Nitrogen-doped porous carbon was prepared from peony shell for the cathode material of lithium‑sulfur battery

Yang, Kunpeng; Yan, Junjun; He, Ruyi; Li, Da; Li, Yu; Li, Tao; Ren, Baozeng

doi:10.1016/j.jelechem.2020.113922

Cited by 26 publications

(9 citation statements)

References 36 publications

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“…In addition, it improves the electrical conductivity and surface wettability for fast reaction kinetics. [182,183] To understand the nitrogen doping affecting the discharge capacity, Geng et al studied the effect of nitrogen doping in porous carbon with similar specific surface area derived from corncob. [87] Notably, the composite with nitrogen doping shows 3.5 times improved cycling performance when compared to the undoped sample.…”

Section: Li-s Batterymentioning

confidence: 99%

Recent Progress in Synthesis and Application of Biomass‐Based Hybrid Electrodes for Rechargeable Batteries

Baskar

Singh

Ruban

et al. 2022

Adv Funct Materials

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The rapid growth in electronic and portable devices demands safe, durable, light weight, low cost, high energy, and power density electrode materials for rechargeable batteries. In this context, biomass-based materials and their hybrids are extensively used for energy generation research, which is primarily due to their properties such as large specific surface area, fast ion/ electron kinetics, restricted volume expansion, and restrained shuttle effect. In this review, the key advancements in the preparation of biomass derived porous carbons using different synthesis strategies and their modifications with species such as heteroatoms, metal oxides, metal sulfides, silicon, and other carbon forms are discussed. The electrochemical performances of these materials and the ion storage mechanisms in different batteries including lithium-ion, lithium-sulfur, sodium-ion, and potassium-ion batteries are discussed. Special attention will be paid to the challenges in using porous biomass-derived carbons and the current strategies employed for maximizing the specific capacity and lifetime for battery applications. Finally, the drawbacks in current technology and endeavors for the future research and development in the field to catapult the performances of the biomass derived materials in order to equip them to meet the demands of commercialization are highlighted.

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Section: Li-s Batterymentioning

confidence: 99%

Recent Progress in Synthesis and Application of Biomass‐Based Hybrid Electrodes for Rechargeable Batteries

Baskar

Singh

Ruban

et al. 2022

Adv Funct Materials

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“…[5][6][7][8] The porous carbon possessed superiority of electrical conductivity and specific surface area became a good carrier of sulfur. [9][10][11][12] The fabrication of traditional carbon is rather complex as well as costly. Biomass porous carbon has been the current researchs' focus due to its low cost of raw materials, large amount and easy availability, short synthesis cycle and environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

“…The porous carbon possessed superiority of electrical conductivity and specific surface area became a good carrier of sulfur 9‐12 . The fabrication of traditional carbon is rather complex as well as costly.…”

Section: Introductionmentioning

confidence: 99%

Cicada wing‐like hierarchical porous carbon to facilitate the re‐deposition of sulfur for high‐performance lithium‐sulfur batteries

