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Updated: Sep 13, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Recent progress of poly (vinylidene fluoride) based solid-state ionogel electrolytes in improving electrochemical
Jian-Xi Liu1, Jia-Yi Yin2, Yan-Fei Huang1
1Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, PR China.
None:
Ionic liquids (ILs)-incorporated solid-state polymer electrolytes (iono-SPEs) have high ionic conductivities and can address the safety issues caused by the flammable liquid electrolytes. However, when assembled into lithium metal batteries (LMBs), most iono-SPEs displayed limited cycling durations due to the much poorer lithium ions (Li+) transportation in polymer phase than in IL phase and polymer-IL interphase. Therefore, it is of great significance to reduce the phase-dependent differences in Li+ transport. Poly(vinylidene fluoride) (PVDF) and its based co-/ter- polymers with good electrochemical stability and high mechanical strength show great promise to improve the ionic conductivity of the polymer phase of iono-SPEs. However, there is no review to summarize the recent progress of PVDF based iono-SPEs in improving their electrochemical performance. In this review, we summarize the modifications on PVDF based iono-SPEs in terms of four aspects, namely, PVDF matrix modification, introduction of fillers, ILs modification, and interface modififaction. In particular, a recent work conducted by our group by employing a unique poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) [P(VDF-TrFE-CTFE)] as the matrix of ILs to uniform the Li+ transportation in different phases of iono-SPEs is reviewed in detail. Moreover, future developments of high-performance PVDF-based iono-SPEs are outlooked. This review can bring effective insights into the future development of iono-SPEs.
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