Lithium-ion battery pack prices have plunged from $1,100 per kilowatt-hour in 2010 to $137/kWh—great news for electric vehicles.

More info: https://about.bnef.com/blog/battery-pack-prices-cited-below-100-kwh-for-the-first-time-in-2020-while-market-average-sits-at-137-kwh/