US 12,482,885 B2
Battery cell, battery and electrical apparatus
Jun Xiao, Fujian (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Mar. 29, 2023, as Appl. No. 18/127,705.
Application 18/127,705 is a continuation of application No. PCT/CN2021/115166, filed on Aug. 27, 2021.
Prior Publication US 2023/0231241 A1, Jul. 20, 2023
Int. Cl. H01M 50/15 (2021.01); H01M 50/103 (2021.01); H01M 50/186 (2021.01)
CPC H01M 50/15 (2021.01) [H01M 50/103 (2021.01); H01M 50/186 (2021.01)] 10 Claims
OG exemplary drawing
 
1. A battery cell, comprising:
a case, an outer surface thereof away from the interior of the battery cell is clad with a first insulating layer;
an end cap assembly, which is disposed at an end portion of the case along the length direction of the battery cell; and
an end cap patch, which is attached to a surface of the end cap assembly away from the interior of the battery cell;
wherein
the end cap patch is adhered with a second insulating layer, and the second insulating layer is at least partially folded to the case and is connected with the first insulating layer, and a thickness of the second insulating layer is smaller than a thickness of the end cap patch,
the end cap assembly is provided with a convex hull protruding in a direction away from the interior of the battery cell, and shoulders located on both sides of the convex hull along the width direction of the battery cell,
the end cap patch is provided with a convex portion adapted to the convex hull, and an adhesion region located on both sides of the convex portion along the width direction of the battery cell, and
the adhesion region is adhered with the second insulating layer, so that the second insulating layer covers the shoulders.