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Revealing the accelerated reaction kinetic of Ni-rich cathodes by activated carbons for high performance lithium-ion batteries.

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Title: Revealing the accelerated reaction kinetic of Ni-rich cathodes by activated carbons for high performance lithium-ion batteries.
Authors: Han, Ya-Lu1,2 (AUTHOR), Wang, Zhe-Fan1,2 (AUTHOR), Xie, Li-Jing1 (AUTHOR), Wang, Hao1,2 (AUTHOR), Yi, Zong Lin1,2 (AUTHOR), Li, Jing-Xue1,3 (AUTHOR), Song, Ge1,2 (AUTHOR), Yan, Chong4 (AUTHOR), Su, Fang-Yuan1 (AUTHOR) sufangyuan@sxicc.ac.cn, Chen, Cheng-Meng1 (AUTHOR) ccm@sxicc.ac.cn
Source: Carbon. Jan2023, Vol. 203, p445-454. 10p.
Subjects: Electrochemical electrodes, Secondary ion mass spectrometry, Solid state batteries, Activated carbon, Cathodes, Lithium-ion batteries, X-ray photoelectron spectra, Porous electrodes
Abstract: Activated carbons (AC) play a key role in enabling the reaction kinetic of cathodes in lithium ion batteries (LIBs). However, the charge transfer dynamics and reaction kinetics mechanism of AC composited cathodes along their thickness direction are still poorly understood. Herein, we systematically compare the internal reactive process evolutions of AC modified LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM622) cathodes and pristine NCM622 cathodes at high C-rates. The charge transfer dynamic is revealed by the time of flight secondary ion mass spectrometry and X-ray photoelectron spectra analyzes. The addition of AC endows the NCM622 cathode regions close to the current collector possess higher lithium ion concentrations, meanwhile more Ni2+ can be converted into Ni3+. The results of COMSOL Multiphysics simulations based on the porous electrode theory is analyzed to explore reaction kinetics mechanism. AC in NCM622 cathodes homogenizes the reaction distributions, contributing to the boosted reaction kinetic, eventually, resulting in the high utilization of active materials. These findings provide a direct way to reduce solid-state diffusion resistances and accelerate reaction kinetics of electrodes, which is critical for developing batteries with long cycle stability and rate performance at high rates. [Display omitted] [ABSTRACT FROM AUTHOR]
Copyright of Carbon 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: 161142229
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Revealing the accelerated reaction kinetic of Ni-rich cathodes by activated carbons for high performance lithium-ion batteries.
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  Data: <searchLink fieldCode="AR" term="%22Han%2C+Ya-Lu%22">Han, Ya-Lu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhe-Fan%22">Wang, Zhe-Fan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Li-Jing%22">Xie, Li-Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Hao%22">Wang, Hao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yi%2C+Zong+Lin%22">Yi, Zong Lin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Jing-Xue%22">Li, Jing-Xue</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Ge%22">Song, Ge</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yan%2C+Chong%22">Yan, Chong</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+Fang-Yuan%22">Su, Fang-Yuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sufangyuan@sxicc.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Cheng-Meng%22">Chen, Cheng-Meng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ccm@sxicc.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Carbon%22">Carbon</searchLink>. Jan2023, Vol. 203, p445-454. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Electrochemical+electrodes%22">Electrochemical electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Secondary+ion+mass+spectrometry%22">Secondary ion mass spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+state+batteries%22">Solid state batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Activated+carbon%22">Activated carbon</searchLink><br /><searchLink fieldCode="DE" term="%22Cathodes%22">Cathodes</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+photoelectron+spectra%22">X-ray photoelectron spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+electrodes%22">Porous electrodes</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Activated carbons (AC) play a key role in enabling the reaction kinetic of cathodes in lithium ion batteries (LIBs). However, the charge transfer dynamics and reaction kinetics mechanism of AC composited cathodes along their thickness direction are still poorly understood. Herein, we systematically compare the internal reactive process evolutions of AC modified LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM622) cathodes and pristine NCM622 cathodes at high C-rates. The charge transfer dynamic is revealed by the time of flight secondary ion mass spectrometry and X-ray photoelectron spectra analyzes. The addition of AC endows the NCM622 cathode regions close to the current collector possess higher lithium ion concentrations, meanwhile more Ni2+ can be converted into Ni3+. The results of COMSOL Multiphysics simulations based on the porous electrode theory is analyzed to explore reaction kinetics mechanism. AC in NCM622 cathodes homogenizes the reaction distributions, contributing to the boosted reaction kinetic, eventually, resulting in the high utilization of active materials. These findings provide a direct way to reduce solid-state diffusion resistances and accelerate reaction kinetics of electrodes, which is critical for developing batteries with long cycle stability and rate performance at high rates. [Display omitted] [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Carbon 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.carbon.2022.11.077
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 445
    Subjects:
      – SubjectFull: Electrochemical electrodes
        Type: general
      – SubjectFull: Secondary ion mass spectrometry
        Type: general
      – SubjectFull: Solid state batteries
        Type: general
      – SubjectFull: Activated carbon
        Type: general
      – SubjectFull: Cathodes
        Type: general
      – SubjectFull: Lithium-ion batteries
        Type: general
      – SubjectFull: X-ray photoelectron spectra
        Type: general
      – SubjectFull: Porous electrodes
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              Text: Jan2023
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