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@ARTICLE{Ma:909300,
author = {Ma, Qianli and Ortmann, Till and Yang, Aikai and Sebold,
Doris and Burkhardt, Simon and Rohnke, Marcus and Tietz,
Frank and Fattakhova-Rohlfing, Dina and Janek, Jürgen and
Guillon, Olivier},
title = {{E}nhancing the {D}endrite {T}olerance of {N}a{SICON}
{E}lectrolytes by {S}uppressing {E}dge {G}rowth of {N}a
{E}lectrode along {C}eramic {S}urface},
journal = {Advanced energy materials},
volume = {12},
issn = {1614-6832},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2022-03110},
pages = {2201680},
year = {2022},
note = {This is an open access article.},
abstract = {Solid-state sodium batteries (SSNBs) have attracted
extensive interest due to their high safety on the cell
level, abundant material resources, and low cost. One of the
major challenges in the development of SSNBs is the
suppression of sodium dendrites during electrochemical
cycling. The solid electrolyte Na3.4Zr2Si2.4P0.6O12 (NZSP)
exhibits one of the best dendrite tolerances of all reported
solid electrolytes (SEs), while it also shows interesting
dendrite growth along the surface of NZSP rather than
through the ceramic. Operando investigations and in situ
scanning electron microscopy microelectrode experiments are
conducted to reveal the Na plating mechanism. By blocking
the surface from atmosphere access with a sodium-salt
coating, surface-dendrite formation is prevented. The
dendrite tolerance of Na | NZSP | Na symmetric cells is then
increased to a critical current density (CCD) of 14 mA
cm−2 and galvanostatic cycling of 1 mA cm−2 and 1 mAh
cm−2 (half cycle) is demonstrated for more than 1000 h.
Even if the current density is increased to 3 mA cm−2 or 5
mA cm−2, symmetric cells can still be operated for 180 h
or 12 h, respectively.},
cin = {IEK-1},
ddc = {050},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {1212 - Materials and Interfaces (POF4-121) / 1223 -
Batteries in Application (POF4-122)},
pid = {G:(DE-HGF)POF4-1212 / G:(DE-HGF)POF4-1223},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000843369700001},
doi = {10.1002/aenm.202201680},
url = {https://juser.fz-juelich.de/record/909300},
}