The Synergistic Effect of Cross-Linked and Electrostatic Self-Assembly Si/MXene Composites Anode for Highly Efficient Lithium-Ion Battery
Source abstract
Abstract
Silicon is a promising anode material for high-performance lithium-ion batteries (LIBs), but its rapid capacity degradation has significantly hindered its large-scale application. In this study, we propose an in situ self-assembly polymerization method to fabricate a stable silicon-based anode by leveraging electrostatic self-assembly technology, in situ esterification, and amidation reactions. The incorporation of a cross-linked polymer, combined with the synergistic effects of electrostatic interactions between negatively charged MXene and positively charged silane-coupling-agent-modified silicon, offers a novel strategy for enhancing the electrochemical performance of LIBs. Notably, annealed electrodes with a 65 wt% nmSi-NH2/MXene ratio demonstrate outstanding electrochemical performance, achieving a capacity of 929.5 mAh g⁻¹ at a current density of 1 A g⁻¹ after 100 charge/discharge cycles. These findings suggest that the integration of cross-linked polymers and electrostatic self-assembly can significantly improve the intercalation and overall electrochemical performance of silicon anodes in lithium-ion batteries.
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Research context
OpenAlex topics: MXene and MAX Phase Materials · Advancements in Battery Materials · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou 215123, China
Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK
School of Robotics, Xi’an Jiaotong-Liverpool University, Suzhou 215123, China
Department of Chemistry, Xi’an Jiaotong-Liverpool University, Suzhou 215123, China
Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, UK
State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210025, China
School of Integrated Circuit and Communication, Suzhou Vocational Institute of Industrial Technology, Suzhou 215104, China
Funding
National Natural Science Foundation of China · Suzhou Industrial Park Initiative Platform Development for Suzhou Municipal Key Lab for New Energy Technology · Key Program Special Fund in XJTLU · XJTLU Research Development Funding · SIP Construction of High-quality Innovation Platform
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