Introduction:
At present, there is a common problem in the new energy vehicle and lithium battery energy storage markets, and that is the fear of cold. For no other reason than in low-temperature environments, the performance of lithium batteries is severely attenuated, showing significant energy and power losses, charging difficulties, etc., or even failing to work properly.
Where there are pain points, there are also huge development opportunities. Xingdong Lithium Battery's unique low-temperature battery is designed for the "cold". On August 8, at the "2024 China Energy Storage Industry Ecological Conference" forum on the day of the 2024 World Battery and Energy Storage Industry Expo, Xingdong Lithium Battery launched four high-performance low-temperature resistant batteries with a maximum charge and discharge efficiency of more than 97%, which made up for the low-temperature shortcomings of lithium iron phosphate batteries and ensured that lithium iron phosphate batteries can also operate stably and efficiently under cold weather conditions.
How to overcome the low-temperature of lithium battery ?
"Under low temperature conditions, the chemical reaction rate inside the battery slows down and the movement speed of ions in the electrolyte decreases, which affects the lithium battery's charge and discharge efficiency. In addition, low temperatures may also cause changes in the material structure inside the battery, thereby affecting the battery's performance and life." Li Jia, president of Xingdong Lithium Battery's international business, said that to solve the problem of low-temperature performance of batteries, the key is to develop materials with low-temperature tolerance.
Starting from materials and other aspects, Xingdong Lithium Battery has overcome difficulties and successfully developed a number of patented technologies. It has also successfully mass-produced 4 low-temperature lithium batteries that can be charged and discharged in low-temperature environments of -20℃, -25℃, -30℃, and -35℃, with a capacity range of 206Ah to 314Ah, and corresponding charge and discharge efficiencies greater than 97%, 95%, 95%, and 90%, respectively, leading the industry.
If we take a closer look at the secret, we will find that the golden combination of Xingdong lithium battery "4+N" played an indispensable role. 4 refers to the four core technologies, and N refers to the multiple patented technologies used in combination:
1. Through the compounding of carbon nanotubes and graphene, the lithium battery impedance is greatly reduced, the internal resistance is ≤0.25mΩ, the rate performance is greatly improved, and it can support 15C instantaneous discharge current;
2. The patented diaphragm coating technology is adopted to make the pole piece highly bonded during operation, effectively improving the battery safety and cycle performance;
3. The patented in-situ gel electrolyte is adopted, and the initiator and coagulant matching the lithium iron phosphate battery are added to make the battery more resistant to low temperature, and the battery operating temperature range can reach -35℃～60℃;
4. The stacking process is adopted, compared with the traditional winding process, the internal resistance is reduced by 30%, with better structural stability, higher safety, longer cycle life, and energy density ≥180Wh/kg;
5. With 43 invention patents, the lithium iron phosphate system is adopted, combined with unique processes, and the fully automatic production and high-precision production lines are used to ensure the high consistency of the battery cells, and will promote the continuous upgrading and iteration of products.
Impact on the lithium battery industry
At the technical level, most batteries on the market can currently operate at a temperature level of -20℃～60℃, while Xingdong Lithium Battery's low-temperature lithium battery can operate at a temperature range of -35℃～60℃, which is bound to stimulate the upgrading and innovation of low-temperature battery technology again and take the lead;
At the industry level, Xingdong Lithium Battery actively tackles the problem of low-temperature batteries and launches industry-leading products. Among them, the -35℃ low-temperature lithium battery has a charge and discharge efficiency of more than 90%, which not only forms a differentiated advantage, but also means that the industry will truly achieve equal power rights in the north and south, becoming another milestone in the development of battery technology;
In At the market level, one of the challenges currently faced by military high-altitude equipment is that as the flight altitude increases, the low temperature environment at high altitude may cause battery performance to decline; low-temperature areas in winter such as Inner Mongolia and Xinjiang are working hard to promote the construction of green mines; overseas markets such as Europe and the United States have severe winter climates, weak grid coordination capabilities, and high electricity prices. Residents need to match low-temperature energy storage systems to ensure stable electricity consumption in winter...
The market demand for high-performance low-temperature lithium batteries is quite urgent, and Xingdong Lithium's low-temperature batteries can not only fully meet the needs of the above-mentioned usage scenarios, but have also been mass-produced and can be put into use quickly.
At the level of green cost reduction, only by driving technological innovation and industrial innovation can we accelerate the development of new quality productivity and better serve the "dual carbon" goals. Xingdong Lithium's low-temperature batteries break the scene restrictions and can be widely used in the electrification of heavy engineering equipment, as well as power/energy storage in low-temperature areas around the world.
Conclusion
Overall, lithium battery companies have been actively responding to market challenges, constantly improving and breaking through, and continuously providing innovative and more cost-effective technical solutions for high-performance lithium battery demanders. Starting from customer pain points, they work hard for the sustainable development of the industry in the future. This is also the meaning and charm of technological development.
If you have any questions or would like to learn more, please don't hesitate to reach out to us.
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Post time: Sep-11-2024