-ion battery, method for preparing the same, and Li-ion power battery containing the same

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Ningde, China

Wei Liang