Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (11): 3688-3698.doi: 10.19799/j.cnki.2095-4239.2022.0344

• Energy Storage Test: Methods and Evaluation • Previous Articles     Next Articles

Research progress in the conductivity model of lithium battery electrolytes

Sifei ZHOU(), Jun LI(), Xiaofei WANG, Daoming ZHANG, Haoliang XUE   

  1. SINOPEC Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, China
  • Received:2022-06-21 Revised:2022-07-06 Online:2022-11-05 Published:2022-11-09
  • Contact: Jun LI E-mail:sz14f2601@163.com;lijun.sshy@sinopec.com

Abstract:

A review of the research progress of the lithium battery electrolyte-conductivity model recently is described from the classic solution model, statistical thermodynamic model, semi-empirical model, and mathematical-statistical method. The statistical thermodynamics theory has gradually replaced the classical solution theory in studies on the transport mechanism of lithium battery electrolytes. To better understand the microstructure and interaction between microscopic particles, a high-level thermodynamic theoretical model is created from the microscopic properties of molecules and ions. The prediction and optimization of the conductivity of lithium battery electrolyte changed from the conventional semi-empirical model to a mathematical, statistical method to obtain ideal test results and draw scientific conclusions with a small-test scale, short test cycle, and low test cost.

Key words: lithium battery electrolyte, conductivity model, transport mechanism, prediction

CLC Number: