Novel poly naphthalimides, electrodes comprising the same and lithium ion batteries comprising the same

By using a novel polynaphthalenedicarboximide electrode material, the structural instability of electrode materials in lithium-ion batteries was solved, improving the cycle life and electrochemical performance of the battery and achieving efficient lithium-ion storage capacity.

CN122422401APending Publication Date: 2026-07-17周美吟
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Patent Information

Application Number
CN202480024513.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-04-10
Filing Date
2024-04-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The inorganic electrode materials in existing lithium-ion batteries are prone to structural degradation and oxygen loss during long-term cycling, while the organic electrode materials have high solubility in the electrolyte, resulting in structural instability and making it impossible to guarantee long cycle life.

Method used

Using novel polynaphthalenedicarboximide as the electrode material, it forms an electrode by combining with the current collector, and works in conjunction with the electrolyte in the lithium-ion battery to improve the structural integrity and stability of the electrode.

Benefits of technology

It enhances the structural stability and cycle life of the electrode materials in lithium-ion batteries, improves the battery's operating voltage and electrochemical performance, and achieves efficient lithium-ion storage capacity.

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Abstract

本发明提供了一种新颖的聚萘二甲酰亚胺,其包含由下式(I)所示的重复单元:(I)其中,A为氰基取代的芳香胺部分。本发明还提供了一种包含其电极和锂离子电池。
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