| 锂硫电池过渡金属氧化物/碳/硫正极 |
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| 引用本文： | 黄鹏,王庆杰,陈晓涛,刘富亮,吴宁宁. 锂硫电池过渡金属氧化物/碳/硫正极[J]. 电源技术, 2022, 46(2): 161-164. DOI: 10.3969/j.issn.1002-087X.2022.02.014 |
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| 作者姓名： | 黄鹏 王庆杰 陈晓涛 刘富亮 吴宁宁 |
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| 作者单位： | 贵州梅岭电源有限公司特种化学电源国家重点实验室,贵州遵义563000;航天江南集团有限公司,贵州贵阳550009;贵州梅岭电源有限公司特种化学电源国家重点实验室,贵州遵义563000 |
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| 基金项目： | 贵州省科技计划项目(黔科合基础[2017]1411)。 |
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| 摘 要： | 提出了由金属-有机骨架材料(MOF)衍生的菱形十二面体NiO-NiCo2O4空心多面体结构包覆还原氧化石墨烯(rGO)作为硫载体的设计方案,极性金属氧化物可以有效吸附多硫化物,抑制穿梭效应,空心结构可以有效缓解电极反应过程中的体积变化,rGO的引入可有效提高电极材料的电导率,促进正极硫的充分反应,进而提高硫的利用率,提...
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| 关 键 词： | 锂硫电池正极 MOF衍生物 空心十二面体 极性金属氧化物 |
Transition metal oxide/carbon/sulfur cathode for lithium sulfur battery |
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| HUANG Peng,WANG Qingjie,CHEN Xiaotao,LIU Fuliang,WU Ningning. Transition metal oxide/carbon/sulfur cathode for lithium sulfur battery[J]. Chinese Journal of Power Sources, 2022, 46(2): 161-164. DOI: 10.3969/j.issn.1002-087X.2022.02.014 |
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| Authors: | HUANG Peng WANG Qingjie CHEN Xiaotao LIU Fuliang WU Ningning |
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| Affiliation: | (State Key Laboratory of Advanced Chemical Power Sources,Guizhou Meiling Power Sources Co.,Ltd.,Zunyi Guizhou 563000,China;Aerospace Jiangnan Group Co.,Ltd.,Guiyang Guizhou 550009,China) |
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| Abstract: | The design of a rhombic dodecahedral NiO-NiCo2O4 hollow structure derived from MOF coated with rGO as sulfur carrier was proposed.The polar metal oxides can effectively adsorb polysulfides and inhibit the shuttle effect.The hollow structure can alleviate the volume change during the electrode reaction.The introduction of rGO can improve the conductivity of the electrode,promote the reaction of sulfur in the cathode,and improve the utilization of sulfur and the electrochemical performance.The S/NiO-NiCo2O4-rGO composite materials achieve the discharge specific capacity of 591 mAh/g at 0.5 C after 100 cycles and 365 mAh/g at 1 C after 300 cycles,and the composite materials possess excellent rate performance. |
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| Keywords: | lithium sulfur battery cathode MOF derivatives hollow dodecahedron polar metal oxide |
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