The chemical analysis of electrolytes and electrodes in batteries is of central importance in order to optimize their performance, efficiency and service life. Electrodes and electrolytes have a significant influence on the electrochemical processes within the battery, and their composition determines the energy density, cycle stability and safety of the battery.
analysis of electrolytes
The electrolyte serves as a conductive medium between the electrodes, allowing the flow of ions. Chemical analysis of electrolytes includes:
- Identification of components: The determination of the chemical composition of the electrolyte, especially the salts, solvents and additives.
- Purity and impurities: A high purity of the electrolyte is important because impurities can affect the life and stability of the battery.
- Ionic conductivity: The efficiency of the electrolyte is determined by its ability to transport ions. This property is often studied as a function of temperature and concentration.
analysis of the electrodes
Electrodes are usually made of active materials containing lithium, nickel, cobalt, manganese or other chemical elements, depending on the battery type. Chemical analysis of electrodes includes:
- Material characterization: Investigation of the composition and structure of the active materials in order to optimize their energy and power density.
- Aging and degradation mechanisms: Identification of changes in the electrode structure after charging cycles that lead to loss of capacity or performance.
- Surface analysis: Examination of the electrode surfaces for the formation of passive layers or deposits that can affect the charging and discharging process.
