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:
Apr. 06, 2021
Filed:
Jul. 31, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
The method of the present disclosure includes: preparing a solution containing a water-soluble polymer dissolved in a mixed solvent containing water admixed with a first solvent having a higher boiling point than that of the water; applying the solution in a film form to a surface of an electrode to form a coating made of the solution on the surface of the electrode; and removing the mixed solvent from the coating by vaporization such that a porous separator layer made of the water-soluble polymer is formed on the surface of the electrode while a plurality of pores are formed in an inside of the coating due to removal of the first solvent. The solubility of the water-soluble polymer in the first solvent is lower than that of the water-soluble polymer in the water.