Conference Presentation (Invited)

FZJ-2014-00186

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Structure of Emerging Perovskite Oxides: Bridging Length Scales and Unifying Experiment and Theory

Eichel, R.-A. (Corresponding author)FZJ*

2014

Abstract: Impact of Non-Stoichiometry and Aliovalent Doping on Materials Properties of Functional Oxides – from Ferroelectrics to Lithium-Ion Battery Cathode Materials Point defects, such as transition-metal dopants or oxygen vacancies as well as their defect complexes, markedly impact materials properties and thus determine device performance and life time. By using dedicated spectroscopic techniques, the defect structure of oxide ceramics used for energy conversion and storage is analyzed and the impact of corresponding defect chemistry to enhance materials hardening (for piezoelectric compounds), improve the power density (for lithium-ion batteries) is demonstrated. Particularly, atomic-scale mechanisms that limit life time are presented for both types of applications.

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Contributing Institute(s):

1. Grundlagen der Elektrochemie (IEK-9)

Research Program(s):

1. 152 - Renewable Energies (POF2-152) (POF2-152)

Appears in the scientific report 2014

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