Electrode, battery cell, cell stack, battery system, and method for manufacturing electrode
AssigneeSumitomo Electric Industries, Ltd.
InventorYuta OCHI
Life of this patent
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Abstract
An electrode used in a battery system, the electrode comprising a sheet made of a nonwoven fabric containing a plurality of carbon fibers. The sheet includes a first surface and a second surface that face each other in a direction along a thickness of the sheet, the plurality of carbon fibers include a first carbon fiber, the first carbon fiber includes at least one of a cut section facing the first surface and a cut section facing the second surface, a width of the sheet is less than or equal to 1000 mm, and a length of the sheet is less than or equal to 2000 mm.
Claims18
A method for manufacturing an electrode used in a battery system, the method comprising:
- preparing a sheet-like first electrode material that has a width less than or equal to 1000 mm and a length less than or equal to 2000 mm and is made of a nonwoven fabric containing a plurality of carbon fibers;
- and
- producing the electrode by cutting the first electrode material,
- wherein the producing the electrode includes:
- feeding the first electrode material to a cutting tool by rotation of a first roller and a second roller that sandwich the first electrode material;
- and
- slicing the first electrode material with the cutting tool such that a thickness of the first electrode material becomes thin.
A method for manufacturing an electrode used in a battery system, the method comprising:
- preparing a sheet-like first electrode material not in a roll and made of a nonwoven fabric containing a plurality of carbon fibers;
- and
- producing the electrode by cutting the first electrode material,
- wherein the producing the electrode includes:
- feeding the first electrode material to a cutting tool by rotation of a first roller and a second roller that sandwich the first electrode material;
- and
- slicing the first electrode material into a sheet with the cutting tool such that a thickness of the first electrode is thinner than the sheet-like first electrode material.
Dependencies are inferred from the claim text.