Interconnected porous MnO nanoflakes for high-performance lithium ion battery anodes

Li, Xiuwan; Li, Dan; Qiao, Li; Wang, Xinghui; Sun, Xiaolei; Wang, Peng; He, Dawei

doi:10.1039/c2jm30604b

Cited by 177 publications

(112 citation statements)

References 24 publications

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“…A similar trend was also observed for other metal oxide electrodes but with a much smaller increment than the current observation [39,43]. Although the exact mechanism of such increment still remains unclear, we attributed it to the enhanced conversion reaction of MnO 2 nanoflowers experienced on the electrode.…”

Section: Cycling Stabilitysupporting

confidence: 59%

Core-leaf onion-like carbon/MnO2 hybrid nano-urchins for rechargeable lithium-ion batteries

Wang

Han

et al. 2013

Carbon

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A hybrid nano-urchin structure consisting of spherical onion-like carbon and MnO2 nanosheets is synthesized by a facile and environmentally-friendly hydrothermal method. Lithium-ion batteries incorporating the hybrid nano-urchin anode exhibit reversible lithium storage with superior specific capacity, enhanced rate capability, stable cycling performance, and nearly 100% Coulombic efficiency. These results demonstrate the effectiveness of designing hybrid nano-architectures with uniform and isotropic structure, high loading of electrochemically-active materials, and good conductivity for the dramatic improvement of lithium storage. Disciplines Engineering | Physical Sciences and Mathematics Publication DetailsWang, Y., Han, Z., Yu, S., Song, R., Song, H., Ostrikov, K. & Yang, H. (2013). Core-leaf onion-like carbon/ MnO2 hybrid nano-urchins for rechargeable lithium-ion batteries. Carbon, 64 (November), [230][231][232][233][234][235][236] This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. IntroductionDeveloping high-performance rechargeable lithium-ion batteries (LIBs) is among the most promising solutions to address the drastic increase in global demand of energy [1]. LIBs were introduced to the market in the 1990s by Sony and soon attracted a strong research interest due to their high energy density, stability, and no memory effect, as compared to other alternatives [2]. However, commercial LIBs mostly use graphite as the anode material, which possesses a relatively low theoretical specific capacity of ~372 mAh g -1 . This low capacity severely hampers the wide usage of LIBs in the surging consumer electronic devices and the large-scale energy applications such as hybrid electric vehicles, renewable power plants, and load levelling [3][4][5]. To accommodate the high-level requirements of these advanced applications, it is imperative to explore new electrode materials and novel designs for higher energy density, lower cost, flexibility, non-toxicity, and better stability.The recent advances in nanotechnology have offered a promising route to tackle these challenges [6][7][8][9]. As compared to the bulk materials, nanostructured materials possess a large surface area with excellent electrical, optical, and mechanical properties. Nanomaterials can enhance the performance of LIBs through two approaches. The first one is by using lowdimensional carbon-based nanomaterials to provide more efficient lithiation and delithiation In this work we solve these problems by fabricating the hybrid nano-urchin structure consisting of onion-like carbon/MnO 2 (OLC/MnO 2 ) using a simple and environmentallybenign hydro...

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Section: Cycling Stabilitysupporting

confidence: 59%

Core-leaf onion-like carbon/MnO2 hybrid nano-urchins for rechargeable lithium-ion batteries

Wang

Han

et al. 2013

Carbon

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“…75-0626. 13 However, it can be seen that the diffraction peaks are not sharp in the MnO-500 and MnO-600 samples. When the annealing temperature was increased to 700 C and above, the two samples have obviously sharp diffraction peaks, especially the MnO-800 sample.…”

Section: Resultsmentioning

confidence: 98%

“…[12][13][14] Nevertheless, just like the other pure M x O y anodes, MnO also suffers from inherent low electric conductivity and dramatic volume changes during lithium cycling, which constitutes the major obstacle for its practical applications in LIBs.…”

Section: Introductionmentioning

confidence: 99%

Preparation of novel two-stage structure MnO micrometer particles as lithium-ion battery anode materials

Pei

Lyu

et al. 2018

RSC Adv.

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“…Many strategies have been adopted to overcome these shortcomings, such as downsizing the particle size [14,15], designing new morphologies [16,17], doping [18][19][20][21][22], carbon coating [23][24][25][26][27], and constructing hollow or porous structures [28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Fast Preparation of Porous MnO/C Microspheres as Anode Materials for Lithium-Ion Batteries

Hao

Gong

et al. 2017

Preprint

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Porous MnO/C microspheres have been successfully fabricated by a fast co-precipitation method in a T-shaped microchannel reactor. The structures, compositions and electrochemical performances of the obtained MnO/C microspheres are characterized by X-ray diffraction, emission scanning electron microscopy, transmission electron microscopy (HRTEM), Brunauer-Emmett-Teller analysis, charge-discharge testing, cyclic voltammograms, and electrochemical impedance spectra. after cycling 50 times at 1 C and capacities of 808.3, 743.7, 642.6, 450.1, at 0.2, 0.5, 1, 2, and 0.2 C, respectively. Moreover, the controlled method of using a micro-channel reactor, which can produce larger specific surface area porous MnO/C with improved cycling performance by shortening lithium-ion diffusion distances, can be easily applied in real production on a large-scale.

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Interconnected porous MnO nanoflakes for high-performance lithium ion battery anodes

Cited by 177 publications

References 24 publications

Core-leaf onion-like carbon/MnO2 hybrid nano-urchins for rechargeable lithium-ion batteries

Core-leaf onion-like carbon/MnO2 hybrid nano-urchins for rechargeable lithium-ion batteries

Preparation of novel two-stage structure MnO micrometer particles as lithium-ion battery anode materials

Fast Preparation of Porous MnO/C Microspheres as Anode Materials for Lithium-Ion Batteries

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