可聚合的基于溶剂的深度欧特克性聚合物电解质,用于先进的无树突,高速率和长寿命的金属电池
Xiaoxin Liang1, Cunsheng Liu1, Songyi Liao2
1State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China.
ACS applied materials & interfaces
|January 17, 2024
概括
一种新的固体聚合物电解质,聚聚乙烯 (PDES),提高了金属电池的安全性和能量密度. 它提供强大的稳定性,抑制树突,并显示出出色的电化学性能,用于未来的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 聚合物化学 聚合物化学
背景情况:
- 先进的电解质对于高能量密度的金属电池至关重要.
- 关键的期望属性包括稳定性,树抑制和界面兼容性.
研究的目的:
- 开发一种新的固体聚合物电解质,以提高金属电池的性能.
- 合成和表征一种新的聚合性单体及其产生的固体聚合物电解质.
主要方法:
- 从二氧化 (三甲) 硫胺,烯胺和糖酸中合成了一种可聚合的单体.
- 在现场实现了热聚合,形成了多 (PDES) 固体聚合物电解质.
- 评估的离子导电性,氧化潜力,离子转移数,和电化学性能,在的LiFePO4和的LiNi0.8Co0.1Mn0.1O2电池.
主要成果:
- 聚电解质显示出高的离子导电性 (∼1.89 × 10-3 S cm-1) 和高的氧化潜力 (∼5.10 V 与 Li+/Li 相比).
- 实现了高离子转移数 (∼0.63),不易燃性和有效抑制树形成.
- 使用聚乙烯 (PDES) 的电池表现出良好的接口兼容性和电化学性能.
结论:
- 开发的poly (PDES) 固体聚合物电解质为提高金属电池安全性和能量密度提供了一个有前途的解决方案.
- 它的特性使其适用于下一代金属电池的广泛应用.
- 这项研究有助于推进更安全,更高效的储能解决方案.
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