Uniform lithium deposition guided by Au nanoparticles in vertical-graphene/carbon-cloth skeleton for dendrite-free and stable lithium metal anode

Xu, Tingting; Hou, Lijuan; Yan, Congcong; Hou, Jingrui; Tian, Bofang; Yuan, Huiyu; Kong, Dezhi; Wang, Hui; Li, Xinjian; Wang, Ye; Zhang, Guopeng

doi:10.1016/j.scriptamat.2023.115352

Cited by 10 publications

(3 citation statements)

References 30 publications

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“…In contrast, the CEs of the HCT‐CC electrode descended after 200 cycles (400 h) although appropriate reversibility appeared for the first 50 cycles, and the largely increased voltage hysteresis can be attributed to the unstable SEI and Na deposits upon extensive cycling processes due to the absence of sodiophilic Au. [ 19 ] The Na||Cu cells underwent severe capacity degradation and a sudden short circuit after 50 cycles. It is worth emphasizing that the Au/HCT‐CC electrodes can also preserve small polarizations with marginal voltage fluctuations under a competitively high current density of 10 mA cm −2 and a high capacity utilization of 20 mAh cm −2 (Figure 2b; Figure S8, supporting information).…”

Section: Resultsmentioning

confidence: 99%

Self‐Confinement of Na Metal Deposition in Hollow Carbon Tube Arrays for Ultrastable and High‐Power Sodium Metal Batteries

Hou,

Xu,

Wang

et al. 2024

Adv Funct Materials

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Sodium metal batteries are promising next‐generation energy storage technology by using energy‐dense and affordable Na metal anodes, yet suffering uncontrollable Na dendritic growth issues. Herein, Au nanoparticle@hollow amorphous carbon tube yolk/shell arrays (Au/HCT‐CC) is rationally designed on carbon cloth as a dynamic host. In situ transmission electron microscopy observations reveal a regulated dendrite‐free Na metal plating/stripping within the Au/HCT‐CC host. The self‐confinement of Na metal deposition in the hollow carbon can further stabilize the electrolyte/electrode interface and homogenize Na ion flux, as evidenced by rigorous experimental and theoretical characterizations, thus successfully accommodating the hurdles to Na metal anodes. When cycling in half cells, the Au/HCT‐CC electrodes deliver remarkably high coulombic efficiencies (CEs) of 99.96% over 2200 h at 5 mA cm−2. The high CE of 99.54% is preserved even under harsh cycling conditions of 10 mA cm−2 and 20 mAh cm−2 for 250 cycles. These values rival the state‐of‐the‐art electrochemical performance for Na metal anodes in literature. Finally, the practical feasibility of the new anode is demonstrated by cycling in Na3V2(PO4)3@C||Na‐Au/HCT‐CC full cells over 900 cycles with an extremely low capacity degradation rate of 0.017% per cycle.

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Section: Resultsmentioning

confidence: 99%

Self‐Confinement of Na Metal Deposition in Hollow Carbon Tube Arrays for Ultrastable and High‐Power Sodium Metal Batteries

Hou,

Xu,

Wang

et al. 2024

Adv Funct Materials

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“…The second approach utilizes lithiophilic materials for the Cu CC modification. Materials like Ag, Au, Zn, Mg, Sn, and other metals, , as well as metal oxides and organic compounds, , can be employed to lower lithium nucleation overpotential and enhance cycle performance. However, some lithiophilic nanomaterials may lack SEI optimization, leading to a reduced battery performance at high rates.…”

Section: Introductionmentioning

confidence: 99%

Lithiophilic Zn₃N₂-Modified Cu Current Collectors by a Novel FCVA Technology for Stable Anode-Free Lithium Metal Batteries

