Investigation on electrochemical performance at the low temperature of LFP/C-P composite based on phosphorus doping carbon network
Cui, Xiaoling1,2; Tuo, Kuanyou1,2; Xie, Yingchun1,2; Li, Chunlei1,2; Zhao, Dongni1,2; Yang, Li1,2; Fu, Xiaolan1,2; Li, Shiyou1,2
2020-05-04
Source PublicationIONICS
ISSN0947-7047
AbstractLiFePO4 (LFP) has been recommended as a promising cathode material due to its excellent cycle performance and high safety. However, the poor performance of low temperatures restricts the development and application of LFP cathode. Herein, the electrochemical properties of the previously synthesized LFP/C-P composite with carbon coating and phosphorus doping are discussed in the low temperature. In the low-temperature environment of - 40 degrees C, the first discharge-specific capacity of the LFP/C-P composite cathode at 0.1 C can reach 82.7 mAh g(-1), while discharge-specific capacity of pristine commercial LFP is only 72.2 mAh g(-1). To further improve the electrochemical performance of LFP/C-P at low temperatures, different charging-discharging methods were compared. It is noted that prolonging the constant voltage charging time can further improve the electrochemical performance of the cell, which increases the discharge capacity of LFP/C-P to 85.8 mAh g(-1). The LFP/C-P composite cathode therefore not only ameliorates the poor electrochemical performance of LFP but provides a new way to broaden its application range.
KeywordLow temperature LFP C-P Phosphorus doped Carbon network Lithium-ion battery
DOI10.1007/s11581-020-03567-9
Indexed BySCI
Language英语
Funding ProjectMajor Science and Technology Projects in Gansu Province[17ZD2GC011] ; High-Value Patent Conversion Implementation project[18ZC1LA014] ; Transformation of Scientific and Technological Achievements of Gansu Institutions of Higher Education[2017D-04]
WOS Research AreaChemistry ; Electrochemistry ; Physics
WOS SubjectChemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS IDWOS:000530249400002
PublisherSPRINGER HEIDELBERG
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64118
Collection石油化工学院
马克思主义学院
Corresponding AuthorLi, Shiyou
Affiliation1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
2.Gansu Engn Lab Cathode Mat Lithium Ion Battery, Lanzhou 730050, Peoples R China
First Author AffilicationColl Petrochem Engn
Corresponding Author AffilicationColl Petrochem Engn
First Signature AffilicationColl Petrochem Engn
Recommended Citation
GB/T 7714
Cui, Xiaoling,Tuo, Kuanyou,Xie, Yingchun,et al. Investigation on electrochemical performance at the low temperature of LFP/C-P composite based on phosphorus doping carbon network[J]. IONICS,2020.
APA Cui, Xiaoling.,Tuo, Kuanyou.,Xie, Yingchun.,Li, Chunlei.,Zhao, Dongni.,...&Li, Shiyou.(2020).Investigation on electrochemical performance at the low temperature of LFP/C-P composite based on phosphorus doping carbon network.IONICS.
MLA Cui, Xiaoling,et al."Investigation on electrochemical performance at the low temperature of LFP/C-P composite based on phosphorus doping carbon network".IONICS (2020).
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