Mechanism of lithium electrodeposition in a magnetic field

Huang, Yonghui; Wu, Xinsheng; Nie, Lu; Chen, Shaojie; Sun, Zhetao; He, Yingjie; Liu, Wei

doi:10.1016/j.ssi.2019.115171

Cited by 28 publications

(14 citation statements)

References 30 publications

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“…However, most reports show that both the poor cyclability and dendrite issues of lithium anodes can be largely overcome using a magnetic field. [ 11–14 ] As it appears to be an emerging approach to use magnetic field to improve lithium anodes and rechargeable batteries, it brings both challenges and opportunities, including as follows.…”

Section: Discussionmentioning

confidence: 99%

“…The grain size depends on the plating overpotential/current density. [ 14,36 ] A higher plating overpotential/current density leads to smaller grains. Thus, the nonuniform morphology of the plated lithium at ≈550 mT indicates that the convection of electrolyte induces an uneven current distribution.…”

Section: An Example Of Magnetic Effects On Lithium Anodementioning

confidence: 99%

“…We realize that our result is against previous reports where magnetic field is shown to prevent the growth of lithium dendrites. [ 11–14 ] However, as MHD effects compete with each other and differ in different electrochemical systems, the different results could be simply due to the different testing conditions. Therefore, to further understand how magnetic field affects lithium anodes, more work is necessary, for example, using different current densities, different electrolytes, different substrates, and different magnetic field orientations/strengths.…”

Section: Competition Relationship Between Multiple Mhd Effectsmentioning

confidence: 99%

“…It is reported recently that the presence of magnetic field can improve the cycling performance of lithium anodes and prevent the growth of lithium dendrites. [ 11–14 ] The improvement is probably related to the significant morphological change of the lithium plated. Typically, with the presence of magnetic field, the lithium plated becomes more uniform and denser, and the crystals become larger.…”

Section: Introductionmentioning

confidence: 99%

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A Perspective on the Behavior of Lithium Anodes under a Magnetic Field

Wang

2020

Small Structures

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Lithium metal‐based rechargeable batteries, such as lithium–sulfur and lithium–air batteries, are promising next‐generation batteries due to their high energy density. However, the use of lithium anode involves severe problems including poor cyclability and lithium dendrites‐related safety issues. It is reported recently that the presence of magnetic field can improve the cyclability and prevent the growth of lithium dendrites. However, it is unclear how, in detail, magnetic field affects lithium anodes. Herein, a competition relationship is proposed for understanding magnetic effect on lithium anodes. Magnetic field induces multiple magnetohydrodynamic (MHD) effects in a cell. These effects include an uneven current distribution across the electrode, enhanced mass transport, and redistribution of lithium ions around lithium dendrites. While the first effect promotes dendritic growth, the latter two benefit preventing their growth. Thus, the first competes with the latter two. Herein, it is shown that uneven current distribution can be the domain effect. It leads to earlier short circuits caused by dendrites and shortens the cycle life of lithium anodes through a higher electrolyte decomposition rate. As it appears to be an emerging approach to improve the performance of lithium anodes and rechargeable batteries using magnetic field, challenges and opportunities are discussed.

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Section: Discussionmentioning

confidence: 99%

Section: An Example Of Magnetic Effects On Lithium Anodementioning

confidence: 99%

Section: Competition Relationship Between Multiple Mhd Effectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Perspective on the Behavior of Lithium Anodes under a Magnetic Field

Wang

2020

Small Structures

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“…This concord with the law of cathodic reduction of aqueous solution and the fundamental law of crystallization processing, but somehow complicated to the kinetic law of cathodic reduction because the electrode attracts particles continuously. The influencing of each of these processes resulted in the complexity of the metal deposition process on an electrode, specifying the four steps [52]: 1) Reaction particles (hydrated ions and complexions) move to the electrode through the process of electromigration, convection, and diffusion, respectively; 2) Rearrangement of water molecules or coordination number of metal complexes known as a pre-conversion process; 3) Reaction particles absorbed at the interface of electrode and solution which is the charges transfer process; 4) Crystallization of electro-process, in which atom from cathodic reduction develop to form crystal nuclei and grow later to form crystals, or, newly atoms spread on electrode surface at a particular position and enter the lattice and grow on the main metal lattice [53]. However, based on these four steps, the highest resistance and slowest rate step become the electrodeposition rate-determining step with changes in the electrochemical system and conditions.…”

Section: Mechanismmentioning

confidence: 99%

Superhydrophobic Coating Fabrication for Metal Protection Based on Electrodeposition Application: A Review

Miller¹,

Hu²,

Weamie³

et al. 2021

MSCE

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In recent years, superhydrophobic media has attracted tremendous attention due to its industrial applicability value, especially in anti-corrosion performance. The superhydrophobic coating, which has a robust and water-repellent capacity, can catch the air to form several "airbags" on the substrate's surface, isolating the corrosion media. Various superhydrophobic coating preparation technologies have been suggested, but each has its own set of flaws. On the other hand, electrodeposition, as a relatively mature industrial processing application, offers distinct advantages. However, until now, there have been few reviews on the electrodeposition preparation of anticorrosive superhydrophobic coatings. Therefore, the author has described several fabrication techniques based on superhydrophobic coatings in this review, including the advantages and disadvantages. Superhydrophobic coatings conventional concepts and wettability, as well as the model wetting concepts, have been reviewed. The coating processing status and the corrosion-resistant potential through the electrodeposition of metal and comparable composite are detailly encapsulated. Furthermore, electrodeposition parameters, including current density, crystal modifiers, and a deposition time of the coating morphology, are reported, following the ultrasonic-assisted, jet, pulse, and magnetic field-induced electrodeposition, respectively, as the recently developed technologies for preparing a coating. Finally, technology limitation is shown as well as the obstacles and prospects, and the improvement of the superhydrophobic coating's durability as a prospects research focus has been recommended.

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Spin‐Related Electrode Reactions in Nanomaterials

Sun¹,

Hou²

2022

Functional Nanomaterials

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Mechanism of lithium electrodeposition in a magnetic field

Cited by 28 publications

References 30 publications

A Perspective on the Behavior of Lithium Anodes under a Magnetic Field

A Perspective on the Behavior of Lithium Anodes under a Magnetic Field

Superhydrophobic Coating Fabrication for Metal Protection Based on Electrodeposition Application: A Review

Spin‐Related Electrode Reactions in Nanomaterials

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