Lithium ion cells including coated solid-state electrolytes and methods of forming the same
AssigneeGM Global Technology Operations LLC
InventorsSayed Youssef Sayed Nagy, Caleb Reese
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Abstract
Lithium ion cells and methods for producing such cells are provided. The lithium ion cells include a lithium metal anode that includes a current collector and a lithium metal layer, a cathode having a lithium intercalation material, and a solid-state electrolyte (SSE) having a lithiophilic layer on a surface of the SSE. The lithiophilic includes a metal oxide. In one example, the lithiophilic layer is formed by depositing a non-aqueous precursor solution on the surface of a solid-state electrolyte (SSE), wherein the precursor solution includes a metallic nitrate, and decomposing the precursor solution to form the lithiophilic layer.
Claims20
A lithium ion cell, comprising:
- a lithium metal anode that includes a current collector and a lithium metal layer;
- a cathode having a lithium intercalation material;
- and
- a solid-state electrolyte (SSE) having a lithiophilic layer on a surface of the SSE, wherein the lithiophilic layer includes a metal oxide.
A method, comprising:
- depositing a non-aqueous precursor solution on a surface of a solid-state electrolyte (SSE), wherein the precursor solution includes a metallic nitrate;
- and
- decomposing the precursor solution to form a lithiophilic layer on the surface of the SSE, wherein the lithiophilic layer includes a metal oxide.
A vehicle, comprising:
- a lithium ion battery including a lithium ion cell, wherein the lithium ion cell includes:
- a lithium metal anode that includes a current collector and a lithium metal layer;
- a cathode having a lithium intercalation material;
- and
- a solid-state electrolyte (SSE) having a lithiophilic layer on a surface of the SSE, wherein the lithiophilic layer includes a metal oxide, wherein the surface of the SSE is lithiophobic,
- wherein lithium metal is plated on the current collector during charge of the lithium ion cell to define a plated lithium layer between the current collector and the lithiophilic layer;
- and
- a propulsion system configured to receive electric power from the lithium ion battery.
Dependencies are inferred from the claim text.