荷电状态
锂(药物)
电荷(物理)
电池(电)
离子
电流(流体)
化学
阿累尼乌斯方程
分辨率(逻辑)
计算物理学
分析化学(期刊)
原子物理学
机械
热力学
物理
活化能
功率(物理)
内分泌学
人工智能
有机化学
医学
量子力学
色谱法
计算机科学
作者
Florian Grimsmann,T. Gerbert,Felix Brauchle,A. Gruhle,Jürgen Parisi,Martin Knipper
标识
DOI:10.1016/j.jpowsour.2017.08.044
摘要
In order to optimize the operating parameters of battery management systems for electric and hybrid vehicles, great interest has been shown in achieving the maximum permissible charging currents during recuperation, without causing a cell damage due to lithium plating, in relation to the temperature, charge quantity and state of charge. One method for determining these recuperation currents is measuring the cell thickness, where excessively high charging currents can be detected by an irreversible increase in thickness. It is not possible to measure particularly small charge quantities by employing mechanic dial indicators, which have a limited resolution of 1 μm. This is why we developed a measuring setup that has a resolution limit of less than 10 nm using a high-resolution contactless inductance sensor. Our results show that the permissible charging current I can be approximated in relation to the charge quantity x by a correlating function I=a/(x) which is compliant with the Arrhenius law. Small charge quantities therefore have an optimization potential for energy recovery during recuperation.
科研通智能强力驱动
Strongly Powered by AbleSci AI