对于离子电池的非水性液体电解质添加剂
Xinhong Hu1, Yirong Wang1, Yi Qiu1
1Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai, 200444, P. R. China.
Chemistry, an Asian journal
|December 24, 2023
概括
离子电池 (SIBs) 提供了一个安全且具有成本效益的储能解决方案. 电解质添加剂是提高SIB性能,提高效率和寿命的关键.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 离子电池 (SIB) 是离子电池的有希望的替代品,因为它们具有丰富的资源,成本更低,安全性更强.
- 电解质对SIB性能至关重要,影响着库伦比效率,能量密度和周期寿命.
研究的目的:
- 审查离子电池电解质的基本原理,包括电极-电解质接口和溶解结构.
- 讨论各种电解质添加剂在提高SIB性能方面的机制.
- 为SIB电解质的未来研究方向提供见解.
主要方法:
- 关于离子电池电解质的科学出版物的文献综述.
- 对控制电解质行为和性能的基本原则的分析.
- 分类和讨论不同类型的电解质添加剂及其功能.
主要成果:
- 电解质成分和添加剂显著影响SIB性能指标.
- 薄膜形成,阻燃和过电保护添加剂提供了明显的好处.
- 了解电极-电解质接口和溶解结构对于电解质设计至关重要.
结论:
- 通过功能添加剂优化SIB电解质对于推进电池技术至关重要.
- 未来的研究应该专注于开发新型添加剂和理解基本的电解质机制,以实现实际应用.
- 电解质工程具有显著的潜力,可以释放离子电池的全部功能.
相关概念视频
Electrolyte and Nonelectrolyte Solutions
63.1K
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
63.1K
Ionic Strength: Effects on Chemical Equilibria
1.5K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
In this solution, the primary...
1.5K
Ionic Bonds
118.5K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
118.5K
Introduction to Electrolytes
10.3K
In humans, electrolytes play a vital role in various physiological processes. Balancing electrolyte levels is essential for normal body functions; their imbalance can be life-threatening. The major electrolytes include sodium, potassium, chloride, calcium, phosphate, and bicarbonate. They are primarily involved in physiological processes, such as nerve signal transmission, membrane trafficking, muscle contraction, buffering body fluids, and balancing water levels in the body.
Role of Sodium
One...
Role of Sodium
One...
10.3K
Batteries and Fuel Cells
27.4K
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...
27.4K
Electrolysis
26.4K
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...
26.4K


