Abstract: The present disclosure includes a method for manufacturing a dry electrode film, a dry electrode film, and a dry electrode including the dry electrode film. The method for manufacturing a dry electrode film includes preparing a dry mixture by dry mixing an active material, a conductive material, and a binder, manufacturing a mixture lump by kneading the dry mixture, obtaining an electrode powder by crushing the mixture lump, manufacturing a specimen using the electrode powder through a mold, testing a yield strength of the specimen, and manufacturing, when a test result of the yield strength satisfies a desired criterion, a sheet type dry electrode film having a given thickness by calendaring the electrode powder.

Abstract: An apparatus for manufacturing a film for an electrode may include a feeder configured to transport mixed powder, a guide chute including a filter portion configured to pass small particles and leave large particles among the powder falling from the feeder, and a guide portion that guides the large particles in a given direction, and a rolling roll configured to roll the powder delivered through the guide portion.

Abstract: An example electrode manufacturing device includes a feeding device configured to supply electrode powder, a guide chute adjacent to a discharge end of the feeding device and into which the electrode powder supplied from the feeding device is introduced, a dispersing drum between the feeding device and the guide chute and configured to disperse the electrode powder moving from the feeding device to the guide chute, and a press roller adjacent to a discharge end of the guide chute and configured to press the electrode powder discharged from the guide chute.

Abstract: A dry electrode manufacturing apparatus includes an input portion configured to supply electrode powder, a guide chute configured to pass the electrode powder supplied from the input portion, a dispersion rod disposed inside the guide chute and configured to undergo at least one of a linear motion or a rotational motion to disperse the electrode powder and adjust a particle-size distribution, a drive unit configured to provide power to the dispersion rod, and compression rolls configured to compress the electrode powder discharged from the guide chute into an electrode member in a sheet form having a desired thickness.

Abstract: A dry electrode film and a manufacturing method thereof are disclosed. The manufacturing method of a dry electrode film includes: adding an electrode active material, a dry binder, and a conductive material to prepare a first dry mixture; performing dry mixing on the first dry mixture to prepare a second dry mixture in which the dry binder is fiberized; and performing disintegration on the second dry mixture to prepare a third dry mixture, the disintegration being performed at a temperature less than a fiberization temperature of the dry binder.

Abstract: An apparatus for manufacturing a dry electrode, a method for manufacturing a dry electrode, and a dry electrode manufactured thereby are disclosed. The apparatus may include: a dry mixture supply part, a dry binder, and a dry conductive material, where the dry mixture supply part may include a feeding shutter to adjust a width of an opening through which the dry mixture is supplied; an extrusion part to form an electrode active material layer including a first coated portion, a second coated portion, and a third coated portion including a film formed from the dry mixture, where the electrode active material layer may further include an uncoated portion, which is an empty area and defined between the first coated portion and the third coated portion; a lamination part to laminate the electrode active material layer on an electrode current collector; and a sensor part to recognize the uncoated portion.

Abstract: A dry electrode manufacturing device is disclosed. The dry electrode manufacturing device may include: an inserting part that supplies an electrode powder for dry electrode manufacturing; a guide chute that passes through the electrode powder supplied from the inserting part; a dispersing rod provided in the guide chute to disperse the electrode powder and adjust a particle size distribution of the electrode powder; and a rolling roll that compresses the electrode powder distributed to have an adjusted, uniform particle size into an electrode member in the form of a sheet that has a set or predetermined thickness.

Abstract: A dry electrode manufacturing device is disclosed. The dry electrode manufacturing device may include an inserting part to supply electrode powder for dry electrode manufacturing, a guide chute to pass through the electrode powder supplied from the inserting part, a dispersing rod that is provided in the guide chute to disperse the electrode powder and adjust particle size distribution, a driver that moves at least one selected from among the guide chute and the dispersing rod by applying an external force, and a rolling roll to compress the electrode powder of the adjusted particle size distribution via the guide chute and the dispersing rod into an electrode member in the form of a sheet that has a set or predetermined thickness.

Abstract: A dry electrode and a manufacturing method thereof are disclosed. The method includes preparing a first positive electrode active material Lia1Fex1B1-x1PO4-b1, a second positive electrode active material Lia2Nix2COy2Dz2O2-b2, a dry binder, and a dry conductive material; grinding the dry binder at 10° C. or less; forming a first mixture by mixing a first portion of the first positive electrode active material, the second positive electrode active material, the dry conductive material, and the grinded dry binder; forming a second mixture by mixing a second portion of the first positive electrode active material with the first mixture; forming a positive electrode active material layer by forming a film from the second mixture; and performing a lamination of the positive electrode active material layer on a positive electrode current collector.