| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery which can suppress the temperature rise, and a negative electrode using it. <P>SOLUTION: A negative electrode active material layer 12 contains a negative electrode active material, and a polymer in which vinylidene fluoride is made as a binder component. Calorific value by a differential scanning calorimetry when charging the negative active material layer 12 is 500 J/g or less and preferably 400 J/g or less in a range of 230°C or more and 370°C or less. Furthermore, differences between the maximum calorific value and the calorific value at 100°C are 1.70 W/g or less and preferably 1.60 W/g or less. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
