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<p>Lithium manganate (LMO or LiMn<sub>2</sub>O<sub>4</sub>) powders were synthesized by the solution combustion synthesis method to be applied as positive electrodes of lithium-ion batteries. To synthesize LMO, lithium nitrate (LiNO<sub>3</sub>), manganese nitrate (Mn(NO<sub>3</sub>)<sub>2</sub>), carbohydrazide (CH<sub>6</sub>N<sub>4</sub>O), and deionized water were placed in a beaker until diluted. The solution was then placed in a muffle furnace at 500&#xa0;°C, until it autocombusted in approximately 4&#xa0;min. The properties of the powders were studied using X-ray diffraction (XRD), Scanning Electron Microscope (SEM), and Energy Dispersive Spectroscopy (EDS) characterization techniques. The XRD study data were compared with references from Powder Diffraction File-2 (PDF-2) to indicate that the desired powders were obtained, exhibiting a cubic crystalline structure. SEM images show the powders have grain size in the nanometer range and are homogeneous. EDS studies show that the LMO powders contain the elements manganese and oxygen, with very little or no contamination.</p> Graphical abstract <p></p>

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New synthesis route and characterization of lithium manganese oxide powders for applications in Li-ion batteries

  • 期刊论文

  • 发表日期：

    2026年7月29日

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  • Sael Beltran-Torres,
  • Rafael García-Gutiérrez

摘要

Lithium manganate (LMO or LiMn2O4) powders were synthesized by the solution combustion synthesis method to be applied as positive electrodes of lithium-ion batteries. To synthesize LMO, lithium nitrate (LiNO3), manganese nitrate (Mn(NO3)2), carbohydrazide (CH6N4O), and deionized water were placed in a beaker until diluted. The solution was then placed in a muffle furnace at 500 °C, until it autocombusted in approximately 4 min. The properties of the powders were studied using X-ray diffraction (XRD), Scanning Electron Microscope (SEM), and Energy Dispersive Spectroscopy (EDS) characterization techniques. The XRD study data were compared with references from Powder Diffraction File-2 (PDF-2) to indicate that the desired powders were obtained, exhibiting a cubic crystalline structure. SEM images show the powders have grain size in the nanometer range and are homogeneous. EDS studies show that the LMO powders contain the elements manganese and oxygen, with very little or no contamination.

Graphical abstract