BATTERY MANUFACTURING METHOD (AS AMENDED)
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Abstract
The present invention provides a battery manufacturing method including: a step of preparing a thickener aqueous solution by dissolving a thickener in an aqueous solvent (S10); a kneading step of introducing an active material into the prepared thickener aqueous solution and kneading a result (S20); a diluting step of adding an aqueous solvent to a kneaded material resulting from the kneading step such that the kneaded material is diluted, whereby an active material layer forming paste is obtained from the kneaded material (S30); and a step of obtaining an electrode in which an active material layer is formed on a current collector by coating the current collector with the active material layer forming paste and then drying the paste (S40).
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Citations
19 Claims
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1-10. -10. (canceled)
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11. A method for manufacturing a battery that includes an electrode having an active material layer which is formed by coating a current collector with an active material layer forming paste containing an active material, a thickener, and an aqueous solvent, and then drying the paste, comprising:
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a step of preparing a thickener aqueous solution by dissolving the thickener in the aqueous solvent; a kneading step of introducing the active material into the prepared thickener aqueous solution and kneading a result; a diluting step of adding the aqueous solvent to a kneaded material resulting from the kneading step such that the kneaded material is diluted, whereby the active material layer forming paste is obtained from the kneaded material; and a step of obtaining the electrode in which the active material layer is formed on the current collector by coating the current collector with the active material layer forming paste and then drying the paste, wherein the aqueous solvent introduced into the thickener aqueous solution occupies between 67% by mass and 76% by mass of a total amount of the aqueous solvent in the active material layer forming paste. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification