H                         3                         PO                         4                          treatment to enhance the electrochemical properties of Li(Ni                         1/3                         Mn                         1/3                         Co                         1/3                         )O                         2                          and Li(Ni                         0.5                         Mn                         0.3                         Co                         0.2                         )O                         2                          cathodes

Karan Sahni; Maziar Ashuri; Qianran He; Ritu Sahore; Ira D. Bloom; Yuzi Liu; James A. Kaduk; Leon L. Shaw

doi:10.1016/j.electacta.2019.01.153

H ₃ PO ₄ treatment to enhance the electrochemical properties of Li(Ni _1/3 Mn _1/3 Co _1/3 )O ₂ and Li(Ni _0.5 Mn _0.3 Co _0.2 )O ₂ cathodes

Karan Sahni, Maziar Ashuri, Qianran He, Ritu Sahore, Ira D. Bloom, Yuzi Liu, James A. Kaduk, Leon L. Shaw

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

In this study, Li(Ni _1/3 Mn _1/3 Co _1/3 )O ₂ (NMC333) and Li(Ni _0.5 Mn _0.3 Co _0.2 )O ₂ (NMC532) have been subjected to a phosphoric acid (H ₃ PO ₄ ) solution treatment to form a thin Li ₃ PO ₄ coating on their surfaces. The Li ₃ PO ₄ coating formed is found to be very potent in enhancing the specific capacity of the first discharge as well as the rate capability and capacity retention in the subsequent charge/discharge cycles for both NMC333 and NMC532. The specific capacity of the first discharge for NMC532 has been increased drastically from ∼160 mA h g ⁻¹ for pristine NMC532 to ∼250 mA h g ⁻¹ for Li ₃ PO ₄ -coated counterpart at 0.1C and such a large capacity enhancement is retained throughout the subsequent cycles at 1C. The final specific capacity of Li ₃ PO ₄ -coated NMC532 is 187 mA h g ⁻¹ after 100 cycles at 1C, whereas the corresponding value of pristine NMC532 is only 50 mA h g ⁻¹ . The rate capability has also been improved significantly with Li ₃ PO ₄ -coated NMC532 exhibiting ∼150 mA h g ⁻¹ capacity at 6C while pristine NMC532 showing zero capacity. Similar improvements have also been achieved with NMC333. These results demonstrate that the H ₃ PO ₄ treatment is a facile and general method to improve the electrochemical properties of NMCs with different compositions and can be utilized for practical applications.

Original language	English
Pages (from-to)	8-22
Number of pages	15
Journal	Electrochimica Acta
Volume	301
DOIs	https://doi.org/10.1016/j.electacta.2019.01.153
State	Published - Apr 1 2019
Externally published	Yes

Funding

KS, MA, QH and LS are grateful to the Rowe Family Endowment Fund in Sustainable Energy at Illinois Institute of Technology . R.S. and I.B. gratefully acknowledge support from the U. S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy , Vehicle Technologies Office . The use of the Center for Nanoscale Materials (CNM) was supported by the U. S. Department of Energy , Office of Science , Office of Basic Energy Sciences , under Contract No. DE-AC02-06CH11357 . KS, MA, QH and LS are grateful to the Rowe Family Endowment Fund in Sustainable Energy at Illinois Institute of Technology. R.S. and I.B. gratefully acknowledge support from the U. S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office. The use of the Center for Nanoscale Materials (CNM) was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.

