Morphological changes in polymer electrolyte cells. Technical report 15 Jul 85-30 May 88

Technical Report · Sun May 01 04:00:00 EDT 1988

OSTI ID:6750985

Munshi, M Z; Owens, B B

Rechargeable solid-state batteries utilizing lithium anodes, V/sub 6/O/sub 13/ composite cathodes and polymer electrolytes made from polyethylene oxide - LiCF/sub 3/SO/sub 3/ complex were investigated at 100 C. The cells exhibited good cycling and reversibility. Optical and scanning electron microscopy were used, the morphological changes taking place at the electrodes and electrolyte as a function of cycle number. Post-mortem examination of the cell material indicated that the structures of lithium, electrolyte, and cathode become finer-grained and hence smoother. In addition, the structures were more coherent. The cathode appeared to undergo a re-healing process during the early stage of cycling. The results indicate that the structures are consistent with one another and that long cycle life can be obtained with these types of cells.

• Research Organization: Minnesota Univ., Minneapolis (USA). Corrosion Research Center
• OSTI ID: 6750985
• Report Number(s): AD-A-195821/4/XAB
• Country of Publication: United States
• Language: English

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