The interphasial degradation of 4.2 V-class poly(ethylene oxide)-based solid batteries beyond electrochemical voltage limit
Journal of Energy Chemistry（2022）
Abstract
The oxidation of PEO triggers severe surface reconstruction of NMC grains, thus blocking Li+ transport across the interface. The diffusion of the interphase degradation layer in solid batteries leads to well-aligned nanovoids in NMC grains.
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Key words
Poly(ethylene oxide),Surface reconstruction,Interphasial degradation,High-energy solid polymer batteries
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