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Examination of the discharge mechanism of Li/CF(x) cells : Comparison of the electrochemical reduction mechanisms of PTFE and (CF(x))n by lithium

Author
Baxam, Carl C.
Published
May 1, 1991.
Physical Description
1 electronic document
Additional Creators
Margalit, N.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
Swelling of (CF(x))(sub n) electrodes in commercial Li/(CF(x))(sub n) cells presents a limiting factor in cell design optimization. Examination of cathodes from such cells, after discharge, reveals a relation between cell operating temperatures and cathode swelling. Attempts to explain the swelling using the prevailing model for the cathode reaction have failed. A more suitable reaction mechanism is proposed based on the observed behavior of (CF(x))(sub n) electrodes on discharge and a comparison of the reaction products of (CF(x))(sub n) and polytetra fluoroethylene (PTFE) with lithium amalgams. The proposed mechanism is in agreement with the experimental data found in the literature.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19920017908.
Accession ID: 92N27151.
NASA. Marshall Space Flight Center, The 1990 NASA Aerospace Battery Workshop; p 475-493.
Terms of Use and Reproduction
No Copyright.
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