Keywords

Cathodes
Layered transition metal oxides
Li-ion batteries
Li3PO4 coating

Access to Document

10.1016/j.electacta.2019.01.153

Cite this

Sahni, K., Ashuri, M., He, Q., Sahore, R., Bloom, I. D., Liu, Y., Kaduk, J. A., & Shaw, L. L. (2019). H ₃ PO ₄ treatment to enhance the electrochemical properties of Li(Ni _1/3 Mn _1/3 Co _1/3 )O ₂ and Li(Ni _0.5 Mn _0.3 Co _0.2 )O ₂ cathodes Electrochimica Acta, 301, 8-22. https://doi.org/10.1016/j.electacta.2019.01.153

Sahni, Karan ; Ashuri, Maziar ; He, Qianran et al. / H ₃ PO ₄ treatment to enhance the electrochemical properties of Li(Ni _1/3 Mn _1/3 Co _1/3 )O ₂ and Li(Ni _0.5 Mn _0.3 Co _0.2 )O ₂ cathodes In: Electrochimica Acta. 2019 ; Vol. 301. pp. 8-22.

@article{0ff05d0fed344cbd85e5f5a9e6d2a51e,

title = " H 3 PO 4 treatment to enhance the electrochemical properties of Li(Ni 1/3 Mn 1/3 Co 1/3 )O 2 and Li(Ni 0.5 Mn 0.3 Co 0.2 )O 2 cathodes ",

abstract = " In this study, Li(Ni 1/3 Mn 1/3 Co 1/3 )O 2 (NMC333) and Li(Ni 0.5 Mn 0.3 Co 0.2 )O 2 (NMC532) have been subjected to a phosphoric acid (H 3 PO 4 ) solution treatment to form a thin Li 3 PO 4 coating on their surfaces. The Li 3 PO 4 coating formed is found to be very potent in enhancing the specific capacity of the first discharge as well as the rate capability and capacity retention in the subsequent charge/discharge cycles for both NMC333 and NMC532. The specific capacity of the first discharge for NMC532 has been increased drastically from ∼160 mA h g −1 for pristine NMC532 to ∼250 mA h g −1 for Li 3 PO 4 -coated counterpart at 0.1C and such a large capacity enhancement is retained throughout the subsequent cycles at 1C. The final specific capacity of Li 3 PO 4 -coated NMC532 is 187 mA h g −1 after 100 cycles at 1C, whereas the corresponding value of pristine NMC532 is only 50 mA h g −1 . The rate capability has also been improved significantly with Li 3 PO 4 -coated NMC532 exhibiting ∼150 mA h g −1 capacity at 6C while pristine NMC532 showing zero capacity. Similar improvements have also been achieved with NMC333. These results demonstrate that the H 3 PO 4 treatment is a facile and general method to improve the electrochemical properties of NMCs with different compositions and can be utilized for practical applications.",

keywords = "Cathodes, Layered transition metal oxides, Li-ion batteries, Li3PO4 coating",

author = "Karan Sahni and Maziar Ashuri and Qianran He and Ritu Sahore and Bloom, \{Ira D.\} and Yuzi Liu and Kaduk, \{James A.\} and Shaw, \{Leon L.\}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

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day = "1",

doi = "10.1016/j.electacta.2019.01.153",

language = "English",

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Sahni, K, Ashuri, M, He, Q, Sahore, R, Bloom, ID, Liu, Y, Kaduk, JA & Shaw, LL 2019, ' H ₃ PO ₄ treatment to enhance the electrochemical properties of Li(Ni _1/3 Mn _1/3 Co _1/3 )O ₂ and Li(Ni _0.5 Mn _0.3 Co _0.2 )O ₂ cathodes ', Electrochimica Acta, vol. 301, pp. 8-22. https://doi.org/10.1016/j.electacta.2019.01.153

H ₃ PO ₄ treatment to enhance the electrochemical properties of Li(Ni _1/3 Mn _1/3 Co _1/3 )O ₂ and Li(Ni _0.5 Mn _0.3 Co _0.2 )O ₂ cathodes . / Sahni, Karan; Ashuri, Maziar; He, Qianran et al.
In: Electrochimica Acta, Vol. 301, 01.04.2019, p. 8-22.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - H 3 PO 4 treatment to enhance the electrochemical properties of Li(Ni 1/3 Mn 1/3 Co 1/3 )O 2 and Li(Ni 0.5 Mn 0.3 Co 0.2 )O 2 cathodes

AU - Sahni, Karan

AU - Ashuri, Maziar

AU - He, Qianran

AU - Sahore, Ritu

AU - Bloom, Ira D.

