Nonaqueous electrolyte battery
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Feb 5, 2004
app pub date -
Jul 28, 2003
filing date -
Jul 31, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A nonaqueous electrolyte battery includes a positive electrode containing a positive electrode active material which is capable of occluding and releasing lithium, a negative electrode containing a main active material which is capable of occluding and releasing lithium, and a current collector of copper, wherein the negative electrode contains a subsidiary active material which supplies lithium from the negative electrode to the positive electrode at an overdischarge condition. This arrangement makes it possible to prevent deterioration of battery characteristics caused by overdischarge without using an external device such as a protective element or protective circuit.
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