24M Technologies launches Eternalyte to improve EV charging and cold-weather performance

24M Technologies, a technology company focusing on battery design and manufacturing, has developed Eternalyte, an electrolyte designed to provide ultra-fast charging and better performance in extreme cold temperatures.

Eternalyte looks to bring about a change in conductivity, which is the rate at which ions flow between the anode and cathode.

The higher a battery’s ionic conductivity, the faster the charge rate – and with up to three-times the ionic conductivity of standard electrolytes, Eternalyte should increase rate performance without compromising energy density regardless of the chemistry.

Resulting in a charge rate four-times higher than a conventional electrolyte, Eternalyte technology can deliver 300+km of additional range in under four minutes (charging from SOC 15% to 80%).

This ultra-fast charging capability does not require a mega-watt charging infrastructure, and due to a high conductivity and working temperature window, the technology brings an increase in battery performance in extreme cold environments.

Where conventional batteries lose about 25% of their capacity at 0°C and almost all capacity at much lower temperatures, 24M’s Eternalyte electrolyte retains essentially all capacity at 0°C and more than 80% capacity at -40°C, hoping to eliminate a major issue with today’s EVs in winter and cold climates.

Naoki Ota, president and CEO at 24M Technologies said: “24M’s Eternalyte electrolyte breakthrough solves some of the biggest challenges of lithium-ion batteries today.

“Rapid charge, superior low-temperature performance and great cycle life with lithium-metal and other high energy density chemistries, Eternalyte provides outstanding performance for applications ranging from EVs to consumer products.