不可还原的固体电解质:关于稳定固态电池中的高容量阳极的新视角
Wenxuan Zhao1, Anastasia K Lavrinenko1, Meng-Fu Tu1
1Radiation Science and Technology, Faculty of Applied Sciences, Delft University of Technology, Delft, 2629 JB, The Netherlands.
概括
带有非离子的不可还原固体电解质 (SEs) 能够与金属阳极保持稳定的接口. 对构成,接口和处理的进一步研究是下一代固态电池的关键.
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:
- 不可降解的固体电解质 (SE) 在低氧化状态下利用非框架离子.
- 这些SE与金属和等高容量阳极兼容.
- 干扰工程和空隙形成增强了离子导电性.
研究的目的:
- 探索不可减小的SEs对于先进的全固态电池的潜力.
- 确定关键的研究方向,以实际应用不可缩小的SEs.
- 解决界面兼容性和可扩展性的挑战.
主要方法:
- 对SE属性的实验性表征.
- 对离子扩散和界面行为进行原子模拟.
- 对电化学稳定性和导电性的分析.
主要成果:
- 不可缩小的SE证明了与金属的无分解接口.
- 室温离子导电率超过0.1 mS cm-1.
- 有限的氧化稳定性需要仔细的电解质配对.
结论:
- 不可缩小的SE对高能耗,长寿命的固态电池有希望.
- 在构成多样性,接口工程和可扩展处理方面需要进一步发展.
- 与阳极的兼容性是一个关键的研究途径.
相关概念视频
Batteries and Fuel Cells
30.7K
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...
30.7K
Voltaic/Galvanic Cells
62.9K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
62.9K
Electrolysis
30.1K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
30.1K
Formation of Complex Ions
25.6K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
25.6K
Standard Electrode Potentials
49.7K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
49.7K
Electrogravimetric Analysis: Overview
725
Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying a potential to a pre-weighed electrode submerged in a solution, which results in the desired substance being deposited through reduction at the cathode or oxidation at the anode. The electrode's weight is recorded after deposition, and the difference in weight gives the analyte's weight in the solution.
To test the completeness of the...
To test the completeness of the...
725


