一个自我愈合和汗水充电的水凝电解质,用于全集灵活超级电容器
Xu Yang1, Xinyue Cheng1, Shiqin Liao2
1Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China.
ACS applied materials & interfaces
|September 9, 2024
概括
灵活的固态超级电容器 (SC) 使用自愈合的水凝来提高可穿戴电子产品的耐用性. 这些先进的SCs即使在机械损坏后也表现出稳定的性能,并且可以通过人类汗水来提供动力.
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
- 可穿戴技术可穿戴技术
背景情况:
- 灵活的固态超级电容器 (SC) 对可穿戴能源织品具有前景.
- 机械不稳定性和接口损坏限制了它们的实际应用.
- 需要新的自我愈合的水凝来克服这些局限性.
研究的目的:
- 开发可自愈的水凝,用于灵活的SC中强大的电极-电解质接口.
- 调查这些SC的电化学性能和机械耐用性.
- 为了证明基于汗水的电解质对可穿戴能源设备的潜力.
主要方法:
- 聚烯酸) - 铁基是通过热聚合合成的.
- 复合水凝电极 (MnO2@CC在PAA-Fe水凝中) 被制造出来.
- 在机械应力和自我愈合条件下组装和测试了对称的SC (MSC).
主要成果:
- PAA-Fe水凝表现出极好的自我愈合能力,机械强度 (45.80 kPa) 和离子导电率 (0.076 S cm-1).
- 全合一的MSC显示出显著的特定电容 (30.98F g-1),周期稳定 (87.24%在5000个周期后) 和自我愈合能力 (85.34%的保留).
- MSCs使用人类汗水中的NaCl证明了稳定的运行,在三次重复使用后保持了90.05%的电容.
结论:
- 在PAA-Fe水凝中的可逆金属协调键能够实现超稳定的电极-电解质接口和自我愈合.
- 开发的全合一MSC为可穿戴应用提供了卓越的机械和电化学稳定性.
- 这项工作为基于织物的SC和由生物流体驱动的先进可穿戴能源织品铺平了道路.
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