Water-soluble binder PAALi with terpene resin emulsion as tackifier for LiFePO4 cathode

doi:10.1002/app.46132

	Water-soluble binder PAALi with terpene resin emulsion as tackifier for LiFePO4 cathode
	He, Jiarong 1,2; Zhong, Haoxiang 2; Zhang, Lingzhi 2
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2018-04-10
卷号	135 期号:14 页码:11
关键词	electrochemistry resins
ISSN号	0021-8995
DOI	10.1002/app.46132
通讯作者	Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要	Terpene resin (TS) emulsion has been adopted as a tackifier in lithium polyacrylate (PAALi) as water-soluble binder for LiFePO4 (LFP) cathode in Li-ion batteries. TS-PAALi composite binder with optimal ratio of 1:1 (denoted as TS1-PAALi1), shows improved flexibility and enhanced adhesion capability of 0.170 N/cm in comparison with 0.120 N/cm of PAALi after introducing TS as adhesion enhancing agent, which is comparable with that of nonaqueous poly(vinylidene difluoride) (PVDF, 0.171 N/cm) and much better than aqueous sodium carboxymethyl cellulose (CMC, 0.045 N/cm). The electrochemical characteristics of LFP with TS1-PAALi1 have been investigated and further compared with those of PAALi, CMC, and PVDF. LFP with TS1-PAALi1 exhibits superior cycling stability and rate capability, maintaining 65.57% capacity of 0.2 C at 5 C rate in comparison with 60.73%, 57.83%, and 34.79% for PAALi, CMC, and PVDF, respectively. In addition, LFP with TS1-PAALi1 displays excellent cycling performance almost without any capacity fading at 60 degrees C after 45 cycles at 1 C, much better than that of PAALi, CMC, and PVDF. Cyclic voltammetry and electrochemical impedance spectroscopy reveal that LFP with TS1-PAALi1 has a smaller redox potential difference, lower electrode polarization, and a more favorable electrochemical kinetics (fast lithium diffusion rate) than that of PAALi, CMC, and PVDF, thus more superior electrochemical performances. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46132.
资助项目	K.C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; Guangdong Province for High-Level Talents[2014TX01N014] ; Science & Technology Project of Guangdong Province[2015B010135008/2016B010114003] ; Guangzhou Municipal Project for Science Technology[201509010018] ; Natural Science Foundation of Guangdong Province[2015A030313721]
WOS关键词	LITHIUM-ION BATTERIES ; CARBOXYMETHYL CHITOSAN ; POLYACRYLIC-ACID ; SILICON ANODES ; ELECTROCHEMICAL PERFORMANCES ; POLYMERIC BINDERS ; ELECTRODES ; CAPACITY ; IMPROVEMENT ; DESIGN
WOS研究方向	Polymer Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000418868800036
资助机构	K.C. Wong Education Foundation ; National Natural Science Foundation of China ; Guangdong Province for High-Level Talents ; Science & Technology Project of Guangdong Province ; Guangzhou Municipal Project for Science Technology ; Natural Science Foundation of Guangdong Province
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/22825]
专题	中国科学院广州能源研究所
通讯作者	Zhang, Lingzhi
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, 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,Zhong, Haoxiang,Zhang, Lingzhi. Water-soluble binder PAALi with terpene resin emulsion as tackifier for LiFePO4 cathode[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2018,135(14):11.
APA	He, Jiarong,Zhong, Haoxiang,&Zhang, Lingzhi.(2018).Water-soluble binder PAALi with terpene resin emulsion as tackifier for LiFePO4 cathode.JOURNAL OF APPLIED POLYMER SCIENCE,135(14),11.
MLA	He, Jiarong,et al."Water-soluble binder PAALi with terpene resin emulsion as tackifier for LiFePO4 cathode".JOURNAL OF APPLIED POLYMER SCIENCE 135.14(2018):11.