Optimized sulfur-loading in nitrogen-doped porous carbon for high-capacity cathode of lithium–sulfur batteries

Leng, Songming; Chen, Cheng; Liu, Jiahao; Wang, Sizhe; Yang, Jian; Shan, Shuang; Gong, Feng; Guo, Y. P.; Wu, Mengqiang

doi:10.1016/j.apsusc.2019.05.206

Cited by 29 publications

(8 citation statements)

References 67 publications

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“…[37] Additionally, the weak peak at 169.08 eV indicates the presence of sulphate species. Three peaks at around 284.53, 285.23 and 286.33 eV were separated from the C 1s spectrum in Figure 4d, representing CÀ C/C=C, [38] CÀ N/ CÀ S, [39] and C=O [40] species, respectively. Figure 4e shows high-resolution O 1s spectrum of a peak at 532.53 eV, corresponding to C=O bonds.…”

Section: Resultsmentioning

confidence: 99%

In Situ Nitrogen‐Doping Carbon Aerogel as an Effective Sulfur Host to Immobilize Polysulfides for High Performance Lithium‐Sulfur Battery

Gao

et al. 2020

ChemistrySelect

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In‐situ high content N‐doping carbon aerogel (NCA) is successfully prepared via low‐cost m‐phenylenediamine and formaldehyde reaction through the facile sol‐gel method and further high‐temperature carbonization process. NCA material with nanospheres presents the characteristics of large specific surface area and high loading sulfur owing to the specific cross‐linked framework structure. In addition, the NCA/S cathode with high content of nitrogen can achieve strong adsorption to lithium polysulfides (LiPSs) due to its inherent N active sites, and presents outstanding electrochemical performance. In details, the designed NCA/S electrode demonstrates the first discharge capacity of 1247 mAh g−1 at 0.2 C. Moreover, the NCA/S battery also displays excellent electrochemical stability with low capacity attenuation rate of 0.083 % per cycle within 300 cycles at 0.5 C. The remarkable electrochemical properties are mainly ascribed to intense adsorption of evenly‐distributed nitrogen in the carbon material, effectively preventing polysulfide (PS) escaping from host material, restraining shuttle effect and increasing sulfur utilization.

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Section: Resultsmentioning

confidence: 99%

In Situ Nitrogen‐Doping Carbon Aerogel as an Effective Sulfur Host to Immobilize Polysulfides for High Performance Lithium‐Sulfur Battery

Gao

et al. 2020

ChemistrySelect

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“…As the carbonization temperature increases, the nitrogen atom content decreases. In addition, the nitrogen‐doped cathode materials prepared by post‐treatment with chemical reagents is only doped with one layer on the surface, and the nitrogen content is significantly lower than the overall doping obtained by carbonizing nitrogen‐containing biomass [38] . Among nitrogen atoms, pyrrole nitrogen and pyridine nitrogen atoms play extremely important roles in the adsorption of soluble polysulfide [39] .…”

Section: Bio‐derived Carbon/sulfur Composite Cathodesmentioning

confidence: 99%

Working Mechanisms and Structure Engineering of Renewable Biomass‐Derived Materials for Advanced Lithium‐Sulfur Batteries: A Review

et al. 2021

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Lithium‐sulfur (Li−S) batteries have attracted attention in the field of energy storage due to their high energy density and theoretical capacity. However, there are still some obstacles to achieve commercial applications such as large volume expansion of sulfur, low electrical conductivity, the growth of lithium dendrites, and the polysulfide shuttle effect. Through continuous research on Li−S batteries, renewable biomass materials have been discovered by scholars and scientists due to their sustainable development, low cost, and extensive sources. The results showed that renewable biomass‐derived carbons had outstanding advantages such as high specific surface area and large pore volume, as well as inherent heteroatom doping after being applied to Li−S batteries, which had a significant effect on improving the electrochemical performance. This Review summarizes the research progress of Li−S batteries in renewable biomass materials in recent years, starting from three aspects: biomass carbon‐sulfur composite cathodes, biomass modified separators, and biomass independent flexible carbon interlayers. Firstly, the Review summarizes its physical barrier and adsorption mechanism (the effect of various porous structures), chemical reaction and adsorption mechanism, catalysis and conversion mechanism. Then, it classifies materials based on the source of renewable biomass as well as elaborating and analyzing the structures, mechanism, and performance among them. Finally, the Review summarized the shortages in this field, as well as the challenges and opportunities faced. The authors hope that this Review will have a certain reference value for the development of various biomasses for high performance Li−S batteries, and will inspire more scholars to devote themselves to the research of biomass materials for Li−S batteries.

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“…For production of the porous carbons, biomass can become one candidate of the most possible precursors because it is cheap, high abundant, renewable, green and unique porous structures [16][17][18][19][20][21][22][23][24]. Various of biomass has been used as carbons precursors for for Li-S battery system such as avocado shells [25], snake-skin fruit peel [26], hickory shell [27], rapeseed meal [28], moss [29], dandelion [30], banana peel [31], fiber of fern [32], wheat straw [33], mangosteen peel [34], xanthoceras sorbifolia husks [35], goat hair [36], rice husks [37], pistachio shell [38], almond shell [39], waste mandarin peels [17], waste tea [40] and many others [41].…”

Section: Introductionmentioning

confidence: 99%

Rambutan peel derived porous carbons for lithium sulfur battery

et al. 2021

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Porous carbons were prepared from the biomass waste rambutan peels using hydrothermal carbonization followed by the KOH activation process. Rambutan peel derived porous carbons (RPC) with high surface area of 2104 m2 g−1 and large pore volume of 1.2 cm3 g−1 were obtained at KOH/carbon ratio of 4 and activation temperature of 900 °C. The as-obtained porous carbons were capable of encapsulating sulfur with a high loading of 68.2 wt% to form RPC/S composite cathode for lithium sulfur (Li–S) battery. High specific discharge capacities of about 1275 mAh g−1 were demonstrated by the RPC/S composites at 0.1 C. After 200 cycles at 0.1 C, a high specific capacity of 936 mAh g−1 was maintained, showing an excellent capacity retention of about 73%.

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Optimized sulfur-loading in nitrogen-doped porous carbon for high-capacity cathode of lithium–sulfur batteries

Cited by 29 publications

References 67 publications

In Situ Nitrogen‐Doping Carbon Aerogel as an Effective Sulfur Host to Immobilize Polysulfides for High Performance Lithium‐Sulfur Battery

In Situ Nitrogen‐Doping Carbon Aerogel as an Effective Sulfur Host to Immobilize Polysulfides for High Performance Lithium‐Sulfur Battery

Working Mechanisms and Structure Engineering of Renewable Biomass‐Derived Materials for Advanced Lithium‐Sulfur Batteries: A Review

Rambutan peel derived porous carbons for lithium sulfur battery

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