General Motors (GM) is advancing its electric vehicle (EV) technology at its battery labs in suburban Detroit. The facilities are focused on analyzing the durability of lithium-ion cells under various challenging conditions, including extreme temperatures and heavy usage. Researchers utilize advanced tools like electron microscopes and large-scale testing equipment, such as the Megashaker, to simulate years of wear on battery packs similar to those used in models like the Cadillac Escalade IQ.
GM reports that it can replicate 10 years and 250,000 miles of battery use in approximately six months, addressing concerns about EV durability amidst declining consumer interest and a challenging market influenced by rising prices and recent changes in federal policies regarding clean car credits. The withdrawal of federal incentives, which previously supported EV purchases, has forced GM to adapt its strategies. The company believes this shift may lead to greater differentiation between successful and struggling automakers in the EV sector.
To mitigate costs, GM is developing lithium manganese rich (LMR) batteries, which the company claims can provide longer driving ranges at comparable prices to existing solutions, like lithium iron phosphate (LFP) batteries that are prevalent in the market. The LMR cells are expected to offer significantly more range—over 400 miles for SUVs and pickups—while costing GM less per battery pack, potentially offsetting lost incentives.
GM is making substantial investments in battery technology, including the construction of new facilities and expenditure on research to ensure the efficacy and competitiveness of its batteries against established global players, particularly in China. The company aims for its LMR cells to exceed the performance of current market leaders while establishing a more sustainable supply chain for battery materials.
Despite recent industry challenges, GM remains committed to advancing its EV technology and expanding its product offerings, emphasizing the importance of aligning costs with consumer expectations for wider market acceptance.
Source: https://www.theverge.com/transportation/801780/gm-ev-battery-lab-lmr-range-cost