All-solid-state secondary lithium battery using solid polymer electrolyte and anthraquinone cathode

作者：Li, Wangyu; Chen, Long; Sun, Yunhe; Wang, Congxiao; Wang, Yonggang; Xia, Yongyao^*

来源：Solid State Ionics, 2017, 300: 114-119.

DOI：10.1016/j.ssi.2016.12.013

• Anthraquinone
• Solid polymer electrolyte
• All-solid-state battery

An all-solid-state battery was fabricated by using a PEO-base solid polymer as electrolyte and an organic material anthraquinone (AQ) as cathode. The anthraquinone delivers a specific discharge capacity of 183 mAh g(-1) at first cycle at current density of 20 mA g(-1), at 65 degrees C. The use of solid polymer electrolyte reduces the dissolution of organic active material greatly, improving the cycle performance of the battery. Therefore, the all-solid-state battery delivers a better cycling property. It can still retain a capacity of 136 mAh g(-1), after 50 cycles, corresponding to a capacity retention of 74%, while capacity retention of the cell using liquid electrolyte was only 28% after 20 cycles. The all-solid-state battery shows more stable interfacial resistance during charge-discharge process. It displays good rate ability and a better thermal stability.

• 出版日期2017-2
• 单位复旦大学