Journal Article

PUBDB-2015-01226

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Single Particle Nanomechanics in Operando Batteries via Lensless Strain Mapping

Ulvestad, A. (Corresponding Author) ; Singer, A.>Extern* ; Cho, H.-M. ; Clark, J.CFEL*DESY* ; Harder, R. ; Maser, J. ; Meng, Y. S. ; Shpyrko, O. G.

2014
ACS Publ. Washington, DC

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Please use a persistent id in citations: doi:10.1021/nl501858u

Abstract: We reveal three-dimensional strain evolution in situ of a single LiNi0.5Mn1.5O4 nanoparticle in a coin cell battery under operando conditions during charge/discharge cycles with coherent X-ray diffractive imaging. We report direct observation of both stripe morphologies and coherencystrain at the nanoscale. Our results suggest the critical size for stripe formation is 50 nm. Surprisingly, the single nanoparticle elastic energy landscape, which we map with femtojoule precision, depends on charge versus discharge, indicating hysteresis at the single particle level. This approach opens apowerful new avenue for studying battery nanomechanics, phase transformations, and capacity fade under operando conditions at the single particle level that will enable profound insight into the nanoscale mechanisms that govern electrochemical energy storage systems.

Note: (c) American Chemical Society

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Contributing Institute(s):

1. CFEL-Coherent X-Ray Imaging (FS-CFEL-1)

Research Program(s):

1. Experiments at CFEL (POF2-544) (POF2-544)

Experiment(s):

1. Experiments at CFEL

Appears in the scientific report 2014

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 10 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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