Geely Unveils Battery Tech to Withstand Megawatt Charging
The new Ultra Short Blade Battery extends warranty to 200,000 km as it supports 1,100 kW charging speeds.
Geely Auto Group has introduced a new battery architecture designed to endure extreme charging speeds without sacrificing longevity, marking another step in the escalating competition among Chinese automakers to dominate ultra-fast charging infrastructure.
What Happened
During a launch event in Ningbo, China, Geely revealed a 2.2 megawatt charger capable of delivering power to two electric vehicles simultaneously. While the station can dispense 2.2 MW, specific high-end models under the Geely umbrella, such as the Lynk & Co 10, are engineered to peak at approximately 1,100 kilowatts. In a demonstration, the Lynk & Co 10 charged from 10% to 97% in just 8 minutes and 40 seconds. This performance significantly outpaces current Western standards, where leading EVs like the Lucid Gravity and Porsche Cayenne Electric peak at 400 kilowatts, and the upcoming Mercedes-AMG GT is expected to reach 600 kilowatts.
To address the thermal and chemical stresses associated with such high power inputs, Geely developed its "Ultra Short Blade Battery." The cells measure either 395 mm or 370 mm in length, substantially shorter than the 580 mm cells used by Geely previously and the industry-common 960 mm cells. According to Ren Xiangfei, chief engineering scientist at Geely, reducing the cell length shortens the migration path for ions, thereby lowering internal resistance and heat generation. The company also implemented structural changes to the cathode and anode, using "high entropy elements" to widen ion pathways and modifying the graphite anode to prevent lithium plating, a process that can cause dendrite formation and permanent battery damage.
Why It Matters
The announcement highlights the growing divergence in charging technology between Chinese and Western markets. While Western automakers are currently planning rollouts for 750 kW chargers, Chinese manufacturers like Geely and BYD have already surpassed the 1,000 kW threshold for passenger cars. This competitive pressure forces the industry to re-evaluate battery chemistry and thermal management strategies. Geely’s approach relies on a combination of hardware modifications and software intelligence, including an AI-powered system called Xingrui PowerMind that predicts battery temperatures 30 seconds in advance and adjusts charging speeds in real time. The system aims to maintain an average battery temperature of 55 degrees Celsius, staying below the 65-degree Celsius ceiling set by new Chinese national standards effective this July.
For consumers and the broader market, the extended warranty serves as a critical signal of confidence. Geely increased the battery warranty for this new technology from eight years/150,000 kilometers to eight years/200,000 kilometers. However, independent verification remains a challenge. Earlier this year, debates arose in China when a blogger reported that a BYD vehicle reached 76.42 degrees Celsius during a test, higher than the 71 degrees Celsius displayed by the vehicle. As megawatt charging scales, the long-term impact on battery health will depend on real-world data rather than manufacturer claims alone.
The Bottom Line
Geely’s new battery technology demonstrates that megawatt charging is technically feasible without immediate catastrophic degradation, provided significant engineering changes are made to cell size, material structure, and thermal management. While the company asserts that its solutions prevent irreversible aging, the true test of durability will unfold over the next several years as these vehicles accumulate mileage in diverse real-world conditions.
