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U.S. Department of Energy
Office of Scientific and Technical Information

Sealed lead-acid secondary cell

Patent ·
OSTI ID:5828737
A sealed bed lead-acid secondary cell is described of the type that absorbs oxygen by the negative electrode, characterized in that a cylindrical safety valve having side walls and a closed end is provided to cover a cylindrical valve seat such that the side wall surrounds the valve seat and a tubular porous member impregnated with an oxidation retardant liquid substance is in contact with the safety valve.
Assignee:
Japan Storage Battery Co., Ltd., Kyoto
Patent Number(s):
US 4584248
OSTI ID:
5828737
Country of Publication:
United States
Language:
English