Lithium foil structure for lithium batteries, method for manufacturing lithium foil structure for lithium batteries, anode for lithium batteries, and lithium battery

Lithium foil structure with surface protection via non-ionic surfactant polymer coating

This technology improves the physicochemical stability of electrode surfaces by coating lithium foil with a specific non-ionic surfactant polymer (e.g., Pluronic series) to form a solid protective layer.

The use of lithium metal anodes has historically been hindered by issues such as dendrite growth, dead lithium formation, battery short circuits, increased resistance, and degradation of capacity and performance.

By dissolving non-ionic surfactant polymers (such as L61, L121, F127, F68, F87, P105, etc.) in a carbonate-based solvent to form a layered protective coating 10nm to 10μm thick on the lithium foil surface, this technology is expected to overcome the limitations of existing materials when applied to secondary battery anode materials.

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Key Features:

• A step of coating a lithium-containing foil with a coating agent containing a non-ionic surfactant polymer
• A configuration that forms a solid protective coating layer on the lithium foil surface by applying the coating agent as a solution and drying it
• A configuration where the protective coating layer has a layered structure and is formed in direct surface contact with the lithium foil
• A lithium foil structure where the protective coating layer is formed with a thickness of 10 nanometers to 10 micrometers

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