Lithium-ion electrochemical cells including fluorocarbon electrolyte additives
    1.
    发明授权
    Lithium-ion electrochemical cells including fluorocarbon electrolyte additives 有权
    锂离子电化学电池包括氟碳电解质添加剂

    公开(公告)号:US09455472B2

    公开(公告)日:2016-09-27

    申请号:US14122596

    申请日:2012-05-30

    摘要: Lithium-ion electrochemical cells are provided that include a positive electrode that includes a lithium metal oxide or a lithium metal phosphate, a negative electrode capable of intercalating or alloying with lithium, and an electrolyte that includes an additive. The additive includes a multifunctional anion that has the formula, X—SO2—Rf—SO2—Y, wherein X and Y are, independently, either O— or RfSO2N—, Rf is a straight or branched fluoroalkyl moiety having from 1 to 6 carbon atoms, and can, optionally, contain one or more in-chain heteroatoms, wherein Rf is a straight or branched chain or cyclic fluoroalkylene having from 1 to 10 carbon atoms and can, optionally, contain one or more in-chain heteroatoms, and wherein both Rf and Rf have a maximum of 20% non-fluorine substituents. The provided additives can improve the performance, hydrolytic stability, and thermal stability of the provided electrochemical cells.

    摘要翻译: 提供了包括包含锂金属氧化物或锂金属磷酸盐的正极,能够与锂嵌入或合金化的负极以及包含添加剂的电解质的锂离子电化学电池。 添加剂包括具有下式的多官能阴离子:X-SO 2 -R f -SO 2 -Y,其中X和Y独立地是O-或RfSO 2 N-,Rf是具有1-6个碳原子的直链或支链氟烷基部分 原子,并且可以任选地含有一个或多个在链的杂原子,其中R f是具有1至10个碳原子的直链或支链或环状氟代亚烷基,并且可以任选地含有一个或多个链内杂原子,并且其中 Rf和Rf均具有最多20%的非氟取代基。 所提供的添加剂可以提高所提供的电化学电池的性能,水解稳定性和热稳定性。

    Electrolyte Solutions For Electrochemical Energy Devices
    6.
    发明申请
    Electrolyte Solutions For Electrochemical Energy Devices 审中-公开
    电化学能源设备电解质解决方案

    公开(公告)号:US20080160419A1

    公开(公告)日:2008-07-03

    申请号:US11815117

    申请日:2006-02-03

    IPC分类号: H01M10/40

    摘要: Electrolyte solutions for an electrochemical energy device, including a lithium secondary battery, comprising (a) a supporting electrolyte salt and (b) a solvent composition comprising (1) at least one of a cyclic carbonic acid ester solvent and (2) at least one fluorine-containing solvent having a boiling point of at least 80° C., selected from among the following chemical formulas (i) to (iii): (i) R1—O—Rf1; (ii) R2—O—(Rf2—O)p—(Rf3—O)q—R3; (iii) A—(O—Rf4)m (where the definition of each formula is as described in the claim)

    摘要翻译: 一种包括锂二次电池的电化学能装置的电解液,包括(a)支持电解质盐和(b)溶剂组合物,其包含(1)至少一种环状碳酸酯溶剂和(2)至少一种 沸点为80℃以上的含氟溶剂,选自下列化学式(i)至(iii):(i)R 1 -OR 1, / SUB>; (ⅱ)R 2 -O-(R≠-O-O)p - (R f3 -O) q -R 3 3; (iii)A-(O-R 5)m(其中每个式的定义如权利要求中所述)

    Rechargeable Lithium-Ion Cell with Triphenylamine Redox Shuttle
    7.
    发明申请
    Rechargeable Lithium-Ion Cell with Triphenylamine Redox Shuttle 失效
    具有三苯胺氧化还原电穿梭的可充电锂离子电池

    公开(公告)号:US20070196727A1

    公开(公告)日:2007-08-23

    申请号:US11671128

    申请日:2007-02-05

    IPC分类号: H01M10/40 H01M10/04

    摘要: Provided is a rechargeable lithium-ion cell that contains a positive electrode, a negative electrode, a charge-carrying electrolyte containing a charge carrying medium and a lithium salt, and a triphenylamine compound dissolved in or dissolvable in the electrolyte. The triphenylamine compound has an oxidation potential above the positive electrode recharged potential and serves as a cyclable redox chemical shuttle providing cell overcharge protection. Also provided are methods for manufacturing a rechargeable lithium-ion cell.

    摘要翻译: 提供了一种可充电锂离子电池,其包含溶解在电解质中或可溶于电解质的正极,负极,含电荷载体和锂盐的带负载电解质和三苯胺化合物。 三苯胺化合物具有高于正极再充电电位的氧化电位,并且用作提供电池过充电保护的可循环氧化还原化学试剂。 还提供了用于制造可再充电锂离子电池的方法。