Promote the conductivity of solid polymer electrolyte at room temperature by constructing a dual range ionic conduction path

(a) The synthesis of different poly(ethylene glycol)@ carbonates (B-PEG@DMC). (b) 13C NMR and (c) 1H NMR spectra of B-PEG@DMC. (d) FTIR of PEG-PG-EG (the monomer) and resulting B-PEG@DMC and (e) the redshift of B-PEG@DMC (2900) compared to free DMC.

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