Overdischarge protection for rechargeable cells
Patent
·
OSTI ID:7156438
This patent describes a rechargeable electrochemical cell. It comprises a cell casing having side-walls, a top and bottom housing therein a positive terminal, a negative terminal, an anode of alkaline metal connected to the negative terminal, a cathode connected to the positive terminal, a non-aqueous electrolyte, a first microporous membrane separating the anode from the cathode being characterized as allowing the flow of electrolyte through the pores of the first microporous membrane but inhibiting passage of alkaline metal dendrites therethrough, a tab of conductive material extending from the anode to a portion proximate the cell casing and a second microporous membrane located between the tab and cell casing. The second microporous membrane being characterized as being less resistant to passage of alkaline metal dendrites than the first microporous membrane.
- Assignee:
- Atlus Corp., San Jose, CA
- Patent Number(s):
- US 4873158
- Application Number:
- PPN: US 7244488A
- OSTI ID:
- 7156438
- Country of Publication:
- United States
- Language:
- English
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