Last Update: 04/05/2026 at 2:50 PM EST
EV Battery Advances Cut Heat Losses
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Executive Summary
New EV batteries sharply reduce heat-driven lifetime losses under warming, easing climate risks and regional gaps across 300 cities.
- Under 2 C warming, older EV batteries lose 8 percent on average and up to 30 percent at worst
- Newer batteries from 2019 to 2023 cut average lifetime losses to about 3 percent and maximum losses to 10 percent
- The study combines EV simulations, battery degradation models, and downscaled climate data for 300 global cities
- Increased cell temperature is the main driver of lifetime decline under warming
- Improvements in cell chemistry, thermal management, and system design boost thermal resiliency
- New batteries also reduce regional inequities in projected battery lifetime losses
- Findings point to climate adaptation co benefits from faster battery technology progress
Quick Facts
- What: New EV batteries offset climate driven durability losses
- Where: Across 300 global cities
- Why: Higher cell temperatures speed battery degradation and lifetime loss
- Who: University of Michigan researchers led the study
- When: Under projected 2 C warming conditions

