Mercedes and ProLogium deepen partnership on solid-state batteries

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Mercedes will test the safety credentials of ProLogium’s solid-state batteries.

The fourth-generation tech includes a non-flammable inorganic electrolyte.

ProLogium is planning a large solid-state battery plant in Dunkirk, France.

For more than a decade, Mercedes-Benz has worked with Taiwanese energy company ProLogium to help bring advanced solid-state battery technology to the auto industry. The two firms have now strengthened their partnership, meaning Mercedes will get priority access to test the firm’s fourth-generation cells, which could help to reshape the automotive industry.

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Solid-state batteries have long been viewed as the holy grail of battery tech. By replacing the liquid electrolytes of traditional lithium-ion batteries with non-flammable solid materials, these batteries offer higher energy density, support faster charging, are safer, and last longer.

Read: Geely’s New Solid-State Battery Lasts 621,000 Miles And Starts Pilot Testing Next Year

Mercedes-Benz, much like BYD, Toyota, Nissan, Honda, VW, Stellantis , Chery, and others, is actively developing and testing these batteries for its next generation of EVs. Some may be ready to hit the market within the next 12 months.

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Through its deal with ProLogium, Mercedes-Benz will perform electrical, thermal, and safety testing on the company’s Gen4 lithium ceramic battery cells at its facilities and at third-party testing institutes. These batteries use ceramic separator technology and have a non-flammable inorganic electrolyte, which is said to enable not only fast charging but also high power output.

“At Mercedes-Benz, we are committed to shaping the future of electric mobility through technological leadership and innovation,” Mercedes-Benz Group AG member of the Board of Management, Jörg Burzer, said. “Our long-standing partnership with ProLogium is a strong example of how we bring the best expertise together to advance next-generation battery technologies. By combining ProLogium’s pioneering solid-state battery approach with Mercedes-Benz’s deep battery development, testing and integration capabilities, we are taking the next step in exploring advanced battery technologies for future electric vehicles.”

Solid-State Battery Production Is Coming To Europe

ProLogium already operates a large battery factory in Taiwan and is planning a site in Dunkirk, France, with a capacity of up to 44 GWh. It says this factory will allow it to provide cells to customers across the continent, including Mercedes.

The German brand has another important solid-state battery partner. In addition to working alongside ProLogium, Mercedes-Benz is also testing lithium-metal battery cells from American company Factorial Energy.

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Last year, a Mercedes-Benz EQS equipped with one of Factorial’s solid-state battery packs was driven 748.8 miles (1,205 km) on a single charge. It could have been driven even further, as Mercedes says the EQS finished the test with an estimated range of 85 miles (137 km) left.

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