What is the calendar life of lithium-ion batteries?

The calendar life of a lithium-ion battery refers to the period of time from the date of production to the end of life, measured in years. This period includes different links such as shelving, aging, high and low temperature, cycling, and working condition simulation. The end of the battery life of a battery in a system often affects the work of the entire system, causing the overall system to fail. Therefore, the correct estimation of battery health and the study of calendar life can further guide the operation of the battery. The aging process of lithium-ion batteries is an extremely complicated process. The prediction of its life span not only requires relevant empirical values u200bu200band data accumulation of the battery, but also based on the aging mechanism of the battery to establish a model to predict more accurately. The calendar life prediction of lithium-ion batteries is of great significance to further guide battery maintenance, extend battery life, and reduce battery risk. The external factors of the calendar life of lithium-ion batteries include temperature, state of charge, charge-discharge rate, degree of cut-off voltage, and discharge window. The existence of unstable factors in the electrolyte at high temperatures makes the battery age faster, and low-temperature charging also It will adversely affect the degradation of battery performance. In addition, charging and discharging processes at different rates will also accelerate the aging of lithium-ion batteries. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.