Overcharge studies of carbon fiber composite-based lithium-ion cells

Hossain, Sohrab; Kim, Y.-K.; Saleh, Yousry; Loutfy, Raouf O.

doi:10.1016/j.jpowsour.2006.04.111

Cited by 38 publications

(29 citation statements)

References 14 publications

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“…Therefore much attention has been paid in the recent years on exploring and developing novel electrode materials. Carbonaceous materials, such as graphite67, carbon nanofibers89, carbon nanotubes101112 and porous carbon1314, are promising anode materials in LIBs due to their high Li-storage capacity, high conductivity, decent electrochemical activity and low cost1516. In particular, graphene has attracted extensive research interests with a theoretical maximum lithium capacity of 784 mAh/g by forming Li 2 C 6 structure17, and an even higher capacity up to 1488 mAh/g for an isolated graphene flake that is only 0.7 nm in diameter1819.…”

mentioning

confidence: 99%

Enhanced Absorption and Diffusion Properties of Lithium on B,N,VC-decorated Graphene

Jin¹,

Shi

et al. 2016

Sci Rep

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Systematic first-principles calculations were performed to investigate the adsorption and diffusion of Li on different graphene layers with B/N-doping and/or C-vacancy, so as to understand why doping heteroatoms in graphene anode could significantly improve the performance of lithium-ion batteries. We found that the formation of single or double carbon vacancies in graphene are critical for the adsorption of Li atoms. While the N-doping facilitates the formation of vacancies, it introduces over binding issue and hinders the Li diffusion. The presence of B takes the excessive electrons from Li and N and reduces the energy barrier of Li diffusion on substrates. We perceive that these clear insights are crucial for the further development of graphene based anode materials for lithium-ion batteries.

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mentioning

confidence: 99%

Enhanced Absorption and Diffusion Properties of Lithium on B,N,VC-decorated Graphene

Jin¹,

Shi

et al. 2016

Sci Rep

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“…Because graphitic carbons have the theoretical capacity limitation below 372 mAhg −1 , considerable researches have been conducted to search out the possible alternative anode materials exhibiting higher capacity. [4][5][6] As a result, several alternative anode materials have been proposed for lithium rechargeable batteries, such as silicon, 7-12 tin, [13][14][15][16] and germanium 17 because they are all capable of alloying with more lithium than graphitic carbons. Particularly, Si has the highest theoretical capacity of 4200 mAhg −1 when forming Li 4.4 Si alloys, far greater than that of graphitic carbon.…”

Section: -3mentioning

confidence: 99%

The Effect of Low-Temperature Carbon Encapsulation on Si Nanoparticles for Lithium Rechargeable Batteries

Jung

Song²,

Kang³

2013

Bulletin of the Korean Chemical Society

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The tailored surface modification of electrode materials is crucial to realize the wanted electronic and electrochemical properties. In this regard, a dexterous carbon encapsulation technique can be one of the most essential preparation methods for the electrode materials for lithium rechargeable batteries. For this purpose, DL-malic acid (C 4 H 6 O 5 ) was here used as the carbon source enabling an amorphous carbon layer to be formed on the surface of Si nanoparticles at enough low temperature to maintain their own physical or chemical properties. Various structural characterizations proved that the bulk structure of Si doesn't undergo any discernible change except for the evolution of C-C bond attributed to the formed carbon layer on the surface of Si. The improved electrochemical performance of the carbon-encapsulated Si compared to Si can be attributed to the enhanced electrical conductivity by the surface carbon layer as well as its role as a buffering agent to absorb the volume expansion of Si during lithiation and delithiation.

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“…However, the commercialized graphite anode materials of lithium-ion batteries have low theoretical capacity (372 mA h g −1 ) and poor rate capability, which cannot fulfill the demand of high performance lithium-ion batteries. 17 18 Therefore, in the last decade, substantial efforts have been devoted to development of alternatives of the carbon anode material with higher Listorage capacities. Owing to its high theoretical specific capacity (4200 mA h g −1 ) and low discharge potentials, Si is regarded as the most promising candidate for the anode material in lithium-ion batteries.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Si-Based Anodes for Lithium-Ion Batteries

Zhu¹,

Yang²,

Li³

et al. 2015

j nanosci nanotechnol

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High capacity electrode materials are searched for commercial applications due to the increase in energy density and power density requirements for lithium-ion secondary cells. Silicon has triggered significant research effort because of its low Li-uptake potential and the high theoretical capacity. However, volume changes during cycling cause pulverization and capacity fade, which is an obstacle of the application of silicon as an anode. Here we present a review of research progress on silicon-based anode materials for lithium-ion batteries, focusing on the effects of the morphology and compound on the electrochemical properties. The reasons of poor cycle performance are discussed. It is pointed out that to control the huge volume change and solid electrolyte interface growth during cycling is an effective way to improve the cycle performance. Outlook for the future development of silicon-based composite anode materials for the application of silicon anodes are finally outlined.

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Overcharge studies of carbon fiber composite-based lithium-ion cells

Cited by 38 publications

References 14 publications

Enhanced Absorption and Diffusion Properties of Lithium on B,N,VC-decorated Graphene

Enhanced Absorption and Diffusion Properties of Lithium on B,N,VC-decorated Graphene

The Effect of Low-Temperature Carbon Encapsulation on Si Nanoparticles for Lithium Rechargeable Batteries

Nanostructured Si-Based Anodes for Lithium-Ion Batteries

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