How sulfur-containing additives stabilize Electrode/Electrolyte interface of high voltage Graphite/LiCoO2 battery

• Published in: Applied surface science Vol. 684; p. 161805
• Main Authors: Wang, Siwu, Guo, Huajun, Li, Xinhai, Wang, Zhixing, Peng, Wenjie, Wang, Jiexi, Duan, Hui, Li, Guangchao, Yan, Guochun
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2025
• Subjects: Electrode/electrolyte interface; Electrolyte; Film-forming additives; Lithium-ion battery; Lithium-ion battery; Film-forming additives; Electrolyte; Electrode/electrolyte interface

An “effective interfacial functional group (EIFG)”, sulfonate (−O-SO2-), was discovered in the electrode/electrolyte interphase (EEI) film of cells containing PS or DTD added electrolytes, which could stabilize the interphase and inhibit the continued decomposition of the electrolyte, thereby improv...