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Title: Protective lithium ion conducting ceramic coating for lithium metal anodes and associate method

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.
Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
869317
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5314765
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Country of Publication:
United States
Language:
English
Subject:
protective; lithium; conducting; ceramic; coating; metal; anodes; associate; method; battery; structure; including; cathode; anode; electrolyte; disposed; utilizes; thin-film; layer; phosphorus; oxynitride; overlying; coat; separate; desired; preliminary; nitride; coated; phosphorous; separation; enhanced; material; lay-up; life; lengthened; performance; lithium phosphorus; phosphorus oxynitride; metal anode; thin-film layer; lithium anode; structure including; lithium metal; film layer; electrolyte disposed; ceramic coating; battery structure; /429/29/