High-performance fiber-shaped Li-ion battery enabled by a surface-reinforced self-supporting electrode

Cong Liu; Yining Lao; Fan Yang; Xiaoqi Gong; Xiaotong Wang; Lu Jiang; Zhiping Zeng; Dingshan Yu

doi:10.1039/d3cc00976a

High-performance fiber-shaped Li-ion battery enabled by a surface-reinforced self-supporting electrode

Chem Commun (Camb). 2023 May 16;59(40):6064-6067. doi: 10.1039/d3cc00976a.

Authors

Cong Liu¹, Yining Lao¹, Fan Yang¹, Xiaoqi Gong¹, Xiaotong Wang¹, Lu Jiang¹, Zhiping Zeng², Dingshan Yu¹

Affiliations

¹ Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Key Laboratory of High-Performance Polymer-based Composites of Guangdong Province, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. gaofenzi@mail.sysu.edu.cn.
² State Key Laboratory of Optoelectronic Materials and Technologies, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China. zzhip8@mail.sysu.edu.cn.

PMID: 37114389
DOI: 10.1039/d3cc00976a

Abstract

Herein, we develop a surface-reinforced self-supporting fiber electrode via the simple-yet-reliable ink-extrusion technology to introduce a thin polymer layer at the electrode surface, which endows the fiber architecture with sufficient rigidity for the subsequent fiber cell assembly. Such fiber LiFePO₄//Li₄Ti₅O₁₂ full cells exhibit high linear capacity output (0.144 mA h cm^-1) and energy density (0.267 mW h cm^-1).