用于 Zn-MnO2 电池的掺杂 NaMnOx 阴极可提高容量和充电性能

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2024-10-22 DOI:10.1016/j.materresbull.2024.113159

Yiğit Akbaş , Necdet Özgür Darıcıoğlu , Tayfur Öztürk

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引用次数: 0

摘要

Zn-MnO2 电池安全、成本低、能量密度高，可与锂离子电池媲美。本研究的重点是为可充电的弱酸性 Zn-MnO2 电池寻找一种新的基于 MnO2 的阴极成分。为此，我们采用了组合方法，使用溅射靶 MnO2、Na0.7MnO2、NiO 和 Bi2O3 在镍基底上沉积了厚膜阴极。在广泛的成分范围内，共生产出 36 种阴极。研究结果表明，采用传统的浆料法开发的阴极具有两个高充电容量区域，一个以 Bi0.02Na0.63Ni0.02Mn0.33Ox 为中心，另一个以 Bi0.04Na0.37Ni0.06Mn0.53Ox 为中心。

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Doped NaMnOx cathodes for Zn-MnO2 batteries for improved capacity and rechargeability

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Doped NaMnOx cathodes for Zn-MnO2 batteries for improved capacity and rechargeability

Zn-MnO₂ batteries are safe, low cost, and have a high energy density comparable to Li-ion batteries. This study focuses on finding a new MnO₂-based cathode composition for rechargeable mildly acidic Zn-MnO₂ battery. For this purpose, a combinatorial approach was used, and thick film cathodes were deposited on nickel substrates using sputter targets MnO₂, Na_0.7MnO₂, NiO and Bi₂O₃. A total of 36 cathodes were produced over a wide compositional range. The study has shown two regions of high rechargeable capacity, one centered on Bi_0.02Na_0.63Ni_0.02Mn_0.33O_x and the other on Bi_0.04Na_0.37Ni_0.06Mn_0.53O_x to be developed as cathodes using conventional slurry method.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.