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<p>Nowadays, electrochemical energy storage field attracts more and more researchers to immerse themselves in the study which mainly focuses on the design of flexible electrode materials. Bimetallic oxide materials which benefit from their abundant redox valence states and theoretical capacitance are widely investigated for supercapacitors, meanwhile, layered hydroxides possess unique layer structure which provide abundant active sites and ion transport channel. Therefore, this work presents the compositing preparation of nickel-manganese bimetallic oxide with layered hydroxides and the investigation of the electrochemical performance. The Ni<sub>6</sub>MnO<sub>8</sub>/Co(OH)<sub>x</sub> hybrid micro-nanostructure electrode material possesses a specific capacitance of 2693.8&#xa0;F/g at the current density of 1&#xa0;A/g. The assembled supercapacitor Ni<sub>6</sub>MnO<sub>8</sub>/ Co(OH)<sub>x</sub> //AC shows energy density of 60.83 Wh/kg and a power density of 2664.1&#xa0;W/kg at a current density of 1&#xa0;A/g, and excellent long term cycling ability (the capacity retention of 97%, and the charging/discharging efficiency of 96.1%, 10000 cycles). These characteristics provide better situating the power supply in the broader application scenarios of flexible electronics, such as smart textiles, embedded into garments to create interactive sportswear capable of gesture recognition and activity tracking.</p>

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Ni6MnO8/Co(OH)x hybridstructure for high-performance flexible supercapacitors

  • 期刊论文

  • 发表日期：

    2026年7月3日

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  • Wei Chen,
  • Zheng Li,
  • Siqi Peng,
  • Li Xiao,
  • Tianlong Liu

摘要

Nowadays, electrochemical energy storage field attracts more and more researchers to immerse themselves in the study which mainly focuses on the design of flexible electrode materials. Bimetallic oxide materials which benefit from their abundant redox valence states and theoretical capacitance are widely investigated for supercapacitors, meanwhile, layered hydroxides possess unique layer structure which provide abundant active sites and ion transport channel. Therefore, this work presents the compositing preparation of nickel-manganese bimetallic oxide with layered hydroxides and the investigation of the electrochemical performance. The Ni6MnO8/Co(OH)x hybrid micro-nanostructure electrode material possesses a specific capacitance of 2693.8 F/g at the current density of 1 A/g. The assembled supercapacitor Ni6MnO8/ Co(OH)x //AC shows energy density of 60.83 Wh/kg and a power density of 2664.1 W/kg at a current density of 1 A/g, and excellent long term cycling ability (the capacity retention of 97%, and the charging/discharging efficiency of 96.1%, 10000 cycles). These characteristics provide better situating the power supply in the broader application scenarios of flexible electronics, such as smart textiles, embedded into garments to create interactive sportswear capable of gesture recognition and activity tracking.