Jeff Dahn works with Shirley Meng who works with Goodenough!
If this article is correct, then Tesla is working on a form of solid state battery.
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"Is there such a thing as a battery whose capacity to store energy
increases with age? One respected team of researchers say they have developed just such a technology.
Controversy surrounds their claims, however, in part because thermodynamics might seem to demand that a battery only deteriorates over many charge-discharge cycles.
The researchers have a response for that
critique and continue to publish peer-reviewed papers about this work. If such claims came from almost any other lab, they might be ignored and shunned by the broader community of battery researchers, the same way physicists turn their noses up at anything that smacks of a perpetual motion machine.
But this lab belongs to one of the most celebrated battery pioneers today—and one of the inventors of the lithium-ion battery itself.
John Goodenough, who at 96 continues to research and publish like scientists one-third his age, last year joined with three co-authors in publishing a
paper that grabbed headlines. (
Spectrum had
profiled him and his battery technology the year before, following an
initial announcement about his group’s new glass battery.)
Goodenough and collaborators claimed they’d developed a non-flammable lithium battery (whose electrolyte was based on a glass powder) that had twice the energy density of traditional lithium-ion batteries. They also published a graph that showed an
increase in capacity over more than 300 charge-discharge cycles. (This increase, however, pales in comparison to the cell's at least 23,000-cycle lifespan."