期刊
JOURNAL OF POWER SOURCES
卷 273, 期 -, 页码 495-501出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2014.09.127
关键词
Lithium-ion battery; Electrochemical modelling; Battery degradation; Differential thermal voltammetry; Entropy
资金
- EPSRC [EP/I00422X/1]
- EPSRC Funded Energy Storage for Low Carbon Grids Project [EP/K002252/1]
- Engineering and Physical Sciences Research Council [EP/I00422X/1, EP/I038586/1, EP/K002252/1] Funding Source: researchfish
- EPSRC [EP/I038586/1, EP/K002252/1] Funding Source: UKRI
Monitoring of lithium-ion batteries is of critical importance in electric vehicle applications in order to manage the operational condition of the cells. Measurements on a vehicle often involve current, voltage and temperature which enable in-situ diagnostic techniques. This paper presents a novel diagnostic technique, termed differential thermal voltammetry, which is capable of monitoring the state of the battery using voltage and temperature measurements in galvanostatic operating modes. This tracks battery degradation through phase transitions, and the resulting entropic heat, occurring in the electrodes. Experiments to monitor battery degradation using the new technique are compared with a pseudo-2D cell model. Results show that the differential thermal voltammetry technique provides information comparable to that of slow rate cyclic voltammetry at shorter timescale and with load conditions easier to replicate in a vehicle. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据