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
| Autor: | Han-Wei Hsieh, Yu-Fang Lin, Chih-Hao Lee, Chih-Wei Hu, Ching-Yu Chiang, Wu-Ching Chou, Vanessa K. Peterson, Hui-Chia Su, Bor-Yuan Shew, Neeraj Sharma |
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| Rok vydání: | 2013 |
| Předmět: |
Battery (electricity)
Materials science Lithium vanadium phosphate battery Renewable Energy Sustainability and the Environment Lithium iron phosphate Energy Engineering and Power Technology Cathode Lithium-ion battery Anode law.invention chemistry.chemical_compound chemistry Structural change Chemical engineering law Electrode Electrical and Electronic Engineering Physical and Theoretical Chemistry Nuclear chemistry |
| Zdroj: | Journal of Power Sources. 244:158-163 |
| ISSN: | 0378-7753 |
| Popis: | 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 LiFePO 4 cathode, does not exhibit a delayed phase transition between LiFePO 4 (triphylite) and FePO 4 (heterosite) suggesting that the delayed phase transition can be suppressed through the use of vanadium-added LiFePO 4 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 (Li x C 6 where 0 x ≦ 1) and correlate this to battery voltage. |
| Databáze: | OpenAIRE |
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