Via the Ineffable Island - Leif Asp et al., "Structural Battery and its Multifunctional Performance". From January.
Last I looked I was looking to Liceron's 650 Wh/kg; this article is boasting 24. But they say - (quietly) - that's not entirely the point.
Leif Asp's team are promising to store that energy in "structural load paths". So: they're taking mass that would otherwise be used only to hold a Tesla car together, and using some of that to store energy as well. They project a "stiffness" of 75 GPa, like aluminium. Which element is itself a battery-cell candidate.
Imagine if that Cessna (also) was a battery, rather than having to lug 'em around, taking up cargo space.
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