Title:
FLAME RETARDANT SHEET AND MANUFACTURING METHOD FOR SAME, AND BATTERY MODULE
Document Type and Number:
WIPO Patent Application WO/2024/004967
Kind Code:
A1
Abstract:
Provided are: a flame retardant sheet which exhibits excellent heat insulation and impact resistance, and which, even when a battery cell fires, enables preventing flame from spreading to an adjacent battery cell or battery case; and a battery module which exhibits excellent safety. In a flame retardant sheet (1), an inorganic fiber cloth (20) which includes second inorganic fibers (21) and in which inorganic particles (15) are present among the second inorganic fibers (21) is disposed on at least one surface of a heat insulating layer (10) including first inorganic fibers (11) and the inorganic particles (15). The flame retardant sheet (1) is manufactured by pouring an aqueous slurry, which contains a material for forming the heat insulating layer (10), on the inorganic fiber cloth (20) and dewatering and molding the resultant, to thereby form a sheet. Further, a battery module (100) is composed of: a plurality of battery cells (110); a battery case (120) for accommodating therein the battery cells (110); and the flame retardant sheet (1).
Inventors:
SHIMADA SHOHEI (JP)
JIMBO NAOYUKI (JP)
JIMBO NAOYUKI (JP)
Application Number:
PCT/JP2023/023681
Publication Date:
January 04, 2024
Filing Date:
June 26, 2023
Export Citation:
Assignee:
IBIDEN CO LTD (JP)
International Classes:
A62C2/00; A62C3/16; C09K21/02; F16L59/02; H01M10/613; H01M10/658; H01M50/204
Domestic Patent References:
| WO2021022130A1 | 2021-02-04 | |||
| WO2019187313A1 | 2019-10-03 |
Foreign References:
| US20120077015A1 | 2012-03-29 | |||
| JP2023094425A | 2023-07-05 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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