QIBEBT-IR
Analysis of the relationship between vertical imparity distribution of conductive additive and electrochemical behaviors in lithium ion batteries
Liu, Tao1,2; Li, Xichao1; Sun, Shimei1; Sun, Xiaolin1; Cao, Fengting1; Ohsaka, Takeo3; Wu, Jianfei1
2018-04-10
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume269Pages:422-428
AbstractIn this work, double layered LiFePO4 materials with different content of conductive carbon black are proposed for evaluating systematically the influence of imparity distribution of conductive additive on the electrochemical behaviors of cathode material for lithium ion batteries. Their polarization effects and electrochemical performances were investigated and compared in detail. It was found that there exists a simple empirical rule correlating the distribution of the conductive additive and the depolarization effect under the premise that the total content of the conductive additive is kept constant. The electrochemical performance of LiFePO4/C electrode tends to get better with increasing the conductive additive loading in the lower layer. This can be attributed to that the more conductive additive content in the lower layer could provide more available paths for electronic transmission, and markedly decrease the interfacial impedance between LiFePO4/C cathode material and current collector, thus improving the ability of collecting electron and maintaining a reliable electron transport system, especially under high current densities. This finding can enlighten us to design a more rational optimization of the electrode by controlling the distribution of conductive additive in the cathode material for high performance lithium ion batteries. (c) 2018 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordDistribution Of Conductive Additive Interfacial Impedances Depolarization Effect Electrochemical Performance Lithium Ion Batteries
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.electacta.2018.03.038
WOS KeywordLIFEPO4 CATHODE MATERIALS ; CURRENT COLLECTOR ; COMPOSITE CATHODE ; ACETYLENE BLACK ; PERFORMANCE ; CARBON ; GRAPHENE ; CAPACITY ; POLYMER ; ANODE
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
Funding OrganizationNational Natural Science Foundation of China(21673267) ; Shandong Provincial Natural Science Foundation(ZR2015QZ01) ; Chinese Academy of Sciences ; Qingdao Postdoctoral Application Research Project ; Qingdao Industrial Energy Storage Technology Institute
WOS SubjectElectrochemistry
WOS IDWOS:000428806700050
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/10822
Collection中国科学院青岛生物能源与过程研究所
Corresponding AuthorWu, Jianfei
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Kanagawa Univ, Res Inst Engn, Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan
Recommended Citation
GB/T 7714
Liu, Tao,Li, Xichao,Sun, Shimei,et al. Analysis of the relationship between vertical imparity distribution of conductive additive and electrochemical behaviors in lithium ion batteries[J]. ELECTROCHIMICA ACTA,2018,269:422-428.
APA Liu, Tao.,Li, Xichao.,Sun, Shimei.,Sun, Xiaolin.,Cao, Fengting.,...&Wu, Jianfei.(2018).Analysis of the relationship between vertical imparity distribution of conductive additive and electrochemical behaviors in lithium ion batteries.ELECTROCHIMICA ACTA,269,422-428.
MLA Liu, Tao,et al."Analysis of the relationship between vertical imparity distribution of conductive additive and electrochemical behaviors in lithium ion batteries".ELECTROCHIMICA ACTA 269(2018):422-428.
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