相关实验视频
Updated: Jun 19, 2025
06:58
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
4.3K
穆莱特矿物产的坚固固体电解质使得多化物免费的-电池成为可能
Fulong Li1, Chuancong Zhou1, Jie Zhang1
1School of Marine Science and Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China.
Advanced materials (Deerfield Beach, Fla.)
|July 26, 2024
概括
一种新型的矿衍生固态电解质 (Zn-ML) 有效地抑制水性-电池 (ZIB) 的容量衰减. 这种先进的电解质可以防止树突的形成和的溶解,从而使电池性能稳定,持久.
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-电池 (ZIB) 由于树突,活性溶解和聚酸穿而遭受容量减弱.
- 这些问题源于液体电解质和固体电极之间的有害相互作用.
研究的目的:
- 使用矿物衍生材料开发一种稳定的固态电解质,用于ZIBs.
- 为了解决ZIB中的液体电解质的局限性,并提高电池性能和寿命.
主要方法:
- 穆莱特被用作合成基于的固态电解质 (Zn-ML) 的原料,采用离子交换策略.
- Zn-ML 电解质的特点是其电子导电性,扩散能量屏障和聚胺吸附能力.
- 固态Zn//Zn电池和Zn//AC@I2电池被组装并测试以评估电化学性能.
主要成果:
- Zn-ML 电解质的电子导电性较低,扩散能障碍较低,聚酸吸附性强.
- 它有效地隔离了阳极和阴极氧化还原反应,引导可逆沉积,并抑制了溶解和穿.
- 固态Zn//Zn电池实现了2.7V的工作电压窗口和高Zn2+转移数值0.51.
- 固态Zn//AC@I2电池在数千个循环中保持了0.5和1Ag-1的高可逆容量,容量保持率很好 (85.2%和80.7%).
结论:
- 开发的来自矿的固态电解质显著提高了水性ZIB的稳定性和周期寿命.
- 这种来自矿物质的固体电解质为开发高性能和耐用的基于的二次电池提供了有前途的途径.
相关概念视频
02:42Ionic Crystal Structures
14.2K
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...
14.2K
02:54Trends in Lattice Energy: Ion Size and Charge
23.8K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.8K
02:54Molecular and Ionic Solids
17.0K
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...
17.0K