聚合诱导的基于酸的异质金属电池
Zhixu Long1, Wei Xue1, Hongyang Shan1
1College of Aerospace Engineering, Chongqing University, Chongqing 400044, China. sfsong@cqu.edu.cn.
概括
研究人员开发了一种新型的聚合诱导异质配置 (PIHC),以防止电解质在电池中穿. 这种创新方法在室温和低温下保持高离子导电性.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 活动物种的穿是电池性能的一个主要挑战.
- 传统的电解质在稳定性和导电性方面存在局限性,特别是在低温下.
研究的目的:
- 为增强的电池电解质引入聚合诱导异质配置 (PIHC).
- 在一个单一的电池系统中空间限制不同的电解质类型.
主要方法:
- 在阴极上使用交联酸 (FAN) 基电解质制造PIHC.
- 在阳极上集成传统的以太电解质.
- 在不同温度下对离子导电性的表征.
主要成果:
- 在PIHC有效地抑制了有害的活动物种的穿.
- 保持了超高的离子导电性:29.6mS cm-1在25°C.
- 显著的4.44mS cm-1的离子导电性在-70°C时保持在 -70°C.
结论:
- 该PIHC战略为稳定和高性能电池提供了一个有前途的解决方案.
- 这种配置使电解质在阴极和阳极具有不同的特性.
- 该方法在广泛的温度范围内确保了出色的离子导电性,这对于先进的能量存储至关重要.
相关概念视频
Batteries and Fuel Cells
30.8K
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...
30.8K
Alkali Metals
24.2K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.2K
DC Battery
1.2K
A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
1.2K
Bonding in Metals
52.1K
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”.
52.1K
Metallic Solids
20.5K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.5K
Metal-Ligand Bonds
24.1K
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...
24.1K


