Thermal insulation material for battery and nonaqueous electrolyte secondary battery
AssigneeNitto Denko Corporation
InventorsTakehiro UI, Shu SASAKI, Kazuhiro FUKE, Maho KAWAKAMI
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Abstract
A thermal insulation material for a battery of the present invention includes a compression adjustment layer and a thermal insulation layer laminated to each other. A ratio of a thickness of the compression adjustment layer to a thickness of the thermal insulation layer is more than 0.5 and less than 4.5, and a compressive stress is from 0.34 MPa through 3.45 MPa when the compression adjustment layer is compressed and deformed at any rate within a range of from 25% through 70% in a thickness direction with respect to a thickness before compression.
Claims7
A thermal insulation material for a battery, comprising:
- a compression adjustment layer and a thermal insulation layer laminated to each other, wherein
- a ratio of a thickness of the compression adjustment layer to a thickness of the thermal insulation layer is more than 0.5 and less than 4.5, and
- a compressive stress is from 0.34 MPa through 3.45 MPa when the compression adjustment layer is compressed and deformed at any rate within a range of from 25% through 70% in a thickness direction with respect to a thickness before compression.
Dependencies are inferred from the claim text.