一种电化学电池封装材料及其制备方法

By using a blend of styrene block copolymers, maleic anhydride-grafted modified styrene-ethylene/butene-styrene, and synergistic resins in electrochemical battery encapsulation materials, the deficiencies in tensile strength and aging resistance of encapsulation materials were addressed, achieving encapsulation effects with high strength, high toughness, and high durability, thereby improving battery safety and lifespan.

CN121517848BActive Publication Date: 2026-07-17耐砾(辽宁)新材科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
耐砾(辽宁)新材科技有限公司
Filing Date
2025-11-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electrochemical battery encapsulation materials are insufficient in terms of tensile strength and aging resistance, making it difficult to meet the requirements of high-energy-density batteries in complex environments. They are prone to problems such as microcracks, delamination, and bulging, which affect the safety and lifespan of the battery.

Method used

By using a blend of styrene block copolymer, maleic anhydride-grafted modified styrene-ethylene/butene-styrene, and synergistic resin, and through precise control of component ratios, a high-strength, high-toughness, and high-durability composite encapsulation system is formed, enhancing interlayer adhesion and resistance to environmental aging.

Benefits of technology

It significantly improves the tensile strength and durability of battery packaging materials, reduces the risk of thermal runaway caused by packaging failure, extends battery life and improves safety, and is suitable for new energy vehicles and energy storage power stations.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于电池技术领域,具体涉及一种电化学电池封装材料及其制备方法。所述电化学电池封装材料包括以下质量份数的组分:苯乙烯嵌段共聚物20‑30份、马来酸酐接枝改性苯乙烯‑乙烯 / 丁烯‑苯乙烯20‑30份、增效树脂20‑50份、交联剂1‑2份、硅烷偶联剂1‑2份、抗氧剂1‑2份、溶剂300‑350份。本发明制备的电化学电池封装材料综合性能优异,是一款兼具高拉伸强度、优异耐老化性能以及良好综合性能的新型电化学电池封装材料。
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