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Superior lithium storage properties of β-FeOOH

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Superior lithium storage properties of β-FeOOH
นักวิจัย : Yu, Linghui , Xi, Shibo , Wei, Chao , Zhang, Wenyu , Du, Yonghua , Yan, Qingyu , Xu, Zhichuan
คำค้น : DRNTU::Engineering::Materials::Energy materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Yu, L., Xi, S., Wei, C., Zhang, W., Du, Y., Yan, Q., et al. (2014). Superior lithium storage properties of β-FeOOH. Advanced energy materials, in press. , 1614-6832 , http://hdl.handle.net/10220/24613 , http://dx.doi.org/10.1002/aenm.201401517
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Advanced energy materials
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Several crystal forms of FeOOH are recently reported to be highly promising for lithium storage due to their high capacity, low cost, and environmental friendliness. In particular, β-FeOOH has shown a capacity of ≈1000 mAh g−1, which is comparable to other promising iron-based anodes, such as Fe2O3 and Fe3O4. However, its storage mechanisms are unclear and the potential for further improvement remains unexplored. Here, it is shown that this material can have a very high reversible capacity of ≈1400 mAh g−1, which is 20%–40% higher than Fe2O3 and Fe3O4. Such a high capacity is delivered from a series of reactions including intercalation and conversion reactions, formation/deformation of solid-state electrolyte interface layers and interfacial storage. The mechanisms are studied by a combination of electrochemical and X-ray absorption near edge spectroscopic approaches. Moreover, very long cycling performance, that is, after even more than 3000 cycles the material still has a significant capacity of more than 800 mAh g−1, is obtained by a simple electrode design involving introducing a rigid support into porous electrodes. Such long cycling performance is for the first time achieved for high-capacity materials based on conversion reactions.

บรรณานุกรม :
Yu, Linghui , Xi, Shibo , Wei, Chao , Zhang, Wenyu , Du, Yonghua , Yan, Qingyu , Xu, Zhichuan . (2557). Superior lithium storage properties of β-FeOOH.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yu, Linghui , Xi, Shibo , Wei, Chao , Zhang, Wenyu , Du, Yonghua , Yan, Qingyu , Xu, Zhichuan . 2557. "Superior lithium storage properties of β-FeOOH".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yu, Linghui , Xi, Shibo , Wei, Chao , Zhang, Wenyu , Du, Yonghua , Yan, Qingyu , Xu, Zhichuan . "Superior lithium storage properties of β-FeOOH."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Yu, Linghui , Xi, Shibo , Wei, Chao , Zhang, Wenyu , Du, Yonghua , Yan, Qingyu , Xu, Zhichuan . Superior lithium storage properties of β-FeOOH. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.