Improving the processability and cycling stability of nano-LiFePO4 cathode by using PVDF/TX binary binder

doi:10.1080/09276440.2019.1578574

	Improving the processability and cycling stability of nano-LiFePO4 cathode by using PVDF/TX binary binder
	Liu, Shuling; Zhong, Haoxiang; Zhang, Congcong; Yan, Xiaodan; Zhao, Xinyue; Zhang, Lingzhi
刊名	COMPOSITE INTERFACES
	2019-11-02
卷号	26 期号:11 页码:1013-1024
关键词	Terpene resin PVDF binary binder nano-LiFePO4 lithium-ion battery
ISSN号	0927-6440
DOI	10.1080/09276440.2019.1578574
通讯作者	Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要	In lithium-ion battery industry, the nanoscale electrode materials usually have difficulty to be dispersed well in the electrode slurry. The inferior processability thus results in deteriorated electrochemical performances of the cell. In this work, poly(vinylidene fluoride) (PVDF) and terpene resin (TX) as a binary binder are used to improve the dispersibility and cycling stability of nanoscale LiFePO4 (nano-LFP) cathode. The wettability, dispersibility, adhesion strength and electrochemical performance of nano-LFP cathode using PVDF/TX are measured and compared with that using only PVDF binder. Nano-LFP cathode using PVDF/TX binder (the optimal ratio of PVDF to TX is 97:3) exhibits better dispersibility and stronger adhesion strength than that of PVDF. In addition, nano-LFP cathode with PVDF/TX binder shows better cycling stability, rate capability, and electrochemical kinetics than that with PVDF, retaining 97.4% capacity after 100 cycles test at C/5 in room temperature and 93.4% capacity after 60 cycles test at C/2 in 55celcius, respectively. [GRAPHICS] .
资助项目	K.C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; Science & Technology Project of Guangdong Province[2014TX01N014/2015B010135008] ; Guangzhou Municipal Project for Science Technology[201509010018]
WOS关键词	WATER-SOLUBLE BINDER ; LITHIUM-ION BATTERY ; LIFEPO4 CATHODE ; ELECTROCHEMICAL PERFORMANCE ; CARBOXYMETHYL CHITOSAN ; ELECTRODES ; ANODES ; PARTICLES ; POLYMERS ; FLUORIDE
WOS研究方向	Materials Science
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000477727400005
资助机构	K.C. Wong Education Foundation ; National Natural Science Foundation of China ; Science & Technology Project of Guangdong Province ; Guangzhou Municipal Project for Science Technology
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25372]
专题	中国科学院广州能源研究所
通讯作者	Zhang, Lingzhi
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shuling,Zhong, Haoxiang,Zhang, Congcong,et al. Improving the processability and cycling stability of nano-LiFePO4 cathode by using PVDF/TX binary binder[J]. COMPOSITE INTERFACES,2019,26(11):1013-1024.
APA	Liu, Shuling,Zhong, Haoxiang,Zhang, Congcong,Yan, Xiaodan,Zhao, Xinyue,&Zhang, Lingzhi.(2019).Improving the processability and cycling stability of nano-LiFePO4 cathode by using PVDF/TX binary binder.COMPOSITE INTERFACES,26(11),1013-1024.
MLA	Liu, Shuling,et al."Improving the processability and cycling stability of nano-LiFePO4 cathode by using PVDF/TX binary binder".COMPOSITE INTERFACES 26.11(2019):1013-1024.