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@ARTICLE{VortmannWesthoven:828962,
author = {Vortmann-Westhoven, Britta and Winter, Martin and Nowak,
Sascha},
title = {{W}here is the lithium? {Q}uantitative determination of the
lithium distribution in lithium ion battery cells:
{I}nvestigations on the influence of the temperature, the
{C}-rate and the cell type},
journal = {Journal of power sources},
volume = {346},
issn = {0378-7753},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2017-02782},
pages = {63 - 70},
year = {2017},
abstract = {With lithium being the capacity determining species in
lithium-ion battery (LIB) cells, the local quantification is
of enormous importance for understanding of the cell
performance. The investigation of the lithium distribution
in LIB full cells is performed with two different cell
types, T-cells of the Swagelok® type and pouch bag cells
with lithium nickel cobalt manganese oxide and mesocarbon
microbead graphite as the active materials as well as a
lithium hexafluorophosphate based organic carbonate solvent
electrolyte. The lithium content of/at the individual
components of the cells is analyzed for different states of
charge (SOCs) by inductively coupled plasma-optical emission
spectrometry (ICP-OES) and the lithium distribution as well
as the loss of active lithium within the cells is calculated
after cycling. With increasing the SOC, the lithium contents
decrease in the cathodes and simultaneously increase in the
anodes. The temperature increase shows a clear shift of the
lithium content in the direction of the anode for the
T-cells. The comparison of the C-rate influence shows that
the lower the C-rate, the more the lithium content on the
electrodes is shifted into the direction of the anode.},
cin = {IEK-12},
ddc = {620},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000398008900008},
doi = {10.1016/j.jpowsour.2017.02.028},
url = {https://juser.fz-juelich.de/record/828962},
}