Why are lithium batteries 'afraid' of extreme environmental temperatures?

Why are lithium batteries afraid of extreme environmental temperatures? Lithium batteries are not only afraid of low temperature and high temperature, but also afraid of power. The working principle of lithium batteries should be discussed from the working principle of lithium batteries: the electrolyte inside the battery changes through chemical reactions, and the positive electrode and There is a potential difference between the negative electrodes, and thus a current occurs. If the working environment is bad, the lithium battery may have the following effects: 1. In a low temperature environment, the chemical reaction and the electrolyte move slowly, which affects the transfer speed of lithium ions between the positive electrode and the negative electrode, resulting in a decrease in the performance and service life of the lithium battery. 2. In a high temperature environment, many materials in lithium batteries (such as diaphragms, electrolytes, etc.) have low melting points and boiling points. At this time, some negative chemical reactions will occur inside the battery, which may easily cause the battery to catch fire and explode. 3. When the lithium battery is in a power-off state, continuous use may lead to excessive discharge, resulting in damage to the active material inside the battery, resulting in a decrease in battery performance and service life. Therefore, if we want to make lithium batteries have a longer service life, we usually use equipment with lithium batteries to ensure that the operating temperature is between 0 and 40°C. The service life of high-quality lithium batteries is about 2-3 years, but the non-durable performance of lithium batteries is very fast power consumption, and the charging time is reduced accordingly. In order to ensure the long-term use of the lithium battery, you should pay attention to protecting the lithium battery, such as a new battery. Generally, the first three recharges require 12 hours to activate the battery. You should also pay attention to charging at ordinary times. Many people have a blind spot. This idea is wrong. In order to protect the lithium battery, try to charge the remaining half of the battery. The life of electricity is generally 300-500 charging cycles. Assume that the power supplied by a complete discharge is 1Q. If the reduction of power after each charging cycle is not considered, within the service life of lithium, 300q-500q of power can be supplied or supplemented. We know that if you use 1/;2 every time, you can charge 600-1000 times; if you use 1/;3 every time, you can charge 900-1500 times. By the same token, if the battery is charged randomly, the number of times of charging will also change. No matter how you charge, you can always get 300q-500q of energy, which is a constant. Therefore, we can also understand that the life of a lithium battery is related to the total power of the battery, and has nothing to do with the amount of power. The impact of deep charge and shallow charge on the life of lithium batteries is the same. Therefore, some manufacturers advertise that a certain strong lithium battery can be charged more than 1500 times. This is pure consumer ignorance. In fact, shallow charging is more beneficial to lithium batteries. Only when the product's power module is calibrated as a lithium battery, deep charging is required. Therefore, the use of lithium battery products does not need to be constrained by the process, all for convenience, charging at any time, without worrying about the impact on life. 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: The correct use of lithium batteries for electric bicycles