公开(公告)号：US20190027787A1

公开(公告)日：2019-01-24

申请号：US16033305

申请日：2018-07-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Satoru MIZUNO ,  Akira TSUKAO ,  Norihiro YAMADA

IPC: H01M10/0585 ,  H01M10/0525

Abstract: Provided is a method for manufacturing a laminated electrode body which is excellent in terms of productivity and production cost. The method for manufacturing a laminated electrode body disclosed herein includes the steps of: preparing a wound body having a flat portion and two curved portions by using a laminate formed of an elongated positive electrode, an elongated negative electrode, and an elongated separator that insulates the positive electrode and the negative electrode from each other; preparing an electrode laminate structure having two cut surfaces by cutting out and removing the two curved portions of the wound body; and removing active materials on the cut surfaces of the electrode laminate structure by spraying an inactive gas or electrically insulating particles onto the cut surfaces while applying, to the electrode laminate structure, a voltage of 25 V or more and less than a voltage causing a dielectric breakdown of the separator.

公开(公告)号：US20190280350A1

公开(公告)日：2019-09-12

申请号：US16287086

申请日：2019-02-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masato KAMIYA ,  Katsuhiko NAGAYA ,  Norihiro YAMADA ,  Shinobu OKAYAMA ,  Takayuki HOJO

IPC: H01M10/48 ,  G01R31/385 ,  H01M10/04 ,  H01M10/42

Abstract: A main object of the present disclosure is to provide a method for testing an all solid state battery with which the presence of short circuit or the presence of defect causing short circuit can be detected with high accuracy by a comparatively simple method in which a voltage is applied to a battery and the current value thereof is measured. The present disclosure achieves the object by providing a method for testing an all solid state battery, the method comprising steps of: a resistance increasing step of increasing resistance of an all solid state battery to 3.2*105 Ω·cm2 or more; a voltage applying step of applying voltage to an all solid state battery of which the resistance is increased; and a judging step of judging acceptability of the all solid state battery based on a current value measured in the voltage applying step.