Hybrid nanostructured microporous carbon-mesoporous carbon doped titanium dioxide/sulfur composite positive electrode materials for rechargeable lithium-sulfur batteries

Zegeye, Tilahun Awoke; Kuo, Chung‐Feng Jeffrey; Wotango, Aselefech Sorsa; Pan, Chun‐Jern; Chen, Hung-Ming; Haregewoin, Abebe; Cheng, Ju‐Hsiang; Su, Wei‐Nien; Hwang, Bing‐Joe

doi:10.1016/j.jpowsour.2016.05.080

Cited by 58 publications

(47 citation statements)

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“…Due to the insulating nature of both TiO 2 and sulfur, combining conductive carbon with TiO 2 -S composites to further improve the electrochemical performances is becoming increasingly favorable by the researchers. [54][55][56][57][58][59][60][61][62][63][64][65][66][67][68] Zhang's group developed a titanium dioxide anchored on hollow carbon nanofiber hybrid nanostructure (HCNF@TiO 2 -S). 66 The HCNF@TiO 2 -S composite exhibited much better electrochemical performance than the HCNF-S composite, which delivered an initial discharge capacity of 1040 mA h/g and maintained 650 mA h/g after 200 cycles at a 0.5 C rate.…”

Section: Nanostructured Metal Oxides Application In Li-s Batteriesmentioning

confidence: 99%

“…Tilahun and his co-workers designed hybrid nanostructured microporous carbon-mesoporous carbon doped titanium dioxide/sulfur composite (MC-meso C-doped TiO 2 /S). 57 The incorporation of microporous carbon can effectively increase the electrical conductivity of the material by decreasing the resistance of sulfur which results in enhanced active material utilization. Simultaneously, mesoporous C-doped TiO 2 nanotubes prevents the dissolution of polysulfide, and also improves the strength of the entire electrode, thereby enhancing the electrochemical performance.…”

Section: Nanostructured Metal Oxides Application In Li-s Batteriesmentioning

confidence: 99%

“…Finally, the nanostructures of metal compounds, i.e., surface area, pore size, pore volume, as well as particle size are also important factors which influence the performance of Li-S batteries. 19 Generally the metal compounds with smaller size, 69 high surface area and pore volume, 98 and abundant micro/mesopores 49,57 are beneficial to the cathode. Even though tremendous progress in improving the electrochemical performance and understanding the reaction mechanisms of Li-S batteries have been achieved, Li-S batteries are far from being ready for practical use at this stage.…”

Section: Summary and Perspectivementioning

confidence: 99%

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Recent development of metal compound applications in lithium–sulphur batteries

Lai

2017

J. Mater. Res.

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Lithium-sulphur (Li-S) batteries are one of the most promising candidates for the next generation of energy storage systems to alleviate the energy crisis. However, Li-S batteries' commercialization faces the challenges of low active materials utilization, poor cycling life, and low energy density. Recently, tremendous progress has been achieved in improving the electrode performances and tap density by using the nanostructured metal compounds in Li-S batteries. In this review, we not only present the latest various nanostructured metal compounds applications in Li-S batteries, including metal oxides, metal sulphides, metal carbides, metal nitrides, and metal organic frameworks, but also we focus on the interaction mechanisms between these polar metal compounds with polysulphides. The issues and bottlenecks of these metal compounds are concluded and the corresponding available solutions to address these issues are proposed. This systematic discussion and proposed strategies can offer avenues to the practical application of Li-S batteries in the near future.

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Section: Nanostructured Metal Oxides Application In Li-s Batteriesmentioning

confidence: 99%

Section: Nanostructured Metal Oxides Application In Li-s Batteriesmentioning

confidence: 99%

Section: Summary and Perspectivementioning

confidence: 99%

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Recent development of metal compound applications in lithium–sulphur batteries

Lai

2017

J. Mater. Res.

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“…Nowadays, the main anode materials for LIBs include carbons materials [8][9][10][11] (which are also used in other field), [12][13][14] metal oxide, [15][16][17] metal sulfide (MSx), etc. [18][19][20][21][22] SnS 2 is considered as a potential anode because of low toxicity, inexpensive, and theoretical excellent capacity (1231 mAh g À 1 ).…”

Section: Introductionmentioning

confidence: 99%

Three‐Dimensional SnS₂ Nanoarrays with Enhanced Lithium‐Ion Storage Properties

et al. 2020

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Three-dimensional (3D) SnS 2 nanoarrays were obtained by oriented-growth of nanosheets on 3D porous carbon substrates derived from Co-based zeolitic imidazolate framework, ZIF-67. With the structure advantages of shortened ion diffusion length, high stress relief volume and enhanced conductivity, the 3D SnS 2 nanoarrays display favorable lithium-ion storage properties, possessing a high reversible capacity (658 mAh g À 1 at 100 mA g À 1 , after 100 cycles) and outstanding rate property (651 mAh g À 1 at 3 A g À 1). This strategy paves a method for designing other 3D metal sulfides nanoarrays for energy storage application.

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“…There is also a semicircle in the higher-frequency region, corresponding to the deposit diffusion resistance of the SEI lm (R g ). 36 R ct decreased aer 50 cycles for the HCOS-S cell, indicating that the HCOS-S composite exhibits the high sulfur utilization and little shuttle phenomenon. This phenomenon results from the good combination between the active S-containing species and the HCOS host during cycling and the enhanced conductivity, which is benecial to the electrochemical reaction activity.…”

mentioning

confidence: 97%