锂硫电池中 Li2S 沉淀的机理和动力学。
Mechanism and Kinetics of Li2S Precipitation in Lithium-Sulfur Batteries.
机构信息
Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA.
出版信息
Adv Mater. 2015 Sep 16;27(35):5203-9. doi: 10.1002/adma.201501559. Epub 2015 Aug 10.
PMID:26257297
Abstract
The kinetics of Li2 S electrodeposition onto carbon in lithium-sulfur batteries are characterized. Electrodeposition is found to be dominated by a 2D nucleation and growth process with rate constants that depend strongly on the electrolyte solvent. Nucleation is found to require a greater overpotential than growth, which results in a morphology that is dependent on the discharge rate.
摘要
研究了锂硫电池中 Li2 S 在碳上的电沉积动力学。研究发现，电沉积主要由二维成核和生长过程控制，其速率常数强烈依赖于电解质溶剂。成核需要比生长更大的过电位，这导致了形态取决于放电率。
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