A Physically Cross-Linked Hydrogen-Bonded Polymeric Composite Binder for High-Performance Silicon Anodes
Source abstract
Abstract
High-capacity silicon (Si) anodes in lithium-ion batteries require functional binders to accommodate the dramatic volume change and to improve the long-term stability during the charge/discharge cycles. Herein, a physically cross-linked hydrogen-bonded polymeric complex is reported and employed as an efficient binder for high-performance Si anodes. Composed of a blend of two commercially available polymers, poly(acrylic acid) (PAA) and poly(ethylene oxide) (PEO), the proposed PAA–PEO binders are synthesized via the solution mixing process. It is revealed that PEO brings in better elasticity and ionic conductivity, but at the expense of lower adhesion properties. With an optimized composition, the PAA–PEO binders show better cycling performance for Si anodes than the pure PAA binder. This study would provide insights for the design of low-cost and efficient binder for electrode materials with huge volume changes.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
Guangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy Testing, Guangzhou 511447, China
Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
Funding
Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Guangdong Key Laboratory of Battery Safety · Pearl River Talents Scheme · Science and Technology Program of the State Administration for Market Regulation of China
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