Aluminum stabilizes high-nickel cathodes, curbing rapid capacity loss in EV batteries

To increase driving range, electric vehicle (EV) batteries rely on high-nickel cathodes. However, this high nickel content has a critical drawback: battery performance degrades rapidly during charging and discharging. The primary cause has now been identified as internal structural distortion, which generates “oxygen holes” that shorten the battery’s lifespan—similar to how a warped pillar can crack a building’s walls.

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