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@ARTICLE{Heckmann:851172,
author = {Heckmann, Andreas and Fromm, Olga and Rodehorst, Uta and
Münster, Patrick and Winter, Martin and Placke, Tobias},
title = {{N}ew insights into electrochemical anion intercalation
into carbonaceous materials for dual-ion batteries: {I}mpact
of the graphitization degree},
journal = {Carbon},
volume = {131},
issn = {0008-6223},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2018-04872},
pages = {201 - 212},
year = {2018},
abstract = {Within the past 5 years, dual-ion batteries and in
particular their all-carbon/all-graphite versions, the
dual-carbon or dual-graphite batteries, have received rising
interest due to the use of carbonaceous active materials for
both, the positive and the negative electrode. With regard
to the capacity determining reactions at the positive
electrode, related to the intercalation of anions, the
influence of the carbon/graphite structure has been by far
not fully understood.In this work, we present a
comprehensive investigation on the structure – property
relationship with special focus on the preparation and
characterization of carbon materials with different degree
of graphitization (DoG) and their electrochemical
performance study as active material for the positive
electrode in dual-ion batteries. We found that an increasing
DoG directly leads to an enhanced specific discharge
capacity, while the crystallite height exhibits only a
negligible contribution to the capacity for the carbons
examined in this work. A further observation is that the
staging mechanism is a major step of the overall anion
storage mechanism, even for carbons possessing a low DoG.
Moreover, an increased DoG leads to a decreased voltage
hysteresis between the charge and discharge step and, thus,
to an enhanced voltage efficiency during charge/discharge
cycling.},
cin = {IEK-12},
ddc = {540},
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:000428133500026},
doi = {10.1016/j.carbon.2018.01.099},
url = {https://juser.fz-juelich.de/record/851172},
}