A limitation map of performance for porous electrodes in lithium-ion batteries

iScience

Lowie Henderick¹  An Hardy²  Behnam Ghalami Choobar³  Mohammadhosein Safari³  Christophe Detavernier⁴  Hamid Hamed⁴  Jan D'Haen⁴ 

[1] Energyville, Thor Park 8320, B-3600 Genk, Belgium;IMEC Division IMOMEC, BE-3590 Belgium;Department of Solid State Sciences, Ghent University, Krijgslaan 281 S1, 9000 Gent, Belgium;Institute for Materials Research (IMO-imomec), UHasselt, Martelarenlaan 42, B-3500 Hasselt, Belgium;

关键词: Electrochemistry;    Energy systems;    Materials application;   

DOI  :  

来源: DOAJ

【 摘 要 】

Summary: Driven by expanding interest in battery storage solutions and the success story of lithium-ion batteries, the research for the discovery and optimization of new battery materials and concepts is at peak. The generation of experimental (dis)charge data using coin cells is fast and feasible and proves to be a favorite practice in the battery research labs. The quantitative interpretation of the data, however, is not trivial and decelerates the process of screening and optimization of electrode materials and recipes. Here, we introduce the concept of polarographic map and demonstrate how it can be leveraged to quantify the contribution of different non-equilibrium phenomena to the performance limitation and total polarization of a lithium-ion cell. We showcase the accuracy and diagnostic power of this approach by preparing and analyzing the electrochemical performance of 54 sets of LiNixMnyCo1-x-yO2 electrodes with different formulations and designs discharged in a range of 0.2C–5C.

【 授权许可】

Unknown