BATTERY PACK
First Claim
1. A battery pack comprising:
- a plurality of secondary batteries;
a housing for containing the secondary batteries; and
at least one heat insulating layer for separating the secondary batteries from one another,wherein the at least one heat insulating layer includes a foam material capable of foaming at a first predetermined temperature of 110°
C. or more and less than 200°
C., andthe thickness of the heat insulating layer increases when the foam material foams.
1 Assignment
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Accused Products
Abstract
A battery pack includes: a plurality of secondary batteries; a housing for containing the secondary batteries; and at least one heat insulating layer for separating the secondary batteries from one another. The at least one heat insulating layer includes a foam material capable of foaming at a first predetermined temperature of 110° C. or more and less than 200° C. When the foam material foams, gas bubbles are produced in the heat insulating layer, so that the thickness of the heat insulating layer increases. The battery pack thus has excellent safety, exhibiting a high heat insulation effect in the event of abnormal heat generation of the batteries.
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Citations
14 Claims
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1. A battery pack comprising:
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a plurality of secondary batteries; a housing for containing the secondary batteries; and at least one heat insulating layer for separating the secondary batteries from one another, wherein the at least one heat insulating layer includes a foam material capable of foaming at a first predetermined temperature of 110°
C. or more and less than 200°
C., andthe thickness of the heat insulating layer increases when the foam material foams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification