Study of mesophase pitch-based graphite foam used as anodic materials in lithium ion rechargeable batteries

• Published in: Journal of materials science Vol. 40; no. 5; pp. 1285 - 1287
• Main Authors: JIE YANG, SHEN, Zeng-Min, XUE, Rui-Sheng, HAO, Zhi-Biao
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.03.2005; Springer Nature B.V
• Subjects: Anodes; Applied sciences; Cross-disciplinary physics: materials science; rheology; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Electrode materials; Exact sciences and technology; Fullerenes and related materials; diamonds, graphite; Lithium ions; Materials science; Mesophase; Physics; Rechargeable batteries; Specific materials; Anode; Graphitizing; Electrical properties; Cellular material; Electrode material; Experimental study; X ray diffraction; Precursor; Lithium battery; Optical microscopy; Graphite; Pitch; Mesophase; Manufacturing
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-005-6953-x

It is well known that the performances of lithium ion batteries depend strongly on the microstructures, morphologies and the crystallization degree of meosphase pitch products. Commonly it is difficult to control the MCMBs or mMPCFs to form one certain kind of microstructures. Moreover, the preparation of MCMBs requires complicated separation and expensive purification. As for mMPCFs, fabrication is costly because such process needs special apparatus, also requires the mesophase pitch to have high purity and flowability. However, the carbon foams derived from mesophase pitch are novel material with ultra-high thermal conductivity, and they are rich in the highly oriented filament and ligament. As we know, the orientation of carbon dominates its conductivity, which in turn affects the cyclic properties and capacitance of lithium ion batteries to a large extent. In the present work, we attempt to investigate the mesophase pitch carbon foams heat treated at high temperature as anode materials for lithium ion secondary batteries.