In situ constructing lithiophilic NiFx nanosheets on Ni foam current collector for stable lithium metal anode via a succinct fluorination strategy

Huang, Gaoxu; Chen, Shengrui; Guo, Pingmei; Tao, Runming; Jie, Kecheng; Liu, Ben; Zhang, Xinfang; Liang, Jiyuan; Cao, Yuan‐Cheng

doi:10.1016/j.cej.2020.125122

Cited by 83 publications

(45 citation statements)

References 41 publications

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“…This result indicates the syner-gistic role of the electronic conductive 3D Ni foams as the hosts and the [LiNBH] n layers with high Li ion conductivity as the protective roof in reducing the nucleation barrier of Li. [17,18,37] Upon increasing the Li plating capacity to 5 mAh cm À 2 (Figure 4b), the bare Li metal electrode, as expected, suffers a huge sudden elevation of overpotential after only 180 h and the cycling life of the Li@Ni electrode could be extended to 440 h owing to the presence of the conductive 3D Ni foams as the host. After that, a sharp decrease of voltage appears suddenly for the Li@Ni electrode (Figure S7a), indicating the internal short circuit of the cell due to the inevitable growth of Li dendrites that could pierce the separator.…”

Section: Resultssupporting

confidence: 70%

“…[16] Despite this progress, the electrochemical performance of Li metal anodes modified via building artificial SEI layers still fall short in efficiency and long-term stability for practical applications attributed to the infinite relative volume change of Li metal anode owing to its hostless nature during Li stripping/ plating process. Therefore, confining Li into three-dimensional hosts (e. g., 3D copper/nickel foam, [17][18][19][20][21][22] 3D nanostructured carbon, [23][24][25][26][27] etc.) has been considered as an effective way for mitigating the large volume expansion of Li metal anodes.…”

Section: Introductionmentioning

confidence: 99%

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Building a House for Stabilizing Lithium‐Metal Anodes

You

Zhang

et al. 2022

Batteries & Supercaps

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Lithium (Li) metal is regarded as one of the most promising anode candidates for future high energy density lithium batteries. The practical application of Li‐metal anodes, however, is hindered by the uncontrollable growth of dendrites resulting from both huge volume change and unstable solid‐electrolyte interfaces upon cycling. Herein, we propose a novel “house strategy” that utilizes the 3D NiO nanosheets decorated nickel foam as the frame to confine Li metal and the inorganic [LiNBH]n chains with high Li ion conductivity as the artificial protective proof to establish a stable dendrite‐free Li metal anode. Benefiting from the synergistic effect of the 3D NiO/Ni foam in lowering the local current density and accommodating the huge volume change of Li metal and the [LiNBH]n protective layer in facilitating uniform Li+ diffusion and regulating Li deposition beneath this layer, the LiNBH‐Li@Ni electrode presents an excellent long‐term cycling lifespan of over 800 h at both 1 and 3 mA cm−2 with a high areal capacity of 5 mAh cm−2 in symmetric cells. Upon coupling this anode with LiFePO4 cathode, the thus‐assembled full cells deliver an ultrahigh reversible capacity of 127.4 mAh g−1 at 1 C after 200 cycles.

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Section: Resultssupporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Building a House for Stabilizing Lithium‐Metal Anodes

You

Zhang

et al. 2022

Batteries & Supercaps

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“…Electrodeposition and thermal infusion are the two main methods to pre-store Li into these hosts as Li metal composite anodes. Various current collectors with decent conductivity have been used as hosts for Li metal by the electrodeposition approach. − The amount of pre-stored Li could be precisely controlled by the deposition time and corresponding current density. However, the electrodeposition process operates in a symmetrical cell using Li metal as counter/reference electrode and the desired host as working electrode; thus, sacrificial cells are required to obtain the final composite LMA.…”

Section: Stabilizing Lma Electrochemical Cyclingmentioning

confidence: 99%

Building Better Li Metal Anodes in Liquid Electrolyte: Challenges and Progress

Liu

Xie

2020

ACS Appl. Mater. Interfaces

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Li metal has been widely recognized as a promising anode candidate for highenergy-density batteries. However, the inherent limitations of Li metal, that is, the low Coulombic efficiency and dendrite issues, make it still far from practical applications. In short, the low Coulombic efficiency shortens the cycle life of Li metal batteries, while the dendrite issue raises safety concerns. Thanks to the great efforts of the research community, prolific fundamental understanding as well as approaches for mitigating Li metal anode safety have been extensively explored. In this Review, Li electrochemical deposition behaviors have been systematically summarized, and recent progress in electrode design and electrolyte system optimization is reviewed. Finally, we discuss the future directions, opportunities, and challenges of Li metal anodes.

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“…The lithiophilic decoration in a porous Li host can greatly reduce the nucleation overpotential and guide the uniform Li deposition. To increase the affinity or Li wettability between the lithium and 3D porous host, various polymers [56], organic coating [50], elementary substances (such as Si nanoparticles [57], plated Ag [58]), oxides (such as NiO [59], CoO [60], Co 3 O 4 [61], ZnO nanoarrays (NAs) [62]), fluorides (NiF x ) [63], nitrides (Ni 3 N) [64], and sulfides (Ag 2 S) [65] have been utilized. Li-ion transport and fast electron conduction pathways, respectively.…”

Section: Nickelmentioning

confidence: 99%

Recent Advances in Lithiophilic Porous Framework toward Dendrite-Free Lithium Metal Anode

Pathak¹,

Zhou²,

Qiao³

2020

Applied Sciences

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Rechargeable lithium metal anode (LMA) based batteries have attracted great attention as next-generation high-energy-density storage systems to fuel the extensive practical applications in portable electronics and electric vehicles. However, the formation of unstable solid-electrolyte- interphase (SEI) and growth of lithium dendrite during plating/stripping cycles stimulate safety concern, poor coulombic efficiency (CE), and short lifespan of the lithium metal batteries (LMBs). To address these issues, the rational design of micro/nanostructured Li hosts are widely adopted in LMBs. The high surface area of the interconnected conductive framework can homogenize the Li-ion flux distribution, lower the effective current density, and provides sufficient space for Li accommodation. However, the poor lithiophilicity of the micro/nanostructure host cannot govern the initial lithium nucleation, which leads to the non-uniform/dendritic Li deposition and unstable SEI formation. As a result, the nucleation overpotential and voltage hysteresis increases, which eventually leads to poor battery cycling performance. Thus, it is imperative to decorate a micro/nanostructured Li host with lithiophilic coatings or seeds for serving as a homogeneous nucleation site to guide the uniform lithium deposition. In this review, we summarize research progress on porous metal and non-metal based lithiophilic micro/nanostructured Li hosts. We present the synthesis, structural properties, and the significance of lithiophilic decorated micro/nanostructured Li host in the LMBs. Finally, the perspectives and critical challenges needed to address for the further improvement of LMBs are concluded.

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In situ constructing lithiophilic NiFx nanosheets on Ni foam current collector for stable lithium metal anode via a succinct fluorination strategy

Cited by 83 publications

References 41 publications

Building a House for Stabilizing Lithium‐Metal Anodes

Building a House for Stabilizing Lithium‐Metal Anodes

Building Better Li Metal Anodes in Liquid Electrolyte: Challenges and Progress

Recent Advances in Lithiophilic Porous Framework toward Dendrite-Free Lithium Metal Anode

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