Sn/graphene nanocomposite with 3D architecture for enhanced reversible lithium storage in lithium ion batteries

Wang, Guoxiu; Wang, Bei; Wang, Xianlong; Park, Jinsoo; Dou, Shi Xue; Ahn, Hyo‐Jun; Kim, Ki-Won

doi:10.1039/b914650d

Cited by 531 publications

(342 citation statements)

References 37 publications

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“…[ 108,109 ] In these research efforts, G. Wang et al synthesized two different graphene-based composites. The fi rst, [ 108 ] with a 40 wt% SnO 2 content, showed performance comparable with the results previously obtained by I. Honma et al [ 32 ] In the second, [ 109 ] aiming to avoid the conversion reaction during the fi rst lithiation, SnO 2 was simultaneously reduced with GO to obtain a RGO/Sn composite. Unfortunately, despite a reduction of the 1 st cycle irreversible capacity to 35%, this composite showed the same issues of poor cycling stability and poor Coulombic effi ciency.…”

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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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%

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

et al. 2016

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“…Because these materials can typically store more than one lithium ion per one metal atom through the alloying reaction [1,13], they are capable of delivering high energy. For example, the theoretical capacity is about 4200 mA·h·g -1 for Si and about 994 mA·h·g -1 for Sn [9,11]. However, these alloying reactions are often associated with a large volume change during the charge/discharge processes, and therefore, show a rapid fading of capacity during cycling [9].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, many researchers have focused on exploring new anode materials with higher energy and power density than existing electrodes [4][5][6][7][8]. Of these, elements such as Si and Sn that alloy with Li are attractive candidates for replacing graphite due to their exceptionally high theoretical capacities [9][10][11][12]. Because these materials can typically store more than one lithium ion per one metal atom through the alloying reaction [1,13], they are capable of delivering high energy.…”

Section: Introductionmentioning

confidence: 99%

SnO2/graphene composite with high lithium storage capability for lithium rechargeable batteries

et al. 2010

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SnO 2 /graphene nanocomposites have been fabricated by a simple chemical method. In the fabrication process, the control of surface charge causes echinoid-like SnO 2 nanoparticles to be formed and uniformly decorated on the graphene. The electrostatic attraction between a graphene nanosheet (GNS) and the echinoid-like SnO 2 particles under controlled pH creates a unique nanostructure in which extremely small SnO 2 particles are uniformly dispersed on the GNS. The SnO 2 /graphene nanocomposite has been shown to perform as a high capacity anode with good cycling behavior in lithium rechargeable batteries. The anode retained a reversible capacity of 634 mA·h·g -1 with a coulombic efficiency of 98% after 50 cycles. The high reversibility can be attributed to the mechanical buffering by the GNS against the large volume change of SnO 2 during delithiation/lithiation reactions. Furthermore, the power capability is significantly enhanced due to the nanostructure, which enables facile electron transport through the GNS and fast delithiation/lithiation reactions within the echinoid-like nanoSnO 2 . The route suggested here for the fabrication of SnO 2 /graphene hybrid materials is a simple economical route for the preparation of other graphene-based hybrid materials which can be employed in many different fields.

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“…[ 43,44 ] However, only few works demonstrated the practical use of graphene in the replacement of the Li-metal anode in Li-full cell. [ 8,31 ] Herein, we developed a graphene nanoplatelets (GNPs) electrode able to deliver a stable capacity of about 450 mAh g −1 (exceeding by 25% the conventional graphite capacity) for over 300 cycles in conventional electrolyte.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of a Graphene Nanoplatelet Anode in Advanced Lithium‐Ion Batteries Using Ionic Liquid Added by a Carbonate Electrolyte

Agostini

Rizzi²,

Cesareo³

et al. 2015

Adv Materials Inter

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A Cu‐supported, graphene nanoplatelet (GNP) electrodes are reported a as high performance anode in lithium ion battery. The electrode precursor is an easy‐to‐handle aqueous ink cast on cupper foil and following dried in air. The scanning electron microscopy evidences homogeneous, micrometric flakes‐like morphology. Electrochemical tests in conventional electrolyte reveal a capacity of about 450 mAh g−1 over 300 cycles, delivered at a current rate as high as 740 mA g−1. The graphene‐based electrode is characterized using a N‐butyl‐N‐methyl‐pyrrolidiniumbis (trifluoromethanesulfonyl) imide, lithium‐bis(trifluoromethanesulfonyl)imide (Py1,4TFSI–LiTFSI) ionic liquid‐based solution added by ethylene carbonate (EC): dimethyl carbonate (DMC). The Li‐electrolyte interface is investigated by galvanostatic and potentiostatic techniques as well as by electrochemical impedance spectroscopy, in order to allow the use of the graphene‐nanoplatelets as anode in advanced lithium‐ion battery. Indeed, the electrode is coupled with a LiFePO4 cathode in a battery having a relevant safety content, due to the ionic liquid‐based electrolyte that is characterized by an ionic conductivity of the order of 10−2 S cm−1, a transference number of 0.38 and a high electrochemical stability. The lithium ion battery delivers a capacity of the order of 150 mAh g−1 with an efficiency approaching 100%, thus suggesting the suitability of GNPs anode for application in advanced configuration energy storage systems.

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Sn/graphene nanocomposite with 3D architecture for enhanced reversible lithium storage in lithium ion batteries

Cited by 531 publications

References 37 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

SnO2/graphene composite with high lithium storage capability for lithium rechargeable batteries

Characteristics of a Graphene Nanoplatelet Anode in Advanced Lithium‐Ion Batteries Using Ionic Liquid Added by a Carbonate Electrolyte

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