Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi_0.3Cu_0.1Fe_0.2Mn_1.4O₄, as 5 V Positive Electrode Material.

ABSTRACT: The suitability of multication doping to stabilize the disordered Fd3̅m structure in a spinel is reported here. In this work, LiNi_0.3Cu_0.1Fe_0.2Mn_1.4O₄ was synthesized via a sol-gel route at a calcination temperature of 850 °C. LiNi_0.3Cu_0.1Fe_0.2Mn_1.4O₄ is evaluated as positive electrode material in a voltage range between 3.5 and 5.3 V (vs Li⁺/Li) with an initial specific discharge capacity of 126 mAh g^-1 at a rate of C/2. This material shows good cycling stability with a capacity retention of 89% after 200 cycles and an excellent rate capability with the discharge capacity reaching 78 mAh g^-1 at a rate of 20C. In opera

SUBMITTER: Sharma P 

PROVIDER: S-EPMC7495482 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature