Primary dry cell with masked separator

Details Primary dry cell with masked separator Primary dry cell with masked separator

1975-04-02

1978-02-14

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Blowout type

429 57, 429133, 429143, H01M 212

Patent

active

040740234

ABSTRACT:
Primary dry cell comprising a metal anode cup having therein a cathode mix containing an electrolyte, separated from the side wall of the anode cup by an electrolyte-permeable separator, and having an open end which is gas-tightly sealed by a closure including a vent, wherein an electrolyte-impermeable mask is positioned adjacent to the separator and extends substantially the whole distance between the bottom of the anode cup and the void space defined between the cathode mix and the seal closure.

REFERENCES:
patent: 1497316 (1924-06-01), Askin
patent: 1601475 (1926-09-01), Heise
patent: 2238376 (1941-04-01), Spicer
patent: 2822416 (1958-02-01), Parkinson

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