Multi-layer electrode structure, and method of manufacturing same
AssigneesNisshinbo Industries, Inc., Itochu Corporation
InventorsTakaya Sato, Tatsuo Shimizu
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Abstract
A multi-layer electrode structure is provided comprised of a plurality of electrode layers composed of a binder and an electrode material and coated on a current-collecting member, each of the electrode layers including a macromolecular substance wherein a first electrode layer in contact with the current-collecting member and the second electrode layer in contact with the first electrode layer are formed of different constituents or have different proportions of the same constituent. A method of forming the multi-layer electrode structures as well as a battery and double-layer capacitor formed from the multi-layer electrode structures are also disclosed.
Claims6
A multi layer electrode structure comprising a plurality of electrode layers at least comprised of a binder made of a macromolecular substance and an electrode material and coated on a current-collecting material, wherein:
- a first electrode layer in contact with said current-collecting material and a second electrode layer in contact with said first electrode layer are formed of different constituents or have different proportions of the same constituent;
- said first electrode layer is thinner than said second electrode layer;
- and
- said first electrode layer has a stronger adhesive strength than said second electrode layer relative to said current-collecting material, thereby attaining effective adhesive properties and low electrical resistance of said first electrode layer;
- said binder of said first-electrode layer comprises an ion-conducting polymer;
- and
- said binder of said second electrode layer comprises a polymer prone to form fibrils.
Dependencies are inferred from the claim text.