Investigation on porous MnO microsphere anode for lithium ion batteries

Zhong, Kaifu; Zhang, Bin; Luo, Shuangling; Wen, Wen; Li, Hong; Huang, Xuejie; Chen, Liquan

doi:10.1016/j.jpowsour.2010.10.031

Cited by 213 publications

(176 citation statements)

References 28 publications

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“…This can be ascribed to the content of metallic Co increasing with the cycling process. 50 The results further conrm that the metallic Co cannot be fully converted to CoS 2 , which is the origin of the irreversible capacity loss of the CoS 2 electrode material.…”

Section: 4748mentioning

confidence: 89%

Formation of graphene-encapsulated CoS₂ hybrid composites with hierarchical structures for high-performance lithium-ion batteries

et al. 2017

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Transition metal sulfides (TMSs) are considered as the most promising alternative anode materials for advanced lithium-ion batteries (LIBs). Here, we report a hierarchically structured CoS 2 nanosphere/graphene (CoS 2 /G) composite, fabricated by a simple hydrothermal method. This composite, assembled with CoS 2 nanoparticles uniformly distributed on the graphene, exhibits excellent electrochemical performance. In particular, the CoS 2 /G electrode material delivers a high rate capability of around 398 mA h g À1 at a current density of 3500 mA g À1. Moreover, a discharge capacity of about 400 mA h g À1 can be obtained after 1000 cycles at a current density of 500 mA g À1. X-ray absorption spectroscopy is used to characterize the sample for the first time, and the results demonstrate that CoS 2 /G is reduced to metallic Co and Li 2 S when discharged to 0.01 V. In subsequent charge-discharge processes, the metallic Co cannot be fully oxidized to CoS 2 , which is the main cause of capacity loss for the CoS 2 electrode.

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Section: 4748mentioning

confidence: 89%

Formation of graphene-encapsulated CoS₂ hybrid composites with hierarchical structures for high-performance lithium-ion batteries

et al. 2017

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“…When the annealing temperature was increased to 700 C and above, the two samples have obviously sharp diffraction peaks, especially the MnO-800 sample. We noticed that all the four samples have a small board peak (2q ¼ [20][21][22][23][24][25][26][27][28][29][30] that might indicate to a certain amount of carbon. 16 Meanwhile, we noticed that the SEM images of the MnO-500, MnO-600 and MnO-700 samples maintain typical fusiform shape just as the MnCO 3 precursor in Fig.…”

Section: Resultsmentioning

confidence: 91%

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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“…Porous MnO materials can be synthesized by templated or non-templated methods, such as co-precipitation [35], hydrothermal, solvothermal [36], sol-gel and deposition processes [37]. Among these synthesis method, The co-precipitation method is more simple than the above mentioned processes and is suitable for large-scale production in commercial fields.…”

Section: Introductionmentioning

confidence: 99%

“…Among these synthesis method, The co-precipitation method is more simple than the above mentioned processes and is suitable for large-scale production in commercial fields. Zhong et al [35] synthesized porous MnO/C microspheres which delivered a reversible capacity of 600 mAh·g -1 at a rate of 400 mA·g -1 . This porous MnO particles were obtained with MnCO 3 as the precursor through a co-precipitation method, and carbon was coated by chemical vapor deposition.…”

Section: Introductionmentioning

confidence: 99%

“…However, the particle size and distribution from the co-precipitation method always depend on the mass transfer and dispersion in the reactor. In traditional co-precipitation, solutions are mixed by stirring for several honrs [9,35], which is not easy to control the particle nucleation-growth processes. It is necessary to improve the micro-mixing intensity and mass transfer for the co-precipitation process.…”

Section: Introductionmentioning

confidence: 99%

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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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Investigation on porous MnO microsphere anode for lithium ion batteries

Cited by 213 publications

References 28 publications

Formation of graphene-encapsulated CoS₂ hybrid composites with hierarchical structures for high-performance lithium-ion batteries

Formation of graphene-encapsulated CoS₂ hybrid composites with hierarchical structures for high-performance 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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Investigation on porous MnO microsphere anode for lithium ion batteries

Cited by 213 publications

References 28 publications

Formation of graphene-encapsulated CoS2 hybrid composites with hierarchical structures for high-performance lithium-ion batteries

Formation of graphene-encapsulated CoS2 hybrid composites with hierarchical structures for high-performance 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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Formation of graphene-encapsulated CoS₂ hybrid composites with hierarchical structures for high-performance lithium-ion batteries

Formation of graphene-encapsulated CoS₂ hybrid composites with hierarchical structures for high-performance lithium-ion batteries