|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XVII
||Predication of the Intrinsic Properties of Multi-component Electrodes for Li-ion Batteries from Aspect of Thermodynamics
||Dajian Li, Weibin Zhang, Thomass Ludwig Reichmann, Damian Marlon Cupid
|On-Site Speaker (Planned)
Li-ion batteries are essential for next generation electronic vehicles and energy storage for smart grids. However, traditional trial and error investigation process has become very time-consuming for multi-component electrodes because of enormous state combinations. During battery operations, phase components of electrodes may go through phase transformations or stay unchanged but with varying compositions. Therefore, knowledge of phase diagrams in combination with thermodynamic properties of individual phases is essential for Li-ion batteries.
Calphad (Calculation of Phase Diagram) approach has been applied in current work. The Li-Sn system and the Li1+xMn2-xO4 spinel were selected as examples of anodes and cathodes, respectively. The importance of physical background of the thermodynamic modeling was stressed. Battery properties such as open circuit voltage and energy capacity were calculated. Moreover, the Li-Sn system was combined with the Li-Si dataset to illustrate the behaviour of a mixed-conductor electrode. Doping of the Li1+xMn2-xO4 was discussed as multi-component electrodes.
||Planned: Supplemental Proceedings volume