A new universal aqueous conductive binder via esterification reinforced electrostatic/H-bonded self-assembly for high areal capacity and stable lithium-ion batteries
Energy and Environmental Science(2024)
摘要
Because of insufficient adhesivity and mechanical properties, conventional polymeric binders fail to accommodate immense volume changes and maintain interparticle connections upon the repeated charge/discharge processes, especially in high active material loading and thick electrodes. Here, a new water-soluble conductive binder (APA/CNT) composed of carboxylic carbon nanotubes interwoven in flexible membranes of the neutralising product of 6-amino-1-hexanol and commercial poly(acrylic acid) (PAA) is developed. The APA/CNT is expected to form robust conductive and elastic network by means of the esterification reinforced electrostatic/H-bonded self-assembly, in which the continuous conductive skeletons can segregate and grasp active nanoparticles by an efficient and robust "sheet-to-point" bonding mode, which endows the as-fabricated anode and cathode with extraordinary structural and interfacial stability, and enhanced electronic conductivity. The as-constructed Si/C anode exhibits superior cycling stability and a high rate performance even under a high mass loading of 15 mg cm(-2), and achieves a high areal capacity of 7.79 mA h cm(-2), far exceeding those of other binder-based Si/C anodes. Moreover, the as-fabricated full cell also displays enhanced electrochemical behaviour and cycling durability. This simple and easy strategy should give a valuable new way to design a cost-effective, universal yet environmentally friendly binder with dependable adhesiveness for high-performance devices.
更多查看译文
关键词
esterification reinforced electrostatic/h-bonded,self-assembly,lithium-ion
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要