Organic quinone compounds are expected to become the main cathode materials for the next generation of energy storage devices due to their high capacity. However, they would soluble in conventional organic electrolytes, causing a reduction in electrochemical performance. Interestingly, the plastic crystal electrolyte (PCE) based on succinonitrile (SN) not only has high ionic conductivity, but also can alleviate the solubility problem of quinone compounds. In this study, the 5 mol% LiTFSI (lithium bis(trifluoromethane)sulfonimide)/SN PCE was firstly chosen to match with quinone compound calix[4]quinone (C4Q) to assemble lithium−ion batteries (LIBs). The SN−based electrolyte system greatly boosting batteries life and achieving good rate performance. With SN−based electrolyte, LIBs displayed an initial discharge specific capacity of 424 mAh g⁻¹ (95% of theoretical specific capacity) at 0.1 C, and the capacity retention rate was still as high as 60% after 1000 cycles with the coulombic efficiency always around 100%. At 2 C, the capacity maintained around 140 mAh g⁻¹. Our work has great application value in LIBs due to the low cost and the excellent electrochemical performance of C4Q in LiTFSI/SN PCE.

由于有机醌化合物的高容量，它们有望成为下一代能量存储设备的主要阴极材料。但是，它们会溶于常规的有机电解质，导致电化学性能下降。有趣的是，基于丁二腈（SN）的塑料晶体电解质（PCE）不仅具有高离子电导率，而且还可以缓解醌类化合物的溶解性问题。在这项研究中，首先选择5 mol％LiTFSI（双（三氟甲烷）磺酰亚胺锂）/ SN PCE与醌化合物杯[4]醌（C4Q）匹配，以组装锂离子电池（LIB）。基于SN的电解液系统大大延长了电池寿命，并实现了良好的倍率性能。使用基于SN的电解质，LIB的初始放电比容量为424 mAh g在0.1 C时为^-1（理论比容量的95％），并且在1000次循环后容量保持率仍高达60％，而库仑效率始终约为100％。在2℃下，容量维持在约140mAh g ^-1。由于LiTFSI / SN PCE中C4Q的低成本和出色的电化学性能，我们的工作在LIB中具有巨大的应用价值。