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@MISC{Barysch:1042884,
author = {Barysch, Vera and Wolff, Beatrice and Streun, Matthias and
Jakes, Peter and Schleker, Peter Philipp Maria and Granwehr,
Josef},
title = {{R}eplication {D}ata for: {C}ombined dynamic nuclear
polarization and electron paramagnetic resonance at 0.34
{T}esla to investigate electrochemical lithium deposition on
copper},
publisher = {Jülich DATA},
reportid = {FZJ-2025-02691},
year = {2025},
abstract = {Replication Data for: Combined Dynamic Nuclear Polarization
and Electron Paramagnetic Resonance at 0.34 Tesla to
Investigate Electrochemical Lithium Deposition on Copper
Supporting experimental data and simulation results for the
publication DOI: 10.1038/s41598-025-01107-x In the
accompanying publication, plating and dendrite formation in
lithium batteries is studied using a newly developed setup
for dynamic nuclear polarization (DNP) operating at 0.34
Tesla. Electron paramagnetic resonance (EPR) sensitively
detects metallic Li species but misses non-paramagnetic
ones. Nuclear magnetic resonance (NMR) is chemically
selective, yet exhibits a low sensitivity under low-field
conditions. DNP-enhanced NMR overcomes this by transferring
electron spin polarization to 7Li nuclei. Here, correlative
X-band EPR and DNP-enhanced 7Li-NMR of plated lithium is
demonstrated. DNP experiments were conducted in a pulsed
mode to prevent excessive sample heating. The resulting
enhanced 7Li NMR signal allows the observation of
electrochemically plated lithium on copper, harvested from a
Cu vs. Li cell, with an enhancement ε > 400. By changing
the magnetic field strength by a few Gauss, the saturation
of the conduction EPR transition was varied, leading to an
altered shift of metallic 7Li. The corresponding change of
the DNP-polarized 7Li chemical shifts in the range from 240
ppm to 80 ppm, in turn, allowed an indirect,
saturation-based distinction of EPR species. Moreover, an
enhancement ε by a factor of about 2 of the 1H signal from
the surrounding electrolyte of electrochemically deposited
lithium was observed, indicating the potential to
investigate the solid-electrolyte interface (SEI).},
cin = {IET-1 / ITE},
cid = {I:(DE-Juel1)IET-1-20110218 / I:(DE-Juel1)ITE-20250108},
pnm = {1223 - Batteries in Application (POF4-122) / HITEC -
Helmholtz Interdisciplinary Doctoral Training in Energy and
Climate Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF4-1223 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)32},
doi = {10.26165/JUELICH-DATA/FEI8NB},
url = {https://juser.fz-juelich.de/record/1042884},
}