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US 8,785,041 B2Granted
Electrode and production method thereof
AssigneeNissan Motor Co., Ltd.
InventorsShiho Inoue, Hideaki Horie, Kenji Hosaka, Osamu Shimamura, Shigeo Ibuka
Life of this patent
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Abstract
An electrode includes a collector formed with a conductive resin layer and an active material layer formed on the conductive resin layer. The active material layer comprises an active material and a binder polymer, and the conductive resin layer is bonded by thermal fusion bonding to the active material layer.
Claims6
A production method of an electrode, comprising:
- preparing a collector consisting of a laminated material of three or more conductive resin layers each containing a polymer material, the collector including outermost resin layers and at least one inner layer interposed between the outermost resin layers;
- forming an electrode laminate by laminating an active material layer on the collector, the active material layer containing a binder polymer having a melting point, wherein the polymer material of each of the three or more conductive resin layers has a softening point lower than the melting point of the binder polymer;
- and wherein the polymer material of one of the outermost resin layers disposed nearer to the active material layer than the other of the outermost resin layers has a softening point lower than that of the polymer material of the at least one inner layer;
- and
- thermal fusion bonding the conductive resin layer to the active material layer in the electrode laminate at a thermal fusion bonding temperature selected to fuse the polymer material without melting the binder polymer.
2 more elements
A production method of an electrode, comprising:
- preparing a collector consisting of a laminated material of three or more conductive resin layers each containing a polymer material, the collector including outermost resin layers and at least one inner layer interposed between the outermost resin layers;
- forming an electrode laminate by laminating an active material layer on the collector, the active material layer containing a binder polymer having a melting point, wherein the polymer material of each of the three or more conductive resin has a softening point lower than a melting point of the binder polymer;
- and wherein the polymer material of one of the outermost resin layers adjacent to the active material layer has a softening point lower than that of the polymer material of the at least one inner resin layer;
- and
- thermal fusion bonding the conductive resin layer to the active material layer in the electrode laminate at a thermal fusion bonding temperature selected to fuse the polymer material without melting the binder polymer.
2 more elements
Dependencies are inferred from the claim text.