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Vol.53, No.12, 926 ~ 931, 2015
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| Title |
| A Simple Method of Analyzing the Phase Transition Behavior of a Na-Sn Battery Using Energy-Dispersive X-Ray Spectroscopy |
| 변영운 Young Woon Byeon , 최용석 Yong Seok Choi , 서종현 Jong Hyun Seo , 허가현 Ka Hyun Hur , 안재평 Jae Pyoung Ahn , 이재철 Jae Chul Lee |
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| Abstract |
| Anode materials of the Na-Sn battery experience a series of phase transitions during charging and discharging. These phase transitions in many cases are accompanied by a large volume change in the electrode materials, which leads to pulverization, a major source of reducing the battery capacity. In contrast to the rich literature on the phase transition behaviors of the Li-Si battery, those of the Na-Sn battery are much less understood due to experimental difficulties in determining the chemical composition of the phases. In this study, we demonstrate a simple method of analyzing the composition of the reaction compounds of the Na-Sn battery electrodes using energy dispersive X-ray spectroscopy. |
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| Key Words |
| energy storage mateuals, diffusion bonding, phase transformation, focused ion beam, FIB, sodiation, Energy-dispersive x-Ray spechoscopy, EDS |
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