標題: | Real-time investigation of the structural evolution of electrodes in a commercial lithium-ion battery containing a V-added LiFePO4 cathode using in-situ neutron powder diffraction |
作者: | Hu, Chih-Wei Sharma, Neeraj Chiang, Ching-Yu Su, Hui-Chia Peterson, Vanessa K. Hsieh, Han-Wei Lin, Yu-Fang Chou, Wu-Ching Shew, Bor-Yuan Lee, Chih-Hao 電子物理學系 Department of Electrophysics |
關鍵字: | Lithium-ion battery;Vanadium-addition;Lithium iron phosphate;Neutron powder diffraction;In-situ experimentation |
公開日期: | 15-十二月-2013 |
摘要: | In-situ neutron powder diffraction was employed to investigate the structural evolution of the electrode materials in a commercial lithium-ion battery used for electric buses in Taiwan. The battery, containing a vanadium-added LiFePO4 cathode, does not exhibit a delayed phase transition between LiFePO4 (triphylite) and FePO4 (heterosite) suggesting that the delayed phase transition can be suppressed through the use of vanadium-added LiFePO4 cathodes, which also enhances the capacity and prolongs the cycle life of these batteries. Furthermore, we characterize the readily reversible structural change of the anode (LixC6 where 0 < x <= 1) and correlate this to battery voltage. (C) 2013 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.jpowsour.2013.02.074 http://hdl.handle.net/11536/22668 |
ISSN: | 0378-7753 |
DOI: | 10.1016/j.jpowsour.2013.02.074 |
期刊: | JOURNAL OF POWER SOURCES |
Volume: | 244 |
Issue: | |
起始頁: | 158 |
結束頁: | 163 |
顯示於類別: | 期刊論文 |