利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

100 条记录 (耗时 0.027 秒)

    Stabilized lithium metal powder for Li-ion application, composition and process
    26.
    发明申请
    Stabilized lithium metal powder for Li-ion application, composition and process 有权
    稳定的锂金属粉末用于锂离子的应用，组成和工艺

    公开(公告)号：US20080283155A1

    公开(公告)日：2008-11-20

    申请号：US12152212

    申请日：2008-05-13

    申请人： Marina Yakovleva ,  Yuan Gao ,  Yangxing Li

    发明人： Marina Yakovleva ,  Yuan Gao ,  Yangxing Li

    IPC分类号： C23C8/40 ,  C23C8/58

    CPC分类号： B22F1/0062 ,  B22F1/02 ,  B22F9/06 ,  H01M4/382 ,  Y10T428/2991

    摘要： The present invention provides a method for stabilizing lithium metal powder. The method comprises the steps of heating the lithium metal powder to above its melting point to provide molten lithium metal, dispersing the molten lithium metal, and contacting the dispersed molten lithium metal with a phosphorous-containing compound to provide a substantially continuous protective layer of lithium phosphate on the lithium metal powder.

    摘要翻译： 本发明提供一种稳定锂金属粉末的方法。 该方法包括以下步骤：将锂金属粉末加热到高于其熔点以提供熔融的锂金属，分散熔融的锂金属，并使分散的熔融锂金属与含磷化合物接触，以提供基本上连续的锂保护层 磷酸盐在锂金属粉末上。

    Positive electrode active materials for secondary batteries and methods of preparing same
    27.
    发明授权
    Positive electrode active materials for secondary batteries and methods of preparing same 有权
    二次电池用正极活性物质及其制备方法

    公开(公告)号：US06878490B2

    公开(公告)日：2005-04-12

    申请号：US10040047

    申请日：2001-10-29

    申请人： Yuan Gao ,  Marina Yakovleva ,  Michael E. Leonowicz ,  Prakash Palepu ,  John F. Engel

    发明人： Yuan Gao ,  Marina Yakovleva ,  Michael E. Leonowicz ,  Prakash Palepu ,  John F. Engel

    IPC分类号： C01G23/00 ,  C01G51/00 ,  C01G53/00 ,  H01M4/36 ,  H01M4/48 ,  H01M4/485 ,  H01M4/50 ,  H01M4/505 ,  H01M4/52 ,  H01M4/525 ,  H01M4/58 ,  C01G43/04 ,  C01G49/04 ,  C01G51/04

    CPC分类号： H01M4/525 ,  C01G23/005 ,  C01G53/42 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/364 ,  H01M4/485 ,  H01M4/505 ,  H01M4/5825

    摘要： The present invention is a positive electrode active material that can be used in secondary lithium and lithium-ion batteries to provide the power capability, i.e., the ability to deliver or retake energy in short periods of time, desired for large power applications such as power tools, electric bikes and hybrid electric vehicles. The positive electrode active material of the invention includes at least one electron conducting compound of the formula LiM1x−y{A}yOz and at least one electron insulating and lithium ion conducting lithium metal oxide, wherein M1 is a transition metal, {A} is represented by the formula ΣwiBi wherein Bi is an element other than M1 used to replace the transition metal M1 and wi is the fractional amount of element Bi in the total dopant combination such that Σwi=1; Bi is a cation in LiM1x−y{A}yOz; 0.95≦x≦2.10; 0≦y≦x/2; and 1.90≦z≦4.20. Preferably, the lithium metal oxide is LiAlO2 or Li2M2O3 wherein M2 is at least one tetravalent metal selected from the group consisting of Ti, Zr, Sn, Mn, Mo, Si, Ge, Hf, Ru and Te. The present invention also includes methods of making this positive electrode active material.

