Vertical aligned solid‐state electrolyte templated by nanostructured “upright” cellulose film layers for advanced cell performance
Hao Zhang,
Xingye An,
Yiluo Yang,
Yinying Long,
Shuangxi Nie,
Liqin Liu,
Guihua Yang,
Zhongjian Tian,
Haibing Cao,
Zhengbai Cheng,
Hongbin Liu,
Yonghao Ni
Affiliations
Hao Zhang
Tianjin Key Laboratory of Pulp and Paper, State Key Laboratory of Food Nutrition and Safety Tianjin University of Science and Technology Tianjin People's Republic of China
Xingye An
Tianjin Key Laboratory of Pulp and Paper, State Key Laboratory of Food Nutrition and Safety Tianjin University of Science and Technology Tianjin People's Republic of China
Yiluo Yang
Tianjin Key Laboratory of Pulp and Paper, State Key Laboratory of Food Nutrition and Safety Tianjin University of Science and Technology Tianjin People's Republic of China
Yinying Long
Tianjin Key Laboratory of Pulp and Paper, State Key Laboratory of Food Nutrition and Safety Tianjin University of Science and Technology Tianjin People's Republic of China
Shuangxi Nie
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control College of Light Industry and Food Engineering, Guangxi University Nanning People's Republic of China
Liqin Liu
Tianjin Key Laboratory of Pulp and Paper, State Key Laboratory of Food Nutrition and Safety Tianjin University of Science and Technology Tianjin People's Republic of China
Guihua Yang
State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology, Shandong Academy of Sciences Jinan People's Republic of China
Zhongjian Tian
State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology, Shandong Academy of Sciences Jinan People's Republic of China
Haibing Cao
Zhejiang Jing Xing Paper Joint Stock Co., Ltd. Pinghu People's Republic of China
Zhengbai Cheng
Zhejiang Jing Xing Paper Joint Stock Co., Ltd. Pinghu People's Republic of China
Hongbin Liu
Tianjin Key Laboratory of Pulp and Paper, State Key Laboratory of Food Nutrition and Safety Tianjin University of Science and Technology Tianjin People's Republic of China
Yonghao Ni
Department of Chemical Engineering University of New Brunswick Fredericton New Brunswick Canada
Abstract In this work, an “upright” cellulose layered template, which can be precisely controlled by the fiber orientation and thickness of anisotropic cellulose film, was first developed to prepare vertically aligned Li7La3Zr2O12 (LLZO) ceramic membrane with low tortuosity and uniform porosity. The flexible composite solid‐state electrolytes (CSEs) were synthesized by incorporating poly(ethylene oxide) (PEO) polymer into LLZO architecture, and exhibited distinguished mechanical strength, elevated ionic conductivity (2.1 × 10−4 S cm−1) and excellent interface compatibility with lithium anodes. The assembled LiFePO4/lithium full cells assembled with as‐obtained CSEs can reach large discharge capacities of 172.3 mAh g−1 with coulombic efficiencies of above 99% and capacity retention of 93.1% even after 200 cycles. These results clearly demonstrate that the sophisticated design of vertical aligned cellulose layered template with fine‐scale size and exquisite architecture is a promising and practical approach in fabricating flexible LLZO@PEO‐LiTFSI CSEs with high‐safety and high‐performance.
