At the battery exhibition in Shenzhen, the Chinese company SEVB showcased a groundbreaking battery charging at 1400 amperes. This innovation, called Star Chaser 2.0, was the highlight of the seventeenth international exhibition, offering a range of more than 150 kilometers with just one minute of charging – a world-first achievement.
Electric car manufacturers have been able to match the performance of gasoline cars with their batteries, but the issue of long charging times remains a challenge. While it takes mere minutes to refuel a gas tank, electric vehicles often require a significant amount of time to recharge.
The speed of battery charging is typically measured in units C, with modern stations achieving a 4C rate that allows for a full charge in about 15 minutes. The Star Chaser 2.0 raises the bar substantially to 12C, enabling a five-minute charge time. This remarkable improvement over the 4C speed of the previous generation marks a significant advancement in battery technology.
The achievement of such rapid charging speeds is the result of years of research in battery block design by SVB. The company’s innovative Tianqing architecture, featuring a unique physical separation of thermal and electrical components, has led to enhanced energy density. The incorporation of flexible printed circuit boards and a liquid cooling system within the battery blocks has not only ensured safety but also optimized space utilization, allowing for the record charge speed.
Central to the system is the XINXINGCHI 2.0 Kiloamp Extreme Charging Edition module, capable of delivering a current of 1400 amperes to the battery. Operating at a voltage of 1000 volts, the onboard platform of the electric car achieves a charging power of 1.4 megawatts, equivalent to traditional gas refueling times.
Aside from its rapid charging capabilities, the Star Chaser 2.0 also offers an impressive range of 800 kilometers at a reduced power level of 6C. Engineers have successfully addressed concerns regarding overheating and fire risk with a multi-layer cooling system and advanced heat-insulating materials, ensuring reliable performance even in extreme conditions.
In addition to electric cars, SEVB’s technologies have also been extended to motorcycles and scooters, boasting the first battery with 6C charging capabilities in the market. The incorporation of super-low internal resistance reduces heating by five degrees, enhancing efficiency and durability.
With a focus on affordability, SVB estimates that an electric car equipped with the new battery will be more cost-effective for the owner than a gasoline vehicle within the first three years of use, making sustainable transportation more accessible to consumers.