The development of alternative anode materials with higher volumetric and gravimetric capacity allowing for fast delithiation and, even more important, lithiation is crucial for next-generation lithium-ion batteries. Herein, the development of a completely new active material is reported, which follows an insertion-type lithiation mechanism, metal-doped CeO  . Remarkably, the introduction of carefully selected dopants, herein exemplified for iron, results in an increase of the achievable capacity by more than %, originating from the reduction of the dopant to the metallic state and additional space for the lithium ion insertion due to a significant o-centering of the dopant atoms in the crystal structure, away from the original Ce site. In addition to the out- standing performance of such materials in high-power lithium-ion full-cells, the selective reduction of the iron dopant under preservation of the crystal structure of the host material is expected to open up a new field of research.

Introducing Highly Redox‐Active Atomic Centers into Insertion‐Type Electrodes for Lithium‐Ion Batteries / Ma, Yanjiao; Ma, Yuan; Giuli, Gabriele; Euchner, Holger; Groß, Axel; Lepore, Giovanni Orazio; d'Acapito, Francesco; Geiger, Dorin; Biskupek, Johannes; Kaiser, Ute; Schütz, Hanno M.; Carlsson, Anna; Diemant, Thomas; Behm, Rolf Jürgen; Kuenzel, Matthias; Passerini, Stefano; Bresser, Dominic. - In: ADVANCED ENERGY MATERIALS. - ISSN 1614-6832. - ELETTRONICO. - (2020), pp. 0-0. [10.1002/aenm.202000783]

Introducing Highly Redox‐Active Atomic Centers into Insertion‐Type Electrodes for Lithium‐Ion Batteries

Lepore, Giovanni Orazio;
2020

Abstract

The development of alternative anode materials with higher volumetric and gravimetric capacity allowing for fast delithiation and, even more important, lithiation is crucial for next-generation lithium-ion batteries. Herein, the development of a completely new active material is reported, which follows an insertion-type lithiation mechanism, metal-doped CeO  . Remarkably, the introduction of carefully selected dopants, herein exemplified for iron, results in an increase of the achievable capacity by more than %, originating from the reduction of the dopant to the metallic state and additional space for the lithium ion insertion due to a significant o-centering of the dopant atoms in the crystal structure, away from the original Ce site. In addition to the out- standing performance of such materials in high-power lithium-ion full-cells, the selective reduction of the iron dopant under preservation of the crystal structure of the host material is expected to open up a new field of research.
2020
0
0
Goal 7: Affordable and clean energy
Goal 9: Industry, Innovation, and Infrastructure
Goal 12: Responsible consumption and production
Ma, Yanjiao; Ma, Yuan; Giuli, Gabriele; Euchner, Holger; Groß, Axel; Lepore, Giovanni Orazio; d'Acapito, Francesco; Geiger, Dorin; Biskupek, Johannes; Kaiser, Ute; Schütz, Hanno M.; Carlsson, Anna; Diemant, Thomas; Behm, Rolf Jürgen; Kuenzel, Matthias; Passerini, Stefano; Bresser, Dominic
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1198408
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