Panama city energy storage graphitization

Does laser irradiation accelerate graphitization of PAN-based carbon fibers?

The present work exhibited the accelerated graphitization of PAN-based carbon fibers by the effect of K + on microstructure evolution under laser irradiation.

Why are graphitizable carbon materials prepared using high-temperature thermal treatment method?

During the process of graphitization, the bonds between carbon atoms will break, and the resistance to structural rearrangement is high, thus requiring very high energy. Therefore, in the early stage, most graphitizable carbon materials were prepared using high-temperature thermal treatment method.

Does graphitization degree and crystallinity affect electrochemical performance?

The effect of graphitization degree and crystallinity of graphitic carbons on the electrochemical performance has been verified . The results in Fig. 13 a showed that there was no obvious voltage plateau featuring capacitive behavior for the amorphous carbon.

How does temperature affect graphitization progress of polyacrylonitrile-based carbon fibers?

Graphitization progress of polyacrylonitrile (PAN)-based carbon fibers is closely dependent on the treatment temperature; exactly, controlling the microstructural morphology of carbon layers in the fibrous solid state can accelerate the formation of a highly graphitic structure.

How does graphitization affect coulombic efficiency?

Along with the increasing graphitization degree, the discharge plateaus and capacity of graphitic carbons increased. Meanwhile, the high-graphitization carbon material exhibited stable cycling performance and high coulombic efficiency (Fig. 13 b).

What is the graphitization process of non-graphitizable carbon sources?

However, the graphitization process of non-graphitizable carbon sources can be also achieved by special graphitization methods. For instance, all types of solid amorphous carbon sources can be applied to prepare the graphitic carbons through the molten-salt electrochemistry method.