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Title:
HEAT-RESISTANT HEAT-INSULATING SHEET, METHOD OF MANUFACTURING SAME, AND ASSEMBLED BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/202901
Kind Code:
A1
Abstract:
Provided are a heat-resistant heat-insulating sheet that has superior heat resistance and heat insulation and is flame-retardant and lightweight, and an assembled battery in which the heat-resistant heat-insulating sheet is inserted between single cells. A heat-resistant heat-insulating sheet (10) has a total thickness of 0.1-2.5 mm and a gross heat of combustion of no greater than 1 MJ/m2, and is provided with: a low-density layer (1) in which the proportion of a content of a clay mineral to a total content of inorganic fibers and the clay mineral is less than 50 mass%; and a first high-density layer (2) and a second high-density layer (3) provided respectively on both faces of the low-density layer (1), wherein in each of the first high-density layer (2) and the second high-density layer (3), the proportion of a content of the clay mineral to a total content of the inorganic fibers and the clay mineral is no less than 50 mass%, and the thickness of the first high-density layer (2) and the second high-density layer (3) is no greater than the thickness of the low-density layer (1) and no less than 0.05 mm.

Inventors:
TACHIBANA HIROYASU (JP)
KOYANAGI ATSUSHI (JP)
Application Number:
PCT/JP2020/007362
Publication Date:
October 08, 2020
Filing Date:
February 25, 2020
Export Citation:
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Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
D21H13/36; D04H1/4209; D21H13/40; D21H19/38; F16L59/02; H01M10/613; H01M10/647; H01M10/653; H01M10/6555; H01M10/658; H01M50/204; H01M50/293
Foreign References:
JP2009084744A2009-04-23
JP2018115409A2018-07-26
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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