相关实验视频
Updated: Jun 20, 2025

06:58
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
4.3K
在高利用率的水性离子电池最近的进展
Yu Han1, Zichao Yan1, Lei Zhang1
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
ChemSusChem
|July 20, 2024
概括
在水性离子电池 (AZIB) 中提高利用率 (ZUR) 是提高能量密度的关键. 本综述详细介绍了电解质优化和阳极保护等策略,以克服树突成长并实现100%的ZUR.
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 (AZIB) 提供安全,环保和低成本的能源存储.
- 金属阳极至关重要,但由于树突,腐蚀和被动化,其利用率 (ZUR) 较低.
- 通常需要多余的,减少能量密度和增加重量.
研究的目的:
- 综合审查在AZIB中实现高ZUR的进展情况.
- 分析阳极的挑战和故障机制.
- 为设计高ZUR AZIB提供指导方针,包括无金属设计.
主要方法:
- 对电解质优化策略的文献审查和分析.
- 检查阳极保护技术.
- 对改善沉积的基板结构的讨论.
- 对反应接口和故障机制的分析.
主要成果:
- 鉴定了阳极性能的关键挑战,包括树石的形成和副作用.
- 突出了电解质工程和接口稳定方面的有希望的解决方案.
- 提出了实现100%ZUR的策略,包括无金属阳极设计.
结论:
- 优化电解质,保护阳极和构建合适的基板对于AZIB中高ZUR至关重要.
- 解决接口问题和理解故障机制至关重要.
- 实现100%的ZUR,可能通过无金属设计,可以显著提高AZIB的性能和能量密度.
相关概念视频
Standard Electrode Potentials
43.6K
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...
43.6K
Batteries and Fuel Cells
27.2K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
27.2K
Extraction: Advanced Methods
438
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
438

