公开(公告)号：US20170170530A1

公开(公告)日：2017-06-15

申请号：US15325325

申请日：2015-07-10

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yukiyoshi UENO ,  Yuuichi ITO ,  Kunimitu YAMAMOTO ,  Junko OHIRA

IPC分类号： H01M10/44 ,  H01M10/058 ,  H01M10/0566

CPC分类号： H01M10/446 ,  H01M10/0566 ,  H01M10/0567 ,  H01M10/058

摘要： 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 an unsaturated carbonate; activating the battery assembly to decompose a portion of the unsaturated carbonate such that a percentage of the unsaturated carbonate is adjusted to be 0.9 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.