Changeflow GovPing Energy USPTO Patent Granted for Electrochemical Device
Routine Notice Added Final

USPTO Patent Granted for Electrochemical Device

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Published March 24th, 2026
Detected March 26th, 2026
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Summary

The USPTO has granted a patent (US12586793B2) to Ningde Amperex Technology Limited for an electrochemical device. The device features a negative active material layer composed of hard carbon with a specific porosity and an electrolyte with defined conductivity.

What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12586793B2 for an electrochemical device. The patent, assigned to Ningde Amperex Technology Limited, specifically details an electrochemical device that includes a negative active material layer comprising hard carbon with a porosity of 20% to 60%, and an electrolyte with a conductivity of 8 mS/cm to 14 mS/cm.

This patent grant represents the addition of new intellectual property in the field of battery technology. While not a regulatory rule imposing obligations on companies, it signifies innovation in materials and design for electrochemical devices, potentially impacting future product development and competitive landscapes for manufacturers in the energy storage sector. No immediate compliance actions are required for regulated entities based on this patent grant.

Source document (simplified)

← USPTO Patent Grants

Electrochemical device and electronic device

Grant US12586793B2 Kind: B2 Mar 24, 2026

Assignee

NINGDE AMPEREX TECHNOLOGY LIMITED

Inventors

Hanxiang Zhang

Abstract

An electrochemical device includes a negative active material layer and an electrolyte. The negative active material layer comprises hard carbon. The negative active material layer has a porosity of 20% to 60%. The electrolyte has a conductivity of 8 mS/cm to 14 mS/cm.

CPC Classifications

H01M 4/587 H01M 4/133 H01M 10/0568 H01M 10/0569 H01M 10/052 H01M 2004/021 H01M 2004/027 H01M 2300/025

Filing Date

2022-03-30

Application No.

17708115

Claims

16

View original document →

Named provisions

Electrochemical device and electronic device

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
USPTO
Published
March 24th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US12586793B2

Who this affects

Applies to
Manufacturers
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Product Development
Geographic scope
United States US

Taxonomy

Primary area
Pharmaceuticals
Operational domain
R&D
Topics
Energy Storage Materials Science

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