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Pyridine sulfur trioxide complexes as electrolyte component for high voltage batteries

專(zhuān)利號(hào)
US11177505B2
公開(kāi)日期
2021-11-16
申請(qǐng)人
BASF SE; University of Rhode Island Board of Trustees(DE Ludwigshafen am Rhein)
發(fā)明人
Frederick Francois Chesneau; Arnd Garsuch; Michael Schmidt; Brett Lucht; Julien Demeaux; Yingnan Dong; Bo Zhang
IPC分類(lèi)
H01M10/0567; H01M10/0525; H01M10/0568; H01M10/0569
技術(shù)領(lǐng)域
so3,lithium,pyridine,c10,carbonate,alkyl,cyclic,or,selected,wt
地域: Ludwigshafen am Rhein

摘要

An electrolyte composition including (i) at least one aprotic organic solvent; (ii) at least one conducting salt; (iii) at least one pyridine-SO3 complex of formula (I) wherein R is selected independently at each occurrence from F, C1 to C10 alkyl, C2 to C10 alkenyl, and C2 to C10 alkynyl, wherein alkyl, alkenyl, and alkynyl may be substituted by one or more substituents selected from F and CN; and n is an integer selected from 1, 2, 3, 4, and 5; and (vi) optionally one or more additives; and its use in electrochemical cells.

說(shuō)明書(shū)

The anode and cathode may be made by preparing an electrode slurry composition by dispersing the electrode active material, a binder, optionally a conductive material and a thickener, if desired, in a solvent and coating the slurry composition onto a current collector. The current collector may be a metal wire, a metal grid, a metal web, a metal sheet, a metal foil or a metal plate. Preferred the current collector is a metal foil, e.g. a copper foil or aluminum foil.

The inventive lithium batteries may contain further constituents customary per se, for example separators, housings, cable connections etc. The housing may be of any shape, for example cuboidal or in the shape of a cylinder, the shape of a prism or the housing used is a metal-plastic composite film processed as a pouch. Suited separators are for example glass fiber separators and polymer-based separators like polyolefin separators.

Several inventive lithium batteries may be combined with one another, for example in series connection or in parallel connection. Series connection is preferred. The present invention further provides for the use of inventive lithium ion batteries as described above in devices, especially in mobile devices. Examples of mobile devices are vehicles, for example automobiles, bicycles, aircraft, or water vehicles such as boats or ships. Other examples of mobile devices are those which are portable, for example computers, especially laptops, telephones or electrical power tools, for example from the construction sector, especially drills, battery-driven screwdrivers or battery-driven staplers. But the inventive lithium ion batteries can also be used for stationary energy stores.

權(quán)利要求

1
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