公开(公告)号：US11139479B2

公开(公告)日：2021-10-05

申请号：US16672333

申请日：2019-11-01

申请人： QuantumScape Battery, Inc.

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 ,  H01M50/46 ,  H01M10/0562 ,  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.

公开(公告)号：US11211611B2

公开(公告)日：2021-12-28

申请号：US16421383

申请日：2019-05-23

申请人： QuantumScape Battery, Inc.

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 ,  H01M50/46 ,  H01M10/0562 ,  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.