Ceramic electrolytes are important in ceramic-liquid hybrid electrolytes(CLHEs),which can effectively solve the interfacial issues between the electrolyte and electrodes in solid-state batteries and provide a highly efficient Li-ion transfer for solid-liquid Li metal batteries.Understanding the ionic transport mechanisms in CLHEs and the corresponding role of ceramic electrolytes is crucial for a rational design strategy.Herein,the Li-ion transfer in the ceramic electrolytes of CLHEs was confirmed by tracking the 6Li and 7Li substitution behavior through solid-state nuclear magnetic resonance spectroscopy.The cera-mic and liquid electrolytes simultaneously participate in Li-ion transport to achieve highly efficient Li-ion transfer in CLHEs.A spontaneous Li-ion exchange was also observed between ceramic and liquid elec-trolytes,which serves as a bridge that connects the ceramic and liquid electrolytes,thereby greatly strengthening the continuity of Li-ion pathways in CLHEs and improving the kinetics of Li-ion transfer.The importance of an abundant solid-liquid interface for CLHEs was further verified by the enhanced electrochemical performance in LiFePO4/Li and LiNi0.8Co0.1Mn0.1O2/Li batteries from the generated inter-face.This work provides a clear understanding of the Li-ion transport pathway in CLHEs that serves as a basis to build a universal Li-ion transport model of CLHEs.

Kai Shi;Likun Chen;Zipei Wan;Jie Biao;Guiming Zhong;Xue Li;Lu Yang;Jiabin Ma;Wei Lv;Fuzeng Ren;Hongqi wang;Yong Yang;Feiyu Kang;Yan-Bing He

Shenzhen Geim Graphene Center,Institute of Materials Research(iMR),Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,China;Laboratory of Advanced Spectro-electrochemistry and Li-ion Batteries,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China;Guangdong Liwang New Energy Co.,Ltd.,Dongguan 523731,China;Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China;State Key Laboratory of Physical Chemistry of Solid Surfaces,Collaborative Innovation Center of Chemistry for Energy Materials and Department of Chemistry,Xiamen University,Xiamen 361005,China

科学通报（英文版）

[1]Kai Shi;Likun Chen;Zipei Wan;Jie Biao;Guiming Zhong;Xue Li;Lu Yang;Jiabin Ma;Wei Lv;Fuzeng Ren;Hongqi wang;Yong Yang;Feiyu Kang;Yan-Bing He-.Lithium-ion spontaneous exchange and synergistic transport in ceramic-liquid hybrid electrolytes for highly efficient lithium-ion transfer)[J].科学通报（英文版）,2022(09):946-954

CLHEs,cera

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