Atomic Layer Deposition of Al2O3-Ga2O3 Alloy Coatings for Li[Ni0.5Mn0.3Co0.2]O2 Cathode to Improve Rate Performance in Li-Ion Battery

Masihhur R. Laskar; David H K Jackson; Yingxin Guan; Shenzhen Xu; Shuyu Fang; Mark Dreibelbis; Mahesh K. Mahanthappa; Dane Morgan; Robert J. Hamers; Thomas F. Kuech

doi:10.1021/acsami.5b11878

Atomic Layer Deposition of Al₂O₃-Ga₂O₃ Alloy Coatings for Li[Ni_0.5Mn_0.3Co_0.2]O₂ Cathode to Improve Rate Performance in Li-Ion Battery

Masihhur R. Laskar, David H K Jackson, Yingxin Guan, Shenzhen Xu, Shuyu Fang, Mark Dreibelbis, Mahesh K. Mahanthappa, Dane Morgan, Robert J. Hamers, Thomas F. Kuech

Chemical Engineering and Materials Science

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

47 Scopus citations

Abstract

Metal oxide coatings can improve the electrochemical stability of cathodes and hence, their cycle-life in rechargeable batteries. However, such coatings often impose an additional electrical and ionic transport resistance to cathode surfaces leading to poor charge-discharge capacity at high C-rates. Here, a mixed oxide (Al₂O₃)_1-x(Ga₂O₃)_x alloy coating, prepared via atomic layer deposition (ALD), on Li[Ni_0.5Mn_0.3Co_0.2]O₂ (NMC) cathodes is developed that has increased electron conductivity and demonstrated an improved rate performance in comparison to uncoated NMC. A "co-pulsing" ALD technique was used which allows intimate and controlled ternary mixing of deposited film to obtain nanometer-thick mixed oxide coatings. Co-pulsing allows for independent control over film composition and thickness in contrast to separate sequential pulsing of the metal sources. (Al₂O₃)_1-x(Ga₂O₃)_x alloy coatings were demonstrated to improve the cycle life of the battery. Cycle tests show that increasing Al-content in alloy coatings increases capacity retention; whereas a mixture of compositions near (Al₂O₃)_0.5(Ga₂O₃)_0.5 was found to produce the optimal rate performance.

Original language	English (US)
Pages (from-to)	10572-10580
Number of pages	9
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	16
DOIs	https://doi.org/10.1021/acsami.5b11878
State	Published - Apr 27 2016

Bibliographical note

Funding Information:
This work was solely supported by The Dow Chemical Company.

Publisher Copyright:
© 2016 American Chemical Society.

Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.

Keywords

AlO
GaO
Li-ion battery
NMC cathode
atomic layer deposition
coatings

Publisher link

10.1021/acsami.5b11878

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Laskar, M. R., Jackson, D. H. K., Guan, Y., Xu, S., Fang, S., Dreibelbis, M., Mahanthappa, M. K., Morgan, D., Hamers, R. J., & Kuech, T. F. (2016). Atomic Layer Deposition of Al₂O₃-Ga₂O₃ Alloy Coatings for Li[Ni_0.5Mn_0.3Co_0.2]O₂ Cathode to Improve Rate Performance in Li-Ion Battery. ACS Applied Materials and Interfaces, 8(16), 10572-10580. https://doi.org/10.1021/acsami.5b11878

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title = "Atomic Layer Deposition of Al2O3-Ga2O3 Alloy Coatings for Li[Ni0.5Mn0.3Co0.2]O2 Cathode to Improve Rate Performance in Li-Ion Battery",

