2results about How to "Easy to thin" patented technology

A secondary battery and a method of manufacturing the same. The secondary battery includes a positive electrode sheet including a current collector, an active material layer, and an insulating layer. The active material layer is disposed on at least one surface of the current collector. The insulating layer is disposed on the surface of the current collector and is adjacent to the active material layer. The content of nitrogen or sulfur in the insulating layer is greater than or equal to 10 ppm, the porosity of the insulating layer is 0.6 to 0.9, and the ratio of the thickness of the insulating layer to the thickness of the active material layer is 0.8 to 1. The secondary battery of the present application has a small width of the thinned area at the edge of the active material layer.

This invention relates to a rubber head thinning fixture and its application method, comprising a movable platform, on which a rubber head holding plate, two racks, and two movable frames are arranged; a rubber head roller is arranged above the rubber head holding plate, and both ends of the rubber head roller are mounted on the movable frames via movable components. Gears are fixed to the ends of the rubber head rollers and mesh with the racks; a crank handle is provided at either end of the rubber head roller as a driving component; in use, the crank handle is cranked forward, and the gears drive the rubber head roller to rotate while moving forward along the racks, crushing the rubber head; after reaching the limit position, the crank handle is cranked in the opposite direction, driving the rubber head roller to return to its original position; this invention achieves reciprocating rolling thinning of the rubber head through a purely mechanical structure, with a simple and stable structure, requiring no electric drive, and can be flexibly used between different machines, effectively solving the problem of rubber heads being too large to be directly crushed.