Porous equipotential body with heterogeneous nucleation sites: A novel 3D composite current collector for lithium metal anode

Jia, Weishang; Chen, Tao; Wang, Ying; Qu, Siji; Yao, Zeyu; Liu, Yu-Chi; Yin, You; Zou, Wei; Fu, Zhen‐Guo; Li, Jingze

doi:10.1016/j.electacta.2019.04.054

Cited by 25 publications

(9 citation statements)

References 55 publications

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“…Selfsupported carbon nanofibers are the preferred carbon frame, as they exhibit the advantages of high specific open surface area, macroporous structure, and well-defined conducting network, and can be easily fabricated by electrospinning. [110][111][112][113][114] Ag, [110] TiN, [111] Li 6.4 La 3 Zr 2 Al 0.2 O 12 , [112] Sn, [113] and Cu nanoparticles [114] were used as lithiophilic materials on the surface of carbon networks, and the resulting composites delivered high areal and volumetric capacities of 16 mAh cm −2 and 1600 mAh cm −3 , respectively, which led to a low overpotential of <25 mV and a long lifetime of 1000 h (Figure 7a). [110][111][112][113][114] As a carbon framework, GNSs with a large surface area and oxygenated functional groups were also used in combination with lithiophilic metal-based Reproduced with permission.…”

Section: D Carbon Framework With Lithiophilic Metal-based Nanopartimentioning

confidence: 99%

“…1.0 mA cm −2 , 1.0 mAh cm −2 , 1200 h 1 m LiTFSI in DOL:DME (1:1) with 2 wt% LiNO 3 [114] Carbon and other parameters on the performance of 3D carbonbased electrodes need to be studied.…”

Section: Conclusion and Comprehensive Perspectivesmentioning

confidence: 99%

“…[ 110–114 ] Ag, [ 110 ] TiN, [ 111 ] Li 6.4 La 3 Zr 2 Al 0.2 O 12 , [ 112 ] Sn, [ 113 ] and Cu nanoparticles [ 114 ] were used as lithiophilic materials on the surface of carbon networks, and the resulting composites delivered high areal and volumetric capacities of 16 mAh cm −2 and 1600 mAh cm −3 , respectively, which led to a low overpotential of <25 mV and a long lifetime of 1000 h ( Figure a). [ 110–114 ] As a carbon framework, GNSs with a large surface area and oxygenated functional groups were also used in combination with lithiophilic metal‐based nanoparticles. [ 115–118 ] The effective surface area of GNSs was further increased through template‐guided self‐assembly, [ 115 ] while the introduction of nitrogen‐containing functional groups increased GNS lithiophilicity.…”

Section: Metal‐carbon Hybrid Electrode Materialsmentioning

confidence: 99%

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Advances in the Design of 3D‐Structured Electrode Materials for Lithium‐Metal Anodes

2020

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In view of their high energy densities, absence of memory effects, and high round-trip energy efficiencies, conventional lithium-ion batteries (LIBs) are widely used on scales ranging from compact electronic devices to grid systems [8,9] but are currently reaching their maximal capacity, as their specific/volumetric energy densities are limited by the use of heavy metal-based active host materials. [10,11] The use of Li as a high-energy active anode material is a possible solution to this problem, as this metal exhibits a high theoretical capacity of ≈3860 mAh g −1 and a low redox potential (−3.040 V vs the standard hydrogen electrode). [12,13] However, the Li-metal anode (LMA) has some fatal drawbacks originating from highaspect-ratio metal growth, e.g., continuous electrolyte consumption, Coulombic efficiency (CE) reduction, elevated cell polarization due to side reactions producing dead Li, and safety issues caused by electrode short-circuiting. [14,15] Recently, these drawbacks have been addressed by several approaches such as electrode design and electrolyte engineering. [16-21] Metal growth can be described by a first-order linear equation as Although the lithium-metal anode (LMA) can deliver a high theoretical capacity of ≈3860 mAh g −1 at a low redox potential of −3.040 V (vs the standard hydrogen electrode), its application in rechargeable batteries is hindered by the poor Coulombic efficiency and safety issues caused by dendritic metal growth. Consequently, careful electrode design, electrolyte engineering, solid-electrolyte interface control, protective layer introduction, and other strategies are suggested as possible solutions. In particular, one should note the great potential of 3D-structured electrode materials, which feature high active specific surface areas and stereoscopic structures with multitudinous lithiophilic sites and can therefore facilitate rapid Li-ion flux and metal nucleation as well as mitigate Li dendrite formation through the kinetic control of metal deposition even at high local current densities. This progress report reviews the design of 3D-structured electrode materials for LMA according to their categories, namely 1) metal-based materials, 2) carbon-based materials, and 3) their hybrids, and allows the results obtained under different experimental conditions to be seen at a single glance, thus being helpful for researchers working in related fields.

