粘结剂及其制备方法和应用

By optimizing the rheological properties of the electrode slurry using a binder with a specific composition, the problem of unsuitable shear viscosity during the coating process was solved, resulting in high-quality electrode sheets and improved battery performance.

CN119775947BActive Publication Date: 2026-07-17SHENZHEN YANYI NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN YANYI NEW MATERIALS CO LTD
Filing Date
2024-12-24
Publication Date
2026-07-17

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Abstract

本申请涉及电池技术领域，具体涉及一种粘结剂及其制备方法和应用。本申请中所述粘结剂的制备原料包括第一单体、第二单体、第三单体和第四单体；所述第一单体包括环状酸酐化合物和 / 或非羧基多元胺；所述第二单体包括小分子羧基多元胺；所述第三单体包括聚合物多元胺和 / 或聚合物多元醇；所述第四单体包括异氰酸酯。本申请所述粘结剂在具备优异的粘接性能的基础上，提高了其形成的电极浆料的流变特性，改善了电极浆料的涂布加工性能；进一步形成的电极极片边缘平整度高，所述粘结剂提升了电极极片的质量，可以获得综合性能优异的电池。
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