| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery including basic performances as a battery, excellent in charge/discharge characteristics in a high-temperature environment, and excellent in safety and reliability. <P>SOLUTION: In the nonaqueous electrolyte secondary battery, a negative electrode contains a lithium titanium composite oxide, a specific polyether copolymer and an electrolyte salt compound are appropriately selected as a polymer electrolyte composition, and the negative electrode and the polymer electrolyte composition are combined with a positive electrode. At least one of the negative electrode and the positive electrode constituting the nonaqueous electrolyte secondary battery contains the polyether copolymer as one component thereof. <P>COPYRIGHT: (C)2013,JPO&INPIT |
