Electrochemical energy storage device
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United States of America Patent
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Issued Date -
Apr 28, 2005
app pub date -
Feb 26, 2004
filing date -
Oct 27, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
To acquire a high-output electrochemical energy storage device the range of operating voltage of which is large, a positive electrode provided with a positive electrode collector and positive electrode active material which is held by the positive electrode collector and can occlude/emit a metal ion, a negative electrode provided with a negative electrode collector and negative electrode active material which is held by the negative electrode collector and can occlude/emit the metal ion, a minutely porous separator held between the positive electrode and the negative electrode and an organic electrolyte are provided, and a range of operating voltage is equivalent to a range from below 2 V to 4 V or more.
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