Invention Grant
- Patent Title: Method of manufacturing an electrode or capacitor product
- Patent Title (中): 制造电极或电容器产品的方法
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Application No.: US12122383Application Date: 2008-05-16
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Publication No.: US07935155B2Publication Date: 2011-05-03
- Inventor: Porter Mitchell , Xiaomei Xi , Linda Zhong
- Applicant: Porter Mitchell , Xiaomei Xi , Linda Zhong
- Applicant Address: US CA San Diego
- Assignee: Maxwell Technologies, Inc.
- Current Assignee: Maxwell Technologies, Inc.
- Current Assignee Address: US CA San Diego
- Agency: Oppedahl Patent Law Firm LLC
- Main IPC: H01M6/00
- IPC: H01M6/00 ; H01M4/82

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.
Public/Granted literature
- US20080266753A1 DENSIFICATION OF COMPRESSIBLE LAYERS DURING ELECTRODE LAMINATION Public/Granted day:2008-10-30
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