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Getting rid of cobalt to make electric vehicle batteries cheaper and ethical

The price of lithium-ion batteries has fallen by around 89% between 2010 and 2020, but one of the most expensive materials they contain is cobalt. This metallic element which is mainly obtained by refining nickel ore accounts for approximately 30% of the cost of batteries that power everything from your cell phone to electric vehicles. For a typical 80 kilowatt-hour battery, cobalt costs $800 at the price.

Apart from the cost, cobalt also has a dark side, it is associated with human rights violations and child labor encouraging companies to seek alternatives to manufacture cobalt-free batteries.

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