Two factors affecting the performance and life of lithium-ion batteries

1. The self-discharge of lithium-ion batteries. It is well known that lithium-ion batteries have a limited life span, generally 300-500 times. In fact, the life of a lithium-ion battery is calculated from the moment it leaves the factory, not from the first use. Lithium-ion batteries are in a self-discharge process before use. The self-discharge of lithium-ion batteries is an unavoidable phenomenon for all lithium-ion batteries. The self-discharge of lithium-ion batteries is affected by the ambient temperature and humidity. High temperature and low temperature will accelerate the self-discharge of the battery. It is recommended to store the battery in a dry environment between 0°C and 20°C. Therefore, the life of a lithium-ion battery depends on the production date on its packaging. 2. The chemical decomposition of lithium-ion batteries The inside of lithium-ion batteries is a complex chemical reaction system, which is mainly composed of materials such as positive and negative electrodes, electrolyte and diaphragm. In addition to the main reaction of lithium ions, there are some other side reactions, such as the decomposition of electrolyte, the dissolution of active materials, and so on. Lithium-ion batteries that have been stored for a long time will be affected if they are in a balanced state. Under normal circumstances, do not mix the battery with metal objects, lest the metal objects touch the positive and negative electrodes of the battery, causing a short circuit, damaging the battery or even causing danger. Lithium-ion batteries should be stored in a ventilated and dry environment away from high temperature and fire sources to prevent high temperature and high humidity from affecting the performance of the lithium-ion battery and corroding the surface. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the indicators for safety testing of lithium-ion batteries