A new study indicates that advancements in electric vehicle battery technology will largely offset the impacts of global warming on battery lifespan. Older EV batteries from 2010 to 2018 may see up to a 30 percent reduction in lifespan under extreme warming scenarios, while newer models from 2019 to 2023 should maintain their durability. The research, conducted by University of Michigan scientists, highlights progress in battery management amid rising temperatures.
Electric vehicles have addressed early concerns about battery degradation through improved management systems and liquid cooling, limiting annual range loss to about 2 percent, according to researchers at the University of Michigan.
The study, published in Nature Climate Change on March 6, 2026, models the effects of climate change on EV batteries. Lead author Haochi Wu, now a postdoctoral researcher at Stanford, and colleagues examined how temperatures exceeding 40° C could destabilize electrodes, accelerate electrolyte decay, and weaken mechanical strength, worsening both calendar and cycle aging. They also factored in increased charging needs due to reduced vehicle efficiency in hotter conditions.
Simulations compared batteries from 2010–2018, with a current median lifespan of 15 years, to those from 2019–2023, which last 17 years on average. Under a severe 4° C warming scenario, older batteries might drop to a 12-year median lifespan—a 20 percent decline—with some losing 30 percent or more. Newer batteries, however, are projected to retain their 17-year median, with maximum degradation of 10 percent.
Wu noted, “I think these improvements are well-known to experts in the field. But when I started this project, I was looking at web forums and reading how people were deciding on cars. There are still a lot of durability concerns about EV batteries.”
Analysis across 300 global cities revealed disparities: in low-GDP regions like Africa, Southeast Asia, and India, older batteries could lose 25 percent of lifespan, versus 15 percent in Europe and North America. Newer batteries might see only 4 percent loss in those areas, remaining stable elsewhere. The models assume equivalent technology adoption worldwide but exclude variables like infrastructure stability or powertrain changes.
DOI: 10.1038/s41558-026-02579-z
