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Features of the new low temperature resistant lithium battery at minus 60℃

by:Vglory      2021-04-12
A new type of -60°C low-temperature lithium battery. Engineers at the University of California, San Diego, have developed a low-temperature lithium iron phosphate battery that can operate at room temperature at a temperature of -60°C. At present, the types of low-temperature batteries can be important in the market including low-temperature lithium iron phosphate batteries and polymer low-temperature lithium batteries. Both low-temperature battery technologies are relatively mature. Lithium iron phosphate battery The lithium battery can work at temperatures as low as -60 degrees Celsius. Compared with the current -20 degrees Celsius when the lithium battery stops working, it has excellent performance. The new electrolyte can also make electrochemical capacitors work at temperatures as low as -80 degrees Celsius, while the current temperature limit is -40 degrees Celsius. Although the technology can work at extremely low temperatures, it can still maintain high performance at room temperature. New electrolyte chemicals can also increase energy density and improve the safety of lithium batteries and electrochemical capacitors. The batteries and electrochemical capacitors developed by the researchers are particularly resistant to cold because their electrolytes are made of liquefied gas solvents. Compared with standard liquid electrolytes, liquefied gas solvents are more resistant to freezing under moderate pressure. The new type of lithium battery electrolyte is made of liquid fluoromethane gas. Using liquefied difluoromethane as raw material, an electrolyte for electrolytic capacitors was prepared. Deep decarbonization depends on breakthroughs in energy storage technology. Better batteries are needed to make more cost-effective electric vehicles. Once the temperature range of batteries, supercapacitors and their hybrid products is expanded, these electrochemical energy storage technologies can be adopted by more emerging markets. This is a very good project. The success of this unconventional approach may inspire more scientists and researchers to explore unknown areas in this field. Shirley Babu, professor of nanoengineering, Jacobs School of Engineering, University of California, San Diego (Shirley Meng) said. Low-temperature lithium iron phosphate battery features: superposition technology, low internal resistance; excellent low-temperature performance: discharge at 0.5c-40 ℃, discharge capacity is greater than 60% of the initial capacity; -35 ℃ 0.3C discharge, discharge capacity exceeds 70 of the initial capacity %; Operating temperature range: -40℃~55℃; can be charged at -20℃; lithium iron phosphate chemical industry, high safety, long cycle life; flexible size, the size and shape of the battery can be individually designed according to customer requirements. Discharge at different C rates at room temperature 25°C. From 1c to 3c, we can supply almost 100% discharge capacity; even a 10c discharge battery can supply 85% discharge capacity and maintain high discharge efficiency. The 300-cycle test curve of the low-temperature lithium iron phosphate battery discharged from Grepow-20℃-0.2℃ still has a capacity retention rate of more than 93%. The discharge curve of Grepow low-temperature lithium iron phosphate battery at different temperatures can be dispersed from -40°C to 55°C. According to the 25℃0.5c discharge cycle test curve, after 2500 cycles, the capacity retention rate of Grepow low-temperature lithium iron phosphate battery is still above 80%. Features of low-temperature lithium battery: Grepow special-shaped low-temperature battery can effectively improve the discharge performance of the battery in a low-temperature environment, reduce the internal resistance of the battery, and achieve the effect of high-speed discharge. Therefore, it has longer battery life and more power. At low temperature and 0.2C discharge at -30℃, Grepow's low-temperature battery discharge capacity is still more than 80%. This is also one of Grepow's core technologies. It has the following advantages: Low temperature discharge performance is the lowest, 0.2C discharge at -40℃ ℃, efficiency above 60%; at -30℃, discharge 0.2℃, discharge capacity can reach 80%; working temperature range: -40C to 50C; excellent low temperature cycle performance, -30℃ charge and discharge 0.2℃, after 300 cycles The capacity is maintained above 85%; high safety performance, UL/CE/UN certification; flexible size, size and shape design can be customized according to customer requirements; with capacity for production capacity, good battery consistency; large current can occur at -40°C Keep large capacity under. Under the working environment of -40℃, it can still maintain excellent performance. 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: How to calculate the charging time of Ni-MH batteries
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