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Atomic layer deposition of metal oxides for applications in lithium-ion and lithium metal batteries

Bo Zhao (UGent)
(2021)
Author
Promoter
(UGent) and (UGent)
Organization
Abstract
Lithium-ion batteries (LIBs) are widely used for energy-storage purposes. To meet the increasing energy and performance expectations for electronic devices and emerging electric vehicles, next-generation LIBs with improved safety, energy density and lifetime are urgently needed. In an effort to meet these requirements, researchers have been exploring novel electrode materials (e.g., higher capacity anodes and higher voltage cathodes), as well as novel cell configurations (e.g., thin-film batteries). Beyond LIBs, lithium metal batteries attracted significant interest due to their tremendous theoretical capacity (3860 mAh g-1) and the low electrochemical potential (-3.04 V vs. standard hydrogen electrode) of Li metal. However, lithium metal is extremely reactive and inevitably forms a native oxide layer when exposed to ambient environment or when brought in contact with electrolytes. Therefore, to enable using lithium metal as an electrode, suitable surface protection is an essential development that is urgently needed. There is a strong interest in approaches based on nanocoating technology to address key challenges in LIBs and lithium metal batteries. Within this context, a growing interest in applying atomic layer deposition (ALD) for depositing/protecting battery materials. ALD utilizes sequential and self‐limiting surface reactions that enable the deposition of nanocoating with precise thickness and composition on complex shaped surfaces. ALD offers unique capabilities in tailoring novel nanostructured electrodes, as well as towards surface modification and protective coatings. In this thesis, two main aspects of lithium-based batteries were explored. A first part of the thesis discussed ALD synthesis of ternary metal oxides, explored synergistic effects that can be obtained when intermixing metal oxides with the aim of improving their performance as anode materials for LIBs. A second part of the thesis focused on plasma-based surface cleaning of lithium metal, and ALD coating of metal oxide protective layers on lithium metal anodes.
Keywords
atomic layer deposition, SnO2-ZnO, SnO2-Fe2O3, SnO2-TiO2, Al2O3, Y2O3, in vacuo XPS, lithium-ion battery, lithium metal battery

Citation

Please use this url to cite or link to this publication:

MLA
Zhao, Bo. Atomic Layer Deposition of Metal Oxides for Applications in Lithium-Ion and Lithium Metal Batteries. Ghent University. Faculty of Sciences, 2021.
APA
Zhao, B. (2021). Atomic layer deposition of metal oxides for applications in lithium-ion and lithium metal batteries. Ghent University. Faculty of Sciences, Ghent, Belgium.
Chicago author-date
Zhao, Bo. 2021. “Atomic Layer Deposition of Metal Oxides for Applications in Lithium-Ion and Lithium Metal Batteries.” Ghent, Belgium: Ghent University. Faculty of Sciences.
Chicago author-date (all authors)
Zhao, Bo. 2021. “Atomic Layer Deposition of Metal Oxides for Applications in Lithium-Ion and Lithium Metal Batteries.” Ghent, Belgium: Ghent University. Faculty of Sciences.
Vancouver
1.
Zhao B. Atomic layer deposition of metal oxides for applications in lithium-ion and lithium metal batteries. [Ghent, Belgium]: Ghent University. Faculty of Sciences; 2021.
IEEE
[1]
B. Zhao, “Atomic layer deposition of metal oxides for applications in lithium-ion and lithium metal batteries,” Ghent University. Faculty of Sciences, Ghent, Belgium, 2021.
@phdthesis{8721510,
  abstract     = {{Lithium-ion batteries (LIBs) are widely used for energy-storage purposes. To meet the increasing energy and performance expectations for electronic devices and emerging electric vehicles, next-generation LIBs with improved safety, energy density and lifetime are urgently needed. In an effort to meet these requirements, researchers have been exploring novel electrode materials (e.g., higher capacity anodes and higher voltage cathodes), as well as novel cell configurations (e.g., thin-film batteries). Beyond LIBs, lithium metal batteries attracted significant interest due to their tremendous theoretical capacity (3860 mAh g-1) and the low electrochemical potential (-3.04 V vs. standard hydrogen electrode) of Li metal. However, lithium metal is extremely reactive and inevitably forms a native oxide layer when exposed to ambient environment or when brought in contact with electrolytes. Therefore, to enable using lithium metal as an electrode, suitable surface protection is an essential development that is urgently needed. 
There is a strong interest in approaches based on nanocoating technology to address key challenges in LIBs and lithium metal batteries. Within this context, a growing interest in applying atomic layer deposition (ALD) for depositing/protecting battery materials. ALD utilizes sequential and self‐limiting surface reactions that enable the deposition of nanocoating with precise thickness and composition on complex shaped surfaces. ALD offers unique capabilities in tailoring novel nanostructured electrodes, as well as towards surface modification and protective coatings.
In this thesis, two main aspects of lithium-based batteries were explored. A first part of the thesis discussed ALD synthesis of ternary metal oxides, explored synergistic effects that can be obtained when intermixing metal oxides with the aim of improving their performance as anode materials for LIBs. A second part of the thesis focused on plasma-based surface cleaning of lithium metal, and ALD coating of metal oxide protective layers on lithium metal anodes.}},
  author       = {{Zhao, Bo}},
  keywords     = {{atomic layer deposition,SnO2-ZnO,SnO2-Fe2O3,SnO2-TiO2,Al2O3,Y2O3,in vacuo XPS,lithium-ion battery,lithium metal battery}},
  language     = {{eng}},
  pages        = {{223}},
  publisher    = {{Ghent University. Faculty of Sciences}},
  school       = {{Ghent University}},
  title        = {{Atomic layer deposition of metal oxides for applications in lithium-ion and lithium metal batteries}},
  year         = {{2021}},
}