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@ARTICLE{Yu:885675,
author = {Yu, Shicheng and Xu, Qi and Tsai, Chih-Long and Hoffmeyer,
Marija and Wiemhöfer, Hans-Dieter},
title = {{A} flexible all–solid–state {L}i–ion battery
manufacturable in ambient atmosphere},
journal = {ACS applied materials $\&$ interfaces},
volume = {12},
number = {33},
issn = {1944-8252},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2020-04006},
pages = {37067 - 37078},
year = {2020},
abstract = {The rational design and exploration of safe, robust, and
inexpensive energy storage systems with high flexibility are
greatly desired for integrated wearable electronic devices.
Herein, a flexible all-solid-state battery possessing
competitive electrochemical performance and mechanical
stability has been realized by easy manufacture processes
using carbon nanotube enhanced phosphate electrodes of
LiTi2(PO4)3 and Li3V2(PO4)3 and a highly conductive solid
polymer electrolyte made of polyphosphazene/PVDF-HFP/LiBOB
[PVDF-HFP, poly(vinylidene
fluoride-co-hexafluoropropylene)]. The components were
chosen based on their low toxicity, systematic
manufacturability, and (electro-)chemical matching in order
to ensure ambient atmosphere battery assembly and to reach
high flexibility, good safety, effective interfacial
contacts, and high chemical and mechanical stability for the
battery while in operation. The high energy density of the
electrodes was enabled by a novel design of the
self-standing anode and cathode in a way that a large amount
of active particles are embedded in the carbon nanotube
(CNT) bunches and on the surface of CNT fabric, without
binder additive, additional carbon, or a large metallic
current collector. The electrodes showed outstanding
performance individually in half-cells with liquid and
polymer electrolyte, respectively. The prepared flexible
all-solid-state battery exhibited good rate capability, and
more than half of its theoretical capacity can be delivered
even at 1C at 30 °C. Moreover, the capacity retentions are
higher than $75\%$ after 200 cycles at different current
rates, and the battery showed smaller capacity fading after
cycling at 50 °C. Furthermore, the promising practical
possibilities of the battery concept and fabrication method
were demonstrated by a prototype laminated flexible cell.},
cin = {IEK-9},
ddc = {600},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32687702},
UT = {WOS:000563074900024},
doi = {10.1021/acsami.0c07523},
url = {https://juser.fz-juelich.de/record/885675},
}