Chinese automaker Hongqi says it has tested a newly developed battery designed for ultra-fast charging. According to the company, the battery can charge from 10% to 70% state of charge in 3 minutes and 41 seconds at an ambient temperature of 25 degrees Celsius. Charging from 10% to 97% is said to take 8 minutes and 3 seconds. However, Hongqi did not provide a timeline for mass production or identify the first vehicle model that will use the new battery.
In-House Cell Technology and Thermal Management
According to Hongqi, the battery was developed together with China Automotive New Energy Battery Technology (CNET), with most of the technology created in-house. The company attributes the high charging performance to a newly developed anode designed to support a peak charging rate of 12C. Hongqi also says it has developed its own electrolyte to improve lithium-ion transport.
The company further states that it modified the cell design. By combining coating technology with material optimization, the internal resistance of the cells has reportedly been reduced by 15% compared with similar battery cells. According to Hongqi, this improves charging efficiency and charge transfer response.
Safety Features Intended to Support Fast Charging
According to the company, temperature control is handled by an intelligent liquid-cooling system. During fast charging, the temperature difference across the battery pack is said to remain below 3 degrees Celsius. Hongqi also says an adaptive fast-charging strategy continuously monitors cell temperature and charging power. Late last year, the brand also unveiled a prototype vehicle equipped with a solid-state battery.
Source:
https://cnevpost.com/2026/07/28/faw-hongqi-battery-charges-10-70-3-mins-41-secs/