abstract = "Metal oxide coatings can improve the electrochemical stability of cathodes and hence, their cycle-life in rechargeable batteries. However, such coatings often impose an additional electrical and ionic transport resistance to cathode surfaces leading to poor charge-discharge capacity at high C-rates. Here, a mixed oxide (Al2O3)1-x(Ga2O3)x alloy coating, prepared via atomic layer deposition (ALD), on Li[Ni0.5Mn0.3Co0.2]O2 (NMC) cathodes is developed that has increased electron conductivity and demonstrated an improved rate performance in comparison to uncoated NMC. A {"}co-pulsing{"} ALD technique was used which allows intimate and controlled ternary mixing of deposited film to obtain nanometer-thick mixed oxide coatings. Co-pulsing allows for independent control over film composition and thickness in contrast to separate sequential pulsing of the metal sources. (Al2O3)1-x(Ga2O3)x alloy coatings were demonstrated to improve the cycle life of the battery. Cycle tests show that increasing Al-content in alloy coatings increases capacity retention; whereas a mixture of compositions near (Al2O3)0.5(Ga2O3)0.5 was found to produce the optimal rate performance.",

keywords = "AlO, GaO, Li-ion battery, NMC cathode, atomic layer deposition, coatings",

author = "Laskar, {Masihhur R.} and Jackson, {David H K} and Yingxin Guan and Shenzhen Xu and Shuyu Fang and Mark Dreibelbis and Mahanthappa, {Mahesh K.} and Dane Morgan and Hamers, {Robert J.} and Kuech, {Thomas F.}",

note = "Funding Information: This work was solely supported by The Dow Chemical Company. Publisher Copyright: {\textcopyright} 2016 American Chemical Society. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.",

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AU - Laskar, Masihhur R.

AU - Jackson, David H K

AU - Guan, Yingxin

AU - Xu, Shenzhen

AU - Fang, Shuyu

AU - Dreibelbis, Mark

AU - Mahanthappa, Mahesh K.

AU - Morgan, Dane

AU - Hamers, Robert J.

AU - Kuech, Thomas F.

N1 - Funding Information: This work was solely supported by The Dow Chemical Company. Publisher Copyright: © 2016 American Chemical Society. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.

PY - 2016/4/27

Y1 - 2016/4/27

N2 - Metal oxide coatings can improve the electrochemical stability of cathodes and hence, their cycle-life in rechargeable batteries. However, such coatings often impose an additional electrical and ionic transport resistance to cathode surfaces leading to poor charge-discharge capacity at high C-rates. Here, a mixed oxide (Al2O3)1-x(Ga2O3)x alloy coating, prepared via atomic layer deposition (ALD), on Li[Ni0.5Mn0.3Co0.2]O2 (NMC) cathodes is developed that has increased electron conductivity and demonstrated an improved rate performance in comparison to uncoated NMC. A "co-pulsing" ALD technique was used which allows intimate and controlled ternary mixing of deposited film to obtain nanometer-thick mixed oxide coatings. Co-pulsing allows for independent control over film composition and thickness in contrast to separate sequential pulsing of the metal sources. (Al2O3)1-x(Ga2O3)x alloy coatings were demonstrated to improve the cycle life of the battery. Cycle tests show that increasing Al-content in alloy coatings increases capacity retention; whereas a mixture of compositions near (Al2O3)0.5(Ga2O3)0.5 was found to produce the optimal rate performance.

AB - Metal oxide coatings can improve the electrochemical stability of cathodes and hence, their cycle-life in rechargeable batteries. However, such coatings often impose an additional electrical and ionic transport resistance to cathode surfaces leading to poor charge-discharge capacity at high C-rates. Here, a mixed oxide (Al2O3)1-x(Ga2O3)x alloy coating, prepared via atomic layer deposition (ALD), on Li[Ni0.5Mn0.3Co0.2]O2 (NMC) cathodes is developed that has increased electron conductivity and demonstrated an improved rate performance in comparison to uncoated NMC. A "co-pulsing" ALD technique was used which allows intimate and controlled ternary mixing of deposited film to obtain nanometer-thick mixed oxide coatings. Co-pulsing allows for independent control over film composition and thickness in contrast to separate sequential pulsing of the metal sources. (Al2O3)1-x(Ga2O3)x alloy coatings were demonstrated to improve the cycle life of the battery. Cycle tests show that increasing Al-content in alloy coatings increases capacity retention; whereas a mixture of compositions near (Al2O3)0.5(Ga2O3)0.5 was found to produce the optimal rate performance.

KW - AlO

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