Correction to: Nature https://doi.org/10.1038/s41586-021-04139-1 Published online 26 January 2022

In the version of this Perspective initially published, there was a typographical error in the Abstract. In the text now reading “We conclude that battery packs suitable for flight with specific energy approaching 600 watt hours per kilogram may be achievable in the next decade given sufficient investment targeted at aeronautical applications,” “kilowatt hours” initially appeared in place of “watt hours.” The error has been corrected in the HTML and PDF versions of the article