Zhu,

Wu,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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Anode-free lithium metal batteries (AFLMBs) offer high-energy-density battery systems, but their commercial viability is hindered by irregular lithium dendrite growth and “dead Li” formation caused by current collector defects. This study employed filtered cathode vacuum arc (FCVA) technology to fabricate Cu current collectors (CCs) with a lithiophilic Zn3N2 film. This advanced preparation process ensures an evenly distributed film that reduces the nucleation overpotential, homogenizes the interfacial electric field during plating/stripping processes, inhibits lithium dendrite growth, and forms a stable solid-electrolyte interphase (SEI). Our results show that the advanced Zn3N2@Cu CCs exhibit superior performance with a high CE of above 99.3% after 230 cycles at a current density of 0.5 mA cm–2 and an area capacity of 1 mAh cm–2. Additionally, Li–Zn3N2@Cu||Li–Zn3N2@Cu symmetrical cells had a longer stable cycle time of over 1000 h than that of Li||Li and Li–Cu||Li–Cu symmetrical cells at a current density of 1 mA cm–2 and an area capacity of 2 mAh cm–2. Compared with bare Cu CCs, the capacity retention rate is increased from 14.9 to 63.1% after 100 cycles with a 0.5C rate in the AFLMBs with LFP as the cathode. This work provides a pioneering, eco-friendly, and effective solution for the fabrication of anode CCs in AFLMBs, addressing a significant challenge in their commercial application.

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“…Microscopic observations provided insights into the interactions between platinum and lithium. Recent studies of gold seed layers − have shown their role in improving the efficiency and lifetime of AFSSBs. The work of Krauskopf et al has investigated the effects of morphological instability of lithium metal anodes in the presence of gold seed layers.…”

Section: Introductionmentioning

confidence: 99%

Influence of Au, Pt, and C Seed Layers on Lithium Nucleation Dynamics for Anode-Free Solid-State Batteries

Müller,

Paravicini,

Morzy

et al. 2023

ACS Appl. Mater. Interfaces

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In the concept of anode-free lithium-ion batteries, cells are manufactured with a bare anode current collector where the lithium metal anode is electrochemically formed from the lithium-containing cathode during the first charge cycle. While this concept has many attractive aspects from a manufacturing and energy density standpoint, stable plating and stripping remain challenging. We have investigated gold, platinum, and amorphous carbon as seed layers placed between the copper current collector and the lithium phosphorus oxynitride thin-film solid electrolyte. These layers guide lithium nucleation and improve the plating and stripping dynamics. All seed layers facilitate reversible lithium plating and stripping even at high current densities up to 8 mA cm −2 . Of particular note is the amorphous carbon seed layer, which allowed a significant reduction in plating potential from 300 mV to as low as 50 mV. These results underscore the critical role of seed layers in improving the efficiency of anode-free solid-state batteries and open the door to simplified manufacturing of anode-free battery designs.

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Uniform lithium deposition guided by Au nanoparticles in vertical-graphene/carbon-cloth skeleton for dendrite-free and stable lithium metal anode

Cited by 10 publications

References 30 publications

Self‐Confinement of Na Metal Deposition in Hollow Carbon Tube Arrays for Ultrastable and High‐Power Sodium Metal Batteries

Self‐Confinement of Na Metal Deposition in Hollow Carbon Tube Arrays for Ultrastable and High‐Power Sodium Metal Batteries

Lithiophilic Zn₃N₂-Modified Cu Current Collectors by a Novel FCVA Technology for Stable Anode-Free Lithium Metal Batteries

Influence of Au, Pt, and C Seed Layers on Lithium Nucleation Dynamics for Anode-Free Solid-State Batteries

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Uniform lithium deposition guided by Au nanoparticles in vertical-graphene/carbon-cloth skeleton for dendrite-free and stable lithium metal anode

Cited by 10 publications

References 30 publications

Self‐Confinement of Na Metal Deposition in Hollow Carbon Tube Arrays for Ultrastable and High‐Power Sodium Metal Batteries

Self‐Confinement of Na Metal Deposition in Hollow Carbon Tube Arrays for Ultrastable and High‐Power Sodium Metal Batteries

Lithiophilic Zn3N2-Modified Cu Current Collectors by a Novel FCVA Technology for Stable Anode-Free Lithium Metal Batteries

Influence of Au, Pt, and C Seed Layers on Lithium Nucleation Dynamics for Anode-Free Solid-State Batteries

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Product

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Lithiophilic Zn₃N₂-Modified Cu Current Collectors by a Novel FCVA Technology for Stable Anode-Free Lithium Metal Batteries