Instead of just making lithium-sulfur batteries more durable, a new breakthrough in battery chemistry has resulted in increased charge and discharge rates, which could give electric mobility a much-needed boost.https://www.notebookcheck.net/New-battery-technology-promises-an-additional-621-miles-for-cars-and-enough-power-for-electric-planes.925029.0.html
The article mentions that this new chemistry helps with charge rates at the same time retaining high Li-S energy density. But nowhere does it say that durability is increased. Even one of the source articles does not address durability.