一种碳纳米管导电浆料的制备方法和碳纳米管导电浆料

By purifying carbon nanotubes at high temperature and modifying them with hyperbranched polymers, combined with dispersants and organic solvents, the dispersibility and stability issues of carbon nanotube conductive pastes were solved, achieving the preparation of low-viscosity and high-stability carbon nanotube conductive pastes.

CN116799212BActive Publication Date: 2026-07-17SHENZHEN JINBAINA NANO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN JINBAINA NANO TECH CO LTD
Filing Date
2023-06-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Carbon nanotubes exhibit poor dispersibility in lithium-ion battery conductive slurries due to metallic impurities and high viscosity, which affects processing and storage stability.

Method used

Carbon nanotube conductive slurry was prepared by high-temperature purification and hyperbranched polymer modification of carbon nanotubes, combined with dispersants and organic solvents, thereby reducing the content of metal impurities and optimizing viscosity.

Benefits of technology

This study achieved low viscosity and excellent dispersibility in carbon nanotube conductive slurry, improving storage stability and dispersion stability to meet market demands.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请涉及锂离子电池技术领域，具体公开了一种碳纳米管导电浆料的制备方法和碳纳米管导电浆料。制备方法包括：S1、准备原料；S2、在有机溶剂中加入分散剂，搅拌处理50‑70min，获得预混料；S3、在预混料中加入超支化聚合物改性纯化碳纳米管，搅拌处理80‑100min，获得混合料；S4、对混合料研磨处理6‑8h，获得碳纳米管导电浆料；其中，超支化聚合物改性纯化碳纳米管为超支化聚合物对纯化碳纳米管处理获得；纯化碳纳米管采用高温对碳纳米管处理获得。该制备方法获得的碳纳米管导电浆料，具有较低的金属杂质以及粘度，表现出优良的分散性以及分散稳定性，提高碳纳米管导电浆料存储稳定性。
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