| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery containing a lithium-containing transition metal oxide that releases oxygen during the initial charge as a positive active material and having high discharge capacity and excellent cycle characteristics at high voltage. <P>SOLUTION: The nonaqueous electrolyte secondary battery includes a positive electrode containing an active material, a negative electrode, and a nonaqueous electrolyte solution in which an electrolyte is dissolved in a nonaqueous solvent, and the positive active material contains the lithium-containing transition metal oxide that releases oxygen during the initial charge, and the nonaqueous solvent contains a fluorinated cyclic carbonate in which fluorine atoms are directly bonded to a carbonate ring. <P>COPYRIGHT: (C)2011,JPO&INPIT |
