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Rechargeable battery which combats shape change of the zinc anodeA rechargeable cell or battery is provided in which shape change of the zinc anode is combatted by profiling the ionic conductivity of the paths between the electrodes. The ion flow is greatest at the edges of the electrodes and least at the centers, thereby reducing migration of the zinc ions from edges to the center of the anode. A number of embodiments are disclosed in which the strength and/or amount of electrolyte, and/or the number and/or size of the paths provided by the separator between the electrodes, are varied to provide the desired ionic conductivity profile.
Document ID
19760022611
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Cohn, E. M.
(NASA Headquarters Washington, DC United States)
Date Acquired
August 8, 2013
Publication Date
August 3, 1976
Subject Category
Energy Production And Conversion
Accession Number
76N29699
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-3,972,727|NASA-CASE-HQN-10862-1
Patent Application
US-PATENT-APPL-SN-604374
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