Thin film battery and electrolyte therefor

Details Thin film battery and electrolyte therefor Thin film battery and electrolyte therefor

2004-09-28

2008-08-12

Cantelmo, Gregg (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C204S192150

Reexamination Certificate

active

07410730

ABSTRACT:
A solid amorphous electrolyte composition for a thin-film battery. The electrolyte composition includes a lithium phosphorus oxynitride material containing an aluminum ion dopant wherein the atomic ratio of aluminum ion to phosphorus ion (Al/P) in the electrolyte ranges greater than zero up to about 0.5. The composition is represented by the formula:in-line-formulae description="In-line Formulae" end="lead"?LitPxAlyOuNvSw,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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