A team of researchers led by June Kang, a South Korean maritime and Maritime University, has found a way to convert smoke from ships ' fumes into graphite used in lithium batteries. As we all know, lithium batteries are widely used in a variety of products, including mobile phones and electric vehicles, graphite is one of the core components of lithium batteries.
China was the world's largest graphite miner in 2017, with much more than India and Brazil, which ranked two or three. South Korean researchers have collected fumes from ships and used a heat treatment device to form graphite as an anode material.
The study confirms that the material has high discharge capacity and excellent cycle life performance. About 80% of the smoke emitted by marine diesel engines is carbon, and the shipping industry emits about 900,000 tonnes of particulate emissions a year-1.7 million tonnes, which, in the case of ships, not only increases the cost of cleaning, but also risks corrosion and soot ignition.
For example, a 5300TEU ocean container vessel can collect more than 1000 litres of smoke a year. The South Korean study, for the first time, has tried to recycle ships ' waste fumes into lithium-ion batteries, providing a unique way of using waste to produce renewable energy.
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