Eve Energy has unveiled a fast charging battery it claims can provide 300 km driving range with five minutes charge.
The Chinese company’s Omnicell 6C fast-charging large cylindrical all-purpose NCM battery is designed for high-end passenger cars. The battery can charge from 10–80% power in nine minutes at a normal temperature of 25°C, and a driving range of 300 km after charging for five minutes. In a low temperature of -30°C, charging from 10–80% takes 25 minutes, it said.
Johnson Feng, product director with the Eve Energy Battery System Research Institute, said: “The difficulty in reaching 6C, the C being the measure of battery discharge relative to the battery’s maximum capacity, is to reduce internal resistance while improving cooling efficiency. Speeding up the heat exchange while maintaining a low internal battery resistance ensures the battery runs at an optimal temperature.”
The company points to technical innovations in electrolyte, separator and other materials in the battery cell, reducing the internal resistance of the battery cell to 1.4mΩ. This translates to a 20% internal resistance reduction for 10 minutes’ fast charging.
Three-sided heat dissipation on the top and both sides of each cell controls the temperature of the battery cell better and solves the high-voltage current plate heating issue of the battery, it said. That allows the battery to maintain a suitable temperature with a heat exchange area to reach 52.3 mm²/Wh, increasing the heat exchange efficiency by 270% when fast charging.
Eve said it plans to launch high-power, high environmental tolerance, solid-state batteries in 2026, and gradually promote 400Wh/kg all-solid-state batteries by 2028.
Meanwhile, Chinese EV company Zeekr (part of Geely) announced its upgraded EV batteries support 5.5C ultra-fast charging that allows vehicle batteries to charge from 10–80% in 10.5 minutes. Despite the slower charge time, it claims this is the fastest rate in the world.
Its new 007 sedan model has LFP batteries and is connected with Zeekr V3 ultra-fast charging piles. It said optimised materials and upgraded technology gives a higher speed than existing NCM batteries. At temperatures as low as -10°C, the vehicles charge from 10–80% SOC in 30 minutes, it said.
Zeekr plans to expand its Chinese network to 1,000 ultra-fast charging stations in 2024 and will be operating over 10,000 ultra-fast charging piles in 2026, all supporting 800V charging.
Israel’s Storedot said last month it remains on track for production-readiness of its extreme fast-charging cells that deliver 100 miles charged in five minutes this year. It aims to deliver 100 miles charged in four minutes in 2026 and 100 miles in three minutes by 2028.
