EVE Energy Debuts eXtreme-Fast-Charging Technology at SNE Battery Day

On July 23, the inaugural SNE Battery Day, organized by SNE Research, took place in Seoul, South Korea. Dr. Ren Ren from the Central Research Institute of EVE Energy was invited to present at the event. His presentation on the "Introduction of eXtreme-Fast-Charging Technology" captivated the audience.

Dr. Ren began by analyzing the current new energy vehicle market, highlighting consumer concerns about charging times and driving range. He pointed out that while some vehicles now offer ranges exceeding 400 km and even 1000 km, charging speeds remain slow, underscoring the urgent need for fast-charging technology. The prevailing fast-charging solutions for power batteries, though effective, often compromise energy density. Hence, there is a necessity to balance fast charging capabilities with high specific energy in battery design.

To address this issue, EVE Energy has been working since 2018 to develop technology that combines high specific energy with fast charging performance. Dr. Ren showcased several technological innovations from EVE Energy, including high porosity straight thick electrodes, EC-free electrolytes, ultra-thin superconducting separators, and silicon surface stabilization technology. These advancements enable EVE Energy's batteries to deliver both eXtreme fast charging and high specific energy, meeting the key needs of new energy vehicle users.

Testing has shown that EVE Energy's eXtreme-fast-charging batteries perform exceptionally well. After 1500 cycles of 1C/1C charging, the batteries retain over 80% capacity and show no degradation during 6-minute eXtreme-fast-charging cycles, indicating no damage and meeting the service life requirements for passenger cars.

Additionally, the batteries exhibit excellent discharge performance across a wide temperature range. For instance, they maintain an 80% capacity retention rate at -20°C, effectively addressing driving range concerns in winter conditions. In terms of energy storage, the new battery technology ensures that the rate of voltage decline in a fully charged state is comparable to existing systems, as demonstrated in comparisons with Gr+SiO products. The products have also received UN38.3 certification, ensuring safety.

At the application stage, EVE Energy's 50Ah cells achieve 60% charge in just 6 minutes compared to other commercialized 50Ah cells, reducing charging time by 80% and increasing energy density by 18%. This results in a 6-minute charge providing a 500-mile driving range, offering a convenient and efficient driving experience for new energy vehicle users.

EVE Energy plans to leverage its strengths to advance research in eXtreme-fast-charging technology, further promoting new energy vehicles and contributing to global sustainability in the future.

Edit by paco