相关实验视频
Updated: Jun 22, 2025
06:58
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
4.3K
在Zn金属阳极上组装成固体电解质间相的性纳米球,用于可逆的高速Zn离子存储
Hua Shao1,2, Xiaoyu Zhang1,2, Yurong Zhou3
1College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China.
Small (Weinheim an der Bergstrasse, Germany)
|June 28, 2024
概括
研究人员开发了一种保护性ZnSnO3空心纳米层,用于水性离子电池中的阳极. 这项创新提高了稳定性和循环寿命,解决了改善能源存储的树问题.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 水性离子电池 (ZIB) 由于安全性和成本,有望成为后离子储能电池.
- 阳极树突的形成限制了ZIB的寿命和可逆性.
研究的目的:
- 为了提高ZIB中阳极的稳定性和性能.
- 为了减轻树突的形成,并提高电化学可逆性.
主要方法:
- 在Zn阳极表面的ZnSnO3空洞纳米层保护层的现场生长.
- 组装和测试一个ZnSnO3@Zn//AC离子混合超级电容器 (ZHSC).
主要成果:
- SnO3层创造了更多的性位,促进了均的沉积.
- 增强的结合能和空洞结构改善了Zn离子扩散和反应动力学.
- 该ZHSC证明了4000个周期的长周期寿命,容量保持率为79.6%.
结论:
- 这种ZnSnO3空洞纳米圈间相有效地抑制了树突.
- 这一策略提高了ZIB的电化学可逆性和周期寿命.
- 该方法为储能中先进的阳极设计提供了一条新的途径.
相关概念视频
03:45Formation of Complex Ions
23.6K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.6K
03:02Standard Electrode Potentials
43.7K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
43.7K