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. 22, 2024
Filed:
May. 20, 2021
Applicant:
Ningde Amperex Technology Limited, Ningde, CN;
Inventor:
Kefei Wang, Ningde, CN;
Assignee:
Ningde Amperex Technology Limited, Ningde, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0569 (2010.01); H01M 4/13 (2010.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0569 (2013.01); H01M 4/13 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/48 (2013.01); H01M 2300/0025 (2013.01);
Abstract
An electrolyte includes a fluorinated cyclic carbonate, a multi-nitrilemulti-nitrile compound having an ether bond and a cyclic carbonate having a carbon-carbon double bond. Based on a total weight of the electrolyte, a weight percentage (C) of the fluorinated cyclic carbonate is greater than a weight percentage (C) of the multi-nitrilemulti-nitrile compound having an ether bond. The electrolyte can control the expansion of the electrochemical device, so that the electrochemical device has excellent cycle, storage and/or floating-charge performance.