What are the ambient temperature requirements for high-temperature lithium-ion batteries?

With the passage of time, the earth’s temperature has become higher and higher, and our technical specifications and requirements have become higher and higher, especially when some of the high-temperature environments or the use of lithium-ion batteries in summer vehicle-mounted company’s products will be right. A test of lithium-ion battery materials and design. In the recent years of making lithium-ion batteries, the important application areas of lithium batteries have become more and more colorful over time, such as waterproof and moisture-proof, explosion-proof, high temperature, low temperature, outer space, etc. Lithium battery experts are also actively experimenting and upgrading. High-temperature batteries are generally classified into five levels for use in environments of 100°C, 125°C, 150°C, 175°C, and 200°C and above. Generally speaking, lithium-ion batteries bear high temperature detection, such as 130 degrees, 150 degrees, 800 degrees, etc., but generally speaking, in normal daily life, they will not touch such high temperatures at all. Among all electrochemical systems, high-temperature lithium-ion batteries have the longest storage time and the highest working voltage, and the requirements for ambient temperature are also quite different. The use of lithium ion batteries for high temperature lithium ion batteries has the advantages of high energy density, small size, light weight, long life and wide operating temperature range. High temperature resistant lithium-ion battery.jpg 1. Li-ion batteries used at 150°C and 175°C must be specially designed; 2. Li-ion batteries used at a temperature lower than or equal to 100°C should not be specially designed. Generally, lithium-ion batteries on the market are properly designed. It can be used after improvement; 3. For lithium-ion batteries used at a temperature lower than or equal to 125°C, qualified products can be produced as long as appropriate adjustments and controls are made on the basis of conventional battery production processes; 4. Lithium batteries used at 180°C and 200°C Ion batteries, because the melting point of lithium is 180.5°C, are no longer suitable for negative electrodes. Such lithium-ion batteries must use lithium alloy as the negative electrode. Lithium-ion batteries may instantaneously discharge under special temperature, humidity, and poor contact conditions, resulting in a large amount of current, spontaneous combustion or explosion. Lithium-ion batteries are more and more widely used in people's lives, which makes its temperature environment a point of concern. Relatively speaking, lithium-ion batteries are more prone to safety problems in high-temperature environments. Therefore, it is necessary to test the high-temperature performance of the lithium-ion battery and compare it with the normal temperature test data. In order to ensure the service life and safety of high-temperature lithium-ion batteries, the battery pack of high-temperature lithium-ion batteries uses an advanced BMS battery protection management system to prevent damage due to overcharge, overdischarge, high temperature operation, low temperature charging, or short circuit , Even security issues. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the impact of electrolyte on battery performance?