1. 毕业设计（论文）的内容和要求
随着电动汽车的普及，传统锂离子电池越来越无法满足人们日益增长的需求，人们迫切期盼下一代新型锂离子电池的出现，这其中锂硫电池（Li/S）以及锂硒电池（Li/Se）都受到充分关注。
然而硫正极及其放电产物硫化锂(Li2S)均不导电，同时由于穿梭效应以及巨大的体积膨胀率，大大限制其电化学性能发挥。
硒正极的导电性能相对硫要出色很多，更有利于电化学反应的进行，而且硒的密度高，Li/Se电池的体积比容量也极具竞争力。
2. 参考文献
[1] Jingrui H , Yingqing O , Yanhong L , et al. FeCo2S4 Nanosheet Arrays Supported on Ni Foam: An Efficient and Durable Bifunctional Electrocatalyst for Overall Water-Splitting[J]. ACS Sustainable Chemistry nanowire cluster arrays as self-supported electrodes[J]. Nanoscale, 5(20):9812.[4] Liu S , Jun S C . Hierarchical manganese cobalt sulfide coreshell nanostructures for high-performance asymmetric supercapacitors[J]. Journal of Power Sources, 2017, 342:629-637.[5] Mentbayeva A, Belgibayeva A, Umirov N, et al. High Performance Freestanding Composite Cathode for Lithium-Sulfur Batteries[J]. Electrochimica Acta. 2016, 217: 242-248.[6] Hierarchically Porous Hexagonal Microsheets Constructed by Well-Interwoven MCo 2 S 4, (M = Ni, Fe, Zn) Nanotube Networks via Two-Step Anion-Exchange for High-Performance Asymmetric Supercapacitors[J]. 2018.[7] Kang W, Deng N, Ju J, et al. A Review of Recent Developments in Rechargeable Lithium-Sulfur Batteries.[J]. Nanoscale. 2016, 8(37).[8] Mikhaylik Y V, Akridge J R. Polysulfide Shuttle Study in The Li/S Battery System[J]. Journal of the Electrochemical Society. 2004, 151(11): A1969-A1976.[9] Ji X, Nazar L F. Advances in Li-S Batteries[J]. Journal of Materials Chemistry. 2010, 20(44): 9821-9826.[10] Guo B , Yang T , Du W , et al. Double-walled N-doped carbon@NiCo2S4 hollow capsules as SeS2 hosts for advanced Li-SeS2 batteries[J]. Journal of Materials Chemistry A, 2019.[11] Chen T , Kong W , Fan M , et al. Chelation-assisted formation of multi-yolkshell Co4N@carbon nanoboxes for self-discharge-suppressed high-performance LiSeS2 batteries[J]. Journal of Materials Chemistry A, 2019, 7.[12] Liu C , Huang X , Wang J , et al. Hollow Mesoporous Carbon Nanocubes: Rigid-Interface-Induced Outward Contraction of Metal-Organic Frameworks[J]. Advanced Functional Materials, 2017, 28(6).[13] He J , Lv W , Chen Y , et al. Direct impregnation of SeS2 into a MOF-derived 3D nanoporous Co-N-C architecture towards superior rechargeable lithium batteries[J]. JOURNAL OF MATERIALS CHEMISTRY. A, 2018.[14] Cui Y , Abouimrane A , Lu J , et al. (De)Lithiation Mechanism of Li/SeSx (x=0-7) Batteries Determined by in Situ Synchrotron X-ray Diffraction and X-ray Absorption Spectroscopy[J]. Journal of the American Chemical Society, 2013.[15] Luo, Chao, Zhu, Yujie, Wen, Yang,et al. Carbonized Polyacrylonitrile-Stabilized SeSx Cathodes for Long Cycle Life and High Power Density Lithium Ion Batteries[J]. Advanced Functional Materials, 24(26):4082-4089.
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