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Chinese Shadowboxing-Inspired Rigid-Flexible Cellulose-Based Solid Polymer Electrolyte for High Performance Lithium Battery
much economic benefit, but it also exited massive potential safety risk. All-solid-state polymer electrolyte
would be a perfect way to solve this problem effectively. Solid polymer electrolyte especially poly (ethylene
oxide) (PEO) running above 80 oC often results in poor mechanical strength and narrower electrochemical
stability window. It is a compelling challenge to exploit solid polymer electrolyte for lithium battery with both
high ionic conductivity and superior mechanical performance. Herein, we reported a new class of Chinese
shadowboxing-inspired rigid-flexible polymer electrolyte based on soft segment PEO and robust cellulose
supporting matrix. Such solid polymer electrolyte solves most of abovementioned disadvantages, with
superior mechanical strength, high ionic conductivity of all-solid-state polymer electrolyte
(1.3×10-4 S cm-1), improved thermal resistance (up to 180 oC) compared with PEO polymer electrolyte.
We believe this would offer a kind of new concept for designing and exploiting rigid-flexible solid
polymer electrolyte by selecting and adjusting various components according to different requirements for
rechargeable metallic lithium batteries (for example lithium-sulfur batteries and lithium-air batteries)
that will overcome the bottlenecks in developing future polymer lithium battery technology that powers