Abstract—

V₂O₅ thin layers are electrodeposited on a stainless steel (Type 18N12Kh9T) anode from an aqueous metavanadate solution. The oxide deposits are subjected to thermal treatment at 300 or 500°C and tested in a redox reaction with lithium. The findings are compared to the behavior of similar deposits obtained from a vanadium oxysulfate solution. The use of prepared deposits in thin-film lithium batteries is discussed. The physicochemical and structural properties and surface morphology of synthesized materials are investigated using X-ray diffraction, IR absorption spectroscopy, atomic force microscopy, and thermal analysis. In comparison to coarse-grain deposits obtained in metavanadate solutions, deposits formed in vanadium oxysulfate solutions exhibit better adhesion to a substrate due to their branched structure. To use the V₂O₅ deposited from metavanadate solution in lithium batteries, new ways for modification of the deposit surface morphology must be developed. The coarse-grain structure of V₂O₅ can be broken if electrodeposition is carried out in the presence of Co²⁺ ions.

中文翻译：

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钒酸盐溶液中电合成的V 2 O 5：与锂的氧化还原反应中的物理化学和结构性质及其电化学转变的特性

摘要—

V ₂ O ₅从偏钒酸水溶液将薄层电沉积在不锈钢（18N12Kh9T型）阳极上。将氧化物沉积物在300或500℃下进行热处理，并在与锂的氧化还原反应中进行测试。将这些发现与从硫酸氧钒溶液中获得的类似沉积物的行为进行了比较。讨论了制备的沉积物在薄膜锂电池中的使用。使用X射线衍射，IR吸收光谱，原子力显微镜和热分析研究了合成材料的理化和结构性质以及表面形态。与在偏钒酸盐溶液中获得的粗颗粒沉积物相比，在硫酸氧钒溶液中形成的沉积物由于其支链结构而对基材具有更好的附着力。使用V ₂从偏钒酸溶液沉积在锂电池中的O ₅，必须开发出改变沉积物表面形态的新方法。如果在Co ²⁺离子存在下进行电沉积，则V ₂ O ₅的粗晶粒结构可能会破裂。