Equipotential apparatus, equipotential structure, battery and electric device

Patent metadata

Field	Value
Publication number	US-12573722-B2
Application number	US-202117540370-A
Country	US
Kind code	B2
Filing date	Dec 2, 2021
Priority date	Oct 27, 2020
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

The present application provides an equipotential apparatus, an equipotential structure, a battery and an electric device. The equipotential apparatus includes an electrically-conductive member and an elastic support. The electrically-conductive member is at least partially arranged on a surface of the elastic support, and the elastic support is configured to provide an elastic support force for the electrically-conductive member to achieve an equipotential connection between the first electric conductor and the second electric conductor. After being elastically deformed, the elastic support can provide an elastic support force for the electrically-conductive member. Under the effect of the elastic support force, the electrically-conductive member can be made to be squeezed to the first electric conductor and the second electric conductor, such that the electrically-conductive member is in close contact with the first electric conductor and the second electric conductor.

First claim

What is claimed is:

1 . A battery, comprising:
an equipotential structure comprising a first electric conductor, a second electric conductor, a middle electric conductor and an equipotential apparatus; wherein the middle electric conductor is provided on the first electric conductor and/or the second electric conductor, and the middle electric conductor is configured to be a conducting strip bent in a Z shape; wherein the equipotential apparatus comprises an electrically-conductive member; and an elastic support, wherein the electrically-conductive member is at least partially arranged on a surface of the elastic support, and the elastic support is configured to provide an elastic support force for the electrically-conductive member so as to squeeze the electrically-conductive member between the first electric conductor and the middle electric conductor, or squeeze the electrically-conductive member between the middle electric conductor and the second electric conductor, or squeeze the electrically-conductive member between the middle electric conductor to achieve an equipotential connection between the first electric conductor and the second electric conductor.

2 . The battery according to claim 1 , wherein the elastic support comprises a first surface and a second surface that are opposite to each other;
the electrically-conductive member comprises a first conductive portion, a second conductive portion and a third conductive portion, the first conductive portion being connected to the second conductive portion through the third conductive portion; the first conductive portion covers the first surface and the first conductive portion is configured to be squeezed to the first electric conductor; and the second conductive portion covers the second surface and the second conductive portion is configured to be squeezed to the second electric conductor.

3 . The battery according to claim 1 , wherein the electrically-conductive member and the first electric conductor are connected to each other through a first conductive adhesive layer; and/or the electrically-conductive member and the second electric conductor are connected to each other through a second conductive adhesive layer.

4 . The battery according to claim 1 , wherein the equipotential structure further comprises a connector; and
the connector is configured to connect the equipotential apparatus between the first electric conductor and the second electric conductor.

5 . The battery according to claim 1 , further comprising:
a box comprising the first electric conductor; a battery unit accommodated in the box; and a thermal management member for managing a temperature of the battery unit, the thermal management member comprising the second electric conductor.

6 . The battery according to claim 1 , wherein a first hole supplied for a connector to pass through is provided on the elastic support.

7 . The battery according to claim 6 , wherein a second hole and a third hole supplied for the connector to pass through and located at two axial ends of the first hole are provided on the electrically-conductive member.

8 . The battery according to claim 1 , wherein the electrically-conductive member is made of a flexible material.

9 . The battery according to claim 8 , wherein the electrically-conductive member covers the surface of the elastic support at a complete circle along a circumferential direction.

10 . The battery according to claim 8 , wherein the electrically-conductive member comprises one or more of a conductive cloth, a tin foil paper and an aluminum foil paper.

11 . An electric device, comprising the battery according to claim 1 .

Assignees

• Jiangsu Contemporary Amperex Tech Ltd

Inventors

• Li Xiang
• Gu Yanlong
• Huang Xiaoteng
• Ye Weida

Classifications

• H01M50/572

  Means for preventing undesired use or discharge · CPC title

• H01M10/625

  Vehicles · CPC title

• H01M50/249 Primary

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title