Inhibiting the growth of lithium dendrites at high current densities with oriented graphene foam

Ma, Yinxing; Yao, Bowen; Zhang, Miao; Bai, Hua; Shi, Gaoquan

doi:10.1039/c8ta04911d

Cited by 25 publications

(14 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, Luo et al have designed a patterned rGO/Li (P‐rGO/Li) anode, as illustrated in Figure 3N, for which not only rGO itself shows many lithiophilic sites but also the patterned structure design can regulate electric field and Li plating direction into a horizontal centripetally grown behavior 72 . As a result, the P‐rGO/Li||LiFePO 4 full cells, with high areal capacities of LiFePO 4 cathodes and anodes of 2 and 10 mAh/cm 2 , respectively, deliver excellent rate capability from 0.2 to 3 C. Ma et al 75 have successfully settled the problem in uncontrollable Li plating by oriented graphene foam (OGF) with channels perpendicular to the electrode surface. The vertical channels with micro‐sized gaps interactively facilitate Li‐ions diffusion and equalize Li‐ions distribution, leading to the deposition of Li into vertical graphene orderly.…”

Section: Carbon‐based Host Materials For Li‐metal Anodesmentioning

confidence: 99%

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

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

Section: Carbon‐based Host Materials For Li‐metal Anodesmentioning

confidence: 99%

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

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Different from the hollow graphene foam, oriented graphene foam with lightweight and long‐range ordered microstructures was also reported recently to suppress the formation of Li dendrites at high current densities (Figure 4g,h). [ 86 ] The graphene oxide walls were internally connected, and most of them were perpendicular to the cross‐section of the oriented graphene foam cylinder. The average width of the channels was about 33.7 µm, which facilitated the diffusion of Li + ions into the oriented graphene foam.…”

Section: D Porous Current Collectorsmentioning

confidence: 99%

Constructing 3D Porous Current Collectors for Stable and Dendrite‐Free Lithium Metal Anodes

Chen

et al. 2022

Advanced Sustainable Systems

View full text Add to dashboard Cite

Lithium metal batteries (LMBs) are considered promising candidates for the next‐generation rechargeable batteries due to the ultrahigh theoretical specific capacity (3860 mAh g−1) and the lowest negative electrochemical potential (−3.040 V versus the standard hydrogen anode) of lithium metal. However, the practical application of LMBs has been hindered by various serious challenges, especially the low cycling stability of lithium anodes due to the uncontrolled growth of lithium dendrites, unstable solid–electrolyte interphase, and excessive volume change of lithium metal. 3D lithium metal anodes with reduced local current density and alleviated volume expansion can be used to improve the safety performance of LMBs. The design of various 3D structures is therefore critical to achieve high‐performance lithium metal anodes. This review summarizes recent advances of several important 3D porous structures such as foam structures, parallel arrays, interweaved structures, coiled structures, Janus structures, gradient structures, and alloy frameworks for stable and dendrite‐free lithium metal anodes. The constructing strategies and modification methods of 3D lithium metal anodes are discussed in detail. The design and construction of novel 3D porous current collectors are expected to provide promising opportunities for the next‐generation of high‐energy‐density LMBs.

show abstract

“…To fabricate the 3D foamed electrodes for LIBs and SIBs, two approaches to construct 3D frameworks are usually considered. One is using carbon monolith derived from traditional polymer, [ 18,60–64 ] and the other is based on carbon materials (i.e., graphene, [ 65–67 ] carbon nanotube, [ 68 ] and graphite [ 38 ] ) that are usually combined with the metal foams. Currently, the former fabrication of 3D foamed‐electrode can be optimized by the synthesis condition of polymerization and pyrolysis temperature.…”

Section: Architectural Models Of 3d Carbon‐based Electrodementioning

confidence: 99%

Design Strategies of 3D Carbon‐Based Electrodes for Charge/Ion Transport in Lithium Ion Battery and Sodium Ion Battery

Zhang

Ran

2021

Adv Funct Materials

119

View full text Add to dashboard Cite

Advanced 3D carbon‐based electrodes have the potential to significantly enhance the energy‐power density of lithium ion batteries and sodium ion batteries, due to their continuous conductive networks, proper porosity distribution, and integrated stable structure. However, it still remains a fundamental scientific challenge to accurately understand the charge/ion transport in 3D carbon‐based electrodes. In this review, the operating mechanism of charge/ion transport in 3D carbon‐based electrodes are comprehended by introducing a useful architectural analogy to provide a physical insight. In order to better understand the relationship between 3D carbon‐based electrode structure and electrode process characteristics, the main design strategies of 3D carbonbased electrodes according to the specific characteristic of pore tortuosity is proposed. Through analysis of 3D carbon electrode architectural models, several key scientific issues and related characterization technologies that are beneficial to improving the charge/ion transport efficiency are also raised. The kinetics difference of ionic transport between Li+ and Na+ ions is also taken into account. Furthermore, the critical parameters of porous structure including porosity and tortuosity to investigate the parameter‐structure‐performance relationships of 3D carbon‐based architecture electrodes are highlighted, which in turn would guide more rational battery design in tradeoff between the high capacity and fast transport.

show abstract

Inhibiting the growth of lithium dendrites at high current densities with oriented graphene foam

Abstract: Oriented graphene foam performs well in inhibition of Li dendrite formation at 1, 2 and 5 mA cm−2 as a current collector.

Cited by 25 publications

References 30 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

Constructing 3D Porous Current Collectors for Stable and Dendrite‐Free Lithium Metal Anodes

Design Strategies of 3D Carbon‐Based Electrodes for Charge/Ion Transport in Lithium Ion Battery and Sodium Ion Battery

Contact Info

Product

Resources

About