Enhanced adhesion and electrochemical performance of Si anodes with gum arabic grafted poly(acrylic acid) as a water-soluble binder

doi:10.1002/pi.6263

GIEC OpenIR

	Enhanced adhesion and electrochemical performance of Si anodes with gum arabic grafted poly(acrylic acid) as a water-soluble binder
	He, Jiarong 1; Zhang, Lingzhi2 ; Zhong, Haoxiang 2
	2021-06-16
发表期刊	POLYMER INTERNATIONAL
ISSN	0959-8103
页码	12
通讯作者	He, Jiarong(jiarong.he@gdut.edu.cn) ; Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
摘要	Gum arabic grafted poly(acrylic acid) (GA-g-PAA) is synthesized as a mechanically robust water-soluble binder for silicon (Si) anodes in lithium-ion batteries by graft polymerization of acrylic acid onto GA backbone via a free radical reaction. H-1 NMR and Fourier transform infrared spectroscopies and thermogravimetric analysis are systematically conducted to confirm the grafting polymerization process. GA-g-PAA with different grafting length of PAA shows enhanced adhesion strength and excellent flexibility after grafting. Optimal Si-GA-g-8PAA electrode displays better cyclic stability, higher Coulombic efficiency and superior rate properties compared with a Si electrode with linear PAA binder. The Si-GA-g-8PAA electrode exhibits a high electrical conductivity, low interfacial/charge transfer resistance and high lithium-ion diffusion coefficient. GA-g-8PAA binder with grafted structure not only can maintain the mechanical and electrical integrity of the electrode, facilitating favorable electrochemical kinetics, but also assists in preserving a stable solid electrolyte interphase on Si surface upon long-term cycling. Such a facile strategy for designing a novel grafted binder shows potential for practical application on high-capacity anode materials with large volume change. (c) 2021 Society of Industrial Chemistry.
关键词	graft polymerization gum arabic-graft-poly(acrylic acid) free radical reaction water-soluble binders Si anode Li-ion battery
DOI	10.1002/pi.6263
关键词[WOS]	HIGH-CAPACITY ANODE ; SILICON ANODES ; CARBOXYMETHYL CHITOSAN ; LIFEPO4 CATHODE ; BUFFERING VOIDS ; BATTERY ANODES ; LITHIUM ; COMPOSITE ; POLYACRYLATE ; CAPABILITY
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[22075288] ; National Natural Science Foundation of China[21573239] ; KC Wong Education Foundation, Science and Technology Project of Guangdong Province[2015B010135008] ; Natural Science Foundation of Guangdong Province[2015A030313721]
WOS研究方向	Polymer Science
项目资助者	National Natural Science Foundation of China ; KC Wong Education Foundation, Science and Technology Project of Guangdong Province ; Natural Science Foundation of Guangdong Province
WOS类目	Polymer Science
WOS记录号	WOS:000661961700001
出版者	WILEY
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/33350
专题	中国科学院广州能源研究所
通讯作者	He, Jiarong; Zhang, Lingzhi
作者单位	1.Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	He, Jiarong,Zhang, Lingzhi,Zhong, Haoxiang. Enhanced adhesion and electrochemical performance of Si anodes with gum arabic grafted poly(acrylic acid) as a water-soluble binder[J]. POLYMER INTERNATIONAL,2021:12.
APA	He, Jiarong,Zhang, Lingzhi,&Zhong, Haoxiang.(2021).Enhanced adhesion and electrochemical performance of Si anodes with gum arabic grafted poly(acrylic acid) as a water-soluble binder.POLYMER INTERNATIONAL,12.
MLA	He, Jiarong,et al."Enhanced adhesion and electrochemical performance of Si anodes with gum arabic grafted poly(acrylic acid) as a water-soluble binder".POLYMER INTERNATIONAL (2021):12.