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Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization
Chen, Linjing1; Feng, Wangjun1,2; Pu, Zhongsheng1,2; Wang, Xuan1,2; Song, Changkun1
2019-10-26
Source PublicationIONICS
ISSN0947-7047
Volume25Issue:12Pages:5625-5632
AbstractA carbon-coated lithium iron phosphate (LiFePO4@C) cathode materials were synthesized by a sol-gel method assisted by biomineralization. Yeast acted as a template and biocarbon source. NH3 center dot H2O was used to adjust the pH in the preparation process, which effectively controlled the morphology. The LiFePO4@C synthesized at pH = 7 exhibited an optimal electrochemical performance, with a discharge capacity of 159.6 mAh/g at 0.1 C rate. Electrochemical impedance spectroscopy and cyclic voltammetry were applied to further analyze the impact of pH value. The optimized electrode also exhibited stable cycling characteristics. The improved electrochemical properties were ascribed to uniform spherical morphology and low electrochemical impedance. The biosynthetic sol-gel route can be desired to prepare LiFePO4@C cathode materials.
KeywordLFP@C Cathode materials Yeast Biomineralization Sol-gel method
DOI10.1007/s11581-019-03273-1
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Electrochemistry ; Physics
WOS SubjectChemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS IDWOS:000492558800001
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64295
Collection理学院
省部共建有色金属先进加工与再利用国家重点实验室
Corresponding AuthorFeng, Wangjun
Affiliation1.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationColl Sci
Corresponding Author AffilicationColl Sci;  State Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
First Signature AffilicationColl Sci
Recommended Citation
GB/T 7714
Chen, Linjing,Feng, Wangjun,Pu, Zhongsheng,et al. Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization[J]. IONICS,2019,25(12):5625-5632.
APA Chen, Linjing,Feng, Wangjun,Pu, Zhongsheng,Wang, Xuan,&Song, Changkun.(2019).Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization.IONICS,25(12),5625-5632.
MLA Chen, Linjing,et al."Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization".IONICS 25.12(2019):5625-5632.
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