Low-temperature fabrication of thin-film energy-storage devices
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United States of America Patent
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Nov 8, 2005
Grant Date -
Jan 3, 2002
app pub date -
Mar 23, 2001
filing date -
Mar 24, 2000
priority date (Note) -
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Abstract
A method and system for fabricating solid-state energy-storage devices including fabrication films for devices without an anneal step, especially a cathode anneal of thin-film batteries. A film of an energy-storage device is fabricated by depositing a first material layer to a location on a substrate. Energy is supplied directly to the material forming the film. The energy can be in the form of energized ions of a second material. Supplying energy directly to the material and/or the film being deposited assists the growth of the crystalline structure of film. For lithium-ion energy-storage devices, the first material is an intercalation material, which releasably stores lithium ions therein. Supercapacitors and energy-conversion devices are also fabricated according the methods.
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