Stabilized lithium metal powder for Li-ion application, composition and process

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Quick Facts

Patent No.: US 8,377,236
App. No.: 13/214,317
Granted: Feb 19, 2013
Kind: B2

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Abstract

The present invention provides a stabilized lithium metal powder having a substantially continuous protective layer of lithium phosphate on the lithium metal powder.

Claims (4)

1. A stable lithium metal powder having a substantially continuous protective layer of lithium phosphate.

2. The stable lithium metal powder according to claim 1 , further including an organic coating.

3. The stable lithium metal powder according to claim 2 , wherein the organic coating is a wax.

4. A stable lithium metal powder provided by heating lithium metal powder to above its melting point to provide molten lithium metal, dispersing the molten lithium metal, and contacting the dispersed molten lithium metal with a phosphoric acid to provide a substantially continuous protective layer of lithium phosphate on the lithium metal powder.

Assignments (8)

RELEASE OF SECURITY INTEREST Recorded Jul 30, 2025

From: RIO TINTO FINANCE PLC

To: LIVENT USA CORP.; ARCADIUM LITHIUM INTERMEDIATE IRL LIMITED

Reel/Frame 071886/0172 →

RELEASE OF SECURITY INTEREST IN PATENT - REEL/FRAME 061373/0148 Recorded Mar 6, 2025

From: C ITIBANK, N.A.

To: LIVENT USA CORP.

Reel/Frame 070433/0732 →

RELEASE OF SECURITY INTEREST IN PATENT - REEL/FRAME 047327/0058 AND 050900/0939 Recorded Mar 6, 2025

From: CITIBANK, N.A.

To: LIVENT USA CORP.