| Optimizing pyrolysis of resin carbon for anode of lithium ion batteries |
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| 作者姓名： | 郭华军 李新海 张新明 王志兴 彭文杰 张宝 |
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| 作者单位： | School of Metallurgical Science and Engineering Central South University Changsha 410083 China，School of Metallurgical Science and Engineering Central South University Changsha 410083 China，School of Materials Science and Engineering Central South University Changsha 410083 China，School of Metallurgical Science and Engineering Central South University Changsha 410083 China，School of Metallurgical Science and Engineering Central South University Changsha 410083 China，School of Metallurgical Science and Engineering Central South University Changsha 410083 China |
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| 摘 要： | 1INTRODUCTION Lithiumionbatterieshaveattractedworldwide attentionandbeendevelopedrapidlyduetotheirhighenergydensity,goodcharge dischargeper formancesandlongcyclelife14].Theseoutstand ingpropertiesresultfromtheuseofcarbonmateri alsasanodeinsteadoflithiummetal.However,thespecificcapacityofcarbonmaterialsisfar smallerthanthatoflithiummetal(3670mA·h/g).Muchefforthasbeenfocusedonimprovingca pacityofcarbonanodesduringthepastfew years57].Recentworkindicatedthatdisorderedcar bons,obtainedbypy…
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| 收稿时间： | 20 July 2005 |
| 修稿时间： | 20 October 2005 |
Optimizing pyrolysis of resin carbon for anode of lithium ion batteries |
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| GUO Hua-jun,LI Xin-hai,ZHANG Xin-ming,WANG Zhi-xing,PENG Wen-jie,ZHANG Bao.Optimizing pyrolysis of resin carbon for anode of lithium ion batteries[J].Journal of Central South University of Technology,2006,13(1):58-62. |
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| Authors: | GUO Hua-jun LI Xin-hai ZHANG Xin-ming WANG Zhi-xing PENG Wen-jie ZHANG Bao |
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| Affiliation: | (1) School of Metallurgical Science and Engineering, Central South University, 410083 Changsha, China;(2) School of Materials Science and Engineering, Central South University, 410083 Changsha, China |
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| Abstract: | Pyrolytic resin carbon anode for lithoum ion batteries was prepared from thermosetting phenolic resin. Pyrolysis of the primary
phenolic resin and the dewatered one was studied by thermal gravimetric analysis. Structures and characteristics of the carbon
materials were determined by X-ray diffraction, Brunauer-Emmer-Teller surface area analysis and electrochemical measurements.
With the increase of pyrolyzing temperature and soaking time, the resin carbon material has larger crystallite sizes of L
c and L
a, lower specific surface area, smaller irreversible capacity and higher initial coulombic efficiency. The pyrolyzing temperature
and soaking time are optimized to be 1 050 °C and 2 h. The resin carbon anode obtained under the optimum conditions shows
good electrochemical performances with reversible capacity of 387 mA · h/g and initial coulombic efficiency of 69.1%.
Foundation item: Project (50302016) supported by the National Natural Science Foundation of China; project (2005037698) supported by Postdoctoral
Science Foundation of China |
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| Keywords: | lithium ion battery carbon phenolic resin anode |
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