US12573609USUSPTO Grant XML

Lithium metal anode, fabrication method thereof, and lithium secondary battery comprising same anode

One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li-N-C-H-O based ionic compound.

Patent

Brief

Patent brief

Problem

How can corrosion in underground pipelines and conduits be prevented?

Novelty

Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least o...

Uses

Pipelines, Buried conduit, Storage tanks

Assignee

POSCO Holdings Inc.

Published

Mar 10, 2026

Inventors

Jin Hong Kim, Hong-Youl Bae, Mun Kyu Cho, Nam Soon Choi, Sang-Lag Lee, Weon-Soo Bae, Yong Won Lee, Ji-Woong Moon

Domain

Infrastructure / energy

Plain-English summary

Problem

How can corrosion in underground pipelines and conduits be prevented?

Solution

One embodiment of the present invention relates to a lithium metal anode.

Key novelty

Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li-N-C-H-O based ionic compound.

Applications

PipelinesBuried conduitStorage tanks

Relevant search intents

anode

Claims preview

1 . A lithium metal anode comprising: a current collector; a lithium metal thin film layer disposed on at least one surface of the current collector; and a coating layer disposed on a surface of the lithium metal thin film layer, wherein the lithium metal thin film layer is disposed between the current collector and the coating layer, and the coating layer comprises a Li-N-C-H-O based ionic compound represented by formula (1) or formula (2), wherein the Li-N-C-H-O based ionic compound comprises Li-O, C-N, C-O, and C-H bonds, wherein the lithium metal thin film layer has a columnar microstructure extending from the current collector and a flat surface morphology free of dendrites, and the Li-N-C-H-O based ionic compound uniformly disposed across the flat surface of the lithium metal thin film layer: wherein in the formula 1, R 1 and, R 2 are each CH m F 2-m , m is one of 1 or 2, A 1 is and n1 is an integer of 1 to 10, wherein in the formula 2, R 3 , and R 4 are each CH m F 2-m , m is one of 1 or 2, A 2 is and n2 is an integer of 1 to 10. 2 . The lithium metal anode of claim 1 , wherein the coating layer further comprises LiF. 3 . The lithium metal anode of claim 1 , wherein the lithium metal thin film layer has a thickness in a range of 0.1 m to 200 m.

Linked approaches

Cathodic protection

Electrochemical methods that reduce corrosion in buried metal systems.

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