"We reviewed more than 80 different sources and found that in 2007, cost estimates for lithium-ion batteries for EV manufacturers were above US$1000 per kWh.
Seven years later, the battery cost for leading electric car models was around US$300 per kWh. This is particularly impressive, given that production and sales of EVs have only really started to pick up in the last couple of years.
If prices keep falling at this rate, we could be on course to reach US$150 per kWh – the price point around which some people believe EVs can become directly competitive with petrol-driven cars – in the next decade."
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