Bio-Synthesis of LiFePO4/C composites for lithium ion battery

doi:10.20964/2017.10.60

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Bio-Synthesis of LiFePO4/C composites for lithium ion battery
	Cao, Yue 1,2; Feng, Wangjun 1,2; Su, Wenxiao 2
刊名	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
	2017-10
卷号	12 期号:10 页码:9084-9093
关键词	LiFePO4/C composites yeast cells biocarbon electrochemical performance
ISSN号	1452-3981
DOI	10.20964/2017.10.60
英文摘要	According to the biomineralization assembly concept, high-performance LiFePO4/C composites are successfully obtained via an effective and controllable biomimetic sol-gel method. The key step of this method is using the Baker's yeast cells as structural templates and biocarbon sources. The phase identification of four different LiFePO4/C composites are tested by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which are used to research the morphology, size and structure of LiFePO4/C composites. And the electrochemical performance tests demonstrate when the amount of Baker's yeast cells are 20g L-1, LiFePO4/C composites exhibit the best discharge specific capacity, 151.6mAh g(-1) at 0.1C, which is higher than the pristine LiFePO4 electrode (116.8mAh g(-1) at 0.1C) without Baker's yeast cells. After 50 cycles at 0.1C, the discharge capacity maintains 147.8mAh g(-1) (97.5% of its initial value). Also, the sample LiFePO4/C with 20 g L-1 yeast cells shows a couple of redox peaks between 3.34V to 3.53V which is narrower and incisive, and the resistance is much smaller than other samples. Therefore the LiFePO4/C composites synthesized by yeast cells are an ideal type of cathode-active material for lithium ion batteries.
资助项目	National Natural Science Foundation of China[11264023] ; Natural Science Foundation of Gansu Province, China[1210ZTC035]
WOS研究方向	Electrochemistry
语种	英语
出版者	ESG
WOS记录号	WOS:000414422900021
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33071]
专题	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
通讯作者	Feng, Wangjun
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050OF, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Cao, Yue,Feng, Wangjun,Su, Wenxiao. Bio-Synthesis of LiFePO4/C composites for lithium ion battery[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2017,12(10):9084-9093.
APA	Cao, Yue,Feng, Wangjun,&Su, Wenxiao.(2017).Bio-Synthesis of LiFePO4/C composites for lithium ion battery.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,12(10),9084-9093.
MLA	Cao, Yue,et al."Bio-Synthesis of LiFePO4/C composites for lithium ion battery".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 12.10(2017):9084-9093.