一个没有膜的可充电海水电池,由格子工程解锁
Wei Wen1, Chao Geng1, Xinran Li2
1School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou, 570228, China.
Advanced materials (Deerfield Beach, Fla.)
|May 1, 2024
概括
研究人员开发了一种用于海水电池的新型二氧化 (TiO2) 阳极. 这种晶格设计的阳极使用天然海水实现了高效的能量储存,克服了可充电水性装置的先前限制.
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
- 可持续能源 可持续能源
背景情况:
- 海水电池提供可持续,安全和经济高效的能源存储.
- 目前的局限性包括缺乏适合充电性海水电池的阳极.
研究的目的:
- 开发用于可充电海水电池的高活性阳极.
- 为了使多个离子从海水电解质中可逆吸收.
主要方法:
- 解剖酶二氧化 (TiO2) 的格子工程.
- 密度函数理论 (DFT) 计算,以了解电荷存储机制.
- 在天然海水和水性Na+电解质中进行电化学性能测试.
主要成果:
- 工程化解剖酶TiO2对可逆的阳离子吸收 (Na+,Mg2+,Ca2+) 具有很高的活性.
- 格子扩张显著降低了TiO2.2内的阴离子扩散障碍.
- 容量在海水中增加了100倍,在水性Na+电解质中增加了200倍.
结论:
- 网格设计的TiO2释放了高性能可充电海水电池的潜力.
- 这一进步使实际的水性海水储能装置更加接近现实.
更多相关视频
09:36In Situ Lithiated Reference Electrode: Four Electrode Design for In-operando Impedance Spectroscopy
Published on: September 12, 2018
8.8K
10:03Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
25.5K
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
Trends in Lattice Energy: Ion Size and Charge
23.9K
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:
23.9K
