Solid-state electrolytes(SSEs)with high ionic conductivity,mechanical stability,and high thermal sta-bility,as well as the stringent requirement of application in high-temperature fuel cells and lithium-ion batteries is receiving increasing attention.Polymer nanocomposites(PNCs),combining the advantages of inorganic materials with those of polymeric materials,offer numerous opportunities for SSEs design.In this work,we report a facile and general one-pot approach based on polymerization-induced microphase separation(PIMS)to generate PNCs with bi-continuous microphases.This synthetic strategy transforms a homogeneous liquid precursor consisting of polyoxometalates(POMs,H3PW12O40,L17[V15O36(CO3)]]),poly(ethylene glycol)(PEG)macro-chain-transfer agent,styrene and divinylbenzene monomers,into a ro-bust and transparent monolith.The resulting POMs are uniformly dispersed in the PEG block(PEG/POM)to form a conducting pathway that successfully realizes the effective transfer of protons and lithium ions,while the highly cross-linked polystyrene domains(P(S-co-DVB))as mechanical support provide outstand-ing mechanical properties and thermal stability.As the POM loading ratio up to 35 wt％,the proton con-ductivity of nanocomposite reaches as high as 5.99×10-4 S/cm at 100℃in anhydrous environment,which effectively promotes proton transfer under extreme environments.This study broadens the appli-cation of fuel cells and lithium-ion batteries in extreme environments.

Lu Liu;Zicheng Wu;Zhao Zheng;Qianjie Zhou;Kun Chen;Panchao Yin

South China Advanced Institute for Soft Matter Science and Technology,School of Molecular Science and Engineering,South China University of Technology,Guangzhou 510640,China;Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices,South China University of Technology,Guangzhou 510640,China

中国化学快报（英文版）

[1]Lu Liu;Zicheng Wu;Zhao Zheng;Qianjie Zhou;Kun Chen;Panchao Yin-.Polymerization-induced microphase separation of polymer-polyoxometalate nanocomposites for anhydrous solid state electrolytes)[J].中国化学快报（英文版）,2022(09):4326-4330

microphases,V15O36

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