储能科学与技术2025，Vol.14Issue(12)：4493-4508,16.DOI:10.19799/j.cnki.2095-4239.2025.0663
具有优异力学性能和电导率的LA132@CMC-Na水系复合黏结剂制备及适配锂电硅基负极研究
A water-based composite binder interconnected by hydrogen bonds exhibiting outstanding mechanical properties and electrical conductivity for silicon-based anodes in lithium-ion batteries
摘要
Abstract
Binders play a crucial role in lithium-ion batteries,and selecting high-performance binders with compatible physicochemical properties can significantly enhance the stability of electrode materials during lithium storage.In this study,a water-based composite binder interconnected by hydrogen bonds,designated as LA132@CMC-Na,was developed and its performance in silicon-based materials was investigated.The efficient intermolecular hydrogen bonding endowed the LA132@CMC-Na binder with superior mechanical properties,while its elastic self-healing capability effectively mitigated the volume expansion of silicon-based materials during lithiation/delithiation.The abundant active functional groups on the molecular chains of LA132@CMC-Na further facilitated lithium-ion diffusion kinetics in the silicon-based electrode due to their high electron activity and simultaneously reduced the internal resistance of the battery.Half-cells employing the LA132@CMC-Na binder delivered a high reversible specific capacity of 1415.21 mAh/g after 200 cycles at 0.2 A/g,with no significant capacity decay.These findings provide valuable insights into the design of high-performance binders for silicon-based anodes in lithium-ion batteries and demonstrate their promising potential for practical applications.关键词
水系复合黏结剂/硅基负极/氢键/电导率/力学性能Key words
water-based composite binder/silicon-based anode/hydrogen bonds/electrical conductivity/mechanical properties分类
通用工业技术引用本文复制引用
REN Wenxing,WANG Yalong,CHEN Pengfei,LIANG Guang,LI Peihua,WANG Jian..具有优异力学性能和电导率的LA132@CMC-Na水系复合黏结剂制备及适配锂电硅基负极研究[J].储能科学与技术,2025,14(12):4493-4508,16.基金项目
山西省重点研发计划(202102040201008) （202102040201008）
2024年度山西省中央引导地方科技发展资金项目(YDZJSX2024D022). （YDZJSX2024D022）
