Insulation tape, battery unit, battery and power consuming apparatus

Patent metadata

Field	Value
Publication number	US-12537255-B2
Application number	US-202218063639-A
Country	US
Kind code	B2
Filing date	Dec 8, 2022
Priority date	Jul 27, 2021
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

An insulation tape, a battery unit, a battery, a method and apparatus for preparing a battery unit, and a power consuming apparatus are provided. In some embodiments, the insulation tape includes a bottom surface coverage area, and a plurality of first side surface coverage areas and a plurality of second side surface coverage areas which are alternately arranged. Each of edges of the bottom surface coverage area is connected to one of the first side surface coverage areas or one of the second side surface coverage areas; each of the first side surface coverage areas includes a bottom covering portion and two side surface overlapping portions, a bottom edge of the bottom covering portion being connected to one of the edges of the bottom surface coverage area.

First claim

The invention claimed is:

1 . An insulation tape, comprising a bottom surface coverage area, and a plurality of first side surface coverage areas and a plurality of second side surface coverage areas which are alternately arranged, wherein a total number of the first side surface coverage areas and the second side surface coverage areas are equal to a number of edges of the bottom surface coverage area, and each of the edges of the bottom surface coverage area is connected to one of the first side surface coverage areas or one of the second side surface coverage areas; and, wherein
each of the first side surface coverage areas comprises a bottom covering portion and two side surface overlapping portions, a bottom edge of the bottom covering portion being connected to one of the edges of the bottom surface coverage area, and the two side surface overlapping portions being respectively connected to the two second side surface coverage areas on two sides of the first side surface coverage area; the bottom covering portions of the plurality of first side surface coverage areas and the second side surface coverage areas are all located on the same side of the bottom surface coverage area, so as to form an accommodation space, and the two side surface overlapping portions are arranged on the bottom covering portion in an overlapping manner, so as to seal the bottom of the accommodation space; and the bottom covering portion comprises a middle area, and a first side edge area and a second side edge area which are connected to two sides of the middle area, each one of the two side surface overlapping portions comprises an upper area and a lower area which are connected to each other, the lower area covers a part of the first side edge area or a part of the second side edge area, and the upper area covers a remaining part of the first side edge area or a remaining part of the second side edge area.

2 . The insulation tape according to claim 1 , wherein two side edges of the bottom covering portion are respectively connected to the two side surface overlapping portions.

3 . The insulation tape according to claim 2 , wherein a side edge of the first side edge area being connected to one of the side surface overlapping portions, and a side edge of the second side edge area being connected to the other side surface overlapping portion; and
the first side edge area, the side surface overlapping portion connected to the first side edge area, the second side edge area and the side surface overlapping portion connected to the second side edge area are all arranged on the middle area in an overlapping manner.

4 . The insulation tape according to claim 1 , wherein the upper area, the lower area and the adjacent second side surface coverage area are connected into a whole.

5 . The insulation tape according to claim 4 , wherein edges of the upper area and the lower area that are connected to the second side surface coverage area have a total length the same as a length of a corresponding edge of the second side surface coverage area, and are connected to the corresponding edge of the second side surface coverage area in an aligned manner.

6 . The insulation tape according to claim 1 , wherein the upper area is rectangular, the lower area is triangular, and the edge of the upper area connected to the lower area has a length greater than or equal to that of the edge of the lower area connected to the upper area.

7 . The insulation tape according to claim 1 , wherein a distance between the edge of the side surface overlapping portion away from the second side surface coverage area connected thereto and the other second side surface coverage area is less than a first preset distance.

8 . The insulation tape according to claim 1 , wherein the bottom edge of the bottom covering portion and a corresponding edge of the bottom surface coverage area have the same length and are connected to each other in an aligned manner.

9 . The insulation tape according to claim 1 , wherein the bottom of the first side surface coverage area is coated with a first adhesive structure, a bottom edge of the first adhesive structure is flush with a bottom edge of the first side surface coverage area, and a second preset distance is reserved between a side edge of the first adhesive structure and a side edge of the first side surface coverage area.

10 . The insulation tape according to claim 9 , wherein the first adhesive structure has a height greater than that of the bottom covering portion.

11 . The insulation tape according to claim 1 , wherein the accommodation space is configured to wrap a cell or a battery module.

12 . The insulation tape according to claim 11 , wherein an inner wall of the accommodation space is connected to the cell or the battery module in a bonded manner.

13 . The insulation tape according to claim 1 , wherein the insulation tape is made of a waterproof material.

14 . A battery unit comprising a cell and an insulation tape of claim 1 , wherein
the cell is provided with a housing, a bottom wall of the housing is covered by the bottom surface coverage area of the insulation tape, and side walls of the housing are covered by the first side surface coverage areas and the second side surface coverage areas of the insulation tape, so as to at least partially wrap the cell in the accommodation space of the insulation tape.

15 . A battery comprising a plurality of battery units of claim 14 .

16 . A battery comprising an insulation tape of claim 1 and a plurality of cells, wherein
the plurality of cells are wrapped in the accommodation space of the insulation tape;
the bottom of each first side surface coverage area of the insulation tape is coated with a first adhesive structure, and
each first side surface coverage area of the insulation tape for wrapping the cells is further coated with a second adhesive structure configured to be connected to an adjacent cell of the plurality of cells.

17 . The battery according to claim 16 , wherein in a height direction of the cells, the second adhesive structure is located above the first adhesive structure of the insulation tape, and the second adhesive structure and the first adhesive structure are spaced apart by a preset distance.

18 . The battery according to claim 17 , wherein the second adhesive structure has a viscosity greater than that of the first adhesive structure, and the second adhesive structure has a waterproofness lower than that of the first adhesive structure.

19 . The battery according to claim 17 , wherein the second adhesive structure has a thickness greater than that of the first adhesive structure.

Assignees

• Contemporary Amperex Technology Hong Kong Ltd

Inventors

• Chen Xin
• Ge Xiaoming
• Yuan Haifeng
• Lu Jiayuan
• Xiao Zhongxing
• Su Shuaifeng
• Zhang Junhua
• Liu Yang
• Zhang Jian

Classifications

• H01M2220/20

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

• H01M50/231

  having a layered structure · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M50/141

  for protecting against humidity · CPC title

• H01M50/1245

  characterised by the external coating on the casing · CPC title