Flyash/polymer composite electrolyte with internal binding interaction enables 
highly-stable extrinsic-interfaces of all-solid-state lithium batteries

Wang, Xufeng; Fu, Chuankai; Feng, Zhijun; Huo, Hua; Yin, Xucai; Gao, Guolin; Yin, Geping; Ci, Lijie; Tong, Yujin; Jiang, Zaixing; Wang, Jiajun

doi:10.1016/j.cej.2021.131041

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Flyash/polymer composite electrolyte with internal binding interaction enables highly-stable extrinsic-interfaces of all-solid-state lithium batteries

Wang, X., Fu, C., Feng, Z., Huo, H., Yin, X., Gao, G., et al. (2022). Flyash/polymer composite electrolyte with internal binding interaction enables highly-stable extrinsic-interfaces of all-solid-state lithium batteries. Chemical Engineering Journal, 428: 131041. doi:10.1016/j.cej.2021.131041.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-E46A-0 Version Permalink: https://hdl.handle.net/21.11116/0000-0008-E46C-E

Genre: Journal Article

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Creators:
Wang, Xufeng¹, Author
Fu, Chuankai¹, Author
Feng, Zhijun², Author
Huo, Hua¹, Author
Yin, Xucai³, Author
Gao, Guolin¹, Author
Yin, Geping¹, Author
Ci, Lijie⁴, Author
Tong, Yujin^{5, 6}, Author
Jiang, Zaixing^{1, 3}, Author
Wang, Jiajun^{1, 3}, Author

Affiliations:
1MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China, ou_persistent22
2School of Material Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China, ou_persistent22
3HIT Research Institute (Zhao Yuan) of New Materials and Intelligent Equipment Technology Co Ltd, Zhao Yuan 265400, China, ou_persistent22
4State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China, ou_persistent22
5Faculty of Physics, Duisburg-Essen University, D-47057 Duisburg, Germany, ou_persistent22
6Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546

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Abstract: Satisfactory electrochemical stability of extrinsic-interfaces between electrodes and electrolyte is the prerequisite for the safe and durable applications of all-solid-state Lithium batteries (ALBs). Unfortunately, the oxidative decomposition of anions from Li-salt at the extrinsic-interfaces of cathode side leads to the electrochemical instability during charge process. Here, a novel composite polymer electrolyte (CPE) containing flyash-treated (FA) submicro/micron particles and poly(ethylene oxide) (PEO) matrix is reported. After the addition of FA filler, Li⁺ transference number increases from 0.21 to 0.37 and electrochemical stability window reaches 5.2 V. FA as filler can efficiently immobilize (trifluoromethanesulfonyl) imide (TFSI^–) anions and mitigate their irreversible oxidative decomposition at the extrinsic-interface of cathode||CPE due to the internal binding interaction between TFSI^– anions and FA particles. ALBs using CPE with FA can not only provide stable extrinsic-interfaces for uniform Li deposition, but also tolerate strong electrochemical polarization with excellent cycling performance.

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Language(s): eng - English

Dates: Submitted: 2021-03-04Accepted: 2021-06-23Published Online: 2021-06-27Date issued: 2022-01-15

Publication Status: Issued

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Rev. Type: Peer

Identifiers: DOI: 10.1016/j.cej.2021.131041

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Title: Chemical Engineering Journal

Source Genre: Journal

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Publ. Info: Lausanne : Elsevier

Pages: - Volume / Issue: 428 Sequence Number: 131041 Start / End Page: - Identifier: ISSN: 1385-8947
CoNE: https://pure.mpg.de/cone/journals/resource/954925622211