A German startup believes it has the recipe for electrical automobile battery cells which are cheaper, extra vitality dense, and fewer problematic for the atmosphere than present lithium-ion cells. However commercialization appears a good distance off.
Theion introduced Thursday in a press launch that it’s near finishing a 15 million euro (roughly $16.2 million at present trade charges) Sequence A spherical to growth of its sulfur-crystal battery chemistry. It is primarily based on proprietary anode know-how that Theion hopes will prolong battery life—one of many most important obstacles to sulfur-based chemistries.
Theion sulfur-crystal EV battery growth
With this chemistry, Theion is aiming for vitality density of 1,000 Wh/kg, which is about triple that of modern nickel manganese cobalt (NMC) cells at the moment, together with the 4680 cells used within the Tesla Cybertruck. Such vitality density would permit for a lot lighter cells with out sacrificing vary, or elevated vary from the identical quantity.
Theion claims it might obtain this with out utilizing nickel or cobalt, addressing environmental and human-rights issues related to the mining of these metals. Total, Theion claims its cells may have a one-third decrease carbon footprint—and price—in comparison with typical cells. That is as a result of, because the agency notes in its launch, sulfur is the sixteenth most considerable aspect on Earth, and prices a lot lower than the uncooked supplies of NMC cells.
Stellantis STLA Medium platform
However as Theion emphasizes, longevity in cycle life would be the problem for sulfur-crystal batteries. The startup believes its batteries want to keep up efficiency over 1,000 cost/discharge cycles to be commercially viable, a goal it goals to construct as much as, after preliminary testing of 500 Wh/kg cells at 500 cycles, earlier than beginning manufacturing.
Analysis into lithium-sulfur batteries for EVs goes again no less than a decade, and we have seen spectacular claims about their capability to spice up EV vary earlier than. Stellantis has even partnered with not one, however two startups—Lyten and Zeta Power—that intention to commercialize the tech, maybe by the top of the last decade. However it stays to be seen if any of those efforts—Theion’s included—will overcome the hurdles and get sulfur batteries into manufacturing EVs.
