3D lithiophilic–lithiophobic–lithiophilic dual-gradient porous skeleton for highly stable lithium metal anode

Zheng, Hongfei; Zhang, Qingfei; Chen, Qiulin; Xu, Wanjie; Xie, Qingshui; Cai, Yanfei; Ma, Yating; Qiao, Zhensong; Luo, Qing; Lin, Jie; Wang, Laisen; Qu, Baihua; Sa, Baisheng; Peng, Dong‐Liang

doi:10.1039/c9ta09505e

Cited by 88 publications

(47 citation statements)

References 59 publications

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“…Typically, 3D hosts include conductive (metallic hosts, 15,16 carbon-based hosts, 17,18 etc.) and nonconductive hosts (polymers, 19 glass fibers, 20 etc.). For the insulating frameworks, they have been demonstrated to be unfavorable for regulating the electric field distribution on the surface and Li-ion concentration gradient near the surface by reducing the local current density.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional roles of carbon‐based hosts for Li‐metal anodes: A review

et al. 2021

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With its high theoretical capacity, lithium (Li) metal is recognized as the most potential anode for realizing a high-performance energy storage system. A series of questions (severe safety hazard, low Coulombic efficiency, short lifetime, etc.) induced by uncontrollable dendrites growth, unstable solid electrolyte interface layer, and large volume change, make practical application of Li-metal anodes still a threshold. Due to their highly appealing properties, carbon-based materials as hosts to composite with Li metal have been passionately investigated for improving the performance of Li-metal batteries. This review displays an overview of the critical role of carbon-based hosts for improving the comprehensive performance of Li-metal anodes. Based on correlated mainstream models, the main failure mechanism of Li-metal anodes is introduced. The advantages and strategies of carbon-based hosts to address the corresponding challenges are generalized. The unique function, existing limitation, and recent research progress of key carbon-based host materials for Li-metal anodes are reviewed. Finally, a conclusion and an outlook for future research of carbon-based hosts are presented. This review is dedicated to summarizing the advances of carbon-based materials hosts in recent years and providing a reference for the further development of carbonbased hosts for advanced Li-metal anodes.

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Section: Introductionmentioning

confidence: 99%

Multifunctional roles of carbon‐based hosts for Li‐metal anodes: A review

et al. 2021

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“…Moreover, LSIF@Li exhibited the lowest mass‐transfer overpotential (17 mV) in the prolonged plateau region for stabilized Li deposition (Li: 30 mV, Cu: 43 mV, and SS: 24 mV, Figure 4i). These results indicate that the prelithiation process improved the lithiophilicity of LSIF@Li consisting of the micron‐sized Li–Si alloy particles, which is conducive to achieve the uniform and Li dendrite‐free plating/stripping of LSIF@Li, without unstable SEI and “dead Li.” [ 48,49 ]…”

Section: Resultsmentioning

confidence: 99%

Porous Lithiophilic Li–Si Alloy‐Type Interfacial Framework via Self‐Discharge Mechanism for Stable Lithium Metal Anode with Superior Rate

Park

Choi

et al. 2021

Advanced Energy Materials

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Lithium is regarded as an ideal anode for next‐generation Li metal batteries (LMB) as it exhibits extraordinarily high theoretical capacity and the lowest electrochemical potential among all anode candidates. However, safety concerns and poor cycling stability of Li induced by uncontrollable dendrite growth and severe side reactions impede its practical application for LMB. Although various strategies for fabricating Li anodes have been suggested, developing high‐rate LMB remains a significant challenge. To address this challenge, the use of a 3D porous Li–Si alloy‐type interfacial framework (LSIF) created via a “self‐discharge” mechanism with the aid of an electrolyte is proposed here. Exploiting the in situ spontaneous prelithiation, lithiophilic Li15Si4 particles are homogenously arranged to build porous 3D LSIF. The balanced ionic/electronic conducting LSIF serves as a stable Li host, helping to suppress dendrite growth and volume expansion during cycling. The LSIF@Li anode possesses a strong affinity toward Li, rapid Li diffusion kinetics, and low nucleation/diffusion barriers. Moreover, the LSIF@Li symmetric cells are capable of stable cycling (over 1000 cycles) even at an ultrahigh current density (15 mA cm–2). When paired with LiNi0.5Co0.2Mn0.3O2 or LiFePO4, LSIF@Li full cells show improved rate capability and long‐term cycling stability (≈2000 cycles) at 10 C.

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Section: Strategiesmentioning

confidence: 99%

Strategies to anode protection in lithium metal battery: A review

Zhao

Liu

et al. 2021

InfoMat

166

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Lithium metal batteries (LMBs) are considered the most promising energy storage devices for applications such as electrical vehicles owing to its tremendous theoretical capacity (3860 mAh g−1). However, the serious safety issues and poor cycling performance caused by the dendritic crystal growth during deposition are concerned for any rechargeable batteries with a lithium metal anode. To make widespread adoption a possibility, considerable efforts have been devoted to suppressing lithium (Li) dendrite growth. In this review, the recent strategies to developing dendrite free Li anode, including constructing an artificial solid electrolyte interface, current collector modification, separator film improvement, and electrolyte additive, are summarized. The merits and shortcomings for different strategies are reviewed and a general summary and perspective on the next generation rechargeable batteries are presented.

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3D lithiophilic–lithiophobic–lithiophilic dual-gradient porous skeleton for highly stable lithium metal anode

Abstract: A 3D porous lithiophilic–lithiophobic–lithiophilic dual-gradient CAZPZ current collector is designed to regulate homogeneous Li deposition, and the CAZPZ–Li hybrid anode has superb practical applications in different full cells.

Cited by 88 publications

References 59 publications

Multifunctional roles of carbon‐based hosts for Li‐metal anodes: A review

Multifunctional roles of carbon‐based hosts for Li‐metal anodes: A review

Porous Lithiophilic Li–Si Alloy‐Type Interfacial Framework via Self‐Discharge Mechanism for Stable Lithium Metal Anode with Superior Rate

Strategies to anode protection in lithium metal battery: A review

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