ACTIVE ELECTRODE MATERIAL WITH OXIDE LAYERS ON MULTIELEMENT BASE AND METHOD OF PRODUCTION THEREOF Russian patent published in 2008 - IPC H01M4/48 

FIELD: physics.

SUBSTANCE: invention concerns active electrode material containing layer of multicomponent oxide coating, method of production thereof and electrode containing the said electrode material. Also, invention concerns electrochemical device, preferentially lithium secondary battery, including the aforesaid electrode. According to invention, active electrode material contains (a) particles of lithium-containing compound oxide(s) providing lithium intercalation/deintercalation; and (b) layer of multicomponent oxide coating partially or completely produced on particle surfaces of lithium-containing compound oxide(s) and containing compound presented by the following formula, i.e. Al_1-aP_aX_bO_4-b where X is element-halogen, 0<a<1, and 0 <b<1.

EFFECT: improved structural stability and thermal safety, high capacity, long service life as well as superb safety of electrochemical device.

10 cl, 2 dwg, 1 tbl, 6 ex