Abstract
In this study, the waste soot generated by ships was recycled to produce an active material for use in lithium-ion batteries (LIBs). Soot collected from a ship was graphitized by a heat treatment process and used as an anode active material. It was confirmed that the graphitized soot was converted into a highly crystalline graphite, and was found to form carbon nano-onions with an average diameter of 70 nm. The graphitized soot showed a high discharge capacity and an excellent cycle life, with a reversible capacity of 260 mAhg−1 even after 150 cycles at a rate of 1 C. This study demonstrates that the annealed soot with a unique graphitic multilayer structure has an electrochemical performance that renders it suitable as a candidate for the production of low-cost anode materials for use in LIBs.
Highlights
Quantity of soot deposits that adhere to the economizer because it is immensely difficult to collect pollutants and emission data from ships in operation[20]
This indicates that the layers grew significantly with increasing heat treatment temperature (HTT) and changed to an almost perfectly crystalline graphite structure
This type of carbon is known as carbon nano‐onions (CNOs); the diameters seen here are much larger than that generally observed for CNOs (20–30 nm)
Summary
Quantity of soot deposits that adhere to the economizer because it is immensely difficult to collect pollutants and emission data from ships in operation[20]. Specification MAN Diesel & Turbo 7L35MC 5,320 PS x 200 rpm provide renewable energy This is possible because graphite is often used as an active anode material in LIBs, and the soot generated by marine diesel engines is mostly composed of carbon and graphitic nanostructures. In the case of graphite reformed from waste soot, such as that used in this study, precursor generation and carbonization processes are performed in a combustion engine, and only the graphitization process needs to be carried out. This can make this method much more cost effective than other methods of producing artificial graphite are
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