CNET story highlights the Ryden battery from Power Japan Plus that represents a significant technological advances on two fronts:
1) Material costs and scarcity
2) Heat management
Additionally, it is noted that the recharge time of the Ryden battery vs. a similar lithium ion pack is reduced from 4 hours to 12 minutes for a full charge!
On the issue of material costs and scarcity, batteries made from organic cotton matter is a significant development needed for scaling technology and overcoming issues surrounding rare Earth metals. Furthermore, in discharging the energy there is no issue with heat that lithium ion packs suffer from, and as a result new electric vehicles may find it unnecessary for heat management systems mitigation.
While consumers may find they are most interested in reduced charge times, it is really the heat and scarcity advances that represent a significant step forward for electric vehicles to penetrate the market.