Two isometric thionated-NDI cathodes (cis-2S and trans-2S) were obtained by replacing O with S in the imide groups which improves the battery performance compared with parent NDI (P-NDI). Remarkably, the position of S atoms plays an important role as the potential plateau of cis-2S was 100 mV higher than trans-2S, 256 mV higher than P-NDI, and the capacity of cis-2S was twice than that of trans-2S, four times as P-NDI after 400 cycles.

原文链接：https://doi.org/10.1021/acs.chemmater.0c03661