Una Mullally: 40 years after the first Pride, we’re still fighting for LGBTQ+ people to live safe and free lives
Next up is nickel, and if you’re wondering why a car’s battery is expensive, this is why. Nickel is pricey – USD$18,500 per tonne at current market prices – and an average car battery uses around 29kg of the stuff. Nickel makes up the cathode – the bit of the battery to which the ions of lithium flow when you turn on the power.
Lithium is the most important part of the battery, yet by weight it accounts for just 3.2 per cent of the EV battery. It’s the electrons that make up lithium’s atoms that actually store the charged electrical energy, though. Without that tiny 3.2 per cent, a battery is merely an assembly of parts. Lithium itself isn’t harmful – you’ll find lots in potatoes and tomatoes – but it takes a colossal amount of water to extract it, as much as 500,000 litres per tonne of lithium.
Nonetheless, the official word is that EVs are still, overall, cleaner. According to the US Environmental Protection Agency: “Some studies have shown that making a typical EV can create more carbon pollution than making a gasoline car. This is because of the additional energy required to manufacture an EV’s battery.
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