Polydopamine Wrapping Silicon Cross-linked with Polyacrylic Acid as High-Performance Anode for Lithium-Ion Batteries

ACS Applied Materials & Interfaces
Yitian BieWei Lu

Abstract

A robust silicon electrode for lithium-ion battery has been developed via prepolymerizing dopamine on silicon particle surface and then chemical binding with poly(acrylic acid) (PAA). In this favorable electrode, silicon nanoparticles are covered by a thin layer of polydopamine (PD) through firm hydrogen bonds between phenolic hydroxyl and hydroxyl, while the elastic polymer layer reacts with PAA binder to form three-dimensional cross-linked binding system. The Si@PD/PAA electrode exhibits more stable cycle performance than conventional electrodes. In the case of thick electrode, a capacity of 3.69 mA h cm(-2) and fairly good rechargeability for 80 cycles can be achieved.

References

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Citations

Nov 11, 2017·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Ziwei DengBo Peng
Mar 20, 2021·ACS Applied Materials & Interfaces·Jiwon JangJaseung Koo
Sep 25, 2017·ACS Applied Materials & Interfaces·You Kyeong JeongJang Wook Choi
Jul 6, 2019·ACS Applied Materials & Interfaces·Chul-Ho JungSeong-Hyeon Hong
Dec 3, 2020·ACS Applied Materials & Interfaces·Mary K Burdette-TrofimovGabriel M Veith
Nov 30, 2018·ACS Applied Materials & Interfaces·Sisi JiangZhengcheng Zhang

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