The choice of binder can prodigiously affect the electrochemical performance of the silicon-based anode. Unfortunately, conventional binders with relatively weak intermolecular van der Waals forces have a weak buffering effect on the volume expansion of silicon-based anodes, which leads to electrode contact failure and substantial capacity decay during cycling. Herein, inspired by the spider web, a multifunctional cobweb-like complex binder (TA-PAA) with strong adhesion constructed of tapioca (TA) and polyacrylic acid (PAA) is designed and applied as a high efficiency binder for high capacity and long-term cycle performance SiO anode. Originating from high viscoelasticity, robust tensile, as well as mechanical strength and self-healing property (“four-in-one” effect), TA-PAA/SiO electrode accommodates volumetric stress and addresses electrode contact failure. The electrode delivers a brilliant rate performance (619.2 mA h g⁻¹ at 5 A g⁻¹) and long-term cycle performance (901.2 mA h g⁻¹ over 1200 cycles at 2 A g⁻¹).

粘合剂的选择会极大地影响硅基阳极的电化学性能。不幸的是，具有相对较弱分子间范德华力的传统粘合剂对硅基负极的体积膨胀具有较弱的缓冲作用，这会导致电极接触失败和循环过程中的大量容量衰减。在此，受蜘蛛网的启发，设计了一种由木薯粉（TA）和聚丙烯酸（PAA）构成的具有强粘附力的多功能蛛网状复合粘合剂（TA-PAA），并将其用作高容量和长寿命的高效粘合剂。长期循环性能 SiO 阳极。源于高粘弹性、强拉伸性、机械强度和自愈性（“四合一”效应），TA-PAA/SiO 电极可适应体积应力并解决电极接触故障问题。该电极具有出色的倍率性能（619.2 mA h g^-1在 5 A g ^-1）和长期循环性能（901.2 mA h g ^{-1 在 2 A g -1超过}1200 个循环）。