24M Ships First Semi-Solid State Lithium-ion Batteries

In Clean Facts, Electric Mobility, Innovations, News, Products, Technology

24M, an innovative battery company, announced it has shipped the first semi-solid state lithium-ion batteries to commercial customers.

The new semi-solid state battery technology developed by the company features an energy density of more than 250 watt-hours per kilogram. According to Inside EVs, the energy density of the 2170 cells used in the Tesla Model 3 is 207 watt-hours per kilogram.

Proprietary information such as the actual cell chemistry or costs per kWh have not been revealed by 24M, nor has it specified who its customers for the new battery cells are. The company does say its new cells use a nickel manganese cobalt formula.

24M says it has also supplied battery cells with an energy density of 280 watt-hours per kilogram to an industrial partner and is pushing forward with research it hopes will result in batteries with 400 watt-hours per kilogram energy density in the near future.

To put that in perspective, such battery cells would nearly double the range of the Tesla Model 3. In the transportation sector, 24M is targeting manufacturers of hybrid, plug-in hybrid, battery electric, and fuel cell vehicles.

The research at 24M is funded by a $7 million 3-year contract with the US Advanced Battery Consortium, which in turn is funded by the US Department of Energy. The goal of the research is to develop battery cells with an energy density of 350 watt-hours per kilogram by the end of 2019.

Most of the improved energy density comes from the use of high density silicon anodes “which eliminate the use of a pore-clogging binder, enabling higher active material densities than can be achieved with conventional electrodes.”

Reference- 24M website, Clean Technica

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