Toyota says it's made a huge breakthrough in battery tech for electric vehicles. The automaker says it's found a way it believes can give a car a range of 745 miles on just a 10-minute charge. The plan is to manufacture the new solid-state batteries as soon as 2027. So far these types of batteries have been prohibitively expensive but Toyota says they'll be able to slash the cost, size and weight. The carmarker also will address the fire risk issue.