在Li10P3S12M中化物混合物的分类和分析 (M = Cl, Br, I) 超离子导体的固体电解质
Radian Febi Indrawan1, Kazuhiro Hikima1, Atsunori Matsuda1
1Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tenpaku-cho, Aichi 441-8580, Japan.
ACS applied materials & interfaces
|November 20, 2024
概括
研究人员通过向硫酸盐添加化物来增强电池的固体电解质 (SE). 这提高了离子导电性和接口稳定性,这对于持久的全固态电池 (ASSLB) 至关重要.
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
- 固态电池 固态电池是什么
背景情况:
- 硫酸固体电解质 (SE) 提供优异的离子导电性,但面临的挑战是与阳极和氧化物阴极的接口稳定性.
- 在充放电周期中的降解限制了全固态电池 (ASSLB) 中的SE寿命.
研究的目的:
- 为了提高硫酸SEs.的离子导电性和接口稳定性.
- 研究化物添加剂 (Cl,Br,I) 对SE性能的影响.
- 为下一代ASSLB开发改进的SE材料.
主要方法:
- 合成的化物修饰的二酸盐,其分子比为3Li3PS4到1LiM (M = Cl, Br, I).
- 修改后的SEs的特征性离子导电性和电化学稳定性.
- 制定了一种复合化物 (Br1-I) SE,以结合有益的特性.
主要成果:
- 10P3S12Br (LPSBr) 的离子导电率为1.7mS cm-1和优越的电化学稳定性.
- Li10P3S12I (LPSI) 在2.9 mS cm-1时显示出更高的离子导电性,但稳定性较低.
- 复合化物SE,Li10P3S12Br1-I,证明了更好的离子导电性和接口稳定性.
结论:
- 化物合并是一种有效的策略,可以提高二酸 SEs. 的性能.
- 开发的复合化物SE为提高ASSLBs的循环寿命提供了一个有希望的途径.
- 优化的接口稳定性是实现固态电池充分潜力的关键.
相关概念视频
Qualitative Analysis
22.0K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
For instance, group IV...
22.0K
Ionic Crystal Structures
14.1K
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...
14.1K
Molecular and Ionic Solids
16.9K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
16.9K
Ionic Bonding and Electron Transfer
41.2K
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.
41.2K
Electrolyte and Nonelectrolyte Solutions
62.3K
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
62.3K
Precipitation of Ions
27.6K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
27.6K


