Long life lithium batteries with stabilized electrodes
    72.
    发明授权
    Long life lithium batteries with stabilized electrodes 有权
    长寿命的锂电池具有稳定的电极

    公开(公告)号:US07968235B2

    公开(公告)日:2011-06-28

    申请号:US10857365

    申请日:2004-05-28

    IPC分类号: H01M6/18 H01M6/16

    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。

    Nano-sized structured layered positive electrode materials to enable high energy density and high rate capability lithium batteries
    74.
    发明申请
    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:US20090297947A1

    公开(公告)日:2009-12-03

    申请号:US12454748

    申请日:2009-05-22

    IPC分类号: H01M4/40

    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。 这些材料是由凝聚的初级粒子制成的球形第二粒子,Li + 1(α,Ni x Co y Mn z)1-tMtO 2 -d dd,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, 任何两个或更多个的混合物,0 <=α<0.50; 0

    Spherical Metal Carbonates and Lithium Metal Oxides for Lithium Rechargeable Batteries
    76.
    发明申请
    Spherical Metal Carbonates and Lithium Metal Oxides for Lithium Rechargeable Batteries 审中-公开
    用于锂可充电电池的球形金属碳酸盐和锂金属氧化物

    公开(公告)号:US20090087746A1

    公开(公告)日:2009-04-02

    申请号:US12249799

    申请日:2008-10-10

    IPC分类号: H01M4/52 H01M4/54 H01M4/50

    摘要: A number of materials with the composition Li1+xNiαMnβCoγM′δO2−zFz (M′=Mg, Zn, Al, Ga, B, Zr, Ti) for use with rechargeable batteries, wherein x is between about 0 and 0.3, α is between about 0.2 and 0.6, β is between about 0.2 and 0.6, γ is between about 0 and 0.3, δ is between about 0 and 0.15, and z is between about 0 and 0.2. Adding the above metal and fluorine dopants affects capacity, impedance, and stability of the layered oxide structure during electrochemical cycling. Another aspect of the invention includes materials with the composition Li1+xNiαCoβMnγM′δOyFz (M′=Mg, Zn, Al, Ga, B, Zr, Ti), where the x is between 0 and 0.2, the α between 0 and 1, the β between 0 and 1, the γ between 0 and 2, the δ between about 0 and about 0.2, the y is between 2 and 4, and the z is between 0 and 0.5.

    摘要翻译: 许多具有用于可再充电电池的Li1 + xNialphaMnbetaCogammaM'deltaO2-zFz(M'= Mg,Zn,Al,Ga,B,Zr,Ti)的材料,其中x在约0和0.3之间,α在 约0.2和0.6,β在约0.2和0.6之间,γ在约0和0.3之间,δ在约0和0.15之间,z在约0和0.2之间。 添加上述金属和氟掺杂剂影响电化学循环期间层状氧化物结构的容量,阻抗和稳定性。 本发明的另一方面包括具有Li1 + xNialphaCobetaMngammaM'deltaOyFz(M'= Mg,Zn,Al,Ga,B,Zr,Ti)组成的材料,其中x在0和0.2之间,α在0和1之间, 0和1之间的β,0和2之间的γ,约0和约0.2之间的Δ,y在2和4之间,z在0和0.5之间。

    Long life lithium batteries with stabilized electrodes
    78.
    发明授权
    Long life lithium batteries with stabilized electrodes 有权
    长寿命的锂电池具有稳定的电极

    公开(公告)号:US07507503B2

    公开(公告)日:2009-03-24

    申请号:US11297120

    申请日:2005-12-08

    IPC分类号: H01M6/16

    摘要: The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In some embodiments the additives include a substituted or unsubstituted cyclic or spirocyclic hydrocarbon containing at least one oxygen atom and at least one alkenyl or alkynyl group. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes or olivine or carbon-coated olivine electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

    摘要翻译: 本发明涉及具有电极稳定添加剂,稳定电极和含有这些电极的电化学装置的非水电解质。 因此,本发明提供了含有碱金属盐,极性非质子溶剂和电极稳定添加剂的电解质。 在一些实施方案中,添加剂包括含有至少一个氧原子和至少一个烯基或炔基的取代或未取代的环状或螺环烃。 当用于具有例如锂锰氧化物尖晶石电极或橄榄石或碳涂覆的橄榄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。

    Anode material for lithium batteries
    79.
    发明授权
    Anode material for lithium batteries 有权
    锂电池阳极材料

    公开(公告)号:US07390594B2

    公开(公告)日:2008-06-24

    申请号:US10741248

    申请日:2003-12-18

    IPC分类号: H01M4/58

    摘要: Primary and secondary Li-ion and lithium-metal based electrochemical cell system. The suppression of gas generation is achieved through the addition of an additive or additives to the electrolyte system of respective cell, or to the cell itself whether it be a liquid, a solid- or plastized polymer electrolyte system. The gas suppression additives are primarily based on unsaturated hydrocarbons.

    摘要翻译: 一次和二次锂离子和锂金属基电化学电池系统。 气体产生的抑制是通过向相应电池的电解质体系中添加添加剂或添加剂,或者将其添加到电池本身来实现的,无论它是液体,固体或塑化的聚合物电解质体系。 气体抑制添加剂主要基于不饱和烃。

    ELECTROLYTES, CELLS AND METHODS OF FORMING PASSIVATON LAYERS
    80.
    发明申请
    ELECTROLYTES, CELLS AND METHODS OF FORMING PASSIVATON LAYERS 审中-公开
    电解质,细胞和形成钝化层的方法

    公开(公告)号:US20080026297A1

    公开(公告)日:2008-01-31

    申请号:US11843889

    申请日:2007-08-23

    IPC分类号: H01M6/16

    摘要: An electrolyte comprising at least one organic aprotic solvent, at least one salt and at least one chelatoborate additive. A method of forming an SEI layer in a cell comprising a positive electrode, a negative electrode and an electrolyte, said method comprising the step of overcharging the electrolyte prior to fabricating the cell, or said cell during the formation cycle.

    摘要翻译: 包含至少一种有机非质子溶剂,至少一种盐和至少一种螯合硼酸盐添加剂的电解质。 一种在包括正极,负极和电解质的电池中形成SEI层的方法,所述方法包括在制造电池或在形成循环期间所述电池之前对电解液进行过充电的步骤。