{"title":"Decouple charge transfer reactions in the Li-ion battery","authors":"Yuxuan Bai , Qiu-An Huang , Kai Wu , Jiujun Zhang","doi":"10.1016/j.jechem.2024.02.003","DOIUrl":null,"url":null,"abstract":"<div><p>In the development of Li-ion batteries (LIBs) with high energy/power density, long cycle-life, fast charging, and high safety, an insight into charge transfer reactions is required. Although electrochemical impedance spectroscopy (EIS) is regarded as a powerful diagnosis tool, it is not a direct but an indirect measurement. With respect to this, some critical questions need to be answered: (i) why EIS can reflect the kinetics of charge transfer reactions; (ii) what the inherent logical relationship between impedance models under different physical scenes is; (iii) how charge transfer reactions compete with each other at multiple scales. This work aims at answering these questions via developing a theory framework so as to mitigate the blindness and uncertainty in unveiling charge transfer reactions in LIBs. To systematically answer the above questions, this article is organized into a three-in-one (review, tutorial, and research) type and the following contributions are made: (i) a brief review is given for impedance model development of the LIBs over the past half century; (ii) an open source code toolbox is developed based on the unified impedance model; (iii) the competive mechanisms of charge transfer reactions are unveiled based on the developed EIS-Toolbox@LIB. This work not only clarifies theoretical fundamentals, but also provides an easy-to-use open source code for EIS-Toolbox@LIB to optimize fast charge/discharge, mitigate cycle aging, and improve energy/power density.</p></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1000,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Energy Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2095495624001268","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Energy","Score":null,"Total":0}
引用次数: 0
Abstract
In the development of Li-ion batteries (LIBs) with high energy/power density, long cycle-life, fast charging, and high safety, an insight into charge transfer reactions is required. Although electrochemical impedance spectroscopy (EIS) is regarded as a powerful diagnosis tool, it is not a direct but an indirect measurement. With respect to this, some critical questions need to be answered: (i) why EIS can reflect the kinetics of charge transfer reactions; (ii) what the inherent logical relationship between impedance models under different physical scenes is; (iii) how charge transfer reactions compete with each other at multiple scales. This work aims at answering these questions via developing a theory framework so as to mitigate the blindness and uncertainty in unveiling charge transfer reactions in LIBs. To systematically answer the above questions, this article is organized into a three-in-one (review, tutorial, and research) type and the following contributions are made: (i) a brief review is given for impedance model development of the LIBs over the past half century; (ii) an open source code toolbox is developed based on the unified impedance model; (iii) the competive mechanisms of charge transfer reactions are unveiled based on the developed EIS-Toolbox@LIB. This work not only clarifies theoretical fundamentals, but also provides an easy-to-use open source code for EIS-Toolbox@LIB to optimize fast charge/discharge, mitigate cycle aging, and improve energy/power density.
期刊介绍:
The Journal of Energy Chemistry, the official publication of Science Press and the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, serves as a platform for reporting creative research and innovative applications in energy chemistry. It mainly reports on creative researches and innovative applications of chemical conversions of fossil energy, carbon dioxide, electrochemical energy and hydrogen energy, as well as the conversions of biomass and solar energy related with chemical issues to promote academic exchanges in the field of energy chemistry and to accelerate the exploration, research and development of energy science and technologies.
This journal focuses on original research papers covering various topics within energy chemistry worldwide, including:
Optimized utilization of fossil energy
Hydrogen energy
Conversion and storage of electrochemical energy
Capture, storage, and chemical conversion of carbon dioxide
Materials and nanotechnologies for energy conversion and storage
Chemistry in biomass conversion
Chemistry in the utilization of solar energy