A Simple Method of Analyzing the Phase Transition Behavior of a Na-Sn Battery Using Energy-Dispersive X-Ray Spectroscopy

作者：Byeon Young Woon; Choi Yong Seok; Seo Jong Hyun; Hur Ka Hyun; Ahn Jae Pyoung; Lee Jae Chul^*

来源：Journal of the Korean Institute of Metals and Materials, 2015, 53(12): 926-930.

DOI：10.3365/KJMM.2015.53.12:926

• energy storage mateuals
• diffusion bonding
• phase transformation
• focused ion beam (FIB)
• sodiation
• Energy-dispersive x-Ray spechoscopy (EDS)

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.

• 出版日期2015-12