Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries

Abstract In this study, lithium phosphate (Li3PO4) is coated on the surface of Ni-rich LiNi0.91Co0.06Mn0.03O2 cathode material to enhance its cyclability and rate performance. The process is carried-out by achieving dual benefits, reduction of residual lithium compounds by converting them into Li3PO...

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Autores principales:	Tahir Sattar, Seong-Ju Sim, Bong-Soo Jin, Hyun-Soo Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c00c00960bdd4dc9a33d42864062e785
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spelling	oai:doaj.org-article:c00c00960bdd4dc9a33d42864062e7852021-12-02T18:48:03ZDual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries10.1038/s41598-021-98123-42045-2322https://doaj.org/article/c00c00960bdd4dc9a33d42864062e7852021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98123-4https://doaj.org/toc/2045-2322Abstract In this study, lithium phosphate (Li3PO4) is coated on the surface of Ni-rich LiNi0.91Co0.06Mn0.03O2 cathode material to enhance its cyclability and rate performance. The process is carried-out by achieving dual benefits, reduction of residual lithium compounds by converting them into Li3PO4 coating material. The 0.1 mol.% Li3PO4 (LiP) sample exhibits a capacity retention of 82% while the pristine NCM shows only 68.1% after 100 cycles. In addition, the LiP-0.1 NCM delivers high discharge capacities (161.9 mAh g−1 at 3C, 144.3 mAh g−1 at 4C and 94.6 mAh g−1 at 5C) as compared to the pristine NCM (129.3 mAh g−1 at 3C, 67.4 mAh g−1 at 4C and 33.4 mAh g−1 at 5C) in the voltage range of 3.0–4.3 V. In addition, the irreversible phase transition has also suppressed in the coated sample which is confirmed by cyclic voltammetry. Our study suggests that Li3PO4 coating reduces the polarization and acts as protecting layer between the electrode and electrolyte that results in the superior electrochemical performance.Tahir SattarSeong-Ju SimBong-Soo JinHyun-Soo KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tahir Sattar Seong-Ju Sim Bong-Soo Jin Hyun-Soo Kim Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries
description	Abstract In this study, lithium phosphate (Li3PO4) is coated on the surface of Ni-rich LiNi0.91Co0.06Mn0.03O2 cathode material to enhance its cyclability and rate performance. The process is carried-out by achieving dual benefits, reduction of residual lithium compounds by converting them into Li3PO4 coating material. The 0.1 mol.% Li3PO4 (LiP) sample exhibits a capacity retention of 82% while the pristine NCM shows only 68.1% after 100 cycles. In addition, the LiP-0.1 NCM delivers high discharge capacities (161.9 mAh g−1 at 3C, 144.3 mAh g−1 at 4C and 94.6 mAh g−1 at 5C) as compared to the pristine NCM (129.3 mAh g−1 at 3C, 67.4 mAh g−1 at 4C and 33.4 mAh g−1 at 5C) in the voltage range of 3.0–4.3 V. In addition, the irreversible phase transition has also suppressed in the coated sample which is confirmed by cyclic voltammetry. Our study suggests that Li3PO4 coating reduces the polarization and acts as protecting layer between the electrode and electrolyte that results in the superior electrochemical performance.
format	article
author	Tahir Sattar Seong-Ju Sim Bong-Soo Jin Hyun-Soo Kim
author_facet	Tahir Sattar Seong-Ju Sim Bong-Soo Jin Hyun-Soo Kim
author_sort	Tahir Sattar
title	Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries
title_short	Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries
title_full	Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries
title_fullStr	Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries
title_full_unstemmed	Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries
title_sort	dual function li-reactive coating from residual lithium on ni-rich ncm cathode material for lithium-ion batteries
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c00c00960bdd4dc9a33d42864062e785
work_keys_str_mv	AT tahirsattar dualfunctionlireactivecoatingfromresiduallithiumonnirichncmcathodematerialforlithiumionbatteries AT seongjusim dualfunctionlireactivecoatingfromresiduallithiumonnirichncmcathodematerialforlithiumionbatteries AT bongsoojin dualfunctionlireactivecoatingfromresiduallithiumonnirichncmcathodematerialforlithiumionbatteries AT hyunsookim dualfunctionlireactivecoatingfromresiduallithiumonnirichncmcathodematerialforlithiumionbatteries
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Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries

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