Record-breaking electric car sales confirm that the future of electric transport is here. Globally, 10 million lithium-ion battery-powered vehicles are now on the road. The International Energy Agency predicts that number will increase to 300 million by 2030, accounting for over 60 percent of new car sales.
But a huge problem looms on the horizon: in less than a decade, nearly two million tons of lithium-ion batteries from electric vehicles will be retired each year, and the current recycling infrastructure isn’t ready for them. Most lithium-ion batteries are tossed in landfills, with only five percent recycled worldwide.
Researchers at Newcastle University in the UK warn that this growing stream of spent batteries poses “an enormous threat” to the natural environment and human health. “Degradation of the battery content in some cases may lead to the emergence of chemicals structurally similar to chemical warfare agents.”
Given the risks, upping our capacity for recycling these batteries is imperative not only to avoid possibly catastrophic landfill disposal, but also to reduce the need for harmful mining. More than 70 percent of the world’s cobalt, the most expensive element in a lithium-ion battery, is produced in the Democratic Republic of the Congo (DRC). One would assume this to be an economic miracle for miners in the DRC, however unrelenting poverty forces even the children to work in the mines instead of attending school.
In addition to pitiful wages, DRC miners face serious health threats and local environmental annihilation. Researchers at the University of Lubumbashi found that residents near the mines, especially children, had higher urinary levels of cobalt, cadmium and uranium. The urinary cobalt concentrations found in this population are the highest ever reported for a general population. Fish in the DRC are also heavily contaminated with high levels of metals, while soil samples are so contaminated that the mining regions of the DRC are considered among the 10 most polluted areas in the world.