Layered Li2O·2B2O3-coated Li[Li0.2Mn0.54Ni0.13Co0.13]O2 materials were synthetized.
The electrochemical properties were enhanced significantly by Li2O·2B2O3 coating.
The structure stability of materials could be increased by Li2O·2B2O3 coating.
Li2O·2B2O3-coated sample possessed superior electrochemical property.