Graphene‐Encapsulated Si on Ultrathin‐Graphite Foam as Anode for High Capacity Lithium‐Ion Batteries

Ji, Junyi; Ji, Hengxing; Zhang, Li Li; Zhao, Xin; Bai, Xin; Fan, Xiaobin; Zhang, Fengbao; Ruoff, Rodney S.

doi:10.1002/adma.201301530

Cited by 330 publications

(235 citation statements)

References 38 publications

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“…The first one is the low initial CE because of their high specific surface area, which is normally around 60% and has become one of the key technical problems [9,14,15,17,24,25]. The second is the poor stability of electrode due to the large volume change of Si particles during cycling [26,27]. The third is their fragile structures, which do not fit the current battery assembly process with high compact density induced by the ultimate purpose of high volumetric capacity.…”

Section: Introductionmentioning

confidence: 98%

“Concrete” inspired construction of a silicon/carbon hybrid electrode for high performance lithium ion battery

Yun

Qin

et al. 2015

Carbon

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Section: Introductionmentioning

confidence: 98%

“Concrete” inspired construction of a silicon/carbon hybrid electrode for high performance lithium ion battery

Yun

Qin

et al. 2015

Carbon

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“…Moreover, considerations about volumetric capacity were fi nally taken into account. Making use of an ultrathin graphite foam (UGF) as substrate for the dropcasting deposition of Si nanoparticles encapsulated in a RGO matrix, R. S. Ruoff et al [ 268 ] reported a 1 st cycle gravimetric lithiation capacity of 983 mAh g −1 (with respect to the total mass of the active material) and, for the fi rst time, a 1 st cycle volumetric lithiation capacity of 1016 mAh cm −3 (with respect to the total volume of the electrode) for the Si/RGO/UGF binderfree electrode (in the 0.01-2.2 V range with an applied current of 400 mA g −1 ). However, the content of RGO in the overall active material was only ca.…”

mentioning

confidence: 99%

Critical Insight into the Relentless Progression Toward Graphene and Graphene‐Containing Materials for Lithium‐Ion Battery Anodes

et al. 2016

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that its extraordinary properties would enable revolutionary new technologies, which gave birth to the "graphene era". [ 3,4 ] Relying on this scenario, in 2013, the European Union launched the ¤1 billion "Graphene Flagship" project aimed to investigate the properties of this new form of carbon for various applications (e.g., electronics, sensors and energy storage devices), with the ambitious goal of guiding graphene from laboratories to commercial applications within a decade. [ 5,6 ] In the same period, the Chinese Government set up a similar investment to mass-produce graphene as thin fi lms (e.g., for touchscreen electrodes) and platelets (e.g., for use in batteries). [ 6 ] In the following years, hundreds of patents, mainly focused on manufacturing and application in energy storage, were fi led and the worldwide production of graphene and graphene-containing materials rapidly increased. Although a few Chinese industries claimed to already use graphene-containing materials for smartphone production, no revolutionary practical application relying on graphene has been yet developed. [ 6 ] Specifi cally with respect to the battery fi eld, a close analysis of the scientifi c literature reveals a struggle to meet the ambitious initial targets. A potential loss of focus from the fi nal application caused by hype and ease of publication on such a novel matter, together with the delivery of very misleading information [ 7,8 ] and erroneous statements [ 7 ] concerning the use of graphene in batteries are emerging as possible reasons of the ineffective graphene-era outburst. In this progress report, we do not focus on production and classifi cation of graphene and graphene-containing materials, which were already well reported in the past years. [ 3,[9][10][11] In contrast, due to the lack of an exhaustive analysis of the progression of the use of such materials in lithium-ion battery (LIB) anodes, we report here a critical evaluation of the most prominent research papers published from 2008 until the end of 2015. As shown in Figure 1 , three different stages of the graphene research in LIB anodes can be distinguished: a fi rst stationary phase between 2008 and 2010 where the lithium-ion storage properties of different graphene and graphene-containing materials were preliminarily explored, a second exponential stage, spanning from 2010 to 2014, where graphene and graphene-containing anode materials were broadly developed and investigated, and fi nally, a third phase, (i.e., starting from 2015), where the research seems to have approached a plateau. After Used as a bare active material or component in hybrids, graphene has been the subject of numerous studies in recent years. Indeed, from the fi rst report that appeared in late July 2008, almost 1600 papers were published as of the end 2015 that investigated the properties of graphene as an anode material for lithium-ion batteries. Although an impressive amount of data has been collected, a real advance in the fi eld still seems to be missing. In this framework, atten...

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“…They proposed that the latter method is better for the freestanding Si-CNT anode to get a high extraction capacity at a low Si consumption, which makes the battery competitive in price. 159 Another ingenious self-supported anode was designed by Ji et al 160 They prepared a Si/graphene/UGF composite in which Si NPs encapsulated in graphene cover a UGF (ultrathingraphite foam) surface using aqueous suspensions. In addition to the strengths of graphene, the foam graphite surface not only guarantees good electronic contact in the electrode, but also does not require massive Si loading.…”

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confidence: 99%

Nanostructured anode materials for lithium-ion batteries: principle, recent progress and future perspectives

et al. 2017

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As the most commonly used potential energy conversion and storage devices, lithium-ion batteries (LIBs) have been extensively investigated for a wide range of fields including information technology, electric and hybrid vehicles, aerospace, etc. Endowed with attractive properties such as high energy density, long cycle life, small size, low weight, few memory effects and low pollution, LIBs have been recognized as the most likely approach to be used to store electrical power in the future. This review will start with a brief introduction to charge-discharge principles and performance assessment indices. The advantages and disadvantages of several commonly studied anode materials including carbon, alloys, transition metal oxides and silicon along with lithium intercalation will be reviewed. The mechanism and synthesis methods, followed by strategies to enhance battery performance by virtue of interesting structural designs will be examined. Finally, a few issues needing further exploration will be discussed followed by a brief outline of the prospects and outlook for the LIB field.

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Graphene‐Encapsulated Si on Ultrathin‐Graphite Foam as Anode for High Capacity Lithium‐Ion Batteries

Abstract: A Si/graphene composite is drop-casted on an ultrathin-graphite foam (UGF) with three dimensional conductive network. The Si/graphene/UGF composite presents excellent stability and relatively high overall capacity when tested as an anode for rechargeable lithium ion batteries.

Cited by 330 publications

References 38 publications

“Concrete” inspired construction of a silicon/carbon hybrid electrode for high performance lithium ion battery

“Concrete” inspired construction of a silicon/carbon hybrid electrode for high performance lithium ion battery

Critical Insight into the Relentless Progression Toward Graphene and Graphene‐Containing Materials for Lithium‐Ion Battery Anodes

Nanostructured anode materials for lithium-ion batteries: principle, recent progress and future perspectives

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