Solid-state battery electrodes
AssigneeJohnson Battery Technologies, Inc.
InventorsLonnie G. Johnson, David K. Johnson
Life of this patent
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Abstract
Embodiments of solid-state batteries, battery components, and related construction methods are described. The components include one or more embodiments of a low melt temperature electrolyte bonded solid-state rechargeable battery electrode and one or more embodiments of a composite separator having a low melt temperature electrolyte component. Embodiments of methods for fabrication of solid-state batteries and battery components are described. These methods include co-extrusion, hot pressing and roll casting.
Claims17
A rechargeable solid-state battery electrode comprising:
- an electrochemically active powder material;
- a low ionic conductivity, low melting temperature inorganic solid electrolyte;
- and
- a high ionic conductivity, high melting temperature solid electrolyte, wherein the low melting temperature inorganic electrolyte binds the active material and the high melting temperature electrolyte together,
- and wherein the low ionic conductivity inorganic electrolyte is selected from the group consisting of Li2O—MoO3, Li2O—WO3, LiBr—Li2O—WO3, LiBr—Li2O—B2O3—P2O5, a mixture of LiNO3 and Al2O3, and a mixture of LiNO2 or LiNO3 and LiH2PO4 or P2O5.
A solid state battery anode, wherein the anode comprises:
- a lithium active powder material;
- a low ionic conductivity, low melting temperature inorganic solid electrolyte;
- and
- a high ionic conductivity, high melting temperature solid electrolyte, wherein the low melting temperature inorganic electrolyte forms a protective coating on individual particles of the lithium active powder material, and wherein the low ionic conductivity inorganic electrolyte is selected from the group consisting of Li2O—MoO3, Li2O—WO3, LiBr—Li2O—WO3, LiBr—Li2O—B2O3—P2O5, a mixture of LiNO3 and Al2O3, and a mixture of LiNO2 or LiNO3 and LiH2PO4 or P2O5.
A rechargeable solid state battery electrode, wherein the electrode comprises a matrix containing an electrochemically active powder material;
- a low ionic conductivity, low melting temperature inorganic solid electrolyte;
- and a high ionic conductivity, high melting temperature solid electrolyte, wherein the low ionic conductivity inorganic electrolyte is selected from the group consisting of Li2O—MoO3, Li2O—WO3, LiBr—Li2O—WO3, LiBr—Li2O—B2O3—P2O5, a mixture of LiNO3 and Al2O3, and a mixture of LiNO2 or LiNO3 and LiH2PO4 or P2O5.
Dependencies are inferred from the claim text.