Dry-particle based adhesive electrode and methods of making same

• US 20100033901A1
• Filed: 08/02/2009
• Published: 02/11/2010
• Est. Priority Date: 07/09/2003
• Status: Abandoned Application

• Current Assignee: Tesla Inc.
• Original Assignee: Maxwell Technologies Incorporated (Tesla Inc.)
• Inventors: Zou, Bin, Mitchell, Porter, Xi, Xiaomei, Zhong, Linda
• Application Number:
  US12/534,143
• Publication Number:
  US 20100033901A1
• Time in Patent Office: Days
• US Class Current: 361/502
• CPC Class Codes: H01G 11/28 arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
• CPC Class Codes: H01G 11/38 Carbon pastes or blends; Binders or additives therein
• CPC Class Codes: H01G 11/86 specially adapted for electrodes carbonisation or activation of carbon for the manufacture of electrodes H01G11/34
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors
• CPC Class Codes: Y10T 428/2982 Particulate matter [e.g., sphere, flake, etc.]

Abstract

A dry process based capacitor and method for making a self-supporting dry adhesive electrode film for use therein is disclosed.

Claims

1. A blend of dry particles for use in the dry manufacture of a self supporting energy storage device electrode, comprising:

dry carbon particles; and

dry binder particles.

2. The particles of claim 1, wherein the dry carbon particles comprise activated carbon and conductive carbon particles, and wherein the electrode is a capacitor electrode.

3. The particles of claim 1, wherein the dry binder particles comprise a dry thermoplastic.

4. The particles of claim 3, wherein the dry binder and dry carbon particles are intermixed, and wherein the dry thermoplastic is distributed within a thickness of a surface of the intermix with a decreasing gradient that is greater at a first thickness than a different second thickness.