Fire-retardant assembly and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2024405358-A1
Application number	US-202418679450-A
Country	US
Kind code	A1
Filing date	May 31, 2024
Priority date	Jun 2, 2023
Publication date	Dec 5, 2024
Grant date	—

Abstract

Embodiment of the present disclosure relate to a fire-retardant assembly including a fire-retardant member including a fire-retardant material and a pillar-shaped exterior material for accommodating the fire-retardant member therein, and a method of manufacturing the same. And the fire-retardant assembly is arranged into an insertion space formed between a plurality of battery cells and an accommodation case.

First claim

What is claimed is:

1 . A fire-retardant assembly comprising:
a fire-retardant member including a fire-retardant material; and an exterior material configured to enclose the fire-retardant member therein.

2 . The fire-retardant assembly of claim 1 , wherein the exterior material starts to melt at a preset temperature.

3 . The fire-retardant assembly of claim 2 , wherein the preset temperature is lower than a melting point of the fire-retardant member.

4 . The fire-retardant assembly of claim 1 , wherein the fire-retardant member includes silicon dioxide (SiO 2 ).

5 . The fire-retardant assembly of claim 1 , wherein at least one end portion of both end portions of the exterior material is tapered.

6 . The fire-retardant assembly of claim 1 , wherein the exterior material includes:
a body portion having a pipe shape; a first end portion coupled to an upper side of the body portion to close one open end of both open ends of the body portion; and a second end portion coupled to a lower side of the body portion to close the other open end, and the first end portion is tapered in a direction away from the body portion.

7 . The fire-retardant assembly of claim 6 , wherein the second end portion includes a flat surface perpendicular to the body portion.

8 . The fire-retardant assembly of claim 1 , wherein the exterior material includes:
a body portion having a cylindrical shape, in which at least one end of both ends of the body portion is open; and an end portion coupled to the body portion to close the at least one open end.

9 . The fire-retardant assembly of claim 1 , wherein a height of the exterior material is greater than a maximum length of one end face of the exterior material in a direction perpendicular to the height of the exterior material.

10 . The fire-retardant assembly of claim 1 , wherein the fire-retardant member includes a plurality of fire-retardant particles.

11 . The fire-retardant assembly of claim 1 , wherein the fire-retardant member is provided as a roll-shaped fire-retardant sheet.

12 . The fire-retardant assembly of claim 1 , wherein the exterior material has a cylindrical shape.

13 . The fire-retardant assembly of claim 1 , wherein the exterior material has a polyhedral shape.

14 . The fire-retardant assembly of claim 1 , wherein the fire-retardant member is a solid filler.

15 . The fire-retardant assembly of claim 14 , wherein the solid filler is in a form of a plurality of granular materials.

16 . A method of manufacturing a fire-retardant assembly including an exterior material, which includes a body portion having a pillar shape, of which at least one end of both ends is open, and an end portion coupled to the open one end, and a fire-retardant member accommodated in a fire-retardant space formed by the exterior material, the method comprising:
inserting the fire-retardant member into the fire-retardant space; and coupling the end portion to the open one end of the body portion.

17 . The method of claim 16 , further comprising, after the coupling of the end portion, a thermoforming operation of applying heat to the fire-retardant assembly.

18 . The method of claim 17 , wherein the thermoforming operation includes fusing the end portion to the body portion.

19 . A method of manufacturing a fire-retardant assembly including an exterior material, which includes a body portion in a pillar shape and a first end portion and a second end portion coupled to both open ends of the body portion, and a fire-retardant member accommodated in a fire-retardant space formed by the exterior material, the method comprising:
coupling the body portion to the first end portion to form the fire-retardant space; inserting the fire-retardant member into the fire-retardant space; and coupling the second end portion to the open one end of the body portion.

20 . The method of claim 19 , further comprising, after the coupling of the second end portion, a thermoforming operation of applying heat to the fire-retardant assembly,
wherein the thermoforming operation includes fusing the first end portion and the second end portion to the body portion.

Assignees

• Sk On Co Ltd

Inventors

• Han Kyu Hyun
• Noh Yun Joo
• Lee Gang U
• Lee Jong Chan
• Hwang Won Gab

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M10/0585

  of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title

• H01M10/04

  Construction or manufacture in general (H01M10/058, H01M10/12, H01M10/28, H01M10/38 take precedence) · CPC title

• H01M10/658 Primary

  by thermal insulation or shielding · CPC title

• C09K21/02

  Inorganic materials · CPC title