材料科学
阳极
锂(药物)
化学工程
电极
石墨
热稳定性
水溶液
环境友好型
放热反应
制作
溶解度
复合材料
有机化学
化学
替代医学
病理
物理化学
内分泌学
工程类
生物
医学
生态学
作者
Tianyu Zhu,Tri Tran,Fang Chen,Dongye Liu,Subramanya P Herle,Jie Guan,G. Venu Gopal,Ajey M. Joshi,James T. Cushing,Andrew M. Minor,Gao Liu
标识
DOI:10.1016/j.jpowsour.2021.230889
摘要
Multifunctional binders hold great promise in advanced electrode designs for both fundamental research and practical utilization of lithium-ion batteries (LIBs). The reactions between Si/SiOx-dominated anodes with lithium are expected to be exothermic in principle, while the thermal tolerance along with the volume change makes high-temperature binders attractive for large scale roll-to-roll manufacturing. For instance, if a high temperature binder is also water soluble, it can be compatible with the current graphite-based anode manufacturing process. In this work, we present a water-soluble poly(amic acid)-based binder, which can withstand high temperature for industrial pre-lithiation process and effectively hold active materials together during repeated charge and discharge cycles. This lithium substituted poly(amic acid) binder (denoted as Li-Pa) can serve as a drop-in replacement for environmentally friendly electrode fabrication in large scale by providing aqueous solubility, exceptional thermal stability and mechanical flexibility.
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