A high polarity poly(vinylidene fluoride-co-trifluoroethylene) random copolymer with an all-trans conformation for solid-state LiNi0.8Co0.1Mn0.1O2/lithium metal batteries

A unique P(VDF-TrFE) that always shows an all- trans conformation displays a strong polarity to promote the dissociation of lithium salts, increasing the ionic conductivity of solid-state polymer electrolytes to 4.48 × 10 −4 S cm −1 at 25 °C.