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:
Oct. 16, 2018
Filed:
Oct. 20, 2015
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Eunyoung Goh, Yongin-si, KR;
Jiwoon Lee, Yongin-si, KR;
Jinhyon Lee, Yongin-si, KR;
Jongki Lee, Yongin-si, KR;
Kiyoung Jeong, Gyeryong-si, KR;
Minje Park, Seoul, KR;
Jeong-Ju Cho, Suwon-si, KR;
Jongho Jeon, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A lithium secondary battery includes a thick-film negative electrode having a current density of about 4.0 mA/cmto about 7.0 mA/cmand a low-viscosity electrolytic solution having a viscosity of about 3 cP or less. Since the electrolytic solution includes a propionate-based ester compound, impregnation of the electrolytic solution in electronic devices having a thick-film negative electrode and lifespan characteristics of the devices may be improved.