| 摘要 |
PROBLEM TO BE SOLVED: To reduce an adding quantity of conductive auxiliaries, enhance density of a positive electrode mix and the ratio of an active material, realize large capacity of a battery, and improve a self-discharge characteristic by using flake-shaped graphite having a very wide plane as the conductive auxiliaries to a positive electrode active material. SOLUTION: Fig. is a cross-sectional drawing of a silver oxide battery. A positive electrode mixture 2 on which an adding quantity of graphite is set to 2%, a negative electrode mixture 4, electrolyte and a separator 3, are filled in a prescribed procedure in a positive electrode can 1, a negative electrode can 5 and a gasket 6 which become a vessel. The edge of the positive electrode can 1 is calked, and a battery is constituted. At this point, flake-shaped graphite on which a thickness is 0.5 to 9μm and an average diameter of a plane is 50t o 150μm, is used as the conductive auxiliaries of the positive electrode mix 2. A silver oxide on which an average particle diameter is 0.1 to 5μm may be used as a main positive electrode active material. Since density of the positive electrode mixture and the ratio of an active material are high, large electric capacity can be provided.
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