US Patent Application for Positive Electrode and Lithium Battery

ChangeBridge: Patent Apps - Batteries (H01M)

Published March 26th, 2026

Detected March 27th, 2026

Summary

The USPTO has published a new patent application from SAMSUNG SDI CO., LTD. for a positive electrode and rechargeable lithium battery. The application details a specific layered structure for the positive electrode, including the composition and proportion of active materials.

View original document View source feed page

What changed

This document is a publication of a US patent application (US20260088282A1) filed by SAMSUNG SDI CO., LTD. on September 19, 2025, and published on March 26, 2026. The application describes a novel positive electrode design for rechargeable lithium batteries, featuring a layered structure with specific proportions of layered and olivine-based active materials, conductive materials, and binders. This represents a new disclosure of potential technological advancements in battery technology.

As this is a patent application, it does not impose immediate regulatory obligations or compliance deadlines on manufacturers. However, it signals potential future developments in battery technology that companies in the energy storage and manufacturing sectors may wish to monitor for competitive or licensing purposes. The application is classified under H01M, relating to electrochemical energy storage.

Source document (simplified)

← USPTO Patent Applications

POSITIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Application US20260088282A1 Kind: A1 Mar 26, 2026

Assignee

SAMSUNG SDI CO., LTD.

Inventors

Sejeong PARK, Boram LEE, Songyul OH

Abstract

Disclosed are positive electrodes and rechargeable lithium batteries. The positive electrode includes a current collector, a first active material layer on the current collector, and a second active material layer on the first active material layer. The first active material layer includes a first particle including a layered positive electrode active material, a second particle including an olivine-based active material, a first conductive material; and a first binder. The second active material layer includes the second particle, a second conductive material, and a second binder. An amount of the first particle in the first active material layer is equal to or greater than about 70% and equal to or less than about 90%.