| 摘要 |
A solid amorphous electrolyte composition for a thin-film battery. The electrolyte composition includes a lithium phosphorus oxynitride material containing a sulfide ion dopant wherein the atomic ratio of sulfide ion to phosphorus ion (S/P) in the electrolyte ranges greater than 0 up to about 0.2. The composition is represented by the formula: <?in-line-formulae description="In-line Formulae" end="lead"?>Li<SUB>t</SUB>P<SUB>x</SUB>Al<SUB>y</SUB>O<SUB>u</SUB>N<SUB>v</SUB>S<SUB>w</SUB>,<?in-line-formulae description="In-line Formulae" end="tail"?> where 5x+3y=5, 2u+3v+2w=5+t, t ranges from about 2.9 to about 3.3, x ranges from about 0.94 to about 0.85, y ranges from about 0.094 to about 0.26, u ranges from about 3.2 to about 3.8, v ranges from about 0.13 to about 0.46, and w ranges from zero to about 0.2. Thin film batteries containing such electrolyte films have less tendency to fail prematurely.
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