MAGNESIUM BATTERY HAVING A CATHODE CONTAINING MANGANESE DIOXIDE NANOPARTICLES AS ACTIVE MATERIAL

摘要

A MnO2 electrode active material of high capacity is provided. The high capacity MnO2 has a surface area which is greater than 60 m2/g and the MnO2 is obtained by a process comprising a redox reaction of a Mn (II) salt and permanganate at a reaction temperature less than 30° C. and a pH of 2 to 4. Also provided are a magnesium electrochemical cell having a cathode containing the MnO2 and a rechargeable magnesium battery having a cathode containing the MnO2.

主权项

1. An electrode active material, comprising:
MnO2 nanoparticles having a surface area which is greater than 60 m2/g; wherein the MnO2 nanoparticles are obtained by a process comprising a redox reaction of a Mn (II) salt and permanganate at a reaction temperature less than 30° C. and a pH of 2 to 4.