Ion Mobility in Crystalline Battery Materials

Author:

Sotoudeh Mohsen1ORCID,Baumgart Sebastian1ORCID,Dillenz Manuel1ORCID,Döhn Johannes1,Forster‐Tonigold Katrin23ORCID,Helmbrecht Katharina1ORCID,Stottmeister Daniel1,Groß Axel12ORCID

Affiliation:

1. Institute of Theoretical Chemistry Ulm University 89081 Ulm Germany

2. Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage 89081 Ulm Germany

3. Karlsruhe Institute of Technology (KIT) P.O. Box 3640 D‐76021 Karlsruhe Germany

Abstract

AbstractIon mobility in electrolytes and electrodes is an important performance parameter in electrochemical devices, particularly in batteries. In this review, the authors concentrate on the charge carrier mobility in crystalline battery materials where the diffusion basically corresponds to hopping processes between lattice sites. However, in spite of the seeming simplicity of the migration process in crystalline materials, the factors governing mobility in these materials are still debated. There are well‐accepted factors contributing to the ion mobility such as the size and the charge of the ions, but they are not sufficient to yield a complete picture of ion mobility. In this review, possible factors influencing ion mobility in crystalline battery materials are critically discussed. To gain insights into these factors, chemical trends in batteries, both as far as the charge carriers as well as the host materials are concerned, are discussed. Furthermore, fundamental questions, for example, about the nature of the migrating charge carriers, are also addressed.

Funder

Deutsche Forschungsgemeinschaft

Dr. Barbara Mez-Starck-Stiftung

Bundesministerium für Wirtschaft und Klimaschutz

Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg

Publisher

Wiley

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment

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