Graphite-Electrolyte Interface in Lithium-Ion Batteries

Nazri, M.; Yebka, B.; Nazri, G.A.

doi:10.1007/978-0-387-92675-9_6

Cited by 149 publications

(200 citation statements)

References 18 publications

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“…[2][3][4][5][6] To overcome these problems, many other materials and structure have been investigated, e.g., metal oxide such as LiCoO 2 , LiFePO 4 , and LiMnO 2 , [3][4][5][6] where Li atoms can be stored in layers within these metal oxides. However, these materials are found to have very small practical capacities of 140 mAhg À1 , 170 mAhg À1 , and 119 mAhg À1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Li capacity in functionalized graphene: A first principle study with van der Waals correction

Chouhan

Pushpa

2015

Journal of Applied Physics

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We have investigated the adsorption of Li on graphene oxide using density functional theory. We show a novel and simple approach to achieve a positive lithiation potential on epoxy and hydroxyl functionalized graphene, compared to the negative lithiation potential that has been found on prestine graphene. We included the van der Waals correction into the calculation so as to get a better picture of weak interactions. A positive lithiation potential suggests a favorable adsorption of Li on graphene oxide sheets that can lead to an increase in the specific capacity, which in turn can be used as an anode material in Li-batteries. We find a high specific capacity of $860 mAhg À1 by functionalizing the graphene sheet. This capacity is higher than the previously reported capacities that were achieved on graphene with high concentration of Stone-Wales (75%) and divacancy (16%) defects. Creating such high density of defects can make the entire system energetically unstable, whereas graphene oxide is a naturally occurring substance. V C 2015 AIP Publishing LLC.

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Section: Introductionmentioning

confidence: 99%

Enhanced Li capacity in functionalized graphene: A first principle study with van der Waals correction

Chouhan

Pushpa

2015

Journal of Applied Physics

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“…1,2,3 Crucial for progress to understand, develop, and optimize battery materials is the capability to decipher individual mechanisms responsible for battery functionality, including Li-ion and electron transport and electrochemical kinetics locally, at the level of grain assemblies, sub-micron grains, and ultimately at the nanometer scale of individual structural and morphological defects.…”

Section: Introductionmentioning

confidence: 99%

Local probing of ionic diffusion by electrochemical strain microscopy: Spatial resolution and signal formation mechanisms

Morozovska

Eliseev

Balke

et al. 2010

Journal of Applied Physics

144

180

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“…Ionic transport and electrochemical processes in solids directly underpin a broad variety of energy conversion and storage technologies ranging from Li-ion 1 and Li-air 2 batteries to solid oxide fuel cells (SOFC). 3,4 Beyond energy applications, the applications of solid state ionic systems include electrochemical sensors and gas pumps, 5,6 as well as several classes of emerging information technology devices such as non-volatile electroresistive 7, , 8 9 and memristive 10 memories.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical strain microscopy with blocking electrodes: The role of electromigration and diffusion

Morozovska

Eliseev

Kalinin

2012

Journal of Applied Physics

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Electrochemical strains are a ubiquitous feature of solid state ionic devices ranging from ion batteries and fuel cells to electroresistive and memristive memories. Recently, we proposed a scanning probe microscopy (SPM) based approach, referred as electrochemical strain microscopy (ESM), for probing local ionic flows and electrochemical reactions in solids based on bias-strain coupling. In ESM, the sharp SPM tip concentrates the electric field in a small (10-50 nm) region of material, inducing interfacial electrochemical processes and ionic flows. The resultant electrochemical strains are determined from dynamic surface displacement and provide information on local electrochemical functionality. Here, we analyze image formation mechanism in ESM for a special case of mixed electronic-ionic conductor with blocking tip electrode, and determine frequency dependence of response, role of diffusion and electromigration effects, and resolution and detection limits. * Sergei2@ornl.gov 1

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Graphite-Electrolyte Interface in Lithium-Ion Batteries

Cited by 149 publications

References 18 publications

Enhanced Li capacity in functionalized graphene: A first principle study with van der Waals correction

Enhanced Li capacity in functionalized graphene: A first principle study with van der Waals correction

Local probing of ionic diffusion by electrochemical strain microscopy: Spatial resolution and signal formation mechanisms

Electrochemical strain microscopy with blocking electrodes: The role of electromigration and diffusion

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