Nonaqueous electrolyte battery, electrode plate for nonaqueous electrolyte battery, and method for manufacturing electrode plate for nonaqueous electrolyte battery,
AssigneeToshiba Battery Co., Ltd.
InventorsHIDEKI KAIDO, KOUICHI MATSUMOTO, MINORU HASHIMOTO, MITSURU FURUICHI
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Abstract
A method for manufacturing an electrode plate of a nonaqueous electrolyte battery comprises the steps of: running a sheet conductive base material in a first direction; and injecting an electrode material composition containing an electrolyte from a die nozzle onto a first surface of the running sheet conductive base material to form uncoated areas at predetermined intervals on the first surface along the first direction.
Claims34
A method for manufacturing an electrode plate of a nonaqueous electrolyte battery comprising the steps of:
- running a sheet conductive base material in a first direction;
- and
- injecting an electrode material composition from a die nozzle onto a first surface of the running sheet conductive base material to form uncoated areas at predetermined intervals on the first surface along the first direction.
A method for manufacturing an electrode plate of a nonaqueous electrolyte battery comprising the steps of:
- running a sheet conductive base material in a first direction;
- and
- injecting an electrode material composition from a die nozzle onto first and second surfaces of the running sheet conductive base material to apply the electrode material composition per unit area in a different amount between the first area and the second area within an area of the sheet conductive base material for a single battery.
An electrode plate of a nonaqueous electrolyte battery comprising:
- a rectangular sheet conductive base material having a first side, a second side which is shorter than the first side, a first surface, and a second surface;
- and
- an electrode material composition layer consisting of a first electrode material composition layer which is formed on the first surface of the sheet conductive base material and a second electrode material composition layer which is formed on the second surface with an uncoated area extending in a direction of the second side formed intermittently with respect to a direction of the first side at a position where the first electrode material composition layer and the second electrode material composition layer are mutually opposed.
An apparatus for manufacturing an electrode plate of a nonaqueous electrolyte battery to apply an electrode material composition onto a first surface and/or a second surface of a rectangular sheet conductive base material which has a first side, a second side shorter than the first side, the first surface and the second surface, comprising:
- means for moving the sheet conductive base material in a direction of the first side;
- an injecting means which is disposed in the neighborhood of the surface of the moving sheet conductive base material and injects the electrode material composition in a direction substantially perpendicular to the first side;
- a coating agent supplying means for intermittently supplying the electrode material composition to the injecting means;
- a drying means for drying the electrode material composition coated onto the surface of the sheet conductive base material;
- and
- a pressurizing and compressing means for pressuring and compressing the dried sheet conductive base material and the electrode material composition.
A nonaqueous electrolyte battery comprising:
- a spiral cathode plate which is formed by winding a rectangular sheet conductive base material having a first side, a second side shorter than the first side, a first surface and a second surface around a shaft parallel to the second side;
- a spiral anode plate which is formed by winding a rectangular sheet conductive base material having a first side, a second side shorter than the first side, a first surface and a second surface around a shaft parallel to the second side and which is disposed to be substantially parallel to the surface of the cathode plate;
- an electrode material composition layer which is formed on the first and second surfaces of the cathode and anode plates and has an uncoated area, which is formed in multiple numbers on at least one of the first and second surfaces along the first side to extend in a direction of the second side, disposed intermittently with respect to the first side;
- a separator which is held between the cathode plate and the anode plate;
- and
- an outer member which has a positive terminal electrically connected to the uncoated area of the cathode plate and a negative terminal electrically connected to the anode plate.
A nonaqueous electrolyte battery comprising:
- a spiral cathode plate which is formed by winding a rectangular sheet conductive base material having a first side, a second side shorter than the first side, a first surface and a second surface around a shaft parallel to the second side;
- a spiral anode plate which is formed by winding a rectangular sheet conductive base material having a first side, a second side shorter than the first side, a first surface and a second surface around a shaft parallel to the second side and which is disposed to be substantially parallel to the surface of the cathode plate;
- an electrode material composition layer which is formed on at least one of the first and second surfaces of the cathode plate and/or the anode plate to have the coated amount continuously increased or decreased from one end to the other end along the first side of the cathode plate and/or the anode plate;
- a separator which is held between the cathode plate and the anode plate;
- and
- an outer member which has a positive terminal electrically connected to the cathode plate and a negative terminal electrically connected to the anode plate.
Dependencies are inferred from the claim text.