Method for manufacturing an electrode for an electric storage device and apparatus for manufacturing an electrode for an electric storage device

A nanographene and amorphous carbon-coated electrode with a textured surface addresses the limitations of graphite and carbon nanowalls, enhancing battery performance and stability through plasma treatment.

JP7768524B2Active Publication Date: 2025-11-12NAT UNIV CORP TOKAI NAT HIGHER EDUCATION & RES SYST +1
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Patent Information

Application Number
JP2025057403
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-03-29
Publication Date
2025-11-12
Estimated Expiration
2043-08-07

AI Technical Summary

Technical Problem

Conventional electrodes using graphite or carbon nanowalls in active material layers face challenges in achieving high battery performance due to production costs and structural instability during transportation or storage.

Method used

An electrode with a metal substrate coated by a thin film of nanographene and amorphous carbon active material layer, featuring a finely textured surface to enhance surface area and promote metal deposition, is developed, using plasma treatment to efficiently form the active material layer.

Benefits of technology

The electrode achieves improved battery performance with increased charge capacity and reduced risk of structural damage during manufacturing, facilitating efficient and stable production.

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Patent Text Reader

Abstract

To provide an electrode for an energy storage device that has an active material layer with a novel structure consisting mainly of carbon nanostructure and that can achieve high battery performance.SOLUTION: An electrode for an energy storage device comprises a metal substrate that constitutes a current collector and has a micro-uneven structure formed on its surface, and an active material layer consisting mainly of carbon nanostructure composed of nanographene and amorphous carbon, and densely covering the surface of the uneven structure, in which metal atoms involved in the charging and discharging of the energy storage device are deposited on the surface when the device is charged.SELECTED DRAWING: Figure 2
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Citation Information

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