MANUFACTURING METHOD OF ELECTRODES FOR ELECTROCHEMICAL CURRENT SOURCE AND DEVICE FOR METHOD IMPLEMENTATION Russian patent published in 2012 - IPC H01M4/26 H01M4/20 H01G9/04 

FIELD: electricity.

SUBSTANCE: electrode manufacturing method is implemented by application of active material to substrate, by placing substrate between ribbons of filter materials, by the first and next drawing of substrate through rollers and subsequent cutting of substrate into electrodes. The first drawing of substrate from side of active material is carried by two ribbons made of materials with different porosity and pressed to each other by their surfaces. External ribbon that contacts active material is made of material with high porosity with pore size of 10-70 mcm, e.g. of non-woven polypropylene or polyethylene; internal ribbon is made of material with low porosity and size of pores less than 6 mcm, e.g. of paper. Pressure at the first and next drawings shall be within range of 4.5-11 kg/cm². Device for electrode production contains forwarding mechanism in the form of belt conveyor, bunker for material application, frame with installed upper and lower receiving driving rolls and feed rolls, roller for the first and next drawing and electrode cutting mechanism. Between rollers for the first and next drawing there are upper and lower filtering ribbons made of low-porosity material and located at respective rolls. Device is equipped with one or two continuous filtering ribbons made of high-porosity material, which are installed at tolls for the first drawing and directly over top of one or two ribbons with low porosity (when substrate is drawn at one or both sides). Width of continuous ribbon corresponds to width of low-porosity ribbon. Support rotating rollers with continuous ribbon are installed at frame. Axes of support rollers are installed in parallel to the first drawing rollers. The first drawing rollers for the first drawing are located inside continuous ribbon runs in the same place as support rollers. Ration of thickness for materials with high and low porosity is 1:1-1:2.1.

EFFECT: reduction of material process losses and reduction of reject rate by weight of active material in electrode.

9 cl, 3 dwg, 5 ex