| 摘要 |
PURPOSE:To increase storage performance by adding activated alumina in a battery. CONSTITUTION:A flat type lithium-poly carbon fluoride system organic electrolyte battery consists of a battery case 1 made of stainless steel, a sealing plate 2 made of stainless steel, a negative active material 3, a positive current collector 4 made of titanium, and a positive mix 5. The positive mix 5 is formed by molding in a pellet form the mixture of 100pts.wt. poly carbon fluoride serving as active material, 10pts.wt. acetylene black, and 14pts.wt. fluorine resin binder. Electrolyte is prepared by dissolving 1mol/l of lithium fluoroborate in the equal volume mixture of propylene carbonate and 1,2-dimethoxyethane, then by adding activated alumina to them. The activated alumina adsorbs or decomposes impurities represented by peroxides, and the surface of lithium is kept active and increase in internal impedance is suppressed. Thereby, storage performance is increased. |
