文献类型：期刊文献

英文题名：Binder engineering for stabilizing solid electrolyte interphase (SEI) and enhancing electrochemical performances of aqueous lithium-ion batteries

作者：Xu, Taojun Yang, Kuan Peng, Cong Liu, Chang Qiu, Wei Liu, Yunhua Zhou, Liming Ma, Xianguo

第一作者：Xu, Taojun

通信作者：Qiu, W[1];Ma, XG[1]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550025, Peoples R China;[2]Guizhou Univ, Coll Chem & Chem Engn, Guiyang 550025, Peoples R China;[3]Guizhou Normal Univ, Sch Mat & Architectural Engn, Guiyang 550025, Peoples R China

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550025, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2026

卷号：1017

外文期刊名：JOURNAL OF ELECTROANALYTICAL CHEMISTRY

收录：;EI(收录号：20262420875154);WOS:【SCI-EXPANDED(收录号:WOS:001796790000001)】；

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant No. 51963004), Natural Science Foundation of Guizhou Province (Grants No. QKHJC-ZK [2023] Key 019, QKHJC-ZD [2025] 038, QKH-CG [2025] Key102, QKH-MS [2026] 259).

语种：英文

外文关键词：Binder engineering; Solid electrolyte interphase; Sodium carboxymethyl cellulose (CMC); Aqueous lithium-ion batteries

摘要：The formation of a robust and stable solid electrolyte interphase (SEI) layer is of vital significance for highperformance aqueous lithium-ion batteries (ALIBs). Electrode binders occupy an indispensable position in the fabrication and practical application of lithium-ion batteries, which can firmly anchor active electrode materials onto current substrates to maintain structural integrity and cycling stability. Nevertheless, conventional commercial binders are commonly employed in ALIB systems, while their intrinsic adaptability as well as modulation effects on the in-situ formation and evolution of solid electrolyte interphase (SEI) films have rarely been systematically investigated. Herein, we systematically investigate the influences of molecular structures of typical polyvinylidene fluoride (PVDF) and water-soluble binders including sodium carboxymethyl cellulose (CMC), lithium polyacrylate (PAA) on SEI characteristics and comprehensive electrochemical properties of LiMn2O4 (LMO)||TiO2 aqueous lithium-ion full batteries. Kinetic analyses reveal that the carboxylate groups derived from CMC serve as continuous ionic transport channels, effectively accelerating the migration kinetics of lithium ions. Meanwhile, intensive noncovalent interactions and intermolecular hydrogen-bond networks formed on the CMC molecular backbone endow the electrode with superior binding capability toward active electrode materials. CMC facilitates the formation of a stable SEI layer on the TiO2 surface. At a high rate of 10C, the LMO|| TiO2@CMC cell delivers an average specific capacity 56% and 21% higher than cells with conventional PVDF and PAA binders, respectively. Furthermore, CMC exhibits excellent cycling performance, achieving a capacity retention of 93.88% after 250 cycles at 2C. Furthermore, the fundamental applied research concerning ALIBs adopting water-soluble binders can offer essential theoretical guidance for establishing green recovery strategies and constructing circular utilization systems of aqueous secondary batteries.