采用高能球磨方法将经过提纯处理的天然FeS2微米粉体制备了纳米粒子,用SEM、TEM、XRD等测试手段对不同球磨时间的FeS2粉体形貌、晶相结构和粒径尺寸进行了表征,并分析了FeS2正极材料的LiSi/FeS2热电池性能.结果表明:随着球磨时间的延长,FeS2的晶粒尺寸逐渐减小,晶相结构没有变化,当球磨时间为30 h时,粒径最小约45 nm.用不同粒径的FeS2粉体装成LiSi/FeS2热电池,分别以0.8 A/cm2和0.2 A/cm2进行单体电池恒流放电性能测试,同时施加脉冲电流进行电池内阻的测试,纳米级FeS2的热电池放电性能和电池内阻分别优于微米级FeS2热电池性能指标.
参考文献
| [1] | 陈威宏,杨少华,孟锦宏,曹晓晖,马继利.热电池FeS2正极丝网印刷薄膜化制备研究[J].电源技术,2013(02):226-227,233. |
| [2] | Miles MH. .Exploration of molten hydroxide electrochemistry for thermal battery applications[J].Journal of Applied Electrochemistry,2003(11):1011-1016. |
| [3] | 苑晓宇,马伟民,闻雷,杨化仁.热电池正极材料的研究进展[J].陶瓷学报,2010(04):663-669. |
| [4] | 王大刚,范力仁.锂电池正极材料FeS_2制备研究进展[J].广东化工,2012(02):90-91,69. |
| [5] | 郑国源,龙飞,马浩,吴一,邹正光.表面活性剂对合成黄铁矿型FeS2的影响研究[J].人工晶体学报,2013(01):149-154. |
| [6] | 杨兆堂,刘效疆,冯秀丽,杨潇薇.水热合成黄铁矿型FeS2微纳粉体及其在热电池中的应用[J].人工晶体学报,2013(09):1896-1900,1907. |
| [7] | Qian XF.;Xie Y.;Qian YT.;Li YD. .The synthesis and morphological control of nanocrystalline pyrite nickel disulfide and cobalt disulfide[J].Materials Chemistry and Physics,2000(1):97-99. |
| [8] | Qian XF.;Wang C.;Tang KB.;Xie Y.;Qian YT.;Zhang XM. .Solvent-thermal preparation of nanocrystalline pyrite cobalt disulfide[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):110-112. |
| [9] | Qian Xuefeng;Xie Yi;Qian Yitai .Solventothermal synthesis and morphological control of nanocrystalline FeS_2[J].Materials Letters,2001(2):109-111. |
| [10] | T.B. Kim;W.H. Jung;H.S. Ryu .Electrochemical characteristics of Na/FeS_2 battery by mechanical alloying[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):304-307. |
| [11] | J.P.Eymery;F.Ylli .Study of a mechanochemical transformation in iron pyrite[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2000(1/2):306-309. |
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