Graphene as a conductive additive to enhance the high-rate capabilities of electrospun Li4Ti5O12 for lithium-ion batteries

Zhu, Nan; Wen, Liping; Xue, Mianqi; Xie, Zhuang; Zhao, Dan; Zhang, Meining; Chen, Jitao; Cao, Tingbing

doi:10.1016/j.electacta.2010.05.029

Cited by 231 publications

(114 citation statements)

References 34 publications

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“…Alongside with the fi rst examples of Si-containing graphene composites, [ 38,41,52,118 ] few other electrochemical studies on graphene/Li 4 Ti 5 O 12 (i.e., RGO/LTO) hybrid [ 119 ] (where graphene was only used as conductive matrix, similarly to the graphene/TiO 2 composites previously mentioned), and graphene-containing composites (i.e., RGO/nitridated-TiO 2 , [ 120 ] RGO/SnO 2 , [ 49,50,121,122 ] arc-discharged graphene/SnO 2 [ 123 ] and RGO/SnSb, [ 124 ] hybrids) were performed in this period (Table 2 ). Unfortunately, except for the RGO/LTO hybrid [ 119 ] which showed an excellent stability at high current for more than 1300 cycles (maybe also due to the minimal RGO content, i.e., 1 wt%), none of the proposed systems overcame the previously mentioned drawbacks of graphene.…”

Section: Graphene-containing Materials As a Li-ion Hostsmentioning

confidence: 99%

“…Unfortunately, except for the RGO/LTO hybrid [ 119 ] which showed an excellent stability at high current for more than 1300 cycles (maybe also due to the minimal RGO content, i.e., 1 wt%), none of the proposed systems overcame the previously mentioned drawbacks of graphene. Interestingly though, crucial advances in the synthesis of the metal particles …”

Section: Graphene-containing Materials As a Li-ion Hostsmentioning

confidence: 99%

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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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Section: Graphene-containing Materials As a Li-ion Hostsmentioning

confidence: 99%

Section: Graphene-containing Materials As a Li-ion Hostsmentioning

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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“…Poor conductivity is detrimental to the performance of a high-rate Li-ion anode where efficient electron transport is paramount. Typically, carbon coatings [107][108][109][110][111][112][113], carbon [114,115] or graphene nanocomposites [116,117], dopants [118][119][120][121] or surface modifiers [122,123], may be introduced to increase electrical conductivity. Surface modification is an effective means to shorten electronic pathways and alternatives to carbon layers are increasingly attractive [122].…”

Section: Li4ti5o12 (Lto)mentioning

confidence: 99%

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

et al. 2013

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Access to the full text of the published version may require a subscription. Rights © Tsinghua University Press and Springer-Verlag Berlin ABSTRACTThe performance of the lithium-ion cell is heavily dependent on the ability of the host electrodes to accommodate and release Li + ions from the local structure. While the choice of electrode materials may define parameters such as cell potential and capacity, the process of intercalation may be physically limited by the rate of solid-state Li + diffusion. Increased diffusion rates in lithium-ion electrodes may be achieved through a reduction in the diffusion path, accomplished by a scaling of the respective electrode dimensions.In addition, some electrodes may undergo large volume changes associated with charging and discharging, the strain of which, may be better accommodated through nanostructuring. Failure of the host to accommodate such volume changes may lead to pulverisation of the local structure and a rapid loss of capacity. In this review article, we seek to highlight a number of significant gains in the development of nanostructured lithium-ion battery architectures (both anode and cathode), as drivers of potential next-generation electrochemical energy storage devices.

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“…In recent years, lithium-ion batteries (LIBs) have played an important role in power tools, electronic and telecommunication devices [1,2]. LiCoO 2 is the widely applied cathode material in the commercial LIBs owing to its good electrochemical properties and the convenience of preparation, but it suffers from high cost, toxicity, and unsafety [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

et al. 2011

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In this study, LiFePO 4 /C is synthesized via a novel two-step method. The first step is the synthesis of nano-sized intermediate FePO 4 by a modified sol-gel method. A fast and full combustion procedure is involved to remove carbon and control the size of the intermediate particles. The second step is to prepare LiFePO 4 /C by combining solid-state reaction with controllable carbon coating. This two-step method is facile to prepare nanosized LiFePO 4 and easy to optimize the carbon content for surface coating. X-ray diffraction shows that the LiFePO 4 / C composite possesses good crystallinity. Spherical morphology with a diameter of 30-150 nm is observed by scanning electron microscope and transmission electron microscope. Electrochemical measurements indicate that the LiFePO 4 /C composite exhibits discharge capacities of 162, 144, 126, and 106 mAh g -1 at 0.1, 1, 2, and 5C, respectively. No capacity fading is observed in 50 cycles.

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Graphene as a conductive additive to enhance the high-rate capabilities of electrospun Li4Ti5O12 for lithium-ion batteries

Cited by 231 publications

References 34 publications

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

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

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

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