Enhanced stability of vanadium-doped Li_1.2Ni_0.16Co_0.08Mn_0.56O₂ cathode materials for superior Li-ion batteries.

ABSTRACT: Lithium-manganese-based cathode materials have attracted much attention due to its high specific capacity, but the low initial coulomb efficiency, poor rate performance and voltage attenuation during cycling limit its application. In this work, Li_1.2Ni_0.16Co_0.08Mn_0.56-x V _x O₂ samples (x = 0, 0.005, 0.01, 0.02, 0.05) were prepared using the sol-gel method, and the effects of different V⁵⁺ contents on the structure, valence state, and electrochemical performance of electrode materials were investigated. The results show that the introduction of high-valence V⁵⁺ in cathode materials can reduce partial Mn⁴⁺ to active Mn³⁺ ions for charge conservation, which not on

SUBMITTER: Zhou M 

PROVIDER: S-EPMC9667372 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature