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Both Vegard and plausible non-Vegard contributions to the ESM signal were identified in electrochemical hysteresis loops obtained on fresh and aged samples. In the fresh cathodes, the Vegard contribution dominates the signal, while in the aged samples different shape of hysteresis loops indicates an additional plausible non-Vegard contribution. Non-uniform spatial distribution of the electrochemical loop opening in LiMn2O4 particles studied in the aged samples indicates stronger variation of the Li diffusion coefficient at the microscale as compared to the fresh specimens. Time spectroscopy measurements revealed a suppression of the local Li diffusivity in aged samples. The mechanisms of the cathode aging are discussed in the context of observed nanoscale ESM response.<\/jats:p>","DOI":"10.1063\/1.4927816","type":"journal-article","created":{"date-parts":[[2015,8,20]],"date-time":"2015-08-20T00:30:38Z","timestamp":1440030638000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":51,"title":["Li transport in fresh and aged LiMn2O4 cathodes via electrochemical strain microscopy"],"prefix":"10.1063","volume":"118","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1923-7449","authenticated-orcid":false,"given":"Sergey Yu.","family":"Luchkin","sequence":"first","affiliation":[{"name":"University of Aveiro 1 Department of Materials and Ceramic Engineering and CICECO, , 3810-193 Aveiro, Portugal"}]},{"given":"Konstantin","family":"Romanyuk","sequence":"additional","affiliation":[{"name":"University of Aveiro 1 Department of Materials and Ceramic Engineering and CICECO, , 3810-193 Aveiro, Portugal"},{"name":"Ural Federal University 2 Institute of Natural Sciences, , 51 Lenin Avenue, 620000 Ekaterinburg, Russia"}]},{"given":"Maxim","family":"Ivanov","sequence":"additional","affiliation":[{"name":"University of Aveiro 1 Department of Materials and Ceramic Engineering and CICECO, , 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3432-7610","authenticated-orcid":false,"given":"Andrei L.","family":"Kholkin","sequence":"additional","affiliation":[{"name":"University of Aveiro 1 Department of Materials and Ceramic Engineering and CICECO, , 3810-193 Aveiro, Portugal"},{"name":"Ural Federal University 2 Institute of Natural Sciences, , 51 Lenin Avenue, 620000 Ekaterinburg, Russia"}]}],"member":"317","published-online":{"date-parts":[[2015,8,19]]},"reference":[{"key":"2023062512551889400_c1","doi-asserted-by":"publisher","first-page":"A1052","DOI":"10.1149\/1.3464773","volume":"157","year":"2010","journal-title":"J. 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