一种用于锂离子电池的耐高温纤维素隔膜的制备方法、隔膜及电池
A high-temperature resistant cellulose membrane was prepared by ball milling pretreatment of bacterial cellulose dispersion and hot pressing treatment with dropwise addition of pore-forming agent. This solved the problems of thermal shrinkage and insufficient mechanical strength of lithium-ion batteries at high temperatures, and achieved efficient lithium-ion migration and improved battery safety.
CN119674439BActive Publication Date: 2026-07-17SHENZHEN HIGHPOWER TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN HIGHPOWER TECH CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-07-17
Smart Images
Figure CN119674439B_ABST
Abstract
本申请涉及一种用于锂离子电池的耐高温纤维素隔膜的制备方法、隔膜及电池。该制备方法，包括：对细菌纤维素分散液进行球磨预处理，得到预处理分散液；对所述预处理分散液进行过滤，同时向其滴加造孔剂，得到细菌纤维素膜；将所述细菌纤维素膜进行热压处理得到细菌纤维素隔膜。本申请提供的方案，能够提高隔膜的耐高温性能，在较高温度下仍能保持较好得到尺寸稳定性和结构完整性，同时具有丰富且适宜的孔隙结构，能够为锂离子的迁移提供大量通道，从而使电池保持较高的充放电效率和较好的安全性能。
Need to check novelty before this filing date? Find Prior Art