利用二硫化钼(MoS2)在较低电势范围内可逆储锂的现象,采用二硫化铝作为负极材料,和活性炭(AC)正极材料配伍,组装成混合型电化学电容器,在锂基有机系电解液中其电压可高达3.4V.使用XRD和SEM等测试手段对负极材料的物性进行了表征,探讨了负极材料的储能机理,并考察了正负极质量比对负极储锂容量的影响.电化学性能测试结果显示电容器具有较高能量密度和功率密度,分别达到28.7 Wh/kg和1203.4 W/kg,电容器也表现出较好的循环稳定性,在0.4 A/g电流密度下,经1000次循环后容量保持率高达76.6％.
参考文献
| [1] | Chen P C,Shen G Z,Shi Y,et al.Preparation and characterization offlexible asymmetric supercapacitors based on transition-metal-oxide nanowire/single-walled carbon nanotube hybrid thin-film electrodes.ACS Nano,2010,4(8):4403-4411. |
| [2] | An K H,Kim W S,Park Y S,et al.Supercapacitors using singlewalled carbon nanotube electrodes.Adv.Mater,2001,13(5):497-499. |
| [3] | Pell W G,Conway B E.Peculiarities and requirements of asymmetric capacitor devices based on combination of capacitor and battery-type electrodes.J.Power Sources,2004,136(2):334-345. |
| [4] | Sikha G,Popov B N.Performance optimization of a battery-capacitor hybrid system.J.Power Sources,2004,134(1):130-138. |
| [5] | PEI Xiao-Ke,LIN Bi-Zhou,ZHANG Jin-Fei,et al.Synthesis and characterization of MoS2 composites pillared by hydroxy-Fe-Al oligocations.Journal of Inorganic Materials,2005,20(6):1329-1336. |
| [6] | LIANG Hong-Xun,LV Jin-Jun,LIU Wei-Min,et al.Study on self-lubrication ceramic of Y-TZP/MoS2.Journal of Inorganic Materials,2004,19(1):207-213. |
| [7] | LIU Hui-Wen,XUE Qun-Ji.High temperature lubrication of TZP ceramics.Journal of Inorganic Materials,1997,12(5):681-686. |
| [8] | Jacobson A J,Chianelli R R,Whittingham M S.Amorphous molybdenum-disulfide cathodes.J.Electrochem.Soc.,1979,126(12):2277-2278. |
| [9] | Kazuma K,Tomohiko I,Kaoru I,et al.Degradation mechanism due to decomposition of organic electrolyte in Li/MoS2 cells during long cycling.J.Power Sources,1998,70(2):235-239. |
| [10] | Julien C,Sekine T,Balkanski M.Lattice dynamics of lithium intercalated MoS2.SolidState Ionics,1991,48(3/4):225-229. |
| [11] | Fang X P,Hua C X,Guo X W,et al.Lithium storage in commercial MoS2 in different potential ranges.Electrochimica Acta,2012,81(10):155-160. |
| [12] | Xiao J,Wang X J,Yang X Q,et al.Electrochemically induced high capacity displacement reaction of PEO/MoS2/graphene nanocomposites with lithium.Adv.Funct.Mater,2011,21(15):2840-2846. |
| [13] | Dominko R,Ar(c)on D,Mrzel A,et al.Dichalcogenide nanotube electrodes for Li-ion batteries.Adv.Mater,2002,14(21):1531-1534. |
| [14] | Du G D,Guo Z P,Wang S Q,et al.Superior stability and high capacity of restacked molybdenum disulfide as anode material for lithium ion batteries.Chem.Commun.,2010,46(12):1106-1108. |
| [15] | Wang S Q,Li G H,Du G D,et al.Hydrothermal synthesis of molybdenum disulfide for lithium ion battery applications.Chinese Journal of Chemical Engineering,2010,18(6):910-913. |
| [16] | Feng C Q,Ma J,Li H,et al.Synthesis of molybdenum disulfide (MoS2) for lithium ion battery applications.Materials Research Bulletin,2009,44(9):1811-1815. |
| [17] | Murugan A V,Quintin M,Delville M H,et al.Exfoliation-induced nanoribbon formation of poly(3,4-ethylene dioxythiophene)PEDOT between MoS2 layers as cathode material for lithium batteries.J.Power Sources,2006,156(2):615-619. |
| [18] | Chang K,Chen W X.In situ synthesis of MoS2/graphene nanosheet composites with extraordinarily high electrochemical performance for lithium ion batteries.Chem.Commun.,2011,47(3):4252-4254. |
| [19] | Xiao J,Choi D,Cosimbescu L,et al.Exfoliated MoS2 nanocomposite as an anode material for lithium ion batteries.Chem.Mater.,2010,22(16):4522-4524. |
| [20] | Chang K,Chen W X,Ma L.Graphene-like MoS2/amorphous carbon composites with high capacity and excellent stability as anode materials for lithium ion batteries.J.Mater Chem.,2011,21(3):6251-6257. |
| [21] | Chang K,Chen W X.Single-layer MoS2/graphene dispersed in amorphous carbon:towards high electrochemical performances in rechargeable lithium ion batteries.J.Mater Chem.,2011,21(9):17175-17184. |
| [22] | Santa Ana M A,Mirabal N,Benavente E,et al.Electrochemical behavior of lithium intercalated in a molybdenum disulfide-crown ether nanocomposite.Electrochimica Acta,2007,53(4):1432-1438. |
| [23] | Kim I T,Egashira M,Yoshimoto N,et al.Combination of alkalitreated soft carbon and activated carbon fiber electrodes for asymmetric electric double-layer capacitor.Electrochemistry,2012,80(6):415-420. |
| [24] | Ohta T,Kim I T,Egashira M,et al.Effects of electrolyte composition on the electrochemical activation of alkali-treated soft carbon as an electric double-layer capacitor electrode.J.Power Sources.2012,198(10):408-415. |
| [25] | Ni J F,Yang L X,Wang H B,et al.A high-performance hybrid supercapacitor with Li4TisO12-C nano-composite prepared by in situ and ex situ carbon modification.J.Solid State Electrochem.,2012,16(8):2791-2796. |
| [26] | Lee B G,Yoon J R.Preparation and characteristics of Li4Ti5O12 anode material for hybrid supercapacitor.Journal of Electrical Engineering & Technology,2012,7(2):207-211. |
| [27] | Manish C,Gehan A J A.Thin films of fullerene-like MoS2 nanoparticles with ultra-low friction and wear.Nature,2000,407(6801):164-167. |
| [28] | Li J L,Gao F.Analysis of electrodes matching for asymmetric electrochemical capacitor.J.Power Sources,2009,194(2):1184-1193. |
| [29] | Wang H Y,Yoshio M.Performance of AC/graphite capacitors at high weight ratios of AC/graphite.J.Power Sources,2008,177(2):681-684. |
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