Heat transfer arrangement for limiting pressure developed in...

Details Heat transfer arrangement for limiting pressure developed in... Heat transfer arrangement for limiting pressure developed in...

H - Electricity

01

M

319/46

H01M 2/12 (2006.01)

Patent

CA 1125847

36 BA 3232 ABSTRACT OF THE DISCLOSURE An arrangement is provided for limiting the pressure developed by the combination of gases of a gaseous mixture, such as hydrogen and oxygen in a closed container, for example, in a rechargeable battery. The arrangement includes material having substantial heat capacity and having a high surface-to-volume ratio disposed in free spaces in the container wherein the hydrogen and oxygen may accumulate during the charging or discharging of the battery. When the hydrogen and oxygen combine to form a gaseous product or vapor at a high pressure, the gaseous product is cooled by the aforementioned material to limit the pressure to an amount below that capable of causing rupture of the container. The material may further, in the case of a condensible vapor such as that formed by the combination of hydrogen and oxygen effect a temperature reduction which results in condensation of the vapor to further reduce the pressure to insure against rupture of the container.

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