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Comprehensive analysis of boron-induced modification in LiNi0.8Mn0.1Co0.1O2 positive electrode material for lithium-ion batteries.

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Title: Comprehensive analysis of boron-induced modification in LiNi0.8Mn0.1Co0.1O2 positive electrode material for lithium-ion batteries.
Authors: Skvortsova, Irina A.1 (AUTHOR), Orlova, Elena D.1 (AUTHOR), Boev, Anton O.1 (AUTHOR), Aksyonov, Dmitry A.1 (AUTHOR), Moiseev, Ivan1 (AUTHOR), Pazhetnov, Egor M.1 (AUTHOR), Savina, Aleksandra A.1 (AUTHOR) a.savina@skoltech.ru, Abakumov, Artem M.1 (AUTHOR)
Source: Journal of Power Sources. Nov2023, Vol. 583, pN.PAG-N.PAG. 1p.
Subjects: Lithium-ion batteries, Phase transitions, Electron energy loss spectroscopy, Boriding, Common misconceptions
Abstract: Ni-rich layered oxides (Ni-rich NMCs) are attractive cathodes for LIBs demonstrating remarkable specific capacity. Still, their commercial deployment is hindered by insufficient cycle life. To address this issue, both doping with boron and coating with boron-containing species are known to work effectively, however, the exact nature of stability improvement along with the precise effect of boron on the crystal structure and morphology of Ni-rich NMCs are not comprehensively understood. Herein, we scrutinized B-modified LiNi 0.8 Mn 0.1 Co 0.1 O 2 (NMC811) with a combination of bulk and local experimental techniques supported with DFT calculations, both of which exclude insertion of boron into the crystal lattice of NMC811 and indicate that it is present as Li 3 BO 3. We have visualized ∼2 nm Li 3 BO 3 coating at the surface of NMC811 primary particles using electron-energy loss spectroscopy. This coating induces plate-shaped morphology of the primary particles instead of suggested earlier rod- and needle-like shapes and provides enhancement of capacity retention mainly due to improved reversibility of the H2→H3 phase transition upon charge/discharge. This study covers a plethora of boron modification aspects that have remained unclear or controversial so far, eliminating common misconceptions and contributing to understanding of boron impact on the electrochemical properties of Ni-rich NMCs. • B-modified NMC811 was scrutinized with bulk, local techniques and DFT calculations. • Those exclude doping of boron and indicate that it is present as Li 3 BO 3. • ∼2 nm Li 3 BO 3 coating at the surface of NMC811 was visualized using EELS. • This coating induces plate-shaped morphology of the primary particles. • Those provides enhancement of capacity retention due to improved H2.→H3 reversibility. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 171923415
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  Label: Title
  Group: Ti
  Data: Comprehensive analysis of boron-induced modification in LiNi0.8Mn0.1Co0.1O2 positive electrode material for lithium-ion batteries.
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  Data: <searchLink fieldCode="AR" term="%22Skvortsova%2C+Irina+A%2E%22">Skvortsova, Irina A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Orlova%2C+Elena+D%2E%22">Orlova, Elena D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Boev%2C+Anton+O%2E%22">Boev, Anton O.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aksyonov%2C+Dmitry+A%2E%22">Aksyonov, Dmitry A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moiseev%2C+Ivan%22">Moiseev, Ivan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pazhetnov%2C+Egor+M%2E%22">Pazhetnov, Egor M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Savina%2C+Aleksandra+A%2E%22">Savina, Aleksandra A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a.savina@skoltech.ru</i><br /><searchLink fieldCode="AR" term="%22Abakumov%2C+Artem+M%2E%22">Abakumov, Artem M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Power+Sources%22">Journal of Power Sources</searchLink>. Nov2023, Vol. 583, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+energy+loss+spectroscopy%22">Electron energy loss spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Boriding%22">Boriding</searchLink><br /><searchLink fieldCode="DE" term="%22Common+misconceptions%22">Common misconceptions</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Ni-rich layered oxides (Ni-rich NMCs) are attractive cathodes for LIBs demonstrating remarkable specific capacity. Still, their commercial deployment is hindered by insufficient cycle life. To address this issue, both doping with boron and coating with boron-containing species are known to work effectively, however, the exact nature of stability improvement along with the precise effect of boron on the crystal structure and morphology of Ni-rich NMCs are not comprehensively understood. Herein, we scrutinized B-modified LiNi 0.8 Mn 0.1 Co 0.1 O 2 (NMC811) with a combination of bulk and local experimental techniques supported with DFT calculations, both of which exclude insertion of boron into the crystal lattice of NMC811 and indicate that it is present as Li 3 BO 3. We have visualized ∼2 nm Li 3 BO 3 coating at the surface of NMC811 primary particles using electron-energy loss spectroscopy. This coating induces plate-shaped morphology of the primary particles instead of suggested earlier rod- and needle-like shapes and provides enhancement of capacity retention mainly due to improved reversibility of the H2→H3 phase transition upon charge/discharge. This study covers a plethora of boron modification aspects that have remained unclear or controversial so far, eliminating common misconceptions and contributing to understanding of boron impact on the electrochemical properties of Ni-rich NMCs. • B-modified NMC811 was scrutinized with bulk, local techniques and DFT calculations. • Those exclude doping of boron and indicate that it is present as Li 3 BO 3. • ∼2 nm Li 3 BO 3 coating at the surface of NMC811 was visualized using EELS. • This coating induces plate-shaped morphology of the primary particles. • Those provides enhancement of capacity retention due to improved H2.→H3 reversibility. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jpowsour.2023.233571
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Lithium-ion batteries
        Type: general
      – SubjectFull: Phase transitions
        Type: general
      – SubjectFull: Electron energy loss spectroscopy
        Type: general
      – SubjectFull: Boriding
        Type: general
      – SubjectFull: Common misconceptions
        Type: general
    Titles:
      – TitleFull: Comprehensive analysis of boron-induced modification in LiNi0.8Mn0.1Co0.1O2 positive electrode material for lithium-ion batteries.
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            NameFull: Skvortsova, Irina A.
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            – D: 01
              M: 11
              Text: Nov2023
              Type: published
              Y: 2023
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