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Title: Hydrogen gas relief valve

Patent ·
OSTI ID:865455

An improved battery stack design for an electrochemical system having at least one cell from which a gas is generated and an electrolyte in communication with the cell is described. The improved battery stack design features means for defining a substantially closed compartment for containing the battery cells and at least a portion of the electrolyte for the system, and means in association with the compartment means for selectively venting gas from the interior of the compartment means in response to the level of the electrolyte within the compartment means. The venting means includes a relief valve having a float member which is actuated in response to the level of the electrolyte within the compartment means. This float member is adapted to close the relief valve when the level of the electrolyte is above a predetermined level and open the relief valve when the level of electrolyte is below this predetermined level.

Research Organization:
ENERGY DEVELOPMENT ASSOC
DOE Contract Number:
AC02-78ET26923
Assignee:
Energy Development Associates, Inc. (Madison Hgts., MI)
Patent Number(s):
US 4517261
OSTI ID:
865455
Country of Publication:
United States
Language:
English