To explore novel electrode materials with a high energy density for lithium ion batteries, VOMoO₄/C was successfully synthesized via a simple sol–gel method. VOMoO₄ exhibits excellent electrochemical performance owing to the multi-electron reaction of V and Mo, constructing a competitive material respect to traditional graphite anode material. At a current density of 0.2 A g⁻¹, the VOMoO₄ sample electrode delivers a high specific capacity of over 830 mA h g⁻¹ after 250 cycles. Moreover, the VOMoO₄ sample shows high and stable capability even at an extreme current density of 10 A g⁻¹. Using CV, EIS and V/I methods, we discussed the origin of the higher reversible cycling capacity and superior rate performance. To explore the reversible discharge/charge process, using In-situ XRD (X-ray diffraction) and Ex-situ XPS (X-ray photoelectron spectroscopy) experimental results, we discuss the complex conversion reaction mechanism of VOMoO₄ in detail for the first time. Due to the multi-electron reaction of V and Mo, VOMoO₄ reversibly transfers a total of 9 mol Li⁺ during the reversible insertion/extraction process, providing a high specific capacity of 1062.9 mA h g⁻¹. Considering its superior high reversible capacity, long-term cycling stability and outstanding rate capability, VOMoO₄/C is an ideal candidate as an alternative to traditional graphite anode material for lithium ion batteries.

为了探索锂离子电池具有高能量密度的新型电极材料，通过简单的溶胶-凝胶法成功合成了VOMoO ₄ / C。VOMoO ₄由于V和Mo的多电子反应而具有出色的电化学性能，从而构成了与传统石墨阳极材料相比具有竞争力的材料。在0.2 A g ^-1的电流密度下，VOMoO ₄样品电极在250个循环后可提供超过830 mA h g ^-1的高比电容。此外，即使在10 A g ^-1的极端电流密度下，VOMoO ₄样品也显示出高而稳定的性能。使用CV，EIS和V / I方法，我们讨论了更高的可逆循环容量和出色的速率性能的起源。为了探索可逆放电/充电过程，利用原位XRD（X射线衍射）和异位XPS（X射线光电子能谱）实验结果，我们首先详细讨论了VOMoO ₄的复杂转化反应机理。时间。由于V和Mo的多电子反应，VOMoO ₄在可逆的插入/萃取过程中可逆地转移了总计9 mol Li ⁺，从而提供了1062.9 mA h g ^-1的高比容量。考虑到其卓越的高可逆容量，长期循环稳定性和出色的倍率功能，VOMoO ₄/ C是替代锂离子电池传统石墨阳极材料的理想选择。