title: Polydopamine Wrapping Silicon Cross-linked with Polyacrylic Acid as High-Performance Anode for Lithium-Ion Batteries.
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.
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, China.
authors.forename: Yitian
authors.initials: Y
authors.lastname: Bie
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, China.
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Liu
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, China.
authors.forename: Jiulin
authors.initials: J
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, China.
authors.forename: Yanna
authors.initials: Y
authors.lastname: Nuli
authors.affiliation: Department of Chemical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States.
authors.forename: Wei
authors.initials: W
authors.lastname: Lu
keywords: binder; dopamine; lithium-ion batteries; polyacrylic acid; silicon