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Pyridine sulfur trioxide complexes as electrolyte component for high voltage batteries

專利號
US11177505B2
公開日期
2021-11-16
申請人
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
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.

說明書

  • R is selected independently at each occurrence from F, OSi(OR1)3, 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;
  • R1 is selected independently at each occurrence from 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.

    • The term “C1-C10 alkyl” as used herein means a straight or branched saturated hydrocarbon group with 1 to 10 carbon atoms having one free valence, e.g., methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, iso-pentyl, 2,2-dimethylpropyl, n-hexyl, n-heptyl, n-octyl, n-octyl, n-nonyl, n-decyl, and the like. Preferred are C1-C6 alkyl, more preferred are C1-C4 alkyl like methyl, ethyl, and n- and iso-propyl, and n-butyl and most preferred is methyl.

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