全文总字数：4878字
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。
Li/S电池具有极高的理论比容量（1675 mAh g-1），储量丰富，对环境友好等优点，然而硫正极及其放电产物硫化锂(Li2S)均不导电(10-27 S m-1)，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(10-3 S m-1 vs 10-27 S m-1)，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. 实验内容和要求
1. 了解锂离子电池的工作原理、分类以及各类优缺点；2. 掌握锂离子电池制备方法，能够独立设计实验方案；3. 掌握先进的表征技术，学会使用分析软件； 4. 熟练掌握英文文献查寻方法与阅读。
3. 参考文献
(1) Wu, J.; Shi, X.; Song, W.; Ren, H.; Tan, C.; Tang, S.; Meng, X. Hierarchically porous hexagonal microsheets constructed by well-interwoven MCo2S4 (M = Ni, Fe, Zn) nanotube networks via two-step anion-exchange for high-performance asymmetric supercapacitors. Nano Energy 2018, 45, 439-447. (2) Jiang, J.; Liu, J. P.; Huang, X. T.; Li, Y. Y.; Ding, R. M.; Ji, X. X.; Hu, Y. Y.; Chi, Q. B.; Zhu, Z. H. General synthesis of large-scale arrays of one-dimensional nanostructured Co3O4 directly on heterogeneous substrates. Cryst. Growth Des. 2010, 10, 70-75. (3) Hu, X.; Wang, R.; Sun, P.; Xiang, Z.; Wang, X. Tip-welded ternary FeCo2S4 nanotube arrays on carbon cloth as binder-free electrocatalysts for highly efficient oxygen evolution. ACS Sustain. Chem. Eng. 2019, 7, 19426-19433. (4) Wei, J.; Su, H.; Qin, C.; Chen, B.; Zhang, H.; Wang, J. Multifunctional Co9S8 nanotubes for high-performance lithium-sulfur batteries. J. Electroanal. Chem. 2019, 837, 184-190. (5) Chen, L.; Xie, X.; Zhang, Z.; Kong, X.; Liang, S.; Pan, A. A one-pot synthesis of hetero-Co9S8NiS sheets on graphene to boost lithium-sulfur battery performance. Inorg. Chem. Front. 2020. (6) Chen, L.; Wang, J.; Ren, Y.; Zeng, W. N‐Doped graphene embellished with Co9 S8 enable advanced sulfur cathode for high-performance lithium-sulfur batteries. Int. J. Energ. Res. 2020, 44, 4961-4968. (7) Sun, W.; Li, Y.; Liu, S.; Guo, Q.; Zhu, Y.; Hong, X.; Zheng, C.; Xie, K. Catalytic Co9S8 decorated carbon nanoboxes as efficient cathode host for long-life lithium-sulfur batteries. Nano Res. 2020. (8) Zhang, C. Y.; Lu, Z. W.; Wang, Y. H.; Dai, Z.; Zhao, H.; Sun, G. Z.; Lan, W.; Pan, X. J.; Zhou, J. Y.; Xie, E. Q. Cooperative chemisorption of polysulfides via 2D hexagonal WS2-rimmed Co9S8 heterostructures for lithium-sulfur batteries. Chem. Eng. J. 2019, 123734. (9) Manthiram, A.; Fu, Y.; Chung, S.; Zu, C.; Su, Y. Rechargeable lithium-sulfur batteries. Chem. Rev. 2014, 114, 11751-11787.(10) You, H.; Shi, M.; Hao, J.; Min, H.; Yang, H.; Liu, X. A spongy mesoporous titanium nitride material as sulfur host for high performance lithium-sulfur batteries. J. Alloy. Compd. 2020, 823.(11) Eftekhari, A. The rise of lithium-selenium batteries. Sustain. Energy Fuels 2017, 1, 14-29.(12) Zhang, Y.; Guo, Y.; Wang, B.; Wei, Y.; Jing, P.; Wu, H.; Dai, Z.; Wang, M.; Zhang, Y. An integrated hybrid interlayer for polysulfides/selenides regulation toward advanced Li-SeS2 batteries. Carbon 2020, 161, 413-422.(13) Guo, B.; Yang, T.; Du, W.; Ma, Q.; Zhang, L.; Bao, S.; Li, X.; Chen, Y.; Xu, M. Double-walled N-doped carbon@NiCo2S4 hollow capsules as SeS2 hosts for advanced Li-SeS2 batteries. J. Mater. Chem. A 2019, 7, 12276-12282.(14) Chen, T.; Kong, W.; Fan, M.; Zhang, Z.; Wang, L.; Chen, R.; Hu, Y.; Ma, J.; Jin, Z. Chelation-assisted formation of multi-yolk-shell Co4N@carbon nanoboxes for self-discharge-suppressed high-performance Li-SeS2 batteries. J. Mater. Chem. A 2019, 7, 20302-20309.(15) Jin, W.; Li, H.; Zou, J.; Zhang, Q.; Inguva, S.; Zeng, S.; Xu, G.; Zeng, X. Cobalt doped JUC-160 derived functional carbon superstructures with synergetic catalyst effect for Li-SeS2 batteries. Micropor. Mesopor. Mat. 2020, 306.(16) Wang, Y.; Liang, P.; Yang, H.; Li, W.; Wang, Z.; Liu, Z.; Wang, J.; Shen, X. Hollow CoP nanoparticles embedded in Two-Dimensional N-doped carbon arrays enabling advanced Li-SeS2 batteries with rapid kinetics. Mater. Today Energy 2020, 17, 100423.
4. 毕业设计（论文）计划
12.31-1.16 查阅文献，翻译英文文献，开题 2.24-4.28 实验 4.28-5.12 论文中期检查 5.12-5.28 实验总结 5.28-6.9 撰写论文及论文答辩
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