| 摘要 |
PURPOSE:To obtain a battery having excellent cycle charge/discharge characteristics and withstanding a long life by containing a specific monophenol compound in a positive electrode. CONSTITUTION:Polyaniline is used as the main active material of a positive electrode, and a monophenol compound expressed by the formula I or the formula II is contained in the positive electrode. R1-R3 in the formula I are an alkyl group, and R1 is an alkylene group and R2 is an alkyl group in the formula II. 2,6-di-tert-butyl-4-methyl phenol or 2,6-tert-butyl-4-ethyl phenol, for example, is used for the monophenol compound expressed in the formula I or II as an anti-oxidant. The reduction of the discharge capacity is small when many cycle charges/discharges are repeated, and a long life can be obtained. |
