Lithium Storage in Ordered Mesoporous Carbon (CMK‐3) with High Reversible Specific Energy Capacity and Good Cycling Performance

Zhou, Haoshen; Zhu, Shenmin; Hibino, Mitsuhiro; Honma, Itaru; Ichihara, Masaki

doi:10.1002/adma.200306125

Cited by 580 publications

(409 citation statements)

References 30 publications

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“…The third cycle efficiency is 89% and, thereafter, remains above 97% up to 20 cycles. The average capacity loss "c" over a period of "n" number of cycles can be calculated as 12,13 where C n and C 1 are the specific capacities in the n th and first cycles, respectively. The average capacity loss in 20 cycles for the CMTs during the charge process is 1.3%, which is one of the lowest in carbon-based electrodes.…”

Section: Resultsmentioning

confidence: 99%

“…Hard carbons 4,5 and disordered carbons, 6 on the other hand, show a higher theoretical capacity than graphite of up to LiC 2 , due to the turbostatic disorder in the graphene sheets, but have a limited rate capability. To overcome these problems, single-walled and multi-walled carbon nanotubes (SWCNTs and MWCNTs), [7][8][9] carbon nanofibers (CNFs), 10 and porous carbon materials 11,12 have been studied as possible anode materials for Li-ion batteries. Their nanoscale dimensions provide a higher surface area-to-volume ratio, allowing higher Li ion intercalation, thus increasing the material specific capacity.…”

Section: Introductionmentioning

confidence: 99%

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Thin-Walled Carbon Microtubes as High-Capacity and High-Rate Anodes in Lithium-Ion Batteries

et al. 2010

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In this article, we present a large-area synthesis of carbon microtubes (CMTs) with internal diameters of ∼1.5 µm and wall thicknesses on the order of 50 nm and their lithium ion intercalation and deintercalation properties for the first time. The results show that CMTs exhibit a good capacity retention of 443 mAh g -1 after 20 cycles, higher than the theoretical capacity of graphite and ∼1.5 times higher than the capacity of multi-walled carbon nanotubes at similar conditions. The high capacity retention is attributed mostly to the presence of nanodomains of graphite in the thin walls of the microtubes providing multiple pathways for lithium ion intercalation and the open ends of the CMTs providing additional surface area for intercalation. The CMTs show good rate capability with a capacity retention of 135 mAh g -1 at a current density of 1.5 A g -1

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thin-Walled Carbon Microtubes as High-Capacity and High-Rate Anodes in Lithium-Ion Batteries

et al. 2010

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“…5,[35][36][37][38] As demonstrated by Zhou et al 39 large and ordered pore arrays are very beneficial to the intercalation of lithium, which is known as a slow bulk-phase reaction. The hierarchical structure of our Fe/Fe 3 O 4 /N-carbon composite is readily accessed by the electrolyte solution, that is Li + ions can freely move into large pores and intercalate into the thin pore walls and the N-loading location.…”

Section: Resultsmentioning

confidence: 99%

A Fe/Fe₃O₄/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries

Meng

Zhu

et al. 2015

Dalton Trans.

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2015). A Fe/Fe3O4/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries. Dalton Transactions: an international journal of inorganic chemistry, 44 (10), 4594-4600. A Fe/Fe3O4/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries AbstractFe/Fe3O4/N-carbon composite consisting of a porous carbon matrix containing a highly conductive Ndoped graphene-like network and Fe/Fe3O4 nanoparticles was prepared. The porous carbon has a hierarchical structure which is inherited from rice husk and the N-doped graphene-like network formed in situ. When used as an anode material for lithium batteries, the composite delivered a reversible capacity of approximately 610 mA h g(-1) at a current density of 200 mA g(-1) even after 100 cycles, due to the synergism between the unique hierarchical porous structures, highly electrically conductive N-doped graphene-like networks and nanosized particles of Fe/Fe3O4. This work provides a simple approach to prepare N-doped porous carbon activated nanoparticle composites which could be used to improve the electrochemical performance of lithium ion batteries. hierarchical structure which is inherited from rice husk and the N-doped graphene-like network formed in situ. When used as an anode material for lithium batteries, the composite delivered a reversible capacity of approximately 610 mA h g −1 at a current density of 200 mA g −1 even after 100 cycles, due to the synergism between the unique hierarchical porous structures, highly electrically conductive N-doped graphene-like networks and nanosized particles of Fe/Fe 3 O 4 . This work provides a simple approach to prepare N-doped porous carbon activated nanoparticle composites which could be used to improve the electrochemical performance of lithium ion batteries.

