相关实验视频
Updated: Jun 12, 2025

06:58
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
4.3K
在离子电池中模拟"曲率增强吸附剂覆盖"用于超符合性和定向性电极沉积
Huibo Wang1,2, Yi Liu3, Mengyu Zhu2
1Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China.
Angewandte Chemie (International ed. in English)
|September 25, 2024
概括
研究人员开发了一种重新排列的 (002) 纹理阳极,灵感来自CEAC,以提高离子电池的性能. 这种设计使沉积均,并抑制副作用,从而延长电池寿命.
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:
- 可逆阳极对于高性能离子电池至关重要.
- 不均的沉积和副作用阻碍了阳极可逆性和电池寿命.
研究的目的:
- 为了设计一个重新排列的 (002) 纹理阳极,用于高度可逆的沉积.
- 为了提高电池中阳极的稳定性和循环性能.
主要方法:
- 使用曲率增强吸附剂覆盖 (CEAC) 启发的工艺,创建重新排列的 (002) 纹理阳极.
- 通过控制的空间沉积速率指导超合规沉积.
- 在低表面能量 (002) 平面上诱导表轴性沉积.
主要成果:
- 实现了均和定向的沉积,使3D骨的超符合性填充成为可能.
- 在82.12%的放电深度下,证明了超过479小时的超长寿命.
- 在高面积容量 (5.15 mAh/cm2) 和低N/P比 (1.63) 的ZnNa2V6O16·3H2O电池中提高了循环性能.
结论:
- 重组的 (002) 纹理阳极设计有效地解决了沉积和副作用的挑战.
- 这种超合规沉积方法显著提高了阳极的可逆性和寿命.
- 这些发现为高性能离子电池的实际应用铺平了道路.
更多相关视频
06:39Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods
Published on: September 14, 2017
13.1K
08:18Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
Published on: October 3, 2015
15.2K
相关概念视频
Colloidal precipitates
524
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
524
Electrodeposition
611
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...
611
Standard Electrode Potentials
43.5K
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...
43.5K