Battery pack
First Claim
Patent Images
1. A battery pack comprising:
- a plurality of batteries;
a housing for containing the batteries; and
at least one partition plate for separating the batteries from one another,wherein the at least one partition plate includes a metal mesh and a heat insulating layer disposed on each side of the metal mesh,the at least one partition plate is disposed between facing parts of adjacent batteries of the plurality of batteries,the heat insulating layer includes a foam material capable of foaming at a temperature selected from a range of 110°
C. or more and less than 200°
C., so that the thickness of the heat insulating layer increases when the foam material foams,the foam material comprises a silicate of an alkali metal containing water of crystallization, andthe heat insulating layer is in an unexpanded state under normal operating conditions.
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Accused Products
Abstract
A battery pack includes: a plurality of batteries; a housing for containing the batteries; and at least one partition plate for separating the batteries from one another. The at least one partition plate includes a metal mesh and a heat insulating layer disposed on each side of the metal mesh. The heat insulating layer includes a foam material capable of foaming at a temperature of 110° C. or more and 200° C. or less, so that the thickness of the heat insulating layer increases when the foam material foams. Even when one of the batteries contained in the battery pack generates abnormal heat, the conduction of the heat to other batteries can be effectively suppressed.
13 Citations
9 Claims
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1. A battery pack comprising:
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a plurality of batteries; a housing for containing the batteries; and at least one partition plate for separating the batteries from one another, wherein the at least one partition plate includes a metal mesh and a heat insulating layer disposed on each side of the metal mesh, the at least one partition plate is disposed between facing parts of adjacent batteries of the plurality of batteries, the heat insulating layer includes a foam material capable of foaming at a temperature selected from a range of 110°
C. or more and less than 200°
C., so that the thickness of the heat insulating layer increases when the foam material foams,the foam material comprises a silicate of an alkali metal containing water of crystallization, and the heat insulating layer is in an unexpanded state under normal operating conditions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification