Positive Electrodes and Rechargeable Lithium Batteries

The USPTO has published a patent application by SAMSUNG SDI CO., LTD. for a new type of positive electrode and rechargeable lithium battery. The invention aims to increase capacity, reduce production costs, and improve battery performance characteristics.

Patent Application for Halogen-Free Cathode Binder

The USPTO has published a patent application (US20260088293A1) for a halogen-free polymeric binder for cathodes, assigned to Belenos Clean Power Holding AG. The application details the binder's formula, its inclusion in a cathode, and a method for its production.

Negative Electrode Active Material for Rechargeable Lithium Battery

The USPTO has published a patent application for a negative electrode active material for rechargeable lithium batteries. The material includes a carbon-based component with a surface modifier containing polar functional groups like carboxyl, amine, or thiol groups. This application details the composition and preparation method for the material.

US Patent Application for Coated Active Material for Batteries

The USPTO has published a new patent application (US20260088291A1) for a coated active material intended for use in battery positive electrodes. The application details specific compositions for the coating layer, including elements like Li, M, and F, and specifies coating amounts. This application is part of ongoing innovation in battery technology.

Lithium Battery Active Material Patent Application

The USPTO has published a new patent application (US20260088290A1) detailing a positive active material for lithium secondary batteries. The application describes a nickel-based lithium metal oxide secondary particle with specific structural characteristics intended to improve battery performance.

Electrochemical Cell Patent Application: Polymer Electrolyte Nickel Cathode

The USPTO has published a new patent application (US20260088289A1) detailing an electrochemical cell with a polymer electrolyte and a nickel-based cathode active material. The application was filed on September 18, 2023, by inventors from Belgium.

Lithium Secondary Battery Patent Application Published

The United States Patent and Trademark Office has published a new patent application, US20260088288A1, related to lithium secondary batteries. The application details a battery design that includes activated over-lithiated oxide particles with a coating material, aiming for an upper limit of operation voltage of 4.5 V or less.

Toyota Patent for Electrode Active Material and Battery

The USPTO has published a patent application from Toyota Jidosha Kabushiki Kaisha for an electrode active material, electrode layer, and battery. The application, filed on September 18, 2025, aims to provide an electrode active material that suppresses volume changes in the electrode layer, particularly for Si-based active materials.

Lithium Battery Cathode Material Patent Application

The USPTO has published a patent application (US20260088286A1) for a lithium secondary battery cathode active material. The application describes a material designed to suppress side reactions with electrolytes and improve battery performance. The filing date was December 5, 2025.

Lithium Battery Anode Active Material Patent Application

The USPTO has published a patent application (US20260088285A1) for an anode active material for lithium secondary batteries. The application details a composite material involving carbon-based particles with a silicon-containing coating and a surface oxide layer. This is a new patent application, not a final rule or enforcement action.