| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery, a battery pack and an automobile, which have excellent overcharge cycle performance. <P>SOLUTION: The nonaqueous electrolyte battery is characterized by provision of: a positive electrode 3; a negative electrode 4 containing a negative-electrode active material whose average activation potential is 0.6 V or higher with respect to a potential of metallic lithium; and a nonaqueous electrolyte including ceric ions and anions consisting of at least one selected from a group of PF<SB>6</SB><SP>-</SP>, BF<SB>4</SB><SP>-</SP>, ClO<SB>4</SB><SP>-</SP>, CF<SB>3</SB>SO<SB>3</SB><SP>-</SP>, N(CF<SB>3</SB>SO<SB>2</SB>)<SB>2</SB><SP>-</SP>, N(C<SB>2</SB>F<SB>5</SB>SO<SB>2</SB>)<SP>-</SP>and N(CF<SB>3</SB>SC(C<SB>2</SB>F<SB>5</SB>SO<SB>2</SB>)<SB>3</SB>)<SP>-</SP>. <P>COPYRIGHT: (C)2008,JPO&INPIT |
