ELECTRODE COATED WITH ORGANIC/NON-ORGANIC COMPOSITE POROUS LAYER AND ELECTROCHEMICAL DEVICE CONTAINING IT Russian patent published in 2008 - IPC H01M4/02 H01M10/40 

FIELD: electricity, electro-chemistry.

SUBSTANCE: invention is related to electrode, its manufacturing method and electro-chemical device with this electrode. According to the invention, electrode is suggested, which contains the first organic/non-organic composite porous cover layer, which is formed on its surface, where the first cover layer includes non-organic particles and binding polymer for connection between each other and fixation of non-organic particles, and is equipped with micropores, which are formed by intermediate volumes between the non-organic particles. Also electrochemical device is suggested that contains the same electrode. Besides, method of manufacturing electrode is suggested, which has organic/non-organic composite porous cover layer on its surface, which consists of stages: (a) current collector coating with suspension, which contains electrode active material, and its drying in order to receive electrode and (b) stage of coating the surface of electrode, which was obtained on stage (a), with mixture of non-organic particles with binding polymer. Lithium secondary battery, which contains electrode, has higher safety and minimizes deterioration of battery operation characteristics.

EFFECT: improves characteristics and safety of electrode containing device.

24 cl, 12 dwg, 1 tbl, 13 ex