在固态电池中,丰富的分层氧化物阴极/硫化物电解质接口
Yiman Feng1,2,3, Zhixing Wang1,2,3, Duo Deng4
1School of Metallurgy and Environment and Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, P. R. China.
ACS applied materials & interfaces
|July 9, 2024
概括
本综述探讨了Ni丰富的层状氧化物阴极和全固态电池中的硫化物固体电解质之间的关键接口不稳定性. 讨论了提高接口稳定性的策略,以实现更安全,高能量密度的电池.
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:
- 富含层氧化物 (NRLO) 阴极为下一代离子电池提供高特异性容量和低成本.
- 目前的NRLO阴极面临着结构和界面不稳定的挑战,易燃的有机液体电解质加剧了这种不稳定性.
- 硫化物固体电解质是一种更安全的替代品,因为其高离子导电性和可加工性,对于全固态电池 (ASSLB) 至关重要.
研究的目的:
- 在ASSLB中审查和总结NRLO阴极和硫化物固体电解质之间的接口挑战.
- 探索和提出改善这些系统接口稳定的策略.
- 突出迫切的科学和技术挑战,并为增强的ASSLBs提出未来研究方向.
主要方法:
- 关于NRLO阴极/硫化物电解质接口的现有研究的文献综述和综合.
- 对接口问题的分析和建议的解决方案.
- 确定关键的研究缺口和未来方向.
主要成果:
- NRLO阴极和硫化物固体电解质之间的界面不相容是高性能ASSLBs的一个关键瓶.
- 存在各种策略来缓解接口问题,尽管需要进一步优化.
- 了解和应对这些界面挑战是释放基于NRLO的ASSLB潜力的关键.
结论:
- 为了推进硫化物ASSLBs,提高富含Ni的层氧化物阴极和硫化物固体电解质之间的接口稳定性至关重要.
- 需要进一步的研究来克服当前的科学和技术障碍.
- 本综述为开发更安全,高能量密度的ASSLB提供了全面的理解和建议.
更多相关视频
相关概念视频
Batteries and Fuel Cells
27.3K
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...
27.3K
Ionic Crystal Structures
14.3K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
14.3K
Ionic Bonding and Electron Transfer
41.4K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.
41.4K
Electrodeposition
625
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...
625
Formation 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


