Storage performance of Mg²⁺ substituted NaMnPO₄ with an olivine structure.

ABSTRACT: Sodium manganese phospho-olivine, NaMnPO₄, is considered to be a higher-voltage alternative to the presently used iron-based electrode material, NaFePO₄, for sodium ion batteries. Irrespective of this advantage, the electrochemical performance of NaMnPO₄ is still far from what is desired. Herein we provide the first report on the storage performance of NaMnPO₄ having a structure modified by Mg²⁺ substitution. The Mg-substituted phospho-olivines are prepared on the basis of ionic exchange reactions involving the participation of Mg-substituted KMnPO₄·H₂O dittmarites as structural template. Furthermore, the phosphate particles were covered with a thin layer (up to 5 nm) of activated carbon through ball-milling. The

SUBMITTER: Boyadzhieva T 

PROVIDER: S-EPMC9055941 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature