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    Annealed garnet electrolyte separators
    15.
    发明授权
    Annealed garnet electrolyte separators 有权

    公开(公告)号：US09966630B2

    公开(公告)日：2018-05-08

    申请号：US15007908

    申请日：2016-01-27

    申请人： QuantumScape Corporation

    发明人： Lei Cheng ,  Sriram Iyer ,  Will Gardner ,  Tim Holme ,  Shuang Li ,  Cheng-chieh Chao ,  Niall Donnelly ,  Arnold Allenic

    IPC分类号： H01M2/14 ,  H01M10/0562 ,  H01M10/0565

    CPC分类号： H01M10/0562 ,  H01M2/145 ,  H01M10/052 ,  H01M10/056 ,  H01M10/0565 ,  H01M10/058

    摘要： Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.

    Solid state lithium-air based battery cell
    17.
    发明授权
    Solid state lithium-air based battery cell 有权
    固态锂空气电池

    公开(公告)号：US08940446B1

    公开(公告)日：2015-01-27

    申请号：US13959750

    申请日：2013-08-06

    申请人： QuantumScape Corporation

    发明人： Tim Holme ,  Niall Donnelly

    IPC分类号： H01M8/22 ,  H01M12/02

    CPC分类号： H01M12/02 ,  H01M4/8605 ,  H01M4/9016 ,  H01M12/08 ,  H01M2300/0071 ,  Y02E60/128

    摘要： In an example, the present invention provides a solid state battery device, e.g., battery cell or device. The device has a current collector region and a lithium containing anode member overlying the current collector region. The device has a thickness of electrolyte material comprising a first garnet material overlying the lithium containing anode member. The thickness of electrolyte material has a density ranging from about 80 percent to 100 percent and a porous cathode material comprising a second garnet material overlying the thickness of electrolyte material. The porous cathode material has a porosity of greater than about 30 percent and less than about 95 percent and a carbon bearing material overlying a surface region of the porous cathode material. In an example, the carbon bearing material comprises substantially carbon material, although there can be variations.

    摘要翻译： 在一个示例中，本发明提供了一种固态电池装置，例如电池单元或装置。 该器件具有集电极区域和覆盖集电极区域的含锂阳极部件。 该装置具有包含覆在含锂阳极部件上的第一石榴石材料的电解质材料的厚度。 电解质材料的厚度具有约80％至100％的密度，以及包含覆盖电解质材料厚度的第二种石榴石材料的多孔阴极材料。 多孔正极材料具有大于约30％且小于约95％的孔隙率，并且覆盖多孔阴极材料的表面区域的碳承载材料。 在一个示例中，碳承载材料基本上包含碳材料，尽管可能存在变化。

    Solid State Catholyte or Electrolyte for Battery Using LiaMPbSc (M=Si, Ge, and/or Sn)
    19.
    发明申请
    Solid State Catholyte or Electrolyte for Battery Using LiaMPbSc (M=Si, Ge, and/or Sn) 审中-公开

    公开(公告)号：US20200251741A1

    公开(公告)日：2020-08-06

    申请号：US16672333

    申请日：2019-11-01

    申请人： QuantumScape Corporation

    发明人： Cheng-Chieh Chao ,  Zhebo Chen ,  Tim Holme ,  Marie A. Mayer ,  Gilbert N. Riley, JR.

    IPC分类号： H01M4/62 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/36 ,  H01M10/056 ,  H01M10/0562 ,  H01M2/16 ,  H01M4/136 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  C01B33/00

    摘要： The present invention provides an energy storage device comprising a cathode region or other element. The device has a major active region comprising a plurality of first active regions spatially disposed within the cathode region. The major active region expands or contracts from a first volume to a second volume during a period of a charge and discharge. The device has a catholyte material spatially confined within a spatial region of the cathode region and spatially disposed within spatial regions not occupied by the first active regions. In an example, the catholyte material comprises a lithium, germanium, phosphorous, and sulfur (“LGPS”) containing material configured in a polycrystalline state. The device has an oxygen species configured within the LGPS containing material, the oxygen species having a ratio to the sulfur species of 1:2 and less to form a LGPSO material. The device has a protective material formed overlying exposed regions of the cathode material to substantially maintain the sulfur species within the catholyte material. Also included is a novel dopant configuration of the LiaMPbSc (LMPS) [M=Si,Ge, and/or Sn] containing material.