24M Technologies has expanded its portfolio of Eternalyte electrolytes, which are designed to improve the charge rate and cold-temperature performance of batteries. Initially unveiled in February 2024 and designed for lithium metal batteries, the new enhanced offering is suitable for silicon- and graphite-based batteries used in applications that require high power and good low-temperature performance.
24M says its Eternalyte “delivers high rate capability and can be seamlessly integrated into existing manufacturing processes to enhance battery performance and achieve superior safety.”
24M says its Eternalyte offers up to three times the ionic conductivity (~26mS/cm at 25° C,~0.6 Li+ transference number) of standard electrolytes, significantly increasing potential charging rate without impacting energy density, regardless of battery chemistry.
Eternalyte’s high ionic conductivity preserves battery performance at extremely low temperatures. Eternalyte cells retain over 80% of their capacity at a 1C rate and a cell temperature of -20° C. EVs with Eternalyte are expected to have little to no range reduction in cold weather.
Eternalyte’s viscosity is compatible with conventional manufacturing equipment.
“Originally designed for lithium metal batteries, we quickly realized that the transformative nature of Eternalyte has far-reaching benefits for all types of batteries,” said Naoki Ota, 24M CEO. “Now, with the combination of Eternalyte and Impervio [separators], we improve the safety and performance of batteries, enhance consumer experiences and open new markets for electrically powered products.”
Source: 24M Technologies
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