Lithium ion battery capable of being discharged to zero volts
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United States of America Patent
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Jul 22, 2003
Grant Date -
N/A
app pub date -
Sep 29, 2000
filing date -
Apr 26, 2000
priority date (Note) -
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Abstract
A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Substrate Dissolution Potential (SDP) to thus avoid low voltage substrate damage. The configuration includes a lithium nickel cobalt oxide positive active material combined with negative electrode comprising a titanium or titamum alloy substrate having a carbon active material formed thereon.
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