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学科主题物理化学
Improvement of electrochemical properties of PTMA cathode by using carbon blacks with high specific surface area
Liu, C. M.; Chen, J.; Wang, F. Q.; Yi, B. L.; Chen J(陈剑)
关键词Organic Radical Battery Ptma Carbon Black Cathode
刊名RUSSIAN JOURNAL OF ELECTROCHEMISTRY
2012-11-01
ISSN1023-1935
DOI10.1134/S1023193512110110
48期:11页:1052-1057
收录类别SCI
文章类型Article
部门归属DNL03
项目归属DNL03T2
产权排名1,1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
关键词[WOS]ORGANIC RADICAL BATTERY ; RECHARGEABLE BATTERIES ; ACTIVE MATERIAL ; FUEL-CELL ; ELECTRODE ; POLYMER ; TEMPO ; POLYACETYLENE ; PERFORMANCE ; MOIETIES
英文摘要A PTMA (poly(4-methacryloyloxy-2,2,6,6-tetramethyl-piperidine-N-oxyl)) electrode with high energy density is prepared with Black Pearl 2000 (BP-2000). For comparisons, vapor grown carbon fiber (VGCF) and acetylene black (AB) are also employed to fabricate the PTMA-electrodes. The electrochemical properties of the electrode are improved obviously by employing BP-2000. The specific capacity of the PTMA-BP electrode based on the mass of PTMA is 26.7% larger than that of the PTMA-VGCF and PTMA-AB electrodes at a 1 C rate. At higher discharge rates, the polarization degree of the Li/PTMA-BP cell is the minimum one. At a discharge rate of 50 C, the specific capacity of the PTMA-BP electrode is 104.9 mA h g(-1), and is 27.6 and 16.7% larger than that of the PTMA-VGCF and PTMA-AB electrodes, respectively. Besides, the discharge plateau of the Li/PTMA-BP cell is 3.35 V, and is 0.03 and 0.13 V higher than that of the Li/PTMA-AB and Li/PTMA-VGCF cells, respectively. The larger specific capacity of BP-2000 and the improved electrochemical kinetics of PTMA at the surface of BP carbon, resulted from the larger surface area of BP-2000, are the main factors for improving the capacity and rate capability of the PTMA-electrode. The high specific surface area of BP-2000 is also beneficial to the thorough contact of PTMA with BP carbon, resulting in the improved conductivity of the PTMA-BP composites. The cycling performance of the PTMA-BP electrode is also satisfied.
语种英语
WOS记录号WOS:000311332800003
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/118071
专题中国科学院大连化学物理研究所
通讯作者Chen J(陈剑)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Lab Adv Rechargeable Batteries, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Liu, C. M.,Chen, J.,Wang, F. Q.,et al. Improvement of electrochemical properties of PTMA cathode by using carbon blacks with high specific surface area[J]. RUSSIAN JOURNAL OF ELECTROCHEMISTRY,2012,48(11):1052-1057.
APA Liu, C. M.,Chen, J.,Wang, F. Q.,Yi, B. L.,&陈剑.(2012).Improvement of electrochemical properties of PTMA cathode by using carbon blacks with high specific surface area.RUSSIAN JOURNAL OF ELECTROCHEMISTRY,48(11),1052-1057.
MLA Liu, C. M.,et al."Improvement of electrochemical properties of PTMA cathode by using carbon blacks with high specific surface area".RUSSIAN JOURNAL OF ELECTROCHEMISTRY 48.11(2012):1052-1057.
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