Green and low-cost synthesis of LiNi0.8Co0.15Al0.05O2 cathode material for Li-ion batteries

Wanmin Liu, M.L. Qin, Chengwei Gao, Donghong Yu, Yuanzheng Yue

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

A spherical LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) cathode material is synthesized from the precursor Ni 0.8 Co 0.15 Al 0.05 (OH) 2 obtained through a co-precipitation method using potassium sodium tartrate for the first time as a chelating agent. X-ray diffraction analysis proves that the as-prepared NCA is a hexagonal phase with perfectly ordered layered structure. Scanning electron microscope study shows that the morphology and size of NCA remain nearly the same as those of the precursor. Clear crystal lattice fringes arranged along the (0 0 3) plane can be found in transmission electron microscope images. The NCA material exhibits excellent electrochemical properties with initial charge/discharge capacities of 245.6/204.4, 201.2/196.3, 189.0/182.2 and 177.3/171.4 mAh·g −1 at 0.1, 0.2, 0.5 and 1.0 C, respectively, and charge/discharge capacity retentions of 91.9%/91.5% after 100cycles at 0.5 C in the voltage range of 2.8–4.3 V (vs. Li/Li + ).

OriginalsprogEngelsk
TidsskriftMaterials Letters
Vol/bind246
Sider (fra-til)153-156
Antal sider4
ISSN0167-577X
DOI
StatusUdgivet - jul. 2019

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electric batteries
Cathodes
Electron microscopes
electron microscopes
cathodes
synthesis
Chelating Agents
Coprecipitation
Chelation
Electrochemical properties
crystal lattices
Crystal lattices
X ray diffraction analysis
Potassium
Costs
potassium
ions
Sodium
sodium
Scanning

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title = "Green and low-cost synthesis of LiNi0.8Co0.15Al0.05O2 cathode material for Li-ion batteries",
abstract = "A spherical LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) cathode material is synthesized from the precursor Ni 0.8 Co 0.15 Al 0.05 (OH) 2 obtained through a co-precipitation method using potassium sodium tartrate for the first time as a chelating agent. X-ray diffraction analysis proves that the as-prepared NCA is a hexagonal phase with perfectly ordered layered structure. Scanning electron microscope study shows that the morphology and size of NCA remain nearly the same as those of the precursor. Clear crystal lattice fringes arranged along the (0 0 3) plane can be found in transmission electron microscope images. The NCA material exhibits excellent electrochemical properties with initial charge/discharge capacities of 245.6/204.4, 201.2/196.3, 189.0/182.2 and 177.3/171.4 mAh·g −1 at 0.1, 0.2, 0.5 and 1.0 C, respectively, and charge/discharge capacity retentions of 91.9{\%}/91.5{\%} after 100cycles at 0.5 C in the voltage range of 2.8–4.3 V (vs. Li/Li + ).",
keywords = "Energy storage and conversion, Functional, Green synthesis, Nickel-rich lithium cobalt oxide, Potassium sodium tartrate",
author = "Wanmin Liu and M.L. Qin and Chengwei Gao and Donghong Yu and Yuanzheng Yue",
year = "2019",
month = "7",
doi = "10.1016/j.matlet.2019.03.064",
language = "English",
volume = "246",
pages = "153--156",
journal = "Materials Letters",
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publisher = "Elsevier",

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Green and low-cost synthesis of LiNi0.8Co0.15Al0.05O2 cathode material for Li-ion batteries. / Liu, Wanmin; Qin, M.L.; Gao, Chengwei; Yu, Donghong; Yue, Yuanzheng.

I: Materials Letters, Bind 246, 07.2019, s. 153-156.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Green and low-cost synthesis of LiNi0.8Co0.15Al0.05O2 cathode material for Li-ion batteries

AU - Liu, Wanmin

AU - Qin, M.L.

AU - Gao, Chengwei

AU - Yu, Donghong

AU - Yue, Yuanzheng

PY - 2019/7

Y1 - 2019/7

N2 - A spherical LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) cathode material is synthesized from the precursor Ni 0.8 Co 0.15 Al 0.05 (OH) 2 obtained through a co-precipitation method using potassium sodium tartrate for the first time as a chelating agent. X-ray diffraction analysis proves that the as-prepared NCA is a hexagonal phase with perfectly ordered layered structure. Scanning electron microscope study shows that the morphology and size of NCA remain nearly the same as those of the precursor. Clear crystal lattice fringes arranged along the (0 0 3) plane can be found in transmission electron microscope images. The NCA material exhibits excellent electrochemical properties with initial charge/discharge capacities of 245.6/204.4, 201.2/196.3, 189.0/182.2 and 177.3/171.4 mAh·g −1 at 0.1, 0.2, 0.5 and 1.0 C, respectively, and charge/discharge capacity retentions of 91.9%/91.5% after 100cycles at 0.5 C in the voltage range of 2.8–4.3 V (vs. Li/Li + ).

AB - A spherical LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) cathode material is synthesized from the precursor Ni 0.8 Co 0.15 Al 0.05 (OH) 2 obtained through a co-precipitation method using potassium sodium tartrate for the first time as a chelating agent. X-ray diffraction analysis proves that the as-prepared NCA is a hexagonal phase with perfectly ordered layered structure. Scanning electron microscope study shows that the morphology and size of NCA remain nearly the same as those of the precursor. Clear crystal lattice fringes arranged along the (0 0 3) plane can be found in transmission electron microscope images. The NCA material exhibits excellent electrochemical properties with initial charge/discharge capacities of 245.6/204.4, 201.2/196.3, 189.0/182.2 and 177.3/171.4 mAh·g −1 at 0.1, 0.2, 0.5 and 1.0 C, respectively, and charge/discharge capacity retentions of 91.9%/91.5% after 100cycles at 0.5 C in the voltage range of 2.8–4.3 V (vs. Li/Li + ).

KW - Energy storage and conversion

KW - Functional

KW - Green synthesis

KW - Nickel-rich lithium cobalt oxide

KW - Potassium sodium tartrate

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U2 - 10.1016/j.matlet.2019.03.064

DO - 10.1016/j.matlet.2019.03.064

M3 - Journal article

VL - 246

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EP - 156

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

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