The nascent electric aviation sector currently faces a defining bottleneck that has less to do with aerodynamics and everything to do with chemistry. While the promise of urban air mobility has attracted billions in capital, the operational reality is constrained by the limitations of conventional liquid lithium-ion systems.
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The promise of Urban Air Mobility (UAM) has long been predicated on a single, seductive economic thesis: that replacing internal combustion engines with electric powertrains will collapse the operating costs of vertical flight to levels comparable with ground transportation.