| 摘要 |
PURPOSE:To improve the contact between a positive electrode and electrolyte, and especially increase the electric-discharge characteristic at a high current density of the positive electrode by using a silicate- or phosphate-system heat- proof inorganic adhesive as a binding agent for the positive electrode. CONSTITUTION:A positive electrode for a nonaqueous electrolyte battery is made by applying a paste, which contains a positive active material, a conductive agent and a binding agent used as main components, to a current collecting body before the current collecting body is coated with the paste is molded. In the positive electrode, the binding agent is a silicate- or phosphate-system heat-proof inorganic adhesive. The above silicate-system heat-proof inorganic adhesive is prepared by dissolving or dispersing an alkali-metal silicate or its derivative, colloidal silica, and a monomer or polymer of a silicate such as an alkyl silicate in water, and appropiately contains a hardener, a heat-proof pigment, a dispersion-stabilizing agent and the like. The above phosphate-system heat-proof inorganic adhesive is prepared by dissolving or dispersing an acid metal-phosphate, an acid salt, such as aluminum phosphate, magnesium phosphate or calcium phosphate in water, and appropriately contains a hardener, a heat-proof pigment, a dispersion-stabilizing agent and the like. |
