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<p>Developing high-performance and stable anode materials remains a critical challenge in the commercialization of sodium-ion batteries (SIBs). In this study, CoZnCu trimetal layered double oxides (LDOs) are synthesized by calcining the corresponding layered double hydroxides (LDHs) at different dwell times and are evaluated as anodes for sodium-ion batteries (SIBs). Characterization using scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) reveal a highly crystalline Cu<sub>0.44</sub>Zn<sub>0.47</sub>Co<sub>2.49</sub>O<sub>4</sub> phase with a nanosheet-assembled nanosphere morphology. Galvanostatic charge–discharge (GCD) and cyclic voltammetry (CV) tests show that the material exhibits higher specific capacity, good stability, and significant pseudocapacitance, indicating its great potential for application in SIBs. These findings pave the way for new opportunities in anode materials for SIBs and other energy storage devices.</p>

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Investigation into CoZnCu LDO derived from CoZnCu LDH and their application in sodium-ion batteries

  • 期刊论文

  • 发表日期：

    2026年2月21日

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  • Zefei Zhou,
  • Cheng Chi,
  • Yikang He,
  • Xiaoyi Liu,
  • Pin Ma

摘要

Developing high-performance and stable anode materials remains a critical challenge in the commercialization of sodium-ion batteries (SIBs). In this study, CoZnCu trimetal layered double oxides (LDOs) are synthesized by calcining the corresponding layered double hydroxides (LDHs) at different dwell times and are evaluated as anodes for sodium-ion batteries (SIBs). Characterization using scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) reveal a highly crystalline Cu0.44Zn0.47Co2.49O4 phase with a nanosheet-assembled nanosphere morphology. Galvanostatic charge–discharge (GCD) and cyclic voltammetry (CV) tests show that the material exhibits higher specific capacity, good stability, and significant pseudocapacitance, indicating its great potential for application in SIBs. These findings pave the way for new opportunities in anode materials for SIBs and other energy storage devices.