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Lithium-sulphur batteries may well be the next generation of power cells that we use in our electric vehicles — if scientists can get them to last longer.

And that’s exactly what a team of researchers at the University of Michigan has tried to accomplish with the development of a 1,000-cycle battery that could quintuple EV range.

What’s the potential of lithium-sulfur batteries?

Lithium-sulfur (Li-S) batteries have a series of advantages over their lithium-ion (Li-ion) counterparts: 

  1. The theoretical energy density of a lithium-sulfur cell is 2,510Wh/kg, compared to a lithium-ion’s 300Wh/kg. This means that Li-S batteries can store two to five times more energy than Li-ion ones, and in turn, they can last substantially longer on a single charge, delivering bigger range. 
  2. Rather than using costly cobalt, which is vulnerable to fragile global supply chains, they use sulphur, which is cheaper and the ninth most abundant element on Earth.