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生物基聚氨酸基作为电池的高压有机电极材料

Tijs Lap¹, Nicolas Goujon^1,2, Daniele Mantione^1,3

¹Joxe Mari Korta Center, POLYMAT University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastiań, Spain.

ACS applied polymer materials

|November 16, 2023

概括

这项研究合成了用于高压电池的新型生物基聚氨酸 (PHAQs). 它们的聚合形式显示出有希望的循环稳定性和容量,解决了可持续能源储存的局限性.

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
可持续能源可持续能源

背景情况:

有机电极材料 (OEM) 为电池提供了可持续的替代品.
由于资源可用性和环境效益,生物基OEM是可取的.
在适用于高压电池应用的生物基OEM厂商中存在差距.

研究的目的:

合成新的生物基聚氨酸 (PHAQs) 和它们的氧化还原聚合物.
为了评估这些材料作为高压金属电池中的阴极组件.
为了提高生物基OEMs的电化学稳定性和性能.

主要方法:

从植物前体合成PHAQ (OHAQ,HHAQ,THAQ) 的合成.
使用甲,甘氨酸或甲连接剂聚合PHAQs.
作为金属电池中的阴极材料,PHAQ聚合物复合物的电化学测试,包括循环稳定性和容量测量.

主要成果:

合成的PHAQ具有高的氧化还原潜力 (3.5-4.0V与Li/Li+) 和初始容量高达381 mAh g-1.
聚合物成功地减轻了溶解问题,增强了循环稳定性.
聚甲) -MWCNT和聚甲) -MWCNT复合材料显示稳定的高压放电 (从4.0V开始与Li/Li+相比) 并在100个循环后保持显著的容量.

结论:

生物基PHAQ及其聚合物是高压电池阴极的可行候选者.
聚合是一种有效的策略,可以提高有机电极材料的耐用性.
这项工作有助于开发可持续和高性能储能解决方案.

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