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Flexible, Scalable, and Highly Conductive Garnet‐Polymer Solid Electrolyte Templated by Bacterial Cellulose
Author(s) -
Xie Hua,
Yang Chunpeng,
Fu Kun Kelvin,
Yao Yonggang,
Jiang Feng,
Hitz Emily,
Liu Boyang,
Wang Sha,
Hu Liangbing
Publication year - 2018
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201703474
Subject(s) - electrolyte , materials science , ionic conductivity , conductivity , bacterial cellulose , ceramic , fast ion conductor , polymer , cellulose , chemical engineering , battery (electricity) , ionic liquid , nanotechnology , quasi solid , electrode , composite material , dye sensitized solar cell , organic chemistry , catalysis , power (physics) , chemistry , physics , quantum mechanics , engineering
Solid‐state electrolytes are a promising candidate for the next‐generation lithium‐ion battery, as they have the advantages of eliminating the leakage hazard of liquid solvent and elevating stability. However, inherent limitations such as the low ionic conductivity of solid polymer electrolytes and the high brittleness of inorganic ceramic electrolytes severally impede their practical application. Here, an inexpensive, facile, and scalable strategy to fabricate a hybrid Li 7 La 3 Zr 2 O 12 (LLZO) and poly(ethylene oxide)‐based electrolyte by exploiting bacterial cellulose as a template is reported. The well‐organized LLZO network significantly enhances the ionic conductivity by extending long transport pathways for Li ions, exhibiting an elevated conductivity of 1.12 × 10 −4 S cm −1 . In addition, the hybrid electrolyte presents a structural flexibility, with minor impedance increase after bending. The facile and applicable approach establishes new principles for the strategy of designing scalable and flexible hybrid polymer electrolytes that can be utilized for high‐energy‐density batteries.