Towards online tracking of the shuttle effect in lithium sulfur batteries using differential thermal voltammetry
Towards online tracking of the shuttle effect in lithium sulfur batteries using differential thermal voltammetry
复制标题
利用差热伏安法在线跟踪锂硫电池中的穿梭效应
DOI:
10.1016/j.est.2019.01.002
复制
发表时间:
2019
影响因子:
9.4
通讯作者:
Hua X
中科院分区:
文献类型:
--
作者:
Hua X
Lithium sulfur (Li-S) batteries are an important next generation high energy density battery technology. However, the phenomenon known as the polysulfide shuttle causes accelerated degradation, reduced Coulombic efficiency and increased heat generation, particularly towards the end of charge. The real-time detection of the onset of shuttle during charge would improve the safety and increase cycle life of Li-S batteries in real applications. In this study, we demonstrate that the Differential Thermal Voltammetry (DTV) technique can be used for tracking shuttle during Li-S charging. By combining voltage and temperature measurements, DTV is shown to be sensitive to the magnitude of shuttle. We demonstrate significant differences in the DTV curves for Li-S cells charged at different currents and temperatures. Quantitative interpretations of the experimental DTV curves are performed through a thermally-coupled zero-dimensional Li-S model. The DTV technique, together with the model, is a promising tool for real-time detection of shuttle in applications, to inform control algorithms for deciding the end of charging, thus preventing excessive degradation and charge inefficiency.
登录
查看更多内容
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
D. Stroe;V. Knap;M. Swierczynski;E. Schaltz
通讯作者:
E. Schaltz
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Claire Parfitt
通讯作者:
Claire Parfitt
DOI:
10.1039/c5cp05755h
发表时间:
2016-01
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
M. Marinescu;Teng Zhang;G. Offer
通讯作者:
M. Marinescu;Teng Zhang;G. Offer
影响因子:
6.6
作者:
Teng Zhang;M. Marinescu;S. Walus;G. Offer
通讯作者:
G. Offer
影响因子:
9.2
作者:
K. Propp;M. Marinescu;D. Auger;L. O'Neill;A. Fotouhi;Karthik Somasundaram;G. Offer;G. Minton;S. Longo;Mark Wild;V. Knap
通讯作者:
K. Propp;M. Marinescu;D. Auger;L. O'Neill;A. Fotouhi;Karthik Somasundaram;G. Offer;G. Minton;S. Longo;Mark Wild;V. Knap