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:
Jan. 28, 2025
Filed:
Apr. 27, 2022
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Sokichi Okubo, Okazaki, JP;
Tomoyuki Uezono, Okazaki, JP;
Momoka Miyajima, Toyota, JP;
Nagisa Shimasaki, Nagoya, JP;
Miyuki Matsuyama, Toyota, JP;
PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
A method for producing an electrode sheet includes roll-pressing an uncompressed electrode sheet including a current collecting foil and an uncompressed electrode layer formed thereon and made from composite particles including active material particles and binder particles, by feeding the uncompressed electrode sheet to pass through a gap between first and second rolls to compress, and heating the sheet so that the active material particles are bonded to each other and also to the current collecting foil. A first outer peripheral surface temperature of the first roll contacting the foil falls within a temperature range from a binder-resin melting start temperature +5° C. to +25° C., and a second outer peripheral surface temperature of the second roll contacting the uncompressed electrode layer is lower than the first outer peripheral surface temperature and further falls within a temperature range not exceeding the melting start temperature +5° C.