1. 毕业设计（论文）的内容和要求
近年来，锂离子电池作为新一代绿色高能电池被人们广泛研究，并已取得很大的发展。与其他充电电池相比，锂离子电池具有电压高、比能量高、充放电寿命长、无记忆效应、对环境污染小、快速充电、自放电率低等优点，被广泛应用于手机、笔记本电脑、数码相机等电子产品，并逐步走向电动汽车动力领域。低成本、高性能、大功率、长寿命、高安全、环境友好是锂离子电池的发展方向。
铁基电极材料具有价格低廉、来源丰富、无毒无害等优点而倍受人们的关注。1997年，Padhi等研究发现橄榄石结构的LiFePO4，在原料来源、原料成本、环保性能、高温稳定性和化学稳定性方面也都相当好，可用作锂离子电池正极材料。与LiFePO4相比，对FePO4的研究较少，FePO4是LiFePO4的脱锂产物，在整个充放电过程中两者共存。
本论文要求查阅大量文献和相关资料，了解FePO4的结构与性能，以及制备方法与条件。准备采用一种新型的制备方法-微反应器法制备FePO4，并通过一系列的实验摸索出制备过程中的一些最佳的工艺条件。撰写出论文，并答辩。2. 参考文献
[1] Arroyo-de Dompablo, M. E., J. M. Gallardo-Amores U. Amador, Lithium Insertion in the High-Pressure Polymorph of FePO4[J]. Electrochemical and Solid-State Letters, 8, A564. [2] Delacourt, C., P. Poizot, D. Bonnin C. Masquelier, Lithium-Insertion Mechanism in Crystalline and Amorphous FePO4nH2O[J]. Journal of The Electrochemical Society, 156, A595. [3] Fedorkov, A., H.-D. Wiemhfer, R. Oriňkov, A. Oriňk D. Kaniansky , Surface modification of FePO4 particles with conductive layer of polypyrrole[J]. Solid State Sciences, 12, 924-928. [4] Hong, Y.-S., K. S. Ryu, Y. J. Park, M. G. Kim, J. M. Lee S. H. Chang, Amorphous FePO4 as 3 V cathode material for lithium secondary batteries. Journal of Materials Chemistry, 12, 1870-1874. [5] Kahoul, A. A. Hammouche, Electrochemical performances of FePO4-positive active mass prepared through a new solgel method[J]. Ionics, 16, 105-109. [6] Kim, S. W., J. Ryu, C. B. Park K. Kang, Carbon nanotube-amorphous FePO4 core-shell nanowires as cathode material for Li ion batteries[J]. Chem Commun (Camb), 46, 7409-11. [7] Lee, Y. J. A. M. Belcher , Nanostructure design of amorphous FePO4 facilitated by a virus for 3 V lithium ion battery cathodes[J]. Journal of Materials Chemistry, 21, 1033. [8] Li, C.-L. Z.-W. Fu , Kinetics of Li Ion Diffusion into FePO4and FePON Thin Films Characterized by AC Impedance Spectroscopy[J]. Journal of The Electrochemical Society, 154, A784. [9] Marx, N., L. Bourgeois, D. Carlier, A. Wattiaux, E. Suard, F. Le Cras L. Croguennec , Iron(III) phosphates obtained by thermal treatment of the Tavorite-type FePO4.H2O material: structures and electrochemical properties in lithium batteries[J]. Inorg Chem, 51, 3146-55. [10] Minakshi, M., Lithium intercalation into amorphous FePO4 cathode in aqueous solutions[J]. Electrochimica Acta, 55, 9174-9178. [11] Okada, S., T. Yamamoto, Y. Okazaki, J.-i. Yamaki, M. Tokunaga T. Nishida , Cathode properties of amorphous and crystalline FePO4[J]. Journal of Power Sources, 146, 570-574. [12] Prosini, P. P., M. Lisi, S. Scaccia, M. Carewska, F. Cardellini M. Pasquali , Synthesis and Characterization of Amorphous Hydrated FePO4 and Its Electrode Performance in Lithium Batteries[J]. Journal of The Electrochemical Society, 149, A297. [13] Yin, Y., Y. Hu, P. Wu, H. Zhang C. Cai , A graphene-amorphous FePO4 hollow nanosphere hybrid as a cathode material for lithium ion batteries[J]. Chem Commun (Camb), 48, 2137-9. [14] 唐昌平,应皆荣,姜长印,万春荣,李维,雷敏,锂离子电池电极材料磷酸铁的研究进展[J].中国有色金属学报,2005,15,25-29. [15] 袁静楠,不同晶型磷酸铁的制备及与磷酸亚铁锂间的相互转换关系[D].郑州大学,2012,5. |
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