Encapsulated lithium alloy electrodes having barrier layers
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United States of America Patent
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Jul 2, 2002
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N/A
app pub date -
Nov 1, 1999
filing date -
Nov 1, 1999
priority date (Note) -
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Abstract
A method employing a bonding layer is used to form active metal electrodes having barrier layers. Active metals such as lithium are highly reactive in ambient conditions. The method involves fabricating a lithium electrode or other active metal electrode without depositing the barrier layer on a layer of metal. Rather a smooth barrier layer is formed on a smooth substrate such as a web carrier or polymeric electrolyte. A bonding or alloying layer is formed on top of the barrier layer. Lithium or other active material is then attached to the bonding layer to form the active metal electrode. A current collector may also be attached to the lithium or active metal during the process.
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