CATL has unveiled a water cooled battery pack with excellent charge discharge characteristics.
The Qilin Battery sets a new record for volume utilization at over 72 percent, making it the most integrated battery in the world today, according to CATL.
The battery can reach an energy density of 255 Wh/kg, easily allowing the vehicle to achieve a range of 1,000 kilometers, CATL said, adding that it will be in mass production in 2023.
CATL unveils Qilin Battery, says it can easily achieve 1,000 km vehicle range-CnEVPost
Notably, CATL did not hold a launch event for the battery’s unveiling, but announced the technical details directly on Weibo and WeChat at 15:30 Beijing time, as previously mentioned.
CATL named the battery in pinyin instead of the English “Kirin” for “麒麟“.
CATL said it has quadrupled the heat transfer area through its world-first large surface cooling technology, which places the water-cooling component, traditionally located at the bottom of the cell, between the cells.
This technology supports a fast hot start in 5 minutes and charging to 80 percent in 10 minutes, CATL said.
In extreme conditions, the cells can be cooled down rapidly, effectively blocking abnormal heat transfer between cells, according to CATL.
With the same chemistry and the same pack size, the Qilin Battery delivers a 13 percent increase in power compared to the 4680 battery, providing an overall improvement in range, fast charging, safety, life, efficiency, and low-temperature performance, according to CATL.
The Qilin Battery eliminates the cross-beam, water-cooling plate and thermal pad, which were separate designs, and integrates them into a multi-functional flexible sandwich for more efficient system integration.