Cathode active material for lithium ion secondary battery including lithium manganese borate compound and manganese oxide, and method for producing the same
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United States of America Patent
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Dec 1, 2015
Grant Date -
Dec 11, 2014
app pub date -
Sep 26, 2013
filing date -
Jun 5, 2013
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Abstract
Disclosed is a cathode active material for a lithium ion secondary battery which includes a lithium manganese borate compound and a manganese oxide. The lithium manganese borate compound contains a larger amount of lithium than conventional lithium manganese borate compounds. Therefore, a larger amount of lithium is deintercalated in a battery including the cathode active material, and as a result, the specific capacity of the battery reaches 100-160 mAh/g, which is much higher than that of conventional lithium ion secondary batteries (<80 mAh/g). Also disclosed is a method for producing the cathode active material.
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