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@ARTICLE{Kim:885498,
author = {Kim, Un-Hyuck and Park, Geon-Tae and Son, Byoung-Ki and
Nam, Gyeong Won and Liu, Jun and Kuo, Liang-Yin and
Kaghazchi, Payam and Yoon, Chong S. and Sun, Yang-Kook},
title = {{H}euristic solution for achieving long-term cycle
stability for {N}i-rich layered cathodes at full depth of
discharge},
journal = {Nature energy},
volume = {5},
issn = {2058-7546},
address = {London},
publisher = {Nature Publishing Group},
reportid = {FZJ-2020-03879},
pages = {860},
year = {2020},
abstract = {The demand for energy sources with high energy densities
continues to push the limits of Ni-rich layered oxides,
which are currently the most promising cathode materials in
automobile batteries. Although most current research is
focused on extending battery life using Ni-rich layered
cathodes, long-term cycling stability using a full cell is
yet to be demonstrated. Here, we introduce
Li[Ni0.90Co0.09Ta0.01]O2, which exhibits $90\%$ capacity
retention after 2,000 cycles at full depth of discharge
(DOD) and a cathode energy density >850 Wh kg−1. In
contrast, the currently most sought-after
Li[Ni0.90Co0.09Al0.01]O2 cathode loses $~40\%$ of its
initial capacity within 500 cycles at full DOD. Cycling
stability is achieved by radially aligned primary particles
with [003] crystallographic texture that effectively
dissipate the internal strain occurring in the deeply
charged state, while the substitution of Ni3+ with higher
valence ions induces ordered occupation of Ni ions in the Li
slab and stabilizes the delithiated structure.},
cin = {IEK-1},
ddc = {330},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000571739400005},
doi = {10.1038/s41560-020-00693-6},
url = {https://juser.fz-juelich.de/record/885498},
}