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“…In addition, the initial efficiency (IE) of OMC anodes remained almost constant (approximately 30%) irrespective of the OMC preparation methods. 2,13,14 The IE of our TM materials (45-57%) was higher than the pure OMC, which should be related with the embedded MoO 2 nanophases. As listed in Table 1, increase of IE was attributed to decrease of surface area and increase of MoO 2 fraction because electrolyte decomposition on carbon surface can be major irreversible reaction during initial charging.…”

Section: 1mentioning

confidence: 99%

“…13,14 As listed in Table 1, the discharge capacity (C dis ) of TM-0.5, 1, 2 and 3 electrodes was 581, 512, 514 and 571 mAh g ). For TM-1 and 2 anodes, decrease of C dis was probably due to co-effect originated from reduction of Li + storage sites within carbon induced by the surface area decrease and capacity rise in TM-3 was attributed to MoO 2 fraction increase.…”

Section: 1mentioning

confidence: 99%

Ordered Mesoporous Carbon-MoO₂Nanocomposite as High Performance Anode Material in Lithium Ion Batteries

Zhou¹,

Lee²,

Lee³

et al. 2014

Bulletin of the Korean Chemical Society

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Recently, many efforts have been made in order to develop advanced anode materials in lithium ion batteries (LIBs). Particularly, transition-metal oxides, such as TiO 2 , Fe 2 O 3 , CoO and WO 3-x , have been intensively investigated as promising anode candidates for LIBs. It has been reported that such materials have the merits as anodes in LIB, such as cheap material cost, high capacity and high material density. 1Because of intrinsically low electric conductivity of these metal oxides, however, nanocomposite formation with carbon has been tried in order to provide better electrical pathway through carbon phase. 2,17,19,20 Especially, nanocomposites between transient metal oxides and ordered mesoporous carbon (OMC) have become more attractive due to their beneficial characteristics: i) abundant lithium storage sites and fast lithium diffusion in nanosized metal oxides and OMC; ii) facile electrolyte penetration owing to ordered mesopores iii) higher electric conductivity through carbon framework. 2,17,19,20 As a novel metal-oxide anode candidate, molybdenum oxides (MoO x , x = 2-3), which possess a theoretical specific capacity of 840-1100 mAh g -1 based on the mechanism of conversion reaction, have attracted considerable interest as anode material materials in LIBs.3,4 However, it has been elucidated that in bulk MoO x electrodes, only addition-type lithium storage reaction happens rather than conversion reaction, which leads to quite limited specific capacity and their intrinsically low electric and ionic conductivity retards their rate performance.4,5 Accordingly, nanostructured MoO x anodes of various forms (nanobelts, nanorods and nanoporous structures) have been prepared and great improvement has been observed. [4][5][6] Particularly, the ordered mesoporous MoO 2 templated from the KIT-6 silica has been reported, which exhibited largely enhanced anode performance. 5 Nevertheless, the employed preparation was based on the high-cost and environmentally unfriendly hard templating method, which required multi-step procedures including the hazardous hydrofluoric acid etching. Furthermore, a mesoporous carbon-MoO 2 nanocomposite has been recently prepared by the traditional post-addition method.7 Although better electrochemical performance was observed, this preparative method was still tedious and more importantly, the post-added metal precursors were difficult to be localized in the inner pores during a high-temperature calcination, which resulted in crystal aggregation and relatively inhomogeneous dispersion of MoO 2 within the OMC matrix.7 Triconstituent co-assembly, which utilizes the strong molecular interaction between carbon precursor, inorganic precursor and surfactants, has been recognized as an attractive strategy to prepare the OMC/various transient metal oxide composites within one step. 8 In our previous work, triconstituent co-assembly method has been successfully employed to prepare OMC/MoO 2 nanocomposite, namely triconstituent ordered mesoporous carbon-MoO 2 nanocomposites

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Lithium Storage in Ordered Mesoporous Carbon (CMK‐3) with High Reversible Specific Energy Capacity and Good Cycling Performance

Cited by 580 publications

References 30 publications

Thin-Walled Carbon Microtubes as High-Capacity and High-Rate Anodes in Lithium-Ion Batteries

Thin-Walled Carbon Microtubes as High-Capacity and High-Rate Anodes in Lithium-Ion Batteries

A Fe/Fe₃O₄/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries

Ordered Mesoporous Carbon-MoO₂Nanocomposite as High Performance Anode Material in Lithium Ion Batteries

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Lithium Storage in Ordered Mesoporous Carbon (CMK‐3) with High Reversible Specific Energy Capacity and Good Cycling Performance

Cited by 580 publications

References 30 publications

Thin-Walled Carbon Microtubes as High-Capacity and High-Rate Anodes in Lithium-Ion Batteries

Thin-Walled Carbon Microtubes as High-Capacity and High-Rate Anodes in Lithium-Ion Batteries

A Fe/Fe3O4/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries

Ordered Mesoporous Carbon-MoO2Nanocomposite as High Performance Anode Material in Lithium Ion Batteries

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A Fe/Fe₃O₄/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries

Ordered Mesoporous Carbon-MoO₂Nanocomposite as High Performance Anode Material in Lithium Ion Batteries