Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed...
Patent
1981-02-18
1982-11-23
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
429101, 296231, H01M 1052
Patent
active
043605729
ABSTRACT:
An electrochemical cell having a lithium anode, a thionyl chloride depolarizer and a sulphur dioxide passivation control agent which further includes having the pressure relieved to substantially reduce the internal pressure of the cell. The internal cell pressure is relieved by venting for sufficient time at an elevated temperature to reduce the internal cell pressure to less than five psi at room temperature, preferably by a plurality of venting cycles and a temperature ranging from room temperature to the elevated temperature. Normally, the elevated temperature ranges from at least 100.degree. F. to greater than 150.degree. F.
REFERENCES:
patent: 4115629 (1978-09-01), Dey
patent: 4218523 (1980-08-01), Kalnoki-Kis
patent: 4293784 (1978-06-01), Driscoll
patent: 4296185 (1981-10-01), Catanzarite
Chua David L.
Garoutte Kurt F.
Levy Louis L.
Honeywell Inc.
Mersereau Charles G.
Walton Donald L.
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