重質油前驅物研製超級電容用碳材之技術開發

從重質油與瀝青／焦油經改質為高單價之碳材，藉以提升其附加價值，提高公司競爭力，日益受到廣泛重視，是目前世界各能源公司努力探討的領域。碳材在儲能材料上的應用亦日趨廣泛，因碳材構造之不同而有不同的儲能應用，如石墨化程度高但比表面積低的碳材，主要應用在鋰離子電池負極材料，而比表面積高但石墨化程度低的多孔性碳材則主要應用於碳系超級電容材料。中油公司在超級電容產品所用活性碳材料方面的研究，除了分析中油不同重油油料也針對不同批次的產品特性，如油料分子量分布、碳分子數目範圍、以及氮、硫殘餘量進行分析。另外，對不同重油油料所合成出來的瀝青進行其物理性質分析，如碳／氫比、晶相微結構、軟化點、介相含量及芳香烴含量。中油將進一步篩選合適的進料作為生產碳系超級電容材料的前驅物，整合電容相關產業之上游原料、中游電極塗佈及下游電容組裝業者，藉以提升電容器產業與相關產品應用之發展。

關鍵字

前驅物；高比表面積碳材；超級電容

並列摘要

Many energy companies put lots of efforts to modify heavy oil and petroleum pitch or coal tar to obtain a high value carbon material for the energy application, especially in the field of energy storage. Carbon materials are now widely used for the energy storage due to the different structure. For example, a carbon material with high degree of graphitization but a low surface area is mainly used as the anode of the lithium ion battery. A porous carbon material with a high specific surface area but a low degree of graphitization is mainly used in the supercapacitors. A study of Chinese Petroleum Corporation (CPC) on the carbon material used for supercapacitor products, not only analyzes different heavy fuel oils as the feedstocks but also diverse batches of oil-product characteristics, such as molecular weight distribution, the number range of carbon molecular as well as the residual amount of nitrogen and sulfur. Moreover, the synthesized pitches from different heavy oils are characterized on their physical properties, such as C/H ratio, phase microstructure, softening point, meso-phase content, and aromatics content. Furthermore, as an upstream raw material supplied, CPC will choose an appropriate feedstock as a precursor for the carbon-based supercapacitor production in order to integrate midstream industries of the electrode coating, and downstream industries of capacitor assembly to speed up the development of a capacitor industry and its related product applications in Taiwan.