Method for preparing hard carbon material from anthracite and application of hard carbon material

The invention relates to a method for preparing a hard carbon material from anthracite and application of the hard carbon material. The method for preparing the hard carbon material by using the anthracite comprises the following steps: carrying out ball milling on anthracite blocks in a ball mill t...

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Hauptverfasser: ZHANG YINGJIE, YOU DAN, DONG PENG, YANG WENHAO, JANG EUI-YOUNG, LI XUE, ZHAO JINBAO, YANG CHUNMAN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to a method for preparing a hard carbon material from anthracite and application of the hard carbon material. The method for preparing the hard carbon material by using the anthracite comprises the following steps: carrying out ball milling on anthracite blocks in a ball mill to obtain coal powder, and carrying out heteroatom doping in a miscellaneous original atmosphere at a certain temperature to obtain miscellaneous raw coal powder; carrying out carbon deposition treatment on the miscellaneous raw coal powder subjected to ball milling in a carbon hydrocarbon atmosphere to obtain compact carbon; and carrying out high-temperature carbonization on the obtained compact carbon in an inert atmosphere to obtain the hard carbon material. According to the method, by introducing heteroatoms and carbon deposition treatment, the yield of the hard carbon material prepared from anthracite is increased, the carbon layer spacing can be increased, charge transfer is promoted, the mutual reaction betwe