Graphene/metal oxide composite electrode materials for energy storage

Wu, Zhong‐Shuai; Zhou, Guangmin; Yin, Lichang; Ren, Wencai; Li, Feng; Cheng, Hui‐Ming

doi:10.1016/j.nanoen.2011.11.001

Cited by 1,716 publications

(917 citation statements)

References 193 publications

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“…[ 11 ] It is now well recognized that the graphene properties are highly dependent on the synthetic route employed. Several reviews [ 3,5,9,11 ] have described in detail the available methods for the production of graphene-based materials. In general, these can be divided in two main categories which are, namely, topdown and bottom-up approaches.…”

Section: A Brief Excursion Into Graphene's Classifi Cation and Producmentioning

confidence: 99%

“…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.…”

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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: A Brief Excursion Into Graphene's Classifi Cation and Producmentioning

confidence: 99%

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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“…In this case, the internal supply consists of an energy harvester integrated with an RF front-end and an advanced low voltage regulator supported by a super-capacitor. The storage block of environmental energy is free of drawbacks and limitations that are inherent for the traditional galvanic cells [17,18]. The super-capacitors are maintenance-free, with low degree of wear.…”

Section: Idea Of Battery-less Autonomous Semi-passive Rfid Transpondersmentioning

confidence: 99%

Development board of the autonomous semi-passive RFID transponder

Jankowski-Mihułowicz

Węglarski

Pitera

et al. 2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The idea of multiband development board designed to support and advance the technique of battery-less autonomous semi-passive RFID transponders is presented in the paper. The extra function of harvesting energy from the electromagnetic field of different radio communications systems, the ultra efficient power conditioner and the energy storage block are applied in the proposed construction. The facility of utilizing gathered energy is provided to support designers in developing applications of automatic object identification. Since the evaluation board is to work without a galvanic cell, the particular emphasis is put on the mechanisms that improve energy efficient operation of the whole electronic circuit. The construction principles and operation modes (charging, cold start, sleep with charging, sleep, measurement and cut-off) of the storage unit are described in depth in the paper. The preproduction batch of the demonstrators has been manufactured on automated assembly line at ELMAK Ltd. Company, according to the elaborated model. It confirms that the author's demonstrator of the battery-less autonomous semi-passive transponder can be reproduced on an industrial scale. On the basis of the preproduction series, the performance parameters of the final product have been estimated. The presented study should significantly contribute to the RFID technique therefore the authors set up the evaluation process of marketing research and product commercialization. fication of moving objects, e.g. in the public transport (AVI -automatic vehicle identification) [7]. So it can be concluded that the observed applicable potential of the RFID technology justifies the need to develop new designs of electronic transponders. New more sophisticated solutions of electronic tags will be a factor of innovative progress in the discussed scope of use. Transponder in RFID systemIn terms of hardware (Fig. 1), an RFID system consists of a read/write device (RWD), which includes a transmitter (TX) and a receiver (RX), its antenna and at least one electronic transponder that is intended for marking an object. Communication in this system (read/write data) is provided with one (single system) or with multiple transponders simultaneously (anti-collision system). The marked objects during the identification process may be placed in fixed points (static system) or may dynamically change their location (dynamic system). The interrogation zone (IZ) is the main parameter of the RFID system, because it determines the efficiency of a given automated process [5]. The size of the IZ strongly depends on the above mentioned arrangements of RWD and transponders.According to the main classification of the RFID systems it is possible to distinguish applications operating in the inductive or radiative coupling regime. In the first group, the carrier frequency f 0 is between 100 kHz and 135 kHz (typically 125 kHz) for the LF band or 13.56 MHz of the HF band whereas in the

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“…4(b), are much lower, and some commonly tested organic electrolytes, such as 1 M LiClO 4 , LiBF 4 , and LiPF 6 , dissolved in acetonitrile show no pseudocapacitor behavior. This points to an optimum anion size for the attachment to the QDs.…”

Section: Iðeþ De 2váementioning

confidence: 99%

Epitaxial InN/InGaN quantum dots on Si: Cl⁻anion selectivity and pseudocapacitor behavior

Rodriguez¹,

Mari²,

Sanguinetti³

et al. 2016

Appl. Phys. Express

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Graphene/metal oxide composite electrode materials for energy storage

Cited by 1,716 publications

References 193 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

Development board of the autonomous semi-passive RFID transponder

Epitaxial InN/InGaN quantum dots on Si: Cl⁻anion selectivity and pseudocapacitor behavior

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Graphene/metal oxide composite electrode materials for energy storage

Cited by 1,716 publications

References 193 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

Development board of the autonomous semi-passive RFID transponder

Epitaxial InN/InGaN quantum dots on Si: Cl−anion selectivity and pseudocapacitor behavior

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Epitaxial InN/InGaN quantum dots on Si: Cl⁻anion selectivity and pseudocapacitor behavior