Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102272
Title: Characterization of LiMn2O4 cathodes by electrochemical strain microscopy
Authors: Alikin, D. O.
Ievlev, A. V.
Luchkin, S. Y.
Turygin, A. P.
Shur, V. Y.
Kalinin, S. V.
Kholkin, A. L.
Шур, В. Я.
Issue Date: 2016
Publisher: American Institute of Physics Inc.
Citation: Characterization of LiMn2O4 cathodes by electrochemical strain microscopy / D. O. Alikin, A. V. Ievlev, S. Y. Luchkin, et al. — DOI 10.1063/1.4943944 // Applied Physics Letters. — 2016. — Vol. 108. — Iss. 11. — 113106.
Abstract: Electrochemical strain microscopy (ESM) is a scanning probe microscopy (SPM) method in which the local electrodiffusion is probed via application of AC voltage to the SPM tip and registration of resulting electrochemical strain. Here, we implemented ESM to measure local strain in bulk LiMn2O4 cathodes of a commercial Li-battery in different states of charge to investigate distribution of Li-ion mobility and concentration. Ramped AC ESM imaging and voltage spectroscopy were used to find the most reliable regime of measurements allowing separating and diminishing different contributions to ESM. This is not a trivial task due to complex geometry of the sample and various obstacles resulting in less predictable contributions of different origins into ESM response: Electrostatic tip-surface interactions, charge injection, electrostriction, and flexoelectricity. Understanding and control of these contributions is an important step towards quantitative interpretation of ESM data. © 2016 AIP Publishing LLC.
Keywords: ELECTRODES
LITHIUM-ION BATTERIES
SCANNING PROBE MICROSCOPY
COMPLEX GEOMETRIES
DIFFERENT ORIGINS
ELECTROCHEMICAL STRAIN
ELECTROCHEMICAL STRAIN MICROSCOPIES
ELECTRODIFFUSION
QUANTITATIVE INTERPRETATION
STATES OF CHARGES
TIP-SURFACE INTERACTION
CATHODES
URI: http://hdl.handle.net/10995/102272
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84961736637
PURE ID: 737244
f5123336-2fe4-46fc-bb7a-14bea48358cd
ISSN: 36951
DOI: 10.1063/1.4943944
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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