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Dry-particle based adhesive and dry film and methods of making same

  • US 9,525,168 B2
  • Filed: 08/22/2014
  • Issued: 12/20/2016
  • Est. Priority Date: 07/09/2003
  • Status: Active Grant
First Claim
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1. A process for manufacturing a cathode for use in a lithium ion battery, comprising:

  • supplying dry carbon particles and dry metal oxide particles;

    supplying a dry binder consisting essentially of fibrillizable binder particles;

    dry milling the dry carbon particles, dry metal oxide particles and dry binder in the absence of solvent and additional binders to form a powdered dry cathode mixture including fibrillized binder;

    feeding the powdered dry cathode mixture including the fibrillized binder to a compactor to form a self-supporting dry film; and

    applying the dry film to an electrically conductive substrate to form the cathode.

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