Large-scale synthesis of SiOC composites for stable Li-ion battery anode and dendrite-free Li metal deposition

Fan, Shangze; Zhang, Jiangjiang; Cui, Shiqiang; Chen, Lanli; Chen, Xuemin; Rong, Jinsheng; Wang, Wenxin; Liu, Yaran; Zhao, Jing-Tai

doi:10.1016/j.cej.2023.147785

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2023.147785

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Large-scale synthesis of SiOC composites for stable Li-ion battery anode and dendrite-free Li metal deposition

Shangze Fan,

Jiangjiang Zhang,

Shiqiang Cui

et al.

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2024

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Cited by 4 publications

References 59 publications

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Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li⁺ Storage Performance

Liu,

Wang,

Mao

2024

ChemSusChem

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Overcoming the significant volume strain in silicon‐based anodes has been the focus of research for decades. The strain/stress in silicon‐based anodes is inversely proportional to their size. In this study, we design atomic Si sites to achieve the ultimate size effect, which indeed exhibits a zero‐strain feature. Compared with conventional silicon‐based anodes with alloying addition reactions, the lithium‐ion storage mechanism of atomic Si sites is solid‐solution reactions, which brings about the zero‐strain feature. Additionally, the ligand structure of atomic Si sites remains constant during cycling. This zero‐strain feature results in excellent cycling stability. Furthermore, the exposed atomic Si sites enhance the electrochemical reaction kinetics, leading to outstanding rate performance. Moreover, the anode inherits the advantages of silicon‐based anodes, including a low working voltage (~0.21 V) and high specific capacity (~2300 mAh g‐1 or ~1203 mAh cm‐3). This work establishes a novel pathway for designing low/zero‐strain anodes.

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Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li⁺ Storage Performance

Liu,

Wang,

Mao

2024

ChemSusChem

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Efficient degradation of methylene blue and ciprofloxacin compounds using heteroanionic titanium oxycarbide photocatalyst and its correlation with their dielectric properties

Subramanian,

Mariadhas,

Le Minh

et al. 2024

Journal of Alloys and Compounds

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To Be or Not to Be: Dendrite Growth Mechanism Adjacent to Pits for High Stability of Lithium Metal Anode

Gao,

Jiang,

et al. 2024

ACS Appl. Energy Mater.

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The challenge of dendrite growth is a formidable obstacle that leads to short circuits when charging lithium (Li)metal batteries. Implementing patterns with various pit structures on Li metal proves to be an effective strategy to alleviate dendrite growth. Nonetheless, the growth mechanism of Li dendrites near pits is still under debate, making it difficult to accurately propose patterns to enhance the stability of the Li metal. In this study, the growth mechanism of dendrites near the pits is successfully clarified for the first time using the in situ optical microscopy method and electrochemical modeling. A direct correlation is established between the formation of Li dendrites and factors. Areas with heightened electric field strength and localized current density are more susceptible to dendrite formation. Increased local surface roughness promotes dendrite nucleation and growth. Dendrite growth at the edge of pits leads to an insufficient supply of Li ions in the pit, thereby inhibiting dendrite formation inside the pit. By optimization of the pattern structure, the density of Li deposition can be significantly improved. The results provide a promising and practical approach to ensure safety and extend the lifetime of Li metal batteries.

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Large-scale synthesis of SiOC composites for stable Li-ion battery anode and dendrite-free Li metal deposition

Cited by 4 publications

References 59 publications

Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li⁺ Storage Performance

Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li⁺ Storage Performance

Efficient degradation of methylene blue and ciprofloxacin compounds using heteroanionic titanium oxycarbide photocatalyst and its correlation with their dielectric properties

To Be or Not to Be: Dendrite Growth Mechanism Adjacent to Pits for High Stability of Lithium Metal Anode

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Large-scale synthesis of SiOC composites for stable Li-ion battery anode and dendrite-free Li metal deposition

Cited by 4 publications

References 59 publications

Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li+ Storage Performance

Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li+ Storage Performance

Efficient degradation of methylene blue and ciprofloxacin compounds using heteroanionic titanium oxycarbide photocatalyst and its correlation with their dielectric properties

To Be or Not to Be: Dendrite Growth Mechanism Adjacent to Pits for High Stability of Lithium Metal Anode

Contact Info

Product

Resources

About

Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li⁺ Storage Performance

Si Single‐Atom Sites Anchored Carbon Anode Achieving the Zero‐Strain Feature and Superior Li⁺ Storage Performance