Yang

Fan

et al. 2022

Intl J of Energy Research

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Summary The poor electrical conductivity of elemental sulfur ultimately results in poorer cycle performance, restricting the marketization of lithium‐sulfur (Li‐S) batteries. Herein, a cicada wing‐like bio‐derived hierarchical porous carbon (BHPC) derived from economical and common oats was prepared and optimized to facilitate the re‐deposition of sulfur in the electrochemical reversible process. Due to the remarkable cicada wing‐like thin layer structure and instinctively three‐stage nested pores with aperture distribution of micropores, mesopores, and macropores as 35.12%, 27.67%, and 37.21% respectively, the BHPC‐4 can mainly provide good conductive network and lots of reactive sites to increase the electro‐reaction contact area as well as the effective utilization of sulfur. The bio‐derived carbon goes a step further to facilitate the re‐uniform distribution of active substances during the cycling and repress the “Shuttling Effect”. The initial discharge specific capacity at 0.1 C is 1554 mA h/g for BHPC‐4/S. Furthermore, the BHPC‐4/S cathode displayed a capacity decay of 0.096% and above 95% of the Coulombic efficiency over 500 cycles at 0.5 C and supported a terrific cycling stability. Novelty Statement This work investigates BHPC/S employed as cathode for Li‐S batteries. Series of bio‐derived hierarchical porous carbon (BHPC) were prepared by high‐temperature activation carbonization method with low‐cost oatmeal as biomass precursor material, KOH as the activator. The SEM images reflect the effect of activator dosage on the morphology of BHPC samples. Among them, the BHPC‐4 prepared under optimal conditions displays a three‐stage network pore structure with cicada wing‐like thin layer. The results of BET reveal that the specific surface area of BHPC‐4 is 1531.7 m2/g and the proportions of three kinds of pores in BHPC‐4 are 35.12%, 27.67%, 37.21%, respectively. The TEM image further proves the cicada wing‐like thin layer structure of BHPC‐4, which can provide vast number of active reaction sites and supply a large conductive network. The three‐stage network pore structure can accelerate the diffusion and adsorption of electrons and ions, effectively inhibit the dissolution and the “Shuttle Effect” of polysulfide, therefore enhance the utilization of active substance. The lithium polysulfide static adsorption test and UV‐vis absorption spectra imply BHPC‐4 can capture polysulfide effectively. Besides, the special structure of BHPC‐4 can facilitate the re‐uniform distribution of active substance during the cycling. So, the BHPC‐4/S electrode exhibits a high initial capacity of 1554 mA h/g at 0.1 C. Furthermore, after 500 ultra‐long cycles at 0.5 C, the BHPC‐4/S remained at 250 mA h/g and the average damping rate is 0.096%/per cycle. The Coulombic efficiency is stable over 95% during cycles. Moreover, it presents a superior rate capability and lower interfacial transfer resistance of 154.6 Ω.

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“…To solve these problems, a large number of experimental studies have been conducted, and the results confirm that the porous carbon material-based sulfur hosts are more conducive to the release of high battery capacity. − Moreover, the rich pore structure can serve as physical confinement to the diffusion of polysulfide to improve the lifespan of batteries. − To further strengthen the restriction of polysulfide and accelerate its conversion, polar foreign components like heteroatoms and metallic compounds have been introduced to exert additional and strong chemical interaction. − For example, Chen et al reported the synthesis of N, B, and S tridoped carbon nanotubes by KOH activation at 850 °C/1 h and hydrothermal doping (180 °C/24 h) processes. The resultant cathode material showed a high incipient capacity of 1166 mA h g –1 and more endurable cycling stability .…”

Section: Introductionmentioning

confidence: 99%

Self-Assembled Bipolar Metals with Hollow Carbon Spheres for High-Performance Li–S Battery Cathodes

Long

Zhao

et al. 2021

ACS Appl. Energy Mater.

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The shuttling effect and sluggish redox kinetics of polysulfides are the main obstacles that restrict the practical application of lithium−sulfur (Li−S) batteries. Herein, in this work, cathode material embedded with bipolar metals Ti and Co prepared by a facile self-assembly process using hollow carbon nanospheres (HCSs), MXene nanosheets, and CoO(OH) has been reported. Due to the strong chemical adsorption and high catalytic activity introduced by the bipolar metal related active sites, the Li−S battery with the HCS@Co−MXene/S cathode shows the lowest charge transfer resistance and the best rate capability compared with HCS/S and HCS@MXene/S cathodes. Moreover, the battery delivers a high initial discharge capacity of 1309 mA h g −1 , which maintains at 570 mA h g −1 after 300 cycles at 0.5 C. Even at an elevated discharge current of 1 C, the battery retains a reversible capacity of 728 mA h g −1 over 120 cycles. Therefore, with the embedding of bipolar metals, the current Li−S battery cathode demonstrates superior cycling stability than the reference cathodes. The findings in this work exhibit a promising prospect for facile assembling of the high-performance Li−S battery cathode and the resultant device.

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Nitrogen-doped porous carbon was prepared from peony shell for the cathode material of lithium‑sulfur battery

Cited by 26 publications

References 36 publications

Recent Progress in Synthesis and Application of Biomass‐Based Hybrid Electrodes for Rechargeable Batteries

Recent Progress in Synthesis and Application of Biomass‐Based Hybrid Electrodes for Rechargeable Batteries

Cicada wing‐like hierarchical porous carbon to facilitate the re‐deposition of sulfur for high‐performance lithium‐sulfur batteries

Self-Assembled Bipolar Metals with Hollow Carbon Spheres for High-Performance Li–S Battery Cathodes

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