| abstract |
The substance according to the present invention comprises an oxide comprising at least one element of the group consisting of cobalt (Co), nickel (Ni), manganese (Mn), iron (Fe) and copper (Cu); It has silicon (Si) chemically bonded to the surface of the oxide. The battery according to the present invention is a battery having an electrolyte together with a positive electrode and a negative electrode, wherein the positive electrode is made of cobalt (Co), nickel (Ni), manganese (Mn), iron (Fe), and copper (Cu). An oxide containing at least one of the group consisting of; It contains a material having silicon (Si) that is chemically bonded to the surface of the oxide. |