    摘要翻译： 本发明是一种正极活性物质，可用于二次锂离子电池和锂离子电池，以提供电力能力，即在短时间内传递或重新获取能量的能力，对于诸如电力的大功率应用而言是理想的 工具，电动自行车和混合动力电动汽车。 本发明的正极活性物质包括至少一种式LiM 1 y {A} y O z的电子导电化合物和至少一种电子绝缘和锂离子导电的锂金属氧化物，其中M 1是过渡金属 ，{A}由公式SigmawiBi表示，其中Bi是用于替代过渡金属M 1的除了M 1之外的元素，w i是总掺杂剂组合中元素Bi的分数，使得Sigmawi = 1 ; Bi是LiM 1 x-y {A} yOz中的阳离子; 0.95 <= x <= 2.10; 0 <= y <= x / 2; 和1.90 <= z <= 4.20。 优选地，锂金属氧化物是LiAlO 2或Li 2 M 2 O 3，其中M 2是选自Ti，Zr，Sn，Mn，Mo，Si，Ge，Hf，Ru和Te中的至少一种四价金属 。 本发明还包括制造该正极活性物质的方法。

    Lithium metal oxide containing multiple dopants and method of preparing same
    29.
    发明授权
    Lithium metal oxide containing multiple dopants and method of preparing same 失效
    含有多种掺杂剂的锂金属氧化物及其制备方法

    公开(公告)号：US06277521B1

    公开(公告)日：2001-08-21

    申请号：US09078849

    申请日：1998-05-14

    申请人： Yuan Gao ,  Marina Yakovleva

    发明人： Yuan Gao ,  Marina Yakovleva

    IPC分类号： H01M458

    CPC分类号： C01G53/42 ,  C01G51/42 ,  C01P2002/08 ,  C01P2002/52 ,  C01P2006/32 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525

    摘要： The present invention provides a multiple-doped lithium metal oxide and a method of preparing same for use in the positive electrodes of lithium and lithium ion batteries. The intercalation compound of the invention has the formula LiNi1−xCoyMaM′bO2, wherein M is selected from the group consisting of Ti, Zr, and combinations thereof, and M′ is selected from the group consisting of Mg, Ca, Sr, Ba, and combinations thereof. The elements in the compounds are present such that x=y+a+b, x is from greater than 0 to about 0.5, y is from greater than 0 to about 0.5, a is from greater than 0 to about 0.15, and b is from greater than 0 to about 0.15.

    摘要翻译： 本发明提供一种多掺杂锂金属氧化物及其制备方法，用于锂和锂离子电池的正极中。 本发明的嵌入化合物具有式LiNi1-xCoyMaM'bO2，其中M选自Ti，Zr及其组合，M'选自Mg，Ca，Sr，Ba， 及其组合。 存在化合物中的元素使得x = y + a + b，x大于0至约0.5，y大于0至约0.5，a为大于0至约0.15，b为 从大于0到约0.15。

    PROTECTION CIRCUIT AND A GATE DRIVING CIRCUITRY
    30.
    发明申请
    PROTECTION CIRCUIT AND A GATE DRIVING CIRCUITRY 有权
    保护电路和门驱动电路

    公开(公告)号：US20150098160A1

    公开(公告)日：2015-04-09

    申请号：US14394675

    申请日：2012-04-19

    申请人： Yuan Gao ,  Patrice Besse ,  Thierry Laplagne

    发明人： Yuan Gao ,  Patrice Besse ,  Thierry Laplagne

    IPC分类号： H02H3/28

    CPC分类号： H02H3/28 ,  H03K17/0822 ,  H03K17/102

    摘要： A protection circuit and a gate driving circuitry. The protection circuit is for protecting a p-type back-to-back MOS switch. The circuit receives an input driving signal and provides a driving output signal to common gates of the p-type back-to-back MOS switch. The circuit comprises a driving signal insulation switch for disconnecting the common gate of the p-type back-to-back MOS switch from the received input driving signal when the voltage of the common gates is larger than the supply voltage of the circuit. The circuit further comprises a gate source coupling switch for coupling a voltage received at the common source of the p-type back-to-back MOS switch to the common gate if a received voltage at the common sources is larger than a reference voltage Vref.

    摘要翻译： 保护电路和栅极驱动电路。 保护电路用于保护p型背对背MOS开关。 电路接收输入驱动信号，并向p型背对背MOS开关的公共栅极提供驱动输出信号。 该电路包括驱动信号绝缘开关，用于当公共栅极的电压大于电路的电源电压时，从所接收的输入驱动信号中断开p型背对背MOS开关的公共栅极。 该电路还包括一个栅极耦合开关，用于在公共源的接收电压大于参考电压Vref时，将在p型背靠背MOS开关的公共源接收的电压耦合到公共栅极。