Quantumscape Corporation

Cheng Chieh Chao

Joseph Han

Weston Arthur Hermann

Tim Holme

Rainer Johannes Fasching

Timothy P Holme

Bradley Owen Stimson

Gilbert N Riley, Jr

Karl M Brown

Zhebo Chen

Marie A Mayer

Jagdeep Singh

Adrian Winoto

Will Hudson

Anna Choi

The present invention is related to formation and processing of antiperovskite material. In various embodiments, a thin film of aluminum doped antiperovskite is deposited on a substrate, which can be an electrolyte material of a lithium-based electrochemical storage device.

Method for forming and processing antiperovskite material doped with aluminum material

Provided herein are energy storage device cathodes with high capacity electrochemically active material including compounds that include iron, fluorine, sulfur, and optionally oxygen. Batteries with active materials including a compound of the formula FeFSOexhibit high capacity, high specific energy, high average discharge voltage, and low hysteresis, even when discharged at high rates. Iron, fluorine, and sulfur-containing compounds may be ionically and electronically conductive.

Iron, fluorine, sulfur compounds for battery cell cathodes

The disclosure is related to battery systems. More specifically, embodiments of the disclosure provide a nanostructured conversion material for use as the active material in battery cathodes. In an implementation, a nanostructured conversion material is a glassy material and includes a metal material, one or more oxidizing species, and a reducing cation species mixed at a scale of less than 1 nm. The glassy conversion material is substantially homogeneous within a volume of 1000 nm.

Nanostructured materials for electrochemical conversion reactions

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. 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 LiMPS(LMPS) [M=Si, Ge, and/or Sn] containing material.

Solid state catholytes and electrolytes for energy storage devices

The present invention provides an energy storage device comprising a cathode region having an active region which expands or contracts from a first volume to a second volume during a period of a charge and discharge. The device has a a solid state catholyte material which includes lithium, phosphorus, sulfur, and silicon elements. 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 oxygen doped configuration of LiSiPScontaining material.

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Santa Clara, CA, United States of America

Cheng Chieh Chao