Facile Solution Route to Synthesize Nanostructure Li4Ti5O12for High Rate Li-Ion Battery

Journal of Nanomaterials - Tập 2016 - Trang 1-7 - 2016
Mẫn Văn Trần1, Le Thanh Nguyen Huynh2, Thanh Thuy Nguyen3, Don‐Hyung Ha1, My Loan Phung Le1
1Department of Physical Chemistry, VNUHCM-University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
2Applied Physical Chemistry Laboratory, Faculty of Chemistry, VNUHCM-University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
3College of Science, Can Tho University, Ninh Kieu District, Can Tho City, Vietnam

Tóm tắt

High rate Li-ion batteries have been given great attention during the last decade as a power source for hybrid electric vehicles (HEVs, EVs, etc.) due to the highest energy and power density. These lithium batteries required a new design of material structure as well as innovative electrode materials. Among the promising candidates, spinel Li4Ti5O12has been proposed as a high rate anode to replace graphite anode because of high capacity and a negligible structure change during intercalation of lithium. In this work, we synthesized a spinel Li4Ti5O12in nanosize by a solution route using LiOH and Ti(OBu)4as precursor. An evaluation of structure and morphology by XRD and SEM exhibited pure spinel phase Li4Ti5O12and homogenous nanoparticles around 100 nm. In the charge-discharge test, nanospinel Li4Ti5O12presents excellent discharge capacity 160 mAh/g at rate C/10, as well as good specific capacities of 120, 110, and 100 mAh/g at high rates C, 5C and 10C, respectively.

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Journal of Nanomaterials

Tập 2016

1-7

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