| 摘要 |
Provided are an additive for positive electrodes, which is capable of increasing the output of a lithium secondary battery and is capable of maintaining cycle characteristics even during high-speed charge and discharge; and a positive electrode for lithium secondary batteries. The additive for positive electrodes of lithium secondary batteries, which contains, as an essential constituent, a substituted polythiophene that has a repeating unit, which is obtained by substituting a hydrogen atom in the 3-position and/or in the 4-position of a thiophene ring with at least one group that is selected from the group consisting of a perfloroalkylalkoxy group, a perfloroalkoxy group, a perfloroalkoxyalkyl group and an alkyl group substituted with the perfloroalkylalkoxy group, as at least a part of a thiophene repeating group. |
