Patent Application for Battery Electrode Plate with Silicon-Based Material

ChangeBridge: Patent Apps - Batteries (H01M)

Published March 26th, 2026

Detected March 27th, 2026

Summary

The USPTO has published a new patent application (US20260088277A1) for a negative electrode plate for batteries. The application describes a silicon-based material and specific binder functional groups intended to improve battery performance and manufacturing cohesion.

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What changed

This document is a published patent application from the USPTO detailing a negative electrode plate for batteries. The invention incorporates a silicon-based material within the negative electrode film layer, bound by specific functional groups (hydroxyl, carboxyl, amino, cyano, ester, or vinyl). The stated purpose is to enhance cohesion and adhesion, reduce powder shedding during production, and improve the battery's cycling performance.

While this is a patent application and not a regulation, manufacturers in the battery sector, particularly those developing advanced battery technologies, should be aware of emerging innovations. The assignee is CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED. The application was filed on December 4, 2025, and published on March 26, 2026. No compliance actions or deadlines are imposed by this publication; it serves as notice of potential future intellectual property and technological advancements in the field.

Source document (simplified)

← USPTO Patent Applications

NEGATIVE ELECTRODE PLATE, BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Application US20260088277A1 Kind: A1 Mar 26, 2026

Assignee

CONTEMPORATRY AMPEREX TECHNOLOGY CO., LIMITED

Inventors

Kai WU, Jinling Zhao, Zaiyu Zhuang, Ming Zhang

Abstract

Embodiments of this application provide a negative electrode plate, a battery cell, a battery, and an electric apparatus. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one side of the negative electrode current collector; where the negative electrode film layer includes a negative electrode active material and a binder, the negative electrode active material includes a silicon-based material, and the binder includes at least one of the following functional groups: hydroxyl, carboxyl, amino, cyano, ester, or vinyl. The technical solution of this application can improve cohesion and adhesion of the negative electrode plate, reducing powder shedding and demolding during production, thereby enhancing cycling performance of the battery.