离子电池电极的光驱干燥工艺,使用固态液态过渡聚合物
Yujin Kang1, Minhee Lee2, Donghwan Ji1
1Department of Chemical Engineering, Chung-Ang University, Seoul 06974, Republic of Korea. cylee@cau.ac.kr.
概括
一种新的干燥加工方法使用可光液化阿佐聚合物来制造离子电池电极. 这些聚合物作为临时溶剂,然后作为固体结合剂,改善电极性能和机械性能.
科学领域:
- 材料科学
- 电化学
- 聚合物化学
背景情况:
- 传统的离子电池电极制造通常涉及湿处理,这耗费大量能源,并使用挥发性有机溶剂.
- 开发环保和高效的电极制造方法对于推进电池技术至关重要.
研究的目的:
- 引入使用可光液化聚合物的离子电池电极的干燥处理策略.
- 证明以亚 (Azo) 基聚合物作为临时溶剂和永久结合剂的双重功能.
主要方法:
- 使用基于阿佐的聚合物,在紫外线照射下呈现光液化.
- 纳入阴极复合材料中的聚合物,诱导处理的暂时粘度.
- 移除紫外线,使亚聚合物在室温下重新固化,作为结合剂.
主要成果:
- 在制造的阴极中达到约110 mAh的特定容量.
- 在100个充电-放电周期内保持77%的容量.
- 由于Azo聚合物的聚合物粘合剂功能,提高了电极的机械性能.
结论:
- 基于光液化聚合物的干燥加工策略为离子电池电极制造提供了高效和潜在的绿色替代方案.
- 这种方法成功地将临时溶剂的行为与永久粘合剂的特性相结合,从而提高了电极性能和耐用性.
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