| Title |
A Simple Method of Analyzing the Phase Transition Behavior of a Na-Sn Battery Using Energy-Dispersive X-Ray Spectroscopy |
| Authors |
변영운(Young Woon Byeon); 최용석(Yong Seok Choi); 서종현(Jong Hyun Seo); 허가현(Ka Hyun Hur); 안재평(Jae Pyoung Ahn); 이재철(Jae Chul Lee) |
| DOI |
https://doi.org/10.3365/KJMM.2015.53.12.926 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
energy storage mateuals; diffusion bonding; phase transformation; focused ion beam; FIB; sodiation; Energy-dispersive x-Ray spechoscopy; EDS |
| 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. |