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@ARTICLE{Otteny:857831,
author = {Otteny, Fabian and Kolek, Martin and Becking, Jens and
Winter, Martin and Bieker, Peter and Esser, Birgit},
title = {{U}nlocking {F}ull {D}ischarge {C}apacities of
{P}oly(vinylphenothiazine) as {B}attery {C}athode {M}aterial
by {D}ecreasing {P}olymer {M}obility {T}hrough
{C}ross-{L}inking},
journal = {Advanced energy materials},
volume = {8},
number = {33},
issn = {1614-6832},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2018-06798},
pages = {1802151 -},
year = {2018},
abstract = {Organic cathode materials are a sustainable alternative to
transition metal oxide‐based compounds in high voltage
rechargeable batteries due to their low toxicity and
availability from less‐limited resources. Important
criteria in their design are a high specific capacity,
cycling stability, and rate capability. Furthermore, the
cathode should contain a high mass loading of active
material and be compatible with different anode materials,
allowing for its use in a variety of cell designs. Here,
cross‐linked poly(3‐vinyl‐N‐methylphenothiazine) as
cathode‐active material is presented, which shows a
remarkable rate capability (up to 10C) and cycling stability
at a high and stable potential of 3.55 V versus Li/Li+ and a
specific capacity of 112 mAh g−1. Its use in full cells
with a high mass loading of 70 $wt\%$ is demonstrated
against lithium titanate as intercalation material as well
as lithium metal, which both show excellent performance.
Through comparison with
poly(3‐vinyl‐N‐methylphenothiazine) the study shows
that changing the structure of the redox‐active polymer
through cross‐linking can lead to a change in
charge/discharge mechanism and cycling behavior of the
composite electrode.
Poly(3‐vinyl‐N‐methylphenothiazine) in its cross‐
and non‐cross‐linked form both show excellent results as
cathode‐active materials with variable specifications
regarding specific capacity, cycling stability, and rate
capability.},
cin = {IEK-12},
ddc = {050},
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:000451181900002},
doi = {10.1002/aenm.201802151},
url = {https://juser.fz-juelich.de/record/857831},
}