| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte battery for a large battery, having battery characteristics superior in charging/discharging characteristic at a low cost by using the electrode active material consisting of a transition metal borate complex, using Fe, Mn, Ti, etc., for the positive or negative active material. SOLUTION: At least one kind of Fe, Mn and Ti is contained as M of a transition metal borate complex, given by the general formula M3 BO6 (M is a transition metal). In M3 BO6 , the oxide or hydroxide of M, and B2 O3 are blended in the stoichiometric composition or with more B2 O3 by about 5%, and the mixture is temporarily baked for six hours at approximately 700 deg.C in the atmosphere, baked for about two days at approximately 900 deg.C, and then rapidly cooled and synthesized. The transition metal borate complex is used as the electrode active material. The electrode active material can constitute a positive or a negative electrode, and a counter electrodes is formed of including alkali metal, in particular, lithium, and an alkali metal non-aqueous electrolyte secondary battery which is good in practicability is provided at a low cost, using the electrolyte containing the non-aqueous solvent. |
