公开(公告)号：US20170149088A1

公开(公告)日：2017-05-25

申请号：US15325620

申请日：2015-07-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yukiyoshi UENO ,  Yuichi ITO ,  Kunimitsu YAMAMOTO ,  Junko OHIRA

IPC: H01M10/0567 ,  H01M10/058 ,  H01M10/44 ,  H01M10/42 ,  H01M10/48

CPC classification number: H01M10/0567 ,  H01M4/0445 ,  H01M10/052 ,  H01M10/058 ,  H01M10/4235 ,  H01M10/44 ,  H01M10/446 ,  H01M10/48

Abstract: A method of manufacturing a nonaqueous secondary battery includes: constructing a battery assembly with a positive electrode, a negative electrode, and a nonaqueous electrolytic solution, the nonaqueous electrolytic solution containing a sulfonic acid compound having a triple bond; activating the battery assembly to decompose a portion of the sulfonic acid compound such that a percentage of the sulfonic acid compound is more than 0 mass % and 0.2 mass % or less with respect to 100 mass % of a total amount of the nonaqueous electrolytic solution; self-discharging the battery assembly to measure a voltage drop amount; and determining whether internal short-circuit occurs in the battery assembly based on the voltage drop amount.