分离器(采油)
电解质
润湿
阳极
电化学
阴极
材料科学
离子
多孔性
电极
电池(电)
化学工程
纳米技术
化学
复合材料
热力学
工程类
物理
物理化学
功率(物理)
有机化学
作者
Dana Jin,Hyeonsoo Kang,Hyung Wan,Gwangmook Kim,Tae-Hoon Kim,Sungsoon Kim,Sang-Jin Choi,Jongbum Won,In-Chul Park,Kyu Yong Jung,Wooyoung Shim
出处
期刊:Nano Letters
[American Chemical Society]
日期:2021-06-07
卷期号:21 (12): 5345-5352
被引量:6
标识
DOI:10.1021/acs.nanolett.1c01621
摘要
The quest for safe and high-performance Li ion batteries (LIBs) motivates intense efforts seeking a high-energy but reliable anode, cathode, and nonflammable electrolyte. For any of these, exploring new electrochemistry methods that enhance safety and performance by employing well-designed electrodes and electrolytes are required. Electrolyte wetting, governed by thermodynamics, is another critical issue in increasing Li ion transport through the separator. Herein, we report an approach to enhancing LIB performance by applying mechanical resonant vibration to increase electrolyte wettability on the separator. Wetting is activated at a resonant frequency with a capillary wave along the surface of the electrolyte, allowing the electrolyte to infiltrate into the porous separator by inertia force. This mechanical resonance, rather than electrochemistry, leads to the high specific capacity, rate capability, and cycling stability of LIBs. The concept of the mechanical approach is a promising yet simple strategy for the development of safer LIBs using liquid electrolytes.
科研通智能强力驱动
Strongly Powered by AbleSci AI