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Self-discharge kinetics behaviors of the Li-Si anode for thermal batteries: Modeling, quantifying and fitting analysis by Xicheng Zhang; Yixiu Cui; Peng Yang; Ke He; Xu Zhang; Yong Cao; Chao Wang; Xinlu Li is a Engineering article available to read on EtoBox.
What is Self-discharge kinetics behaviors of the Li-Si anode for thermal batteries: Modeling, quantifying and fitting analysis about?
Self-discharge has significant influence on the service life of thermal batteries. The kinetics process of self-discharge depends on both the structure evolution and intrinsic property of electrodes. Herein, the kinetics model to quantify the self-discharge degree of the Li-Si anode is constructed according to the structure of thermal cells. Typical operation and preparation parameters, i.e. temperature, discharge current and electrode thickness, are evaluated based on the specially designed combined-discharge scheme. Then the effective diffusion coefficients (D eff) of soluble lithium (Li0) that are affected by the three variables are calculated and fitted. The calculation results consequently confirm self-discharge process of the Li-Si anode can be described by the derived equations exactly, and then the process is demonstrated to be diffusion-controlled. Further, D eff increase at the higher temperature and larger discharge current, while decrease with the increased electrode thickness, which is analyzed by scanning electron microscope and X-ray microcomputed tomography. The entire effects on D eff can be coupled in one fitting expression based on Arrhenius equation, and the app
Who reads Self-discharge kinetics behaviors of the Li-Si anode for thermal batteries: Modeling, quantifying and fitting analysis?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Xicheng Zhang; Yixiu Cui; Peng Yang; Ke He; Xu Zhang; Yong Cao; Chao Wang; Xinlu Li
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)