Patent ID: 11894510
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A battery pack, comprising:
a box assembly; and
a plurality of battery units arranged in the box assembly, wherein the battery units are divided into a plurality of battery unit groups;, wherein the box assembly comprises:
a box body; and
a plurality of fixed beams arranged in parallel in the box body, wherein one or more battery unit groups are placed between two fixed beams;
a plurality of constraint components, wherein each constrain component covers the one or more battery unit groups placed between the two fixed beams, and is attached to the two fixed beams; and
an outer cover attached to the box body, covering the constraint components;, wherein each battery unit comprises:
a shell; and
an electrode assembly arranged in the shell;, wherein the electrode assembly comprises a first pole piece, a second pole piece, and a diaphragm arranged between the first pole piece and the second ole piece; and, wherein
the electrode assembly is of a wound structure and is flat, the outer surface of the electrode assembly comprises two flat surfaces, and the two flat surfaces are oppositely arranged along a height direction of the battery pack; or
the electrode assembly is of a laminated structure, and the first pole piece and the second pole piece are stacked along a height direction of the battery pack.