通过对水性电池的形态转换构建酶保护层
Yifan Pan1, Zhicheng Zuo2, Yucong Jiao1
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China.
Advanced materials (Deerfield Beach, Fla.)
|May 8, 2024
概括
一种新型的酶保护层 (LPL) 有效地抑制水性离子电池 (ZIB) 中金属的副作用. 这种生物灵感涂层增强了实际ZIB应用的循环稳定性和性能.
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
- 生物材料是一种生物材料.
背景情况:
- 水性离子电池 (ZIB) 提供了有前途的应用,但由于金属阳极的副作用而面临挑战.
- 开发稳定的保护层对于提高ZIB的性能和寿命至关重要.
研究的目的:
- 开发一种简单有效的方法,在金属表面上为水性ZIBs创建保护层.
- 为了研究酶保护层 (LPL) 的特性和性能,以抑制副作用并改善 Zn 稳定性.
主要方法:
- 在Zn金属上通过自我吸附策略制备了酶保护层 (LPL).
- 描述了LPL的形态,粘附和与Zn2+离子的相互作用.
- 使用对称Zn电池和Zn/Zn0.25V2O5袋式电池来评估性能.
主要成果:
- LPL表现出强大的粘附性和无间隙形态,有效防止水引起的副作用.
- 溶酶构成变化暴露了功能组,这些功能组修改了电双层 (EDL),减少了溶解能量,并加速了离子扩散.
- 对称Zn电池在77.7%的放电深度 (DOD) 实现了超过1200小时的循环运行.
- Zn/Zn0.25V2O5囊细胞显示超过300个周期,低N/P比 (2.1) 在48%的Zn利用率.
结论:
- 酶保护层为水性ZIB中Zn金属阳极提供了一个稳定的接口.
- 这种简单且低成本的方法显著提高了 Zn 阳极的稳定性和电池性能.
- 该研究为高利用率的水性设备提供了一个可行的策略.
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