Protective lithium ion conducting ceramic coating for lithium me

Details Protective lithium ion conducting ceramic coating for lithium me Protective lithium ion conducting ceramic coating for lithium me

1993-10-14

1994-05-24

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, 429 48, 296235, H01M 1040

Patent

active

053147650

ABSTRACT:
A battery structure including a cathode, a lithium metal anode and an electrolyte disposed between the lithium anode and the cathode utilizes a thin-film layer of lithium phosphorus oxynitride overlying so as to coat the lithium anode and thereby separate the lithium anode from the electrolyte. If desired, a preliminary layer of lithium nitride may be coated upon the lithium anode before the lithium phosphorous oxynitride is, in turn, coated upon the lithium anode so that the separation of the anode and the electrolyte is further enhanced. By coating the lithium anode with this material lay-up, the life of the battery is lengthened and the performance of the battery is enhanced.

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D. S. Rajoria and J. P. deNeufville, "Improved Coatings for Lithium Anodes", pp. 488-497 in Proc. Int. Power Sources Symp. 1986.
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Energy Technology, vol. 115, 1991, p. 255 reference to pat appln 89/308,861, Nov. 30, 1989 by applicants Yoneyama et al.

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