| 摘要 |
PROBLEM TO BE SOLVED: To restrict the deterioration of the positive electrode material at the time of charge and discharge, and improve the charging and discharging cycle characteristic of a non-aqueous electrolyte battery by bonding the positive electrode material of the non-aqueous electrolyte battery provided with a positive electrode made of the crystal positive electrode material, which can store and discharge lithium, with the non-crystal compound having lithium ion conductivity. SOLUTION: V2 O5 having lithium ion conductivity is mixed in the positive electrode material LiNi0.9 Co0.7 O2 having a mean grain diameter at about 5 micron at 0.5-15wt.% in relation to the positive electrode material, and they are heated, and thereafter, they are quickly cooled so as to obtain the compound. A predetermined quantity of the conductive agent and the binder are mixed in this compound so as to adjust the slurry. This slurry is applied on both surfaces of a positive electrode collector, which is formed of an Al foil, by doctor blade method, and heating is performed in the vacuum condition so as to obtain a positive electrode. In the case where MoS2 , MnO2 , Li-alumina, LiTi2 (PO4 )3 is used as a non-crystal compound having lithium ion conductivity, similar result can be obtained. |
