水系石墨负极浆料CMC和SBR配伍性研究OA
Compatibility research of CMC and SBR in aqueous graphite anode slurries
针对水系石墨负极浆料中CMC与 SBR 配伍性差导致浆料稳定性不足及电化学性能波动的问题,通过控制变量实验并进行工艺放大,系统比较了不同的CMC/SBR组合对浆料分散性、极片结构与电化学性能的影响.结果表明,大赛璐2200CMC与ZEON 451B 的组合(2200@451B-2)表现最佳,半电池首次放电比容量达 352.6 mAh/g,500次循环后容量保持率稳定在80％以上;软包全电池性能与PVDF体系相当,锂离子迁移速率最快、阻抗最低、SEI膜最致密,工艺放大后仍保持优异性能,证明该体系具有最优的配伍性与工业放大潜力.
To address the issues of insufficient slurry stability and fluctuating electrochemical perfor-mance caused by poor compatibility between CMC and SBR in aqueous graphite anode slurries,this study compared the effects of different CMC/SBR combinations on slurry dispersibility,electrode structure,and electrochemical performance through controlled experiments and process scale-up.The results show that the combination of Daicel 2200CMC and ZEON 451B(2200@451B-2)per-formed best,with a first-cycle specific capacity of 352.6 mAh/g in half-cell tests and capacity reten-tion remaining stable at over 80％after 500 cycles.In pouch full-cell tests,its performance was com-parable to that of the PVDF system,while exhibiting the fastest lithium-ion migration rate,lowest im-pedance,and densest SEI film.The system maintained excellent performance even after process scal-ing,demonstrating optimal compatibility and industrial scalability.
王燕华;黄素洁;胡新发;杨伟
广西安全工程职业技术学院 安全管理学院,广西 南宁 530100广州大学 化学化工学院,广东 广州 510006广州鹏辉能源科技股份有限公司,广东 广州 511483广州大学 化学化工学院,广东 广州 510006
信息技术与安全科学
锂离子电池石墨负极粘结剂羧甲基纤维素钠丁苯橡胶
lithium-ion batteriesgraphite anodebinderCMC-NaSBR
《电源技术》 2026 (8)
1446-1452,7
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