Polypyrrole incorporated a novel ZnMn2O4 cathode for high-energy quasi-solid state zinc-ion battery

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Materials Science: Materials in Electronics Pub Date : 2024-08-12 DOI:10.1007/s10854-024-13233-9

D. R. P. Rajarathnam, K. Sundaramurthy, S. Vadivel, Khalid Mashay Al-Anazi

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Abstract

A reliable and high-rate cathode is needed to study rechargeable zinc-ion batteries (ZIBs). Spinel ZnMn₂O₄ (ZMO) has special benefits that make it an attractive cathode material for ZIBs, including high availability, cheap cost, and environmental friendliness. However, because of its poor electronic conductivity and significant volume change throughout the charge/discharge process, it significantly limits both rate capability and lifespan. In this article, high-performance cathodes for rechargeable ZIBs are made using a new conductive polymer that is composed of ZMO and polypyrrole (ZMOP). The ZMOP cathode performs as predicted, with a huge specific capacity (213 mA h⁻¹ at 0.1 Ag⁻¹), good rate capability (119 mAhg⁻¹ at 2 Ag⁻¹), and exceptional durability over time (93% retention and 99.4% columbic efficiency after 2000 cycles). Additionally, quasi-solid-state ZIBs are created using an energy density (206 W h kg⁻¹), and power density (0.18 kW kg⁻¹).

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聚吡咯与新型 ZnMn2O4 正极的结合，用于高能量准固态锌离子电池

研究可充电锌离子电池（ZIB）需要一种可靠的高倍率阴极。尖晶石 ZnMn2O4（ZMO）具有特殊的优点，使其成为一种极具吸引力的锌离子电池阴极材料，包括高可用性、低成本和环保性。然而，由于其电子导电性较差，且在整个充放电过程中体积变化较大，因此大大限制了其速率能力和使用寿命。本文使用一种由 ZMO 和聚吡咯（ZMOP）组成的新型导电聚合物，为可充电 ZIB 制作了高性能阴极。ZMOP 阴极的性能符合预期，具有巨大的比容量（0.1 Ag-1 时为 213 mA h-1）、良好的速率能力（2 Ag-1 时为 119 mAhg-1）和超长的耐久性（2000 次循环后保持率为 93%，电容效率为 99.4%）。此外，还利用能量密度（206 W h kg-1）和功率密度（0.18 kW kg-1）制造出准固态 ZIB。

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来源期刊

Journal of Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.

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