Button type electric cells

Details Button type electric cells Button type electric cells

1978-01-16

1979-01-30

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having means to accommodate electrode expansion

429162, H01M 600

Patent

active

041373758

ABSTRACT:
The invention relates to button type electric cells, i.e., cells comprising two cups containing, respectively, positive and negative active materials, fitted into each other and insulated from each other by a seal. The positive cup contains at least one compartment situated between it and the positive material and delimited on the positive material side by a perforated sheet; the compartment is filled with electrolyte when the active materials are in the state where they take up the greatest volume. Particularly applicable to lithium cells whose positive material is cupric oxide, lead oxide or red lead.

REFERENCES:
patent: 3438812 (1969-04-01), Cherney et al.
patent: 3839092 (1974-10-01), Hausler et al.
patent: 4018970 (1977-04-01), Jumel et al.
patent: 4020242 (1977-04-01), Okazaki et al.
patent: 4054726 (1977-10-01), Sauer et al.

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