{"title":"Zinc Manganate/Manganic Oxide Bi-Component Nanorod as Excellent Cathode for Zinc-Ion Battery","authors":"Shiyue Ma, Si-Xu Wang, Dong-Shuai Li, Weiliang Liu, M. Ren, Fanyuan Kong, Shoujuan Wang, Yongjao Xia","doi":"10.2139/ssrn.3674206","DOIUrl":null,"url":null,"abstract":"Abstract Rechargeable aqueous zinc-ion batteries (ZIBs) have been receiving much attention because they are cheap, safe, and environment-friendly. However, their application is bottlenecked by limitation in high-capacity cathode and types of materials to achieve satisfactory cyclability. Therefore, developing new cathode materials for rechargeable zinc-ion batteries is essential. Herein, we report promising ZIBs based on metal-organic framework-derived 2-methylimidazole zinc salt (ZIF-8)/Mn2O3 nanocomposites as cathode and zinc as the anode. ZnMn2O4/Mn2O3 bi-component nanorods were synthesized by annealing ZIF-8/MnO2 precursors, which showed a reversible discharge capacity of 230 mAh g–1 at 100 mA g–1 after 120 cycles and a high capacity of 80 mAh g–1 at a large current density of 1000 mA g–1. The superior zinc storage performance is attributed to the synergistic effect between ZnMn2O4 and Mn2O3.","PeriodicalId":18300,"journal":{"name":"MatSciRN: Other Materials Processing & Manufacturing (Topic)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"MatSciRN: Other Materials Processing & Manufacturing (Topic)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3674206","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
Abstract Rechargeable aqueous zinc-ion batteries (ZIBs) have been receiving much attention because they are cheap, safe, and environment-friendly. However, their application is bottlenecked by limitation in high-capacity cathode and types of materials to achieve satisfactory cyclability. Therefore, developing new cathode materials for rechargeable zinc-ion batteries is essential. Herein, we report promising ZIBs based on metal-organic framework-derived 2-methylimidazole zinc salt (ZIF-8)/Mn2O3 nanocomposites as cathode and zinc as the anode. ZnMn2O4/Mn2O3 bi-component nanorods were synthesized by annealing ZIF-8/MnO2 precursors, which showed a reversible discharge capacity of 230 mAh g–1 at 100 mA g–1 after 120 cycles and a high capacity of 80 mAh g–1 at a large current density of 1000 mA g–1. The superior zinc storage performance is attributed to the synergistic effect between ZnMn2O4 and Mn2O3.
摘要可充水锌离子电池(zib)因其廉价、安全、环保等优点而备受关注。然而，它们的应用受到高容量阴极和材料类型的限制，以达到令人满意的可循环性。因此，开发可充电锌离子电池的新型正极材料至关重要。在此，我们报道了基于金属-有机框架衍生的2-甲基咪唑锌盐(ZIF-8)/Mn2O3纳米复合材料作为阴极和锌作为阳极的有前途的ZIBs。通过对ZIF-8/MnO2前驱体的退火，合成了ZnMn2O4/Mn2O3双组分纳米棒，该纳米棒在100 mA g-1下循环120次后具有230 mAh g-1的可逆放电容量，在1000 mA g-1的大电流密度下具有80 mAh g-1的高容量。ZnMn2O4和Mn2O3之间的协同作用是其优异的储锌性能的主要原因。
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