Sodium ion battery system, method for using sodium ion battery, and method for producing sodium ion battery
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United States of America Patent
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Aug 23, 2016
Grant Date -
Apr 10, 2014
app pub date -
Oct 3, 2013
filing date -
Oct 9, 2012
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Abstract
The problem of the present invention is to provide a sodium ion battery system capable of intending higher capacity. The present invention solves the above-mentioned problem by providing a sodium ion battery system comprising a sodium ion battery and a charge control unit, wherein the anode active material is an active material having an Na2Ti6O13 crystal phase, and the above-mentioned charge control unit controls electric current and electric potential of the above-mentioned anode active material so as to cause a second Na insertion reaction on the lower electric potential side in addition to a first Na insertion reaction in the above-mentioned Na2Ti6O13 crystal phase.
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