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Section: D Carbon Framework With Lithiophilic Metal-based Nanopartimentioning

confidence: 99%

Section: Conclusion and Comprehensive Perspectivesmentioning

confidence: 99%

Section: Metal‐carbon Hybrid Electrode Materialsmentioning

confidence: 99%

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Advances in the Design of 3D‐Structured Electrode Materials for Lithium‐Metal Anodes

2020

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“…[ 21–26 ] The result is that Li + ions tend to aggregate on the surface rather than interior of the CF, leading to the growth of lithium dendrites and the low utilization of the large space within the CF, which lowers the energy density of the battery. [ 27 ]…”

Section: Introductionmentioning

confidence: 99%

“…[21][22][23][24][25][26] The result is that Li + ions tend to aggregate on the surface rather than interior of the CF, leading to the growth of lithium dendrites and the low utilization of the large space within the CF, which lowers the energy density of the battery. [27] Introducing an "external strategy" such as an additional magnetic field can be a novel method to guide the lithium to deeply deposit into the current collector. [28,29] The magnetic field, which is beneficial to refining the crystal grains, is widely used in electrochemical machining.…”

mentioning

confidence: 99%

Lithiophilic 3D Copper‐Based Magnetic Current Collector for Lithium‐Free Anode to Realize Deep Lithium Deposition

Zhang

Chen

Wen

et al. 2021

Adv Funct Materials

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Lithium metal is the ideal anode material for high-energy-density lithiumbased batteries. Nevertheless, lithium metal tends to accumulate on the surface of the current collector during the plating and stripping process to form lithium dendrites, resulting in low Coulombic efficiency and safety issues. Here, a lithiophilic 3D copper-based magnetic current collector is designed by loading ferromagnetic nickel-cobalt alloy and lithiophilic zinc oxide onto the copper foam to create a lithium-free anode. Under the micromagnetic field, the novel lithium-free anode achieves a high level of deep lithium deposition (from 300 µm to about 1000 µm), successfully alleviating the large change of lithium volume. In addition, the Coulombic efficiency and cyclic stability are improved effectively. With a total capacity of 1 mA h cm −2 at a current density of 1 mA cm −2 , the Coulombic efficiency of the above remains 95% at 590th-cycle. Moreover, the symmetric cell can stably cycle for more than 560 h at 2 mA cm −2 with the capacity of 1 mA h cm −2 . This novel strategy will potentially open up new horizons for lithium-free anodes, which may be generalized to other advanced energy storage systems.

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Carbon‐coated current collectors in lithium‐ion batteries and supercapacitors: Materials, manufacture and applications

Hao,

Tan,

et al. 2024

Carbon Energy

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The current collector is a crucial component in lithium‐ion batteries and supercapacitor setups, responsible for gathering electrons from electrode materials and directing them into the external circuit. However, as battery systems evolve and the demand for higher energy density increases, the limitations of traditional current collectors, such as high contact resistance and low corrosion resistance, have become increasingly evident. This review investigates the functions and challenges associated with current collectors in modern battery and supercapacitor systems, with a particular focus on using carbon coating methods to enhance their performance. Surface coating, known for its simplicity and wide applicability, emerges as a promising solution to address these challenges. The review provides a comprehensive overview of carbon‐coated current collectors across various types of metal and nonmetal substrates in lithium‐ion batteries and supercapacitors, including a comparative analysis of coating materials and techniques. It also discusses methods for manufacturing carbon‐coated current collectors and their practical implications for the industry. Furthermore, the review explores prospects and opportunities, highlighting the development of next‐generation high‐performance coatings and emphasizing the importance of advanced current collectors in optimizing energy device performance.

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Porous equipotential body with heterogeneous nucleation sites: A novel 3D composite current collector for lithium metal anode

Cited by 25 publications

References 55 publications

Advances in the Design of 3D‐Structured Electrode Materials for Lithium‐Metal Anodes

Advances in the Design of 3D‐Structured Electrode Materials for Lithium‐Metal Anodes

Lithiophilic 3D Copper‐Based Magnetic Current Collector for Lithium‐Free Anode to Realize Deep Lithium Deposition

Carbon‐coated current collectors in lithium‐ion batteries and supercapacitors: Materials, manufacture and applications

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