EASY SYNTHESIS OFLi4Ti5O12/CMICROSPHERES CONTAINING NANOPARTICLES AS ANODE MATERIAL FOR HIGH-RATELi-ION BATTERIES

Xiaodong Zheng (), Lina Dong and Chenchu Dong
Additional contact information
Xiaodong Zheng: Clean Energy Research and Development Center, Department of Chemistry and Chemical Engineering, Binzhou University, Binzhou 256603, P. R. China
Lina Dong: Clean Energy Research and Development Center, Department of Chemistry and Chemical Engineering, Binzhou University, Binzhou 256603, P. R. China
Chenchu Dong: Clean Energy Research and Development Center, Department of Chemistry and Chemical Engineering, Binzhou University, Binzhou 256603, P. R. China

Surface Review and Letters (SRL), 2014, vol. 21, issue 02, 1-9

Abstract: A microsphericalLi4Ti5O12/Ccomposite composed of interconnected nanoparticles with BP-2000 carbon black as carbon source is synthesized for use as an anode material in high-power lithium-ion batteries. The composite is prepared through precursor pretreatment including pre-sintering, ball-milling, and spray-drying. The structure, size and surface morphology of the as-prepared particles are investigated by X-ray diffraction and scanning electron microscopy. Results show that the obtained material has a microspherical morphology consisting of nanosized prime particles with compact structure. The precursor pretreatment effectively reduced the agglomeration of the prime particles caused by high temperature sintering and led to a more uniform distribution of BP-2000 on the surface of prime particles generating highly efficient conductive network. The specific capacity of the electrode at 20 C rate is 131 mAh g-1and the loss of capacity is less than 2% after the 60 variation cycles (from 1 C to 20 C and back to 1 C). This excellent performance is attributed to the effective conductive network between the prime particles and the reduction of the lithium-ion diffusion pathway.

Keywords: Lithium-ion battery; anode; Li4Ti5O12/Ccomposite; high-rate (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X14500231
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:21:y:2014:i:02:n:s0218625x14500231

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X14500231

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().