AU - Liu, Yuzi

AU - Kaduk, James A.

AU - Shaw, Leon L.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - In this study, Li(Ni 1/3 Mn 1/3 Co 1/3 )O 2 (NMC333) and Li(Ni 0.5 Mn 0.3 Co 0.2 )O 2 (NMC532) have been subjected to a phosphoric acid (H 3 PO 4 ) solution treatment to form a thin Li 3 PO 4 coating on their surfaces. The Li 3 PO 4 coating formed is found to be very potent in enhancing the specific capacity of the first discharge as well as the rate capability and capacity retention in the subsequent charge/discharge cycles for both NMC333 and NMC532. The specific capacity of the first discharge for NMC532 has been increased drastically from ∼160 mA h g −1 for pristine NMC532 to ∼250 mA h g −1 for Li 3 PO 4 -coated counterpart at 0.1C and such a large capacity enhancement is retained throughout the subsequent cycles at 1C. The final specific capacity of Li 3 PO 4 -coated NMC532 is 187 mA h g −1 after 100 cycles at 1C, whereas the corresponding value of pristine NMC532 is only 50 mA h g −1 . The rate capability has also been improved significantly with Li 3 PO 4 -coated NMC532 exhibiting ∼150 mA h g −1 capacity at 6C while pristine NMC532 showing zero capacity. Similar improvements have also been achieved with NMC333. These results demonstrate that the H 3 PO 4 treatment is a facile and general method to improve the electrochemical properties of NMCs with different compositions and can be utilized for practical applications.

AB - In this study, Li(Ni 1/3 Mn 1/3 Co 1/3 )O 2 (NMC333) and Li(Ni 0.5 Mn 0.3 Co 0.2 )O 2 (NMC532) have been subjected to a phosphoric acid (H 3 PO 4 ) solution treatment to form a thin Li 3 PO 4 coating on their surfaces. The Li 3 PO 4 coating formed is found to be very potent in enhancing the specific capacity of the first discharge as well as the rate capability and capacity retention in the subsequent charge/discharge cycles for both NMC333 and NMC532. The specific capacity of the first discharge for NMC532 has been increased drastically from ∼160 mA h g −1 for pristine NMC532 to ∼250 mA h g −1 for Li 3 PO 4 -coated counterpart at 0.1C and such a large capacity enhancement is retained throughout the subsequent cycles at 1C. The final specific capacity of Li 3 PO 4 -coated NMC532 is 187 mA h g −1 after 100 cycles at 1C, whereas the corresponding value of pristine NMC532 is only 50 mA h g −1 . The rate capability has also been improved significantly with Li 3 PO 4 -coated NMC532 exhibiting ∼150 mA h g −1 capacity at 6C while pristine NMC532 showing zero capacity. Similar improvements have also been achieved with NMC333. These results demonstrate that the H 3 PO 4 treatment is a facile and general method to improve the electrochemical properties of NMCs with different compositions and can be utilized for practical applications.

KW - Cathodes

KW - Layered transition metal oxides

KW - Li-ion batteries

KW - Li3PO4 coating

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U2 - 10.1016/j.electacta.2019.01.153

DO - 10.1016/j.electacta.2019.01.153

M3 - Article

AN - SCOPUS:85061303581

SN - 0013-4686

VL - 301

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EP - 22

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Sahni K, Ashuri M, He Q, Sahore R, Bloom ID, Liu Y et al. H ₃ PO ₄ treatment to enhance the electrochemical properties of Li(Ni _1/3 Mn _1/3 Co _1/3 )O ₂ and Li(Ni _0.5 Mn _0.3 Co _0.2 )O ₂ cathodes Electrochimica Acta. 2019 Apr 1;301:8-22. doi: 10.1016/j.electacta.2019.01.153