Chitosan-grafted-polyaniline copolymer as an electrically conductive and mechanically stable binder for high-performance Si anodes in Li-ion batteries

被引：73

作者：

Rajeev, K. K. ^{[1
,2
]}

Kim, Eunsoo ^{[1
,2
]}

Nam, Jaebin ^{[1
,2
]}

Lee, Suhyun ^{[3
]}

Mun, Junyoung ^{[3
]}

Kim, Tae-Hyun ^{[1
,2
]}

机构：

[1] Incheon Natl Univ, Dept Chem, Organ Mat Synth Lab, Incheon, South Korea

[2] Incheon Natl Univ, Res Inst Basic Sci, 119 Acad Ro, Incheon 406772, South Korea

[3] Incheon Natl Univ, Dept Energy & Chem Engn, 119 Acad Ro, Incheon 406772, South Korea

来源：

ELECTROCHIMICA ACTA | 2020年 / 333卷 / 333期

基金：

新加坡国家研究基金会;

关键词：

Polymer binder; Si anode; Electrical conductivity; Mechanical property; Chitosan-grafted-poly(aniline); CROSS-LINKED CHITOSAN; SILICON ANODES; HIGH-ENERGY; POLYMERIC BINDERS; RATIONAL DESIGN; ELECTRODES; ACID);

D O I：

10.1016/j.electacta.2019.135532

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We developed chitosan-grafted-polyaniline copolymers (CS-g-PANIs) as new water-soluble electrically conductive and mechanically robust polymer binder materials for silicon anodes. Unlike most other electrically conductive polymer binders, the CS-g-PANIs were easily prepared by grafting electrically conductive PANI onto the chitosan, which adheres well to Si. Various CS-g-PANI copolymers were prepared with different grafting degrees of PANI to investigate the effect of PANI on the electrochemical and physical properties of the prepared electrodes. The copolymer whose composition was 50% PANI and 50% chitosan showed the best cell performance, due to the well-balanced electrical conductivity and mechanical properties. It exhibited a specific capacity of 1091 mAh g(-1) at the 200th cycle with 99.4% Coulombic efficiency. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：10