Method of manufacturing an electrode or capacitor product
First Claim
1. A method of manufacturing an electrode product, the method comprising:
- providing a current collector comprising a first surface and a second surface;
coating the first surface with a first wet binder layer;
drying the first wet binder layer to result in a first dry binder layer coating the first surface;
providing a first film of active electrode material;
stacking the first film and the current collector so that the first dry binder layer is in contact with the first film; and
laminating the current collector and the first film by pressing the current collector and the first film to cause the first film to densify and to adhere to the first surface, thereby obtaining a laminated electrode product.
5 Assignments
0 Petitions
Accused Products
Abstract
A method of manufacturing an electrode product where a compressible and deformable layer is densified and laminated to a layer of a material that is relatively resistant to stretching. The densification and bonding take place in a single step. A method as used in fabrication of electrodes, for example, electrodes for double layer capacitors, a deformable and compressible active electrode film is manufactured from activated carbon, conductive carbon, and a polymer. The electrode film may be bonded directly to a collector. Alternatively, a collector may be coated with a wet adhesive layer. The adhesive layer is subsequently dried onto the foil. The dried adhesive and foil combination may be manufactured as a product for later sale or use, and may be stored as such on a storage roll or other storage device. The active electrode film is overlayed on the metal foil, and processed in a laminating device, such as a calender. Lamination both densifies the active electrode film and bonds the film to the metal foil. Spreading of the active electrode film in the plane parallel to the plane of the metal foil is reduced or eliminated during lamination, because of the adhesion between the film and the foil.
198 Citations
20 Claims
-
1. A method of manufacturing an electrode product, the method comprising:
-
providing a current collector comprising a first surface and a second surface;
coating the first surface with a first wet binder layer;drying the first wet binder layer to result in a first dry binder layer coating the first surface; providing a first film of active electrode material; stacking the first film and the current collector so that the first dry binder layer is in contact with the first film; and laminating the current collector and the first film by pressing the current collector and the first film to cause the first film to densify and to adhere to the first surface, thereby obtaining a laminated electrode product. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method of manufacturing a capacitor product, the method comprising:
-
providing a current collector comprising a first surface; providing an adhesive onto the first surface; and drying the adhesive to form a dried adhesive on the current collector, wherein after the step of drying the adhesive, the current collector is rolled onto a storage roll.
-
Specification