一种具有成本效益的Ca-doped Li2ZrCl6化物固体电解质,用于全固态电池.
Xingkun Liu1, Fanghui Mi1, Chunwen Sun1
1School of Chemical & Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, P. R. China. csun@cumtb.edu.cn.
研究人员开发了一种具有成本效益的固体电解质,使用替代酸化. 这种材料可以实现高性能全固态电池,具有出色的循环稳定性和容量保留.
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:
- 开发安全高效的固体电解质对于下一代能源储存至关重要.
- 传统的液体电解质带来了安全风险,并限制了电池的性能.
研究的目的:
- 合成一个具有成本效益的Ca2+替代Li2ZrCl6固体电解质.
- 评估其电化学特性和与正极材料的兼容性.
- 为了评估使用这种新型固体电解质的全固态电池的性能.
主要方法:
- 机械化学合成Ca2+替代的Li2ZrCl6固体电解质.
- 电化学表征包括离子导电性和电化学窗口测量.
- 使用LiCoO2阴极的全固态电池的制造和测试.
主要成果:
- 实现了高Li+导电性和固体电解质的广泛电化学窗口.
- 证明了与4个V类阴极的良好兼容性.
- 使用LiCoO2的全固态电池在1C时表现出150个周期的稳定循环,保持其83.1%的容量.
结论:
- 用Ca2+替代的Li2ZrCl6固体电解质是高性能和安全的全固态电池的有希望的候选者.
- 机械化学制造方法为生产先进的固体电解质提供了一种经济有效的途径.
- 这项工作有助于推进电动汽车和便携式电子产品的固态电池技术.
更多相关视频
11:04Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
10:03Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
相关概念视频
Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Acid Halides to Alcohols: LiAlH4 Reduction
The mechanism proceeds in three steps. First, the nucleophilic hydride ion attacks the carbonyl carbon of the acid halide to form a tetrahedral intermediate. Next, the carbonyl group is re-formed, and the halide ion departs as a leaving group, generating an aldehyde. A second nucleophilic attack by the hydride yields an alkoxide ion, which, upon protonation, gives a primary alcohol as...
Trends in Lattice Energy: Ion Size and Charge
Acid Halides to Ketones: Gilman Reagent
As shown below, the mechanism proceeds in two steps. First, one of the alkyl groups of the reagent acts as a nucleophile and attacks the acyl carbon of the acid chloride to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen...
Ionic Bonding and Electron Transfer
