Attributed to the realization of the multielectron transfers, with a stable 3D framework, Li₉V₃ (P₂O₇)₃(PO₄)₂ is considered an excellent cathode material, which can reversibly extract/insert nearly 5 mol Li. However, the poor intrinsic electronic conductivity and the low lithium diffusion coefficient limited its practical electrochemical ability. Considering the poor intrinsic electronic conductivity of the pristine Li₉V₃(P₂O₇)₃(PO₄)₂ compound, the introduction of one extra electron by replacing V³⁺ with aliovalent Mo⁴⁺ ions increases the concentration of the electronic charge carriers from Li₉V₃(P₂O₇)₃(PO₄)₂ and thus improves the electronic conductivity. At the same time, the larger ionic radius of Mo⁴⁺ leads to the increasement of the cell volume of the Li₉V₃(P₂O₇)₃(PO₄)₂ sample and thus facilitates Li⁺ transport into the structure. As a result, the electrochemical performances of the Li₉V₃(P₂O₇)₃(PO₄)₂ were improved obviously by a small amount of Mo. Especially for the Li₉V_3-xMo_x(P₂O₇)₃(PO₄)₂ (x = 0.02) sample, the electrode present the highest specific capacity herein and an excellent rate performance which is a promising cathode for lithium ion battery application.

Li ₉ V ₃（P ₂ O ₇）₃（PO ₄）₂具有稳定的3D框架，归因于多电子转移的实现，被认为是一种极好的阴极材料，可以可逆地提取/插入近5 mol Li。然而，不良的固有电子电导率和低的锂扩散系数限制了其实际的电化学能力。考虑到原始的Li ₉ V ₃（P ₂ O ₇）₃（PO ₄）_2的固有电子导电性差化合物中，通过用铝价Mo ⁴⁺离子取代V ³⁺引入一个额外的电子，增加了Li ₉ V ₃（P ₂ O ₇）₃（PO ₄）_2中电子载流子的浓度，从而提高了电导率。同时，较大的Mo ⁴⁺离子半径导致Li ₉ V ₃（P ₂ O ₇）₃（PO ₄）₂样品的电池体积增加，从而有利于Li ⁺运输到结构中。结果，少量的Mo明显改善了Li ₉ V ₃（P ₂ O ₇）₃（PO ₄）₂的电化学性能。特别是对于Li ₉ V _3-x Mo _x（P ₂ O ₇）₃（PO ₄）₂（x = 0.02）样品，该电极在此处具有最高的比容量和出色的倍率性能，是锂离子电池应用中有希望的阴极。