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A 3D Nanostructured Hydrogel‐Framework‐Derived High‐Performance Composite Polymer Lithium‐Ion Electrolyte
Author(s) -
Bae Jiwoong,
Li Yutao,
Zhang Jun,
Zhou Xingyi,
Zhao Fei,
Shi Ye,
Goodenough John B.,
Yu Guihua
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201710841
Subject(s) - electrolyte , materials science , conductivity , lithium (medication) , composite number , ionic conductivity , chemical engineering , polymer , fast ion conductor , ion , percolation (cognitive psychology) , composite material , chemistry , electrode , organic chemistry , medicine , neuroscience , engineering , biology , endocrinology
Solid‐state electrolytes have emerged as a promising alternative to existing liquid electrolytes for next generation Li‐ion batteries for better safety and stability. Of various types of solid electrolytes, composite polymer electrolytes exhibit acceptable Li‐ion conductivity due to the interaction between nanofillers and polymer. Nevertheless, the agglomeration of nanofillers at high concentration has been a major obstacle for improving Li‐ion conductivity. In this study, we designed a three‐dimensional (3D) nanostructured hydrogel‐derived Li 0.35 La 0.55 TiO 3 (LLTO) framework, which was used as a 3D nanofiller for high‐performance composite polymer Li‐ion electrolyte. The systematic percolation study revealed that the pre‐percolating structure of LLTO framework improved Li‐ion conductivity to 8.8×10 −5 S cm −1 at room temperature.