“World-record” battery could mean cheaper, longer-range electric cars are coming soon

Originally posted on VentureBeat:

There are two major concerns when it comes to electric cars; how long they can drive without needing to stop for a charge and how much they cost. Envia, a lithium ion battery developer, hopes to eliminate both concerns with its latest world-record 400 watt-hour/kilogram battery.

“We have built 400 watt per kilogram batteries, which have been considered the holy grail of electric cars,” said Envia’s chief executive Atul Kapadia said in an interview with VentureBeat, “This is a milestone that many car companies have wanted to reach.”

To understand the cost of charging and using an electric car battery, you have to understand how we pay for electricity. Power utilities charge by kilowatt-hour, which is 1000 kilowatts of power used every 60 minutes. The industry standard for electric car batteries has hovered between 110 and 140 watt-hours/kilogram, costing between $250 and $350 per kilowatt-hour to operate.

Envia’s new battery clocks in at…

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