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Investigation on xanthan gum as novel water soluble binder for LiFePO4 cathode in lithium-ion batteries
He, Jiarong1,2; Zhong, Haoxiang1; Wang, Jinglun1; Zhang, Lingzhi1
2017-08-15
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
卷号714页码:409-418
摘要Xanthan Gum (XG) is systematically investigated and employed as water soluble binder for LiFePO4 (LFP) cathode in Li-ion batteries. XG binder exhibits good thermal stability and processes abundant functional groups such as carboxyl and hydroxyl, displaying a better adhesion strength of 0.085 N cm(-1) than sodium carboxymethyl cellulose (CMC, 0.050 N cm(-1)), but inferior to polyvinylidene difluoride (PVDF, 0.170 N cm(-1)). The Rheology test reveals that the viscosity of LFP slurry prepared with XG binder is higher than that of PVDF, resulting in a better dispersion of LFP and carbon black particles. The electrochemical performances of LFP-XG electrode are investigated and compared with those of aqueous CMC and conventional PVDF binder. LFP-XG displays better cycle stability and rate performance than PVDF, comparable to CMC, which retains 55.3% capacity of C/5 at 5 C as compared to PVDF (34.8%) and CMC (57.8%). Cyclic voltammetry (CV) shows that LFP-XG has smaller redox polarization and faster lithium diffusion rate than PVDF while electrochemical impedance spectroscopy (EIS) measurement at specified intervals reveals its more favorable electrochemical kinetics than that with PVDF, similar to CMC, thus better rate capability. Scanning electron microscopy (SEM) displays that LFP-XG has a more homogenous distribution of LFP and conductive carbon black particles with XG before cycling and better maintains its structure integrity after 100 cycles than that of PVDF. Furthermore, LFP-XG is observed to process a high ionic conductivity supported by dQ/dV profiles. (C) 2017 Elsevier B.V. All rights reserved.
文章类型Article
关键词Xanthan Gum Water Soluble Binder Adhesion Strength Lifepo4 Lithium-ion Battery
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者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) ; Natural Science Foundation of Guangdong Province(2015A030313721) ; 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) ; Natural Science Foundation of Guangdong Province(2015A030313721)
DOI10.1016/j.jallcom.2017.04.238
研究领域[WOS]Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]PERFORMANCE SILICON ANODES ; POLYACRYLIC-ACID ; CARBOXYMETHYL CHITOSAN ; POLYMER BINDER ; ELECTROCHEMICAL PERFORMANCES ; CAPACITY ; ELECTRODES ; ADHESIVE ; DESIGN ; IMPROVEMENT
收录类别SCI
语种英语
资助者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) ; Natural Science Foundation of Guangdong Province(2015A030313721) ; 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) ; Natural Science Foundation of Guangdong Province(2015A030313721)
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000402208500052
引用统计
被引频次:6[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/344007/14151
专题中国科学院广州能源研究所
作者单位1.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
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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He, Jiarong,Zhong, Haoxiang,Wang, Jinglun,et al. Investigation on xanthan gum as novel water soluble binder for LiFePO4 cathode in lithium-ion batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,714:409-418.
APA He, Jiarong,Zhong, Haoxiang,Wang, Jinglun,&Zhang, Lingzhi.(2017).Investigation on xanthan gum as novel water soluble binder for LiFePO4 cathode in lithium-ion batteries.JOURNAL OF ALLOYS AND COMPOUNDS,714,409-418.
MLA He, Jiarong,et al."Investigation on xanthan gum as novel water soluble binder for LiFePO4 cathode in lithium-ion batteries".JOURNAL OF ALLOYS AND COMPOUNDS 714(2017):409-418.
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