Hongqi Ultra-Fast Charging Battery Achieves 10% To 97% Charge In 8 Minutes

Hongqi Develops Ultra-Fast Charging Battery Technology

Hongqi has developed an ultra-fast charging battery that achieves industry-leading charging performance, with the Hongqi ultra-fast charging battery charging from 10% to 70% state of charge in 3 minutes and 41 seconds. The battery was developed internally by the Hongqi brand together with China Automotive New Energy Battery Technology (CNET). Testing conducted at 25 C showed the battery could charge from 10% to 97% in only 8 minutes and 3 seconds, according to a statement from the brand.

The newly developed battery technology could potentially surpass the charging performance of BYD second-generation Blade Battery if it reaches mass production. Hongqi stated that the battery achieved charging figures that lead the industry, although the company has not announced a production timeline or confirmed which vehicle model will receive the technology first. BYD's latest flash charging technology is already available across multiple vehicle models.

Charging Performance Comparison With Existing Battery Technology

The charging performance comparison highlights the advantage demonstrated by Hongqi's new battery technology against BYD's second-generation Blade Battery. The comparison focuses on charging time required to move from 10% state of charge to higher battery levels under specified testing conditions.

Advanced Battery Technologies Enable Higher Charging Speeds

The Hongqi ultra-fast charging battery uses a highly efficient ultra-fast charging anode designed to overcome charging rate limitations in battery cells. The technology supports a peak charging rate of 12C, enabling faster energy transfer during charging. Hongqi also developed a dedicated electrolyte with low desolvation energy to reduce resistance during lithium-ion migration, improving the overall charging capability and efficiency of the battery system.

The battery cell uses composite carbon source coating and bulk-phase doping modification technology to reduce internal resistance by 15% compared with comparable cells. According to Hongqi, this improvement enhances charge transfer efficiency and improves charging response speed. These innovations are aimed at reducing charging duration while maintaining battery performance and reliability during repeated high-speed charging cycles.

Intelligent Thermal Management And Battery Safety Systems

The battery incorporates an intelligent liquid cooling system designed to maintain uniform temperature distribution during ultra-fast charging. Hongqi stated that the temperature difference across the battery pack remains within 3 C during fast charging conditions. The thermal management system automatically adjusts temperature control strategies based on factors including driving conditions and parking status, helping maintain optimal operating conditions while reducing energy consumption from cooling operations.

The battery also features a safety-boundary-based adaptive fast-charging strategy that continuously monitors cell temperature rise and adjusts charging power output in real time. The system performs closed-loop verification of cell voltage and charging status to prevent issues such as overcharging and overvoltage. Hongqi said validation of this ultra-fast charging technology represents an important milestone in power battery innovation.

Hongqi Expands Battery Technology Development

The latest ultra-fast charging battery development represents another major battery technology initiative from FAW Hongqi. The company previously introduced its first prototype vehicle equipped with an all-solid-state battery pack on December 31, built on the Hongqi Tiangong 06 platform. The development indicates the brand's continued focus on next-generation electric vehicle technologies, including advanced battery chemistry, faster charging systems and improved energy management solutions for future electric vehicles.

Frequently Asked Questions

What is the charging speed of Hongqi ultra-fast charging battery?
The Hongqi ultra-fast charging battery can charge from 10% to 70% state of charge in 3 minutes and 41 seconds during testing. The battery also reaches 97% charge from 10% in 8 minutes and 3 seconds. The technology uses advanced anode materials, electrolyte improvements, reduced internal resistance and intelligent thermal management to achieve faster charging performance. Hongqi has not yet confirmed when this battery technology will enter mass production or which vehicle model will use it first.

How does Hongqi battery technology compare with BYD Blade Battery?
Hongqi's newly developed battery demonstrated faster charging performance compared with BYD's second-generation Blade Battery during announced testing conditions. Hongqi achieved 10% to 70% charging in 3 minutes and 41 seconds, while BYD's battery requires 5 minutes for the same charging range. Hongqi's battery also reached 97% charge in 8 minutes and 3 seconds compared with BYD's 9 minutes. However, BYD technology is already available in production vehicles, while Hongqi has not announced commercial availability.