The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2025
Filed:
Feb. 21, 2022
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo, JP;
Abstract
A method for producing secondary battery electrodes includes a step of preparing a moisture powder formed of aggregated particles that contain electrode active material particles, a binder resin, and solvent, wherein the solid phase, liquid phase, and gas phase in at least 50 number % of the aggregated particles form a pendular state or a funicular state; a step of forming, using the moisture powder, a coating film while the gas phase remains present; a step of forming a first groove that extends in a first direction, by transferring depressions and elevations, using a first roll die, into the coating film; and a step of forming a second groove that extends in a different direction, by transferring depressions and elevations, using a second roll die, into the coating film. Depression/elevation transfer is carried out in such a manner that the second groove is made deeper than the first groove.