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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

  • Li[B(RI)4], Li[B(RI)2(ORIIO)] and Li[B(ORIIO)2] wherein each RI is independently from each other selected from F, Cl, Br, I, C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkynyl, OC1-C4 alkyl, OC2-C4 alkenyl, and OC2-C4 alkynyl wherein alkyl, alkenyl, and alkynyl may be substituted by one or more ORIII, wherein RIII is selected from C1-C6 alkyl, C2-C6 alkenyl, and C2-C6 alkynyl, and
  • (ORIIO) is a bivalent group derived from a 1,2- or 1,3-diol, a 1,2- or 1,3-dicarboxylic acid or a 1,2- or 1,3-hydroxycarboxylic acid, wherein the bivalent group forms a 5- or 6-membered cycle via the both oxygen atoms with the central B-atom;
  • LiClO4; LiAsF6; LiCF3SO3; Li2SiF6; LiSbF6; LiAlCl4, Li(N(SO2F)2), lithium tetrafluoro (oxalato) phosphate; lithium oxalate; and
  • salts of the general formula Li[Z(CnF2+1SO2)m], where m and n are defined as follows:
    • m=1 when Z is selected from oxygen and sulfur,
    • m=2 when Z is selected from nitrogen and phosphorus,
    • m=3 when Z is selected from carbon and silicon, and
    • n is an integer in the range from 1 to 20.

    • 權(quán)利要求

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