相关实验视频
Updated: Aug 31, 2025

06:58
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
4.4K
抗树突短路的快充酸电池
Quanquan Pang1, Jiashen Meng2,3,4, Saransh Gupta5
1School of Materials Science and Engineering, Peking University, Beijing, China. qqpang@pku.edu.cn.
Nature
|August 24, 2022
概括
这项研究引入了一种具有盐电解质的新型酸电池,使得快速充电和数百个循环无需形成树. 这种可充电,耐火的电池为离子技术提供了低成本,可回收的替代品.
科学领域:
- 电化学
- 材料科学
- 能量储存
背景情况:
- 基于金属的电池提供高能量密度,但面临着树形成和可回收性方面的挑战.
- 现有的电池技术受到室温离子液体中低容量化合物和高极化阻碍.
研究的目的:
- 开发一个快速充电,高性能-电池.
- 克服金属电池的树形成和低充电率的局限性.
主要方法:
- 使用高AlCl3含量的盐电解质 (NaCl-KCl-AlCl3) 进行轻松的Al3+溶解.
- 使用元素作为正极材料.
- 研究了与之间的多步转换路径,用于快速充电.
主要成果:
- 展示了一种双向,快速充电的-电池,
- 在高充电速度下实现了数百个循环,
- 预计单元级成本低于当前离子技术的六分之一.
结论:
- 开发的-电池化学是有前途的低成本,可充电,耐火,可回收的储能解决方案.
- 地球上丰富的材料和适度高温的操作提高了其可扩展性和可持续性.
- 这项技术解决了当前电池系统的关键局限性,为更安全,更经济的储能铺平了道路.
相关概念视频
Batteries and Fuel Cells
27.9K
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...
27.9K
Charging Conductors By Induction
8.1K
The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
8.1K
DC Battery
850
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,...
850
Schottky Barrier Diode
464
Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
464

