Graphene in lithium ion battery cathode materials: A review

Kučinskis, Gints; Bajārs, Gunārs; Kleperis, Jānis

doi:10.1016/j.jpowsour.2013.03.160

Cited by 572 publications

(342 citation statements)

References 183 publications

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“…The electric power, however, limits these aircraft. Advances in materials used for lithium batteries (e.g., [46,47]) may significantly improve the flight duration although, at the present time, the gain of weight resulting from carrying high capacity batteries often offsets the gain in endurance.…”

Section: Low Altitude Short Endurance (Lase) Uasmentioning

confidence: 99%

The Use of Unmanned Aerial Systems in Marine Mammal Research

et al. 2017

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Unmanned aerial systems (UAS), commonly referred to as drones, are finding applications in several ecological research areas since remotely piloted aircraft (RPA) technology has ceased to be a military prerogative. Fixed-wing RPA have been tested for line transect aerial surveys of geographically dispersed marine mammal species. Despite many advantages, their systematic use is far from a reality. Low altitude, long endurance systems are still highly priced. Regulatory bodies also impose limitations while struggling to cope with UAS rapid technological evolution. In contrast, small vertical take-off and landing (VTOL) UAS have become increasingly affordable but lack the flight endurance required for long-range aerial surveys. Although this issue and civil aviation regulations prevent the use of VTOL UAS for marine mammal abundance estimation on a large scale, recent studies have highlighted other potential applications. The present note represents a general overview on the use of UAS as a survey tool for marine mammal studies. The literature pertaining to UAS marine mammal research applications is considered with special concern for advantages and limitations of the survey design. The use of lightweight VTOL UAS to collect marine mammal behavioral data is also discussed.

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Section: Low Altitude Short Endurance (Lase) Uasmentioning

confidence: 99%

The Use of Unmanned Aerial Systems in Marine Mammal Research

et al. 2017

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“…In Li-ion batteries, graphene either single or multilayer is able to uptake large amounts of Li ions, even higher than commercial graphite, between the graphene sheets and therefore can be used as an active anode material by itself [3,[6][7][8][9] or due to its very high electronic conductivity and high aspect ratio (i.e. low percolation threshold ∼1 wt%) can be used in a composite as a conductive additive and reinforcing component (both in anode and cathode materials) [6,7,[10][11][12]. Graphene is also very promising for use with Li-ion anode materials undergoing high volume changes during Li uptake such as transition metal oxides, tin and silicon [7,12].…”

Section: Introductionmentioning

confidence: 99%

Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation

Naboka

Yim

Abu-Lebdeh

2016

Materials Science and Engineering: B

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1016/j.mseb.2016.04.003Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation Naboka, Olga; Yim, Chae-Ho; Abu-Lebdeh, Yaser http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/droits L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=53b49153-7e23-4e60-9847-41177eef882f http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=53b49153-7e23-4e60-9847-41177eef882f In the present work, we report a sonication-assisted exfoliation method of graphene preparation enhanced by the use of microwave heating and "green" exfoliant -sodium carboxymethyl cellulose (NaCMC). Introducing microwave heating during sonication of graphite dispersions in aqueous solutions of NaCMC results in the formation of graphene dispersions with concentration as high as 4.29 mg/ml. It is found that drying the dispersions results in the formation of graphene/NaCMC composites with graphene content up to 38.65 wt%. A study of the composite with High Resolution Transmission Electron Microscopy and Raman Spectroscopy reveals the formation of few-layer graphene approximately below five layers. The as-prepared graphene/NaCMC composite shows higher capacities than commercial graphite in Li-ion half cells reaching 397 mAh/g (graphene) . Also, when the composite is used with a nanosilicon (33 wt%) in a Li-ion half cell high initial reversible capacities of 1611 mAh/g (Si) with good cyclability and rate capability have been reached.

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“…14 The reduced graphene oxide (denoted as rGO) sheets are usually considered as one kind of chemically derived graphene. 15 In current research, graphene and rGO are found to significantly improve the rate capability and cyclability of some cathode materials such as LiFePO 4 , Li 3 V 2 (PO 4 ) 3 , LiMn 2 O 4 , and so forth.…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide Modified Li₂FeSiO₄/C Composite with Enhanced Electrochemical Performance as Cathode Material for Lithium Ion Batteries

Zhang

Duan

Yang

et al. 2013

ACS Appl. Mater. Interfaces

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Reduced graphene oxide modified Li 2 FeSiO 4 /C (LFS/(C+rGO)) composite is successfully synthesized by a citric-acid-based sol−gel method and evaluated as cathode material for lithium ion batteries. The LFS/(C+rGO) shows an improved electronic conductivity due to the conductive network formed by reduced graphene oxide nanosheets and amorphous carbon in particles. Electrochemical impedance spectroscopy results indicate an increased diffusion coefficient of lithium ions (2.4 × 10 −11 cm 2 s −1) for LFS/(C+rGO) electrode. Compared with LFS with only amorphous carbon, the LFS/(C+rGO) electrode exhibits higher capacity and better cycling stability. It delivers a reversible capacity of 178 mAh g −1 with a capacity retention ratio of 94.5% after 40 cycles at 0.1 C, and an average capacity of 119 mAh g −1 at 2 C. The improved performance can be contributed to the reduced crystal size, good particle dispersion, and the improved conductive network between LFS particles.

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Graphene in lithium ion battery cathode materials: A review

Cited by 572 publications

References 183 publications

The Use of Unmanned Aerial Systems in Marine Mammal Research

The Use of Unmanned Aerial Systems in Marine Mammal Research

Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation

Reduced Graphene Oxide Modified Li₂FeSiO₄/C Composite with Enhanced Electrochemical Performance as Cathode Material for Lithium Ion Batteries

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Graphene in lithium ion battery cathode materials: A review

Cited by 572 publications

References 183 publications

The Use of Unmanned Aerial Systems in Marine Mammal Research

The Use of Unmanned Aerial Systems in Marine Mammal Research

Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation

Reduced Graphene Oxide Modified Li2FeSiO4/C Composite with Enhanced Electrochemical Performance as Cathode Material for Lithium Ion Batteries

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Product

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About

Reduced Graphene Oxide Modified Li₂FeSiO₄/C Composite with Enhanced Electrochemical Performance as Cathode Material for Lithium Ion Batteries