Kevlar MicroCore promises breakthrough in battery separator tech

This is the claim of DuPont which has introduced Kevlar MicroCore, a material described by the company as ‘a unique, high-temperature-resistant, super fine fibre material.’

Graphene aerogel sponge promises battery boost

Unlike other materials currently used in battery separators, the new solution is claimed to be ‘inherently non-flammable’, will not shrink – even at 300°C – and has demonstrated better lithium-ion transfer abilities in the battery separator.

In a statement, Carlo Fiorella, global market manager, DuPont Automotive, said: “New Kevlar MicroCore is the latest example of DuPont’s core role in electrification and providing innovative solutions that will help advance sustainable mobility.

“When used in battery separators, Kevlar MicroCore can help prevent the biggest safety issue for EV batteries - thermal runaway. Testing has shown that it may also enable EV batteries to charge faster and deliver higher acceleration power, addressing two key performance concerns for both consumers and EV manufacturers.”