| 摘要 |
PURPOSE:To concurrently meet high energy density, low self discharge, high charge-discharge efficiency, and long cycle life by using an oxidation copolymer of a specified aniline family compound and benzene family compound and/or phenol family compound in a positive electrode. CONSTITUTION:In a nonaqueous secondary battery mainly comprising a positive electrode, a negative electrode, and a nonaqueous electrolyte, an oxidation copolymer of aniline family compound containing 1-50mol% of one or more compounds selected from benzene family compound indicated in the formula (a) and phenol family compound indicated in the formula (b), and benzene family compound and/or phenol compound is used as the positive electrode. The content of the benzene family compound and/or the phenol family compound is 1-50mol%, preferably 1-30mol%. When the content is less than 1mol%, the effect of copolymer is not obtained and the battery performance is not improved. When the content exceeds 50mol%, the doping rate is decreased and the battery performance is also decreased. |
