Doped-Li1+xV3O8 as cathode materials for lithium-ion batteries: A mini review.

• Substitution ions can affect the lattice constants, grain size and morphology. • Doping sites include Li, V, O sites, cation and anion co-doping, interlayer doping. • Ions-doping improves the diffusion coefficient and the electronic conductivity. • Ions-doping is an important trend for the long-term development of Li 1+ x V 3 O 8. Compared with other materials, monoclinic Li 1+ x V 3 O 8 as the promising cathode includes many strong points, such as high theoretical capacity, abundant raw materials, safety characteristic and low environmental impact. However, the primary problems facing the development of Li 1+ x V 3 O 8 for energy storage devices are poor cycling performance, low rate capability and short service life. Recently, many researches have taken various measures to overcome these shortcomings. In this mini-review, we summarized the recent developments of Li 1+ x V 3 O 8 and focus on the improving of Li 1+ x V 3 O 8 by ions-doping, which is deemed to a significant manner to improve the electrochemical performances of Li 1+ x V 3 O 8. [ABSTRACT FROM AUTHOR]