Battery |  BMW will use circular cells in the “New Class” from 2025

Battery | BMW will use circular cells in the “New Class” from 2025

In 2025, the “New Class” from BMW should start with a mid-size sedan and an SUV. Battery-electric vehicles rely on newly developed circular cells, which improve charging performance and range.

BMW’s new round cells have a uniform diameter of 46 mm and two different heights. Regarding the current, prismatic cells, according to BMW, the nickel content in the sixth generation battery is increased on the cathode side and the cobalt content is reduced at the same time. The silicon content increases on the anode side. “The energy density is increased by more than 20 percent, the charging speed is increased by up to 30 percent and the range is improved by up to 30 percent,” says Frank Weber, BMW AG Board Member for Development. The 800 V technology allows a significantly increased charging capacity with a current of up to 500 A. The battery system plays an important role in the body structure and can be connected easily and in a space-saving way (“load-to-open-body” ). The cell module level is omitted.

Thanks to the new battery cell and the new integration concept, high-voltage battery costs can be cut in half compared to the fifth generation. Partners CATL and Eve Energy will each build two factories in China and Europe to produce the new battery cells. Two new factories are also planned in North America. Manufacturing is CO2– be reduced by using raw materials such as cobalt, lithium and nickel that are already in circulation. The use of electricity from renewable energy sources should also reduce CO2-Reduce points in battery cell production by up to 60% compared to the current generation of battery cells. According to BMW, the round cells also offer the opportunity to use cathodes made of lithium iron phosphate (LFP) for the first time. As a result, the important raw materials of cobalt and nickel in the cathode material can be completely separated. Meanwhile, BMW is also developing solid-state batteries.