混合离子/电子导电钉有图案的金属阳极用于高性能金属电池
Ying Zhou1, Xiangru Sun2, Peiran Tan2
1Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387 China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071 China.
Journal of colloid and interface science
|January 22, 2025
概括
这项研究开发了使用复合纳米线的稳定表面图案金属阳极. 这种设计有效地抑制了树的生长,并提高了金属电池的性能和可循环使用性.
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:
- 金属阳极对高能量密度电池具有前景,因为其容量大,氧化还原潜力低.
- 挑战包括不稳定的接口和树的生长,阻碍实际应用.
研究的目的:
- 开发一种高度稳定的表面图案金属阳极.
- 为了改善电荷转移动力学和离子分布,用于可逆涂层/脱落.
主要方法:
- 表面图案的金属阳极的制造与复合纳米线 (化和铜纳米颗粒) 在槽中.
- 电化学测试涂/剥离和使用商业阴极的全电池.
主要成果:
- 有图案的阳极在3000小时内以1 mA cm−2/1 mAh cm−2的速度表现出极好的循环性,低超电位为20.3 mV.
- 使用商用LiNi0.6Co0.2Mn0.2O2阴极的全电池显示在0.5°C和2°C的温度下,在600和400个周期内呈现稳定的循环.
结论:
- 开发的表面图案金属阳极为高性能金属电池提供了可行的策略.
- 复合纳米线有效调节沉积,增强接口稳定性.
相关概念视频
Bonding in Metals
46.8K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
46.8K
Electrodeposition
581
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...
581
Metal-Ligand Bonds
20.5K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
20.5K


