Nano-sized structured layered positive electrode materials to enable high energy density and high rate capability lithium batteries
    133.
    发明授权
    Nano-sized structured layered positive electrode materials to enable high energy density and high rate capability lithium batteries 有权
    纳米级结构层状正极材料,能够实现高能量密度和高速率锂离子电池

    公开(公告)号:US08277683B2

    公开(公告)日:2012-10-02

    申请号:US12454748

    申请日:2009-05-22

    IPC分类号: H01M4/88

    摘要: Nano-sized structured dense and spherical layered positive active materials provide high energy density and high rate capability electrodes in lithium-ion batteries. Such materials are spherical second particles made from agglomerated primary particles that are Li1+α(NixCoyMnz)1−tMtO2−dRd, where M is selected from can be Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, Zr, or a mixture of any two or more thereof, R is selected from F, Cl, Br, I, H, S, N, or a mixture of any two or more thereof, and 0≦α≦0.50; 0

    摘要翻译: 纳米尺寸结构的致密和球形分层正极活性材料在锂离子电池中提供高能量密度和高倍率电容。 这些材料是由附聚的一次粒子制成的球形第二粒子,Li-1 +α(NixCoyMnz)1-tMtO2-dRd,其中M选自Al,Mg,Fe,Cu,Zn,Cr,Ag,Ca,Na, K,In,Ga,Ge,V,Mo,Nb,Si,Ti,Zr或其任意两种以上的混合物,R选自F,Cl,Br,I,H,S,N, 其中任何两个或多个的混合物,和0& nlE;α≦̸ 0.50; 0

    LONG LIFE LITHIUM BATTERIES WITH STABILIZED ELECTRODES
    140.
    发明申请
    LONG LIFE LITHIUM BATTERIES WITH STABILIZED ELECTRODES 有权
    具有稳定电极的长寿命锂离子电池

    公开(公告)号:US20110287326A1

    公开(公告)日:2011-11-24

    申请号:US13116559

    申请日:2011-05-26

    摘要: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal (chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

    摘要翻译: 本发明涉及具有稳定添加剂的非水电解质和含有它们的电化学装置。 因此,本发明提供了包含碱金属盐,极性非质子溶剂,作为取代或未取代的有机胺的第一添加剂,取代或未取代的烷烃,取代或未取代的烯烃或取代或未取代的芳基化合物的电解质,和/或第二 作为金属(螯合)硼酸盐的添加剂。 当用于例如锂锰氧化物尖晶石电极的电化学装置中时,新的电解质提供具有改善的日历和循环寿命的电池。