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.

Date of Patent:
Jan. 29, 2019

Filed:

Sep. 04, 2015
Applicant:

Nec Energy Devices, Ltd., Sagamihara-shi, Kanagawa, JP;

Inventors:

Tomoyuki Ohta, Kanagawa, JP;

Ryota Yanagisawa, Kanagawa, JP;

Takayuki Suzuki, Kanagawa, JP;

Assignee:

NEC ENERGY DEVICES, LTD., Sagamihara-shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 10/0566 (2010.01); H01M 10/058 (2010.01); H01M 2/02 (2006.01); H01M 4/04 (2006.01); H01M 10/42 (2006.01); H01M 2/36 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 2/0275 (2013.01); H01M 2/361 (2013.01); H01M 4/04 (2013.01); H01M 10/058 (2013.01); H01M 10/0566 (2013.01); H01M 10/4214 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); Y02E 60/122 (2013.01); Y02P 70/54 (2015.11); Y02T 10/7011 (2013.01);
Abstract

A method for manufacturing a lithium ion secondary battery, the lithium ion secondary battery including a positive electrode and a negative electrode disposed with a separator sandwiched therebetween and contained together with an electrolytic solution in an outer case including a flexible film, wherein the quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolytic solution into the outer case is 100 μg/mL or less.


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