Reliable seawater battery anode: controlled sodium nucleation<i>via</i>deactivation of the current collector surface

Kim, Do Hyeong; Choi, Hong Kyw; Hwang, Dae Yeon; Park, Jaehyun; Kim, Keun Soo; Ahn, Seokhoon; Kim, Young‐Sik; Kwak, Sang Kyu; Yu, Young‐Jun; Kang, Seok Ju

doi:10.1039/c8ta07610c

Cited by 38 publications

(11 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, the graphene was directly grown on Cu foil and used directly as the plating substrate, so the graphene has strong adhesion with the Cu substrate and it would be hard for the Na to plate beneath the graphene. This Na deposition situation is consistent with most recent report of Na plating on graphene‐covered Cu current collector …”

Section: Resultssupporting

confidence: 93%

Nip the Sodium Dendrites in the Bud on Planar Doped Graphene in Liquid/Gel Electrolytes

Joo

Wang

et al. 2019

Adv Funct Materials

View full text Add to dashboard Cite

Sodium (Na) metal is the most promising alternative anode to metallic lithium for high-energy batteries due to the low cost and high abundance of Na resources, but it suffers from severe dendritic/mossy growth at high current densities. Understanding Na nucleation/growth mechanism in different electrolyte systems is the key to tackling this issue but is complicated by the structural complexities of existing substrates for Na plating/stripping. Herein, well-defined planar doped graphene substrates are synthesized as model plating platforms to unravel a binding energy dominant Na nucleation-growth mode. The dopants (e.g., boron) in doped graphene and the regions close to the dopants possess high binding energies with Na atoms, providing abundant preferential nucleation sites and contributing to uniform Na plating/stripping. Accordingly, the boron-doped graphene regulated Na anode exhibits long-term stability at high current densities in both liquid and polymer electrolytes. The results enhance the understanding of Na nucleation/growth for stabilizing Na metal batteries.

show abstract

Section: Resultssupporting

confidence: 93%

Nip the Sodium Dendrites in the Bud on Planar Doped Graphene in Liquid/Gel Electrolytes

Joo

Wang

et al. 2019

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…In principle, the formation of sodium dendrites is associated with the nucleation of sodium metal at the initial stage and the following growth after nucleation. ,, The initial nucleation sites play an important role in the subsequent sodium depositing behavior. Thus, the regulation of amount and distribution of initial nucleation sites is crucial to achieve uniform deposition of sodium metal. − …”

mentioning

confidence: 99%

Core–Shell C@Sb Nanoparticles as a Nucleation Layer for High-Performance Sodium Metal Anodes

Wang¹,

Zhang²,

Guo³

et al. 2020

Nano Lett.

View full text Add to dashboard Cite

Sodium metal anode (SMA) is one of the most favored choices for the next-generation rechargeable battery technologies owing to its low cost and natural abundance. However, the poor reversibility resulted from dendrite growth and formation of unstable solid electrolyte interphase has significantly hindered the practical application of SMAs. Herein, we report that a nucleation buffer layer comprising elaborately designed core–shell C@Sb nanoparticles (NPs) enables the homogeneous electrochemical deposition of sodium metal for long-term cycling. These C@Sb NPs can increase active sites for initial sodium nucleation through Sb–Na alloy cores and keep these cores stable through carbon shells. The assembled cells with this nucleation layer can deliver continuously repeated sodium plating/stripping cycles for nearly 6000 h at a high areal capacity of 4 mA h cm–2 with an average Coulombic efficiency 99.7%. This ingenious structure design of alloy-based nucleation agent opens up a promising avenue to stabilize sodium metal with targeted properties.

show abstract

“…(D) Chronopotentiometry plots of graphene covered Cu and pristine Cu current collectors. Reproduced with permission: Copyright 2012, The Royal Society of Chemistry 152 . (E) Top view and cross‐sectional view optical microscope image of PVA‐Borax@Cu and PVA‐Borax@Cu after plating K. Reproduced with permission: Copyright 2021, John Wiley & Sons, Inc 153 …”

Section: Current Collectors For Sodium/potassium Metal Anodesmentioning

confidence: 99%

Engineering current collectors for advanced alkali metal anodes: A review and perspective

Deng

Liang

et al. 2022

EcoMat

View full text Add to dashboard Cite

Alkali metal batteries (AMBs) are promising next-generation high-density electrochemical energy storage systems. In addition, current collectors play important roles in enhancing their electrochemical performances. Thus, it is essential to have a critical review of the most recent advances in engineering the current collectors for high-performance AMBs. In this review paper, the fundamentals of alkali metal deposition on current collectors will be introduced first. Then recent advances in the development of advanced metal and

show abstract

Reliable seawater battery anode: controlled sodium nucleationviadeactivation of the current collector surface

Abstract: Deactivated current collector surface for reliable seawater battery.

Cited by 38 publications

References 61 publications

Nip the Sodium Dendrites in the Bud on Planar Doped Graphene in Liquid/Gel Electrolytes

Nip the Sodium Dendrites in the Bud on Planar Doped Graphene in Liquid/Gel Electrolytes

Core–Shell C@Sb Nanoparticles as a Nucleation Layer for High-Performance Sodium Metal Anodes

Engineering current collectors for advanced alkali metal anodes: A review and perspective

Contact Info

Product

Resources

About