| 摘要 |
A nonaqueous electrolyte air battery has a positive electrode comprises at least a catalyst which activates oxygen, a conductive material and a binder, when a thermal decomposition starting temperature of the binder is T1° C. and a thermal decomposition ending temperature of the binder is T2° C. A signal with any of mass numbers of 81, 100, 132 and 200 is present in pyrolysis mass spectrometry of the binder in a range of T1° C. to T2° C. Where a mass spectrum signal area of T1-100° C. or higher and lower than T1° C. is X, and a mass spectrum signal area from T1° C. to T2° C. is Y, the X and Y satisfy a relation of X≦Y. |
| 主权项 |
1. A nonaqueous electrolyte air battery comprising:a positive electrode; a negative electrode; a separator sandwiched between the positive electrode and the negative electrode; and an exterior member including holes for supplying oxygen to the positive electrode,
wherein the positive electrode comprises at least a catalyst which activates oxygen, a conductive material and a binder; when a thermal decomposition starting temperature of the binder is T1° C. and a thermal decomposition ending temperature of the binder is T2° C., a signal with any of mass numbers of 81, 100, 132 and 200 is present in pyrolysis mass spectrometry of the binder in a range of T1° C. to T2° C.; where a mass spectrum signal area of T1-100° C. or higher and lower than T1° C. is X, and a mass spectrum signal area from T1° C. to T2° C. is Y, the X and Y satisfy a relation of X≦Y; the binder is a polymer containing fluorine; the decomposition starting temperature of the binder is a temperature at which in a principal weight decrease process, a weight is decreased by 5% of a weight loss in the weight decrease process when the binder is analyzed by a thermogravimetric analyzer; the thermal decomposition ending temperature of the binder is a temperature at which in a principal weight decrease process, a weight is decreased by 95% of a weight loss in the weight decrease process when the binder is analyzed by a thermogravimetric analyzer; and the mass spectrum signal area is an area of a signal with a mass number at which the mass spectrum signal area from T1° C. to T2° C. is a maximum area among a plurality of signals selected in terms of mass numbers of 81, 100, 132 and 200 in a mass spectrum of the binder alone. |
