Lithium-ion cell, battery and power device
AssigneeZhuhai Cosmx Battery Co., Ltd.
InventorsXiaohu Fu, Shiguang Li, Hu Zou
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Abstract
The application discloses a lithium-ion cell, a battery and a power device, which belongs to the technical field of lithium-ion battery structure. A side surface of an end portion of a cell body of the lithium-ion cell has a thin area relative to a middle portion of the cell body, and the lithium-ion cell further includes adhesive paper attached to the thin area. In this application, a special adhesive paper is designed and attached to the thin area formed due to thinning processing at the edge of the end portion of the lithium-ion cell body, and is suitable for compensating for the thin area of the lithium-ion cell, so that the cell has a flat surface, is stressed uniformly during hot-pressing formation and has a good bonding.
Claims16
A lithium-ion cell, a side face of an end portion of a cell body of the lithium-ion cell having a thin area relative to a middle portion of the cell body, wherein the lithium-ion cell further comprises an adhesive paper attached to the thin area;
- wherein the thin area is at least one inclined plane formed by a decreasing thickness of the end portion of the cell body in a direction from the middle portion of the cell body to an end surface of the cell body;
- the adhesive paper is an adhesive paper whose thickness increases in the direction from the middle portion of the cell body to the end surface of the cell body;
- wherein the adhesive paper comprises a substrate layer and an adhesive layer, and the substrate layer has an outer plane and an inner inclined plane having an included angle α relative to the outer plane, and the adhesive layer is disposed on the inner inclined plane.
Dependencies are inferred from the claim text.