Thermally-driven reactivity of Li0.35La0.55TiO3 solid electrolyte with LiCoO2 cathode

Author:

Chandra Subhash1ORCID,Kim Younggyu1ORCID,Vivona Daniele2,Waluyo Iradwikanari3ORCID,Hunt Adrian3,Schlueter Christoph4,Lee Jeong Beom5,Shao-Horn Yang126ORCID,Yildiz Bilge17ORCID

Affiliation:

1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

2. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

3. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA

4. Photon Science, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany

5. LG Energy Solution, Ltd, LG Science Park, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Korea

6. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

7. Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Abstract

Co diffusion from LCO into LLTO onsets around 300 °C in air, in the absence of any secondary phases. Co diffusion into LLTO decreases the charge transfer resistance, by forming a mixed electronic and ionic conducting zone near the interface.

Funder

National Science Foundation

Bundesministerium für Bildung und Forschung

LG Chem

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment,General Chemistry

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