Electro-deposition of the lithium metal anode on dendritic copper current collectors for lithium battery application

Choi, Bit Na; Seo, Jung Yong; Kim, Byeongkyu; Kim, Yong Seok; Chung, Chan‐Hwa

doi:10.1016/j.apsusc.2019.144884

Cited by 31 publications

(20 citation statements)

References 38 publications

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“…One way to achieve this is by electrifying ammonia synthesis, since electricity can be acquired from renewable energy sources. Although the area of electrochemical ammonia synthesis has gained much scientific interest due to the large positive implications, − it still has some complications such as impurities in the gas feed or chemicals and selectivity issues, leading to erroneous reports and small faradaic efficiencies. − Recently, protocols of how to conduct experiments in this field and measure ammonia correctly were published, which will help move the research in the right direction. ,− So far it is believed that the only reliable way to make ammonia electrochemically is the Li-mediated ammonia synthesis which was initially developed by Fichter et al in 1930 and later also studied by Tsuneto et al over 60 years later. , This method uses a nonaqueous electrolyte to minimize the competing hydrogen evolution reaction (HER). The exact mechanism is yet to be elucidated, but most agree that it involves three main steps .…”

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confidence: 99%

Increasing Current Density of Li-Mediated Ammonia Synthesis with High Surface Area Copper Electrodes

Shapel

Hochfilzer

et al. 2021

ACS Energy Lett.

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The lithium-mediated ammonia synthesis is so far the only proven electrochemical way to produce ammonia with promising faradaic efficiencies (FEs). However, to make this process commercially competitive, the ammonia formation rates per geometric surface area need to be increased significantly. In this study, we increased the current density by synthesizing high surface area Cu electrodes through hydrogen bubbling templating (HBT) on Ni foam substrates. With these electrodes, we achieved high ammonia formation rates of 46.0 ± 6.8 nmol s −1 cm geo −2 , at a current density of −100 mA/cm geo −2 at 20 bar nitrogen atmosphere and comparable cell potentials to flat foil electrodes. The FE and energy efficiency (EE) under these conditions were 13.3 ± 2.0% and 2.3 ± 0.3%, respectively. Additionally, we found that increasing the electrolyte salt concentration improves the stability of the system, which is attributed to a change of Li deposition and/or solid electrolyte interphase.

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confidence: 99%

Increasing Current Density of Li-Mediated Ammonia Synthesis with High Surface Area Copper Electrodes

Shapel

Hochfilzer

et al. 2021

ACS Energy Lett.

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“…The formation of copper dendrites is due to (1) the dense electric lines of force at the edge of the hole during electrodeposition, resulting in a higher current density at the hole edge than at other parts, and (2) the rapid decrease in copper ion concentration at the hole edge, , which is beneficial to the growth of copper dendrites. This structure is conducive to increase the contact area and reduce the internal resistance . The crystals formed on the surface of CC/THCu have spherical heads with the diameter about 2 μm (Figure a-2,d) and the columnar shape with a height of about 5 μm (Figures a-3,e).…”

Section: Resultsmentioning

confidence: 99%

“…A variety of methods have been reported to fabricate current collectors with modified surface structures. Many studies focus on the preparation of complex micro- and nanostructures. ,− Chu and Tuan fabricated Cu nanowire (CuNW) foil by rolling CuNWs. The CuNW foil reduces the thickness and areal weight and has better slurry wetting and adhesion properties.…”

Section: Introductionmentioning

confidence: 99%

Lightweight Through-Hole Copper Foil as a Current Collector for Lithium-Ion Batteries

Fei

Dong

Gong

et al. 2021

ACS Appl. Mater. Interfaces

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In the past few decades, much effort has been dedicated to improve electrochemical performance of lithium-ion batteries (LIBs) through material design. Less attention, however, has been paid to structure engineering of battery components, which is an effective way for improving the electrochemical performance of LIBs. In this work, a lightweight Cu current collector with a through-hole array and columnar crystal on the surface (CC/THCu) was designed and fabricated using a nanosecond ultraviolet laser and electrodeposition processing to enhance specific capacity and cycle stability of LIBs. The synergistic effect of the columnar crystal and through-hole structure for improving electrochemical performances of LIBs assembled with the CC/THCu current collector was investigated. The results show that the complex structure provides spaces for volume expansion and reduces volume variation. When the hole fraction reaches 20%, the weight loss of CC/THCu is 28.41%. The corresponding LIB with the 20% hole fraction CC/THCu shows a high residual capacity rate of 81.2% and enhanced specific capacity (55.9% compared to the LIB with a bare Cu current collector). At a high rate of 1 C, the remaining specific capacity of the LIB with the CC/THCu current collector is better than that with the bare Cu current collector after 200 cycles. The CC/THCu current collector effectively improves the specific capacity and cycle stability of LIBs in contrast to the bare Cu current collector.

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“…The dendritic copper substrate has been studied morphologically and electrochemically (Figure 11b). [182] Chen et al created a novel 3D light-weight and flexible copperclad carbon framework (CuCF) by pyrolysis of melamineÀ formaldehyde foam and followed by electroplating of copper. This obtained nanostructure has high surface area and electrical conductivity for uniform distribution of lithium flux over the surface.…”

Section: Modified Current Collectormentioning

confidence: 99%

Research Progress and Perspective on Lithium/Sodium Metal Anodes for Next‐Generation Rechargeable Batteries

Patrike

Yadav

Shelke³

et al. 2022

ChemSusChem

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With the development of consumer electronic devices and electric vehicles, lithium-ion batteries (LIBs) are vital components for high energy storage with great impact on our modern life. However, LIBs still cannot meet all the essential demands of rapidly growing new industries. In pursuance of higher energy requirement, metal batteries (MBs) are the next-generation high-energy-density devices. Li/Na metals are considered as an ideal anode for high-energy batteries due to extremely high theoretical specific capacity (3860 and 1165 mAh g À 1 for Li and Na, respectively) and low electrochemical potential (À 3.04 V for Li and À 2.71 V for Na vs. standard hydrogen electrode). Unfortunately, uncontrolled dendrite growth, high reactivity, and infinite volume change induce severe safety concerns and poor cycle efficiency during their application. Consequently, MBs are far from commercialization stage. This Review represents a comprehensive overview of failure mechanism of lithium/sodium metal anode and its progress for rechargeable batteries through (i) electrolyte optimization, (ii) artificial solidelectrolyte interphase (SEI) layer formation, and (iii) nanoengineering at materials level in current collector, anode, and host. The challenges in current MBs research and potential applications of lithium/sodium metal anodes are also outlined and summarized.

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Electro-deposition of the lithium metal anode on dendritic copper current collectors for lithium battery application

Cited by 31 publications

References 38 publications

Increasing Current Density of Li-Mediated Ammonia Synthesis with High Surface Area Copper Electrodes

Increasing Current Density of Li-Mediated Ammonia Synthesis with High Surface Area Copper Electrodes

Lightweight Through-Hole Copper Foil as a Current Collector for Lithium-Ion Batteries

Research Progress and Perspective on Lithium/Sodium Metal Anodes for Next‐Generation Rechargeable Batteries

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