Electrolyte

Fluoroether electrolytes can stabilize Li metal batteries. The position and number of F atoms functionalized on 1,2-diethoxyethane (DEE) strongly affect electrolyte performance. The authors concluded that the –CHF2 group, rather than the commonly assumed –CF3 group, is optimal for electrolytes with high ionic conductivity, low and stable overpotential, and long cycle life in Li // NMC811 and Li // LFP cells. Balance between fast ion conduction and electrode stability must be achieved through molecular design and chemical synthesis.

Research: Electrolyte Source: Yu, Rudnicki, Zhang, Huang, Celik, Oyakhire, Chen, Kong, Kim, Xiao, Wang, Zheng, Kamat, Kim, Bent, Qin, Cui, and Bao

Volta Foundation

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