| 摘要 |
PROBLEM TO BE SOLVED: To provide binder blending being insoluble in a non-aqueous solvent and capable of enduring the exposure to a high temperature without reducing discharge efficiency as a binder for electrode of a lithium battery. SOLUTION: An SVO electrochemical battery having a high efficiency possible output is provided. A cathode is manufacture by applying a mixture composed of an active substance, an electrical conductive additive, and the mixing binder to an aluminum foil current collector. This mixing binder is composed of a mixture of heat-treated polyamic acid and PVDF. The use of the heat- treated polyamic acid enables the maintenance of adhesion of electric conductivity to the current collector, and a PVDF part of the binder gives the flexibility. A particularly preferable pair of electrodes are composed of a lithium/vanadium oxide silver (Li/SVO) chemical system, and this binder mixture enables coating of active slurry of SVO on the current collector without causing peeling off between layers. |
