基于结合和非结合的船体基聚合物阳极材料的高性能有机电池
Jinkai Zhang1, Xiaoyue Mu1, Ying Mu1
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
ACS omega
|March 25, 2024
概括
三种新型芳香的希夫基聚合物被合成并测试为离子电池 (LIB) 的阳极材料. 这些有机材料表现出高的特异性和优异的速率能力,显示出先进的LIB应用的前景.
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:
- 有机材料越来越多地被探索为离子电池 (LIB) 的阳极材料,因为它们具有丰富,低成本和高理论容量等优势.
- 船基聚合物,特别是芳香类型,具有独特的结构多样性和电子特性,适合储能应用.
研究的目的:
- 合成和评估三种芳香的希夫基聚合物作为LIBs的潜在阳极材料.
- 研究这些新型有机阳极材料的电化学性能,包括特定容量和速率能力.
主要方法:
- 三种芳香的希夫基聚合物的合成:TTD-PDA (结合),TTD-EDA (非结合) 和GA-PDA (非结合).
- 合成的聚合物作为LIBs中的阳极材料的电化学测试.
- 在各种电流密度 (100 mA g-1, 2 A g-1, 10 A g-1) 的性能评估.
主要成果:
- TTD-PDA,TTD-EDA和GA-PDA分别表现出651,492和416 mAh的高可逆特异性容量,分别在100 mA g-1下为g-1.
- 观察到令人满意的速率能力,容量为210,90和178mAhg-1在2Ag-1上,以及105,57和122mAhg-1在10Ag-1.0上.
- 所有合成的希夫基聚合物都显示出作为LIBs有前途的阳极材料的潜力.
结论:
- 合成的芳香希夫基聚合物是LIBs的有效阳极材料,具有高特异性和良好的速率性能.
- 该研究扩展了有机阳极材料的设计原则,突出了希夫基聚合物的潜力,用于高性能离子电池.
- 这些材料显示出开发下一代LIBs具有增强的能量存储能力的前景.
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