Battery, electric apparatus, and method and apparatus for preparing battery

Patent metadata

Field	Value
Publication number	US-2023223650-A1
Application number	US-202318175248-A
Country	US
Kind code	A1
Filing date	Feb 27, 2023
Priority date	Oct 19, 2020
Publication date	Jul 13, 2023
Grant date	—

Abstract

A battery includes a battery cell, a box configured to accommodate the battery cell, a pipe configured to condense a gas inside the box to form a condensate, and a liquid collecting member provided between the battery cell and the pipe. The liquid collecting member is provided with an accommodating portion facing the pipe, and the accommodating portion is configured to collect the condensate.

First claim

What is claimed is:

1 . A battery comprising:
a battery cell; a box configured to accommodate the battery cell; a pipe configured to condense a gas inside the box to form a condensate; and a liquid collecting member provided between the battery cell and the pipe, the liquid collecting member being provided with an accommodating portion facing the pipe, and the accommodating portion being configured to collect the condensate.

2 . The battery according to claim 1 , wherein the accommodating portion is configured as a groove, and at least one end of the groove in a central axis direction of the pipe has an opening configured to release the condensate out of the groove through the opening.

3 . The battery according to claim 2 , wherein:
the battery cell is one of a plurality of battery cells arranged one by one; the groove extends in an arrangement direction of the plurality of battery cells; and a plane on which the opening of the groove is located is aligned with a side surface of an outermost battery cell in the arrangement direction of the battery cells.

4 . The battery according to claim 2 , wherein:
the battery cell is one of a plurality of battery cells arranged one by one; the groove extends in an arrangement direction of the plurality of battery cells; and a plane on which the opening of the groove is located is beyond the side surface of the outermost battery cell in the arrangement direction.

5 . The battery according to claim 4 , wherein the accommodating portion is further configured to accommodate at least part of the pipe.

6 . The battery according to claim 2 , wherein the groove is 1 mm to 5 mm in depth.

7 . The battery according to claim 1 , wherein the accommodating portion is further configured to accommodate at least part of the pipe.

8 . The battery according to claim 1 , wherein the liquid collecting member is insulative.

9 . The battery according to claim 1 , wherein the liquid collecting member and the pipe are connected in a bonding manner.

10 . The battery according to claim 1 , wherein:
the battery cell comprises a pressure relief mechanism, and the pressure relief mechanism is configured to be actuated in response to an internal pressure or temperature of the battery cell reaching a threshold, to discharge emissions and release the internal pressure; the pipe is configured to accommodate a fire extinguishing medium that passes through the pipe and condenses the gas inside the box to form the condensate, and the pipe is constructed to release the fire extinguishing medium in response to the pressure relief mechanism being actuated; and the liquid collecting member comprises a weak zone constructed to allow the fire extinguishing medium to penetrate through the weak zone to the battery cell in response to the pressure relief mechanism being actuated.

11 . The battery according to claim 10 , wherein the weak zone is configured as a through hole.

12 . The battery according to claim 10 , wherein the weak zone is configured as a structure that is destroyed to form the through hole in response to the pressure relief mechanism being actuated.

13 . The battery according to claim 10 , wherein the weak zone is provided at a surface of the groove closer to the battery cell.

14 . The battery according to claim 13 , further comprising:
a fastening member provided between the battery cell and the pipe, and configured to fasten the pipe to the battery cell.

15 . The battery according to claim 14 , wherein the fastening member comprises a plurality of buckles configured to clamp the pipe, and the plurality of buckles are arranged along a central axis direction of the pipe and located on both sides of the weak zone, to prevent the fire extinguishing medium and condensate located between the buckles from flowing along the central axis direction of the pipe out of a zone enclosed by the buckles at the groove.

16 . The battery according to claim 10 , further comprising:
a separator provided between the liquid collecting member and the pressure relief mechanism.

17 . The battery according to claim 16 , wherein:
the accommodating portion is a first accommodating portion; the separator is provided with a second accommodating portion at a zone corresponding to the pressure relief mechanism; and the liquid collecting member is provided in the second accommodating portion.

18 . An electric apparatus comprising the battery according to claim 1 , wherein the battery is configured to supply electrical energy.

19 . A method for preparing battery comprising:
providing a battery cell; providing a box, the box being configured to accommodate the battery cell; providing a pipe, the pipe being configured to condense a gas inside the box to form a condensate; and providing a liquid collecting member between the battery cell and the pipe, the liquid collecting member being provided with an accommodating portion facing the pipe, and the accommodating portion being configured to collect the condensate.

20 . An apparatus for preparing battery, comprising:
a first apparatus configured to provide a battery cell; a second apparatus configured to provide a box, the box being configured to accommodate the battery cell; a third apparatus configured to provide a pipe, the pipe being configured to condense a gas inside the box to form a condensate; and a fourth apparatus configured to provide a liquid collecting member between the battery cell and the pipe, the liquid collecting member being provided with an accommodating portion facing the pipe, and the accommodating portion being configured to collect the condensate.

Assignees

• Jiangsu Contemporary Amperex Tech Ltd

Inventors

• Zhao Fenggang
• Yang Haiqi
• Huang Xiaoteng
• Hong Jiarong
• Wang Wenli
• Hu Langchao

Classifications

• H01M50/30 Primary

  Arrangements for facilitating escape of gases · CPC title

• H01M50/141 Primary

  for protecting against humidity · CPC title

• H01M50/383 Primary

  Flame arresting or ignition-preventing means · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M10/6569

  Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation (heat pipes H01M10/6552) · CPC title