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:
Feb. 11, 2020
Filed:
Jun. 30, 2015
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Jong Ho Jeon, Daejeon, KR;
Joo Hwan Koh, Seoul, KR;
Jin Ah Seo, Cheongju-si, KR;
Jin Hee Kim, Suwon-si, KR;
Sung Nim Jo, Seoul, KR;
Tae Hwan Yu, Seoul, KR;
Jung Joo Cho, Hwaseong-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Provided is an electrolyte solution for a lithium secondary battery and a lithium secondary battery having the same, the electrolyte solution further including an expressed solid salt which has an ammonium-based cation and a cyanide anion (CN). According to an embodiment of the present invention, an electrolyte solution including the solid salt may be provided, and thus the problem of decrease in stability of a negative electrode due to copper ions that are dissolved from a copper current collector in a high-temperature environment may be resolved. Therefore, a lithium secondary battery having excellent battery performance such as battery capacity, charging and discharging efficiency, and cycle characteristics even under a high-temperature condition may be provided.