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Carboxymethyl chitosan/conducting polymer as water-soluble composite binder for LiFePO4 cathode in lithium ion batteries
Zhong, Haoxiang1; He, Aiqin2; Lu, Jidian2; Sun, Minghao1,3; He, Jiarong1,3; Zhang, Lingzhi1
2016-12-30
Source PublicationJOURNAL OF POWER SOURCES
Volume336Pages:107-114
AbstractA water-soluble conductive composite binder consisting of carboxymethyl chitosan (CCTS) as a binder and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as a conduction-promoting agent is reported for the LiFePO4 (LFP) cathode in Li-ion batteries. The introduction of conductive PEDOT:PSS as a conductive composite binder facilitates the formation of homogeneous and continuous conducting bridges throughout the electrode and raises the compaction density of the electrode sheet by decreasing the amounts of the commonly used conducting agent of acetylene black. The optimized replacement ratios of acetylene black with PEDOT:PSS (acetylene black/PEDOT:PSS = 1:1, by weight) are obtained by measuring electrical conductivity, peel strength and compaction density of the electrode sheets. The LFP half-cell with the optimized conductive binder exhibits better cycling and rate performance and more favorable electrochemical kinetics than that using only acetylene black conducting agent. The pilot application of PEDOT:PSS/CCTS binder in 10 Ah CCTS-LFP prismatic cell exhibits a comparable cycling performance, retaining 89.7% of capacity at 1 C/2 C (charge/discharge) rate as compared with 90% for commercial PVDF-LFP over 1000 cycles, and better rate capability than that of commercial PVDF-LFP, retaining 98% capacity of I C at 7 C rate as compared with 95.4% for PVDF-LFP. (C) 2016 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordConductive Water Soluble Binder Carboxymethyl Chitosan Cathode Pilot Application Lithium-ion Battery
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jpowsour.2016.10.041
WOS Subject ExtendedChemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS KeywordNEGATIVE ELECTRODES ; CHITOSAN ; PERFORMANCE ; POLYACRYLATE ; CAPABILITY ; ANODES ; LAYER
Indexed BySCI
Language英语
Funding OrganizationK.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 SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000389086900013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14001
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
2.Guangzhou Lithium Force Energy Technol Co Ltd, 11 Kai Yuan Blvd, Guangzhou 510730, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhong, Haoxiang,He, Aiqin,Lu, Jidian,et al. Carboxymethyl chitosan/conducting polymer as water-soluble composite binder for LiFePO4 cathode in lithium ion batteries[J]. JOURNAL OF POWER SOURCES,2016,336:107-114.
APA Zhong, Haoxiang,He, Aiqin,Lu, Jidian,Sun, Minghao,He, Jiarong,&Zhang, Lingzhi.(2016).Carboxymethyl chitosan/conducting polymer as water-soluble composite binder for LiFePO4 cathode in lithium ion batteries.JOURNAL OF POWER SOURCES,336,107-114.
MLA Zhong, Haoxiang,et al."Carboxymethyl chitosan/conducting polymer as water-soluble composite binder for LiFePO4 cathode in lithium ion batteries".JOURNAL OF POWER SOURCES 336(2016):107-114.
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