Understanding the improved electrochemical performance of nitrogen-doped hard carbons as an anode for sodium ion battery

Agrawal, Ashutosh; Janakiraman, S.; Biswas, Koushik; Venimadhav, A.; Srivastava, S. K.; Ghosh, Sudipto

doi:10.1016/j.electacta.2019.05.158

Cited by 81 publications

(44 citation statements)

References 53 publications

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“…A detailed description of these doped carbon materials and the structural changes leading to increased specific capacity can be found in refs. [ 24–27 ] and herein. Figure 3 presents the reversible specific capacity of the mentioned carbons versus their average oxidation voltage.…”

Section: Sodium Ion Batteries: Retrospective and Advancesmentioning

confidence: 99%

Na‐Ion Batteries—Approaching Old and New Challenges

Goikolea

Palomares

Wang

et al. 2020

Advanced Energy Materials

306

190

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are proving to be an emergent technology with potentially very attractive properties. They are potentially low cost and environmentally friendly with reduced supply risk. However, the development of NIBs faces various challenges such as low gravimetric and volumetric energy densities and difficulty in achieving broader voltage windows. Although early studies in NIBs date back to the 1970s, just like Li-ion battery (LIB) research, the commercialization of the former systems in 1991 by the team formed by Sony and Asahi Kasei marked a milestone not only in the field of energy storage technology but also in the evolution of the modern society. This technological breakthrough had been possible thanks to several preceding contributions, particularly the works by M. S Whittingham, [1] J. Goodenough, [2,3] and A. Yoshino [4] on the discovery of Li-ion intercalation materials (Nobel Laureates in Chemistry 2019). This important historical event polarized material science research toward Li-ion technology and slowed down considerably the advances in the field of sodium. However, at the end of the 2000s, mainly driven by the concerns about future lithium supply and the uneven worldwide distribution of its reserves and resources, the research on Na-ion reemerged and so did the number of articles published (Figure 1). The intercalation chemistry of both metal ions is very alike, and thus, the materials tested for NIBs could be similar to those used in Li-ion systems. Both systems share the same working principle, and therefore, in terms of manufacturing, the industry producing LIBs can be easily tuned towards NIB fabrication, which is an important asset to invest in and support this technology. NIBs started to reach the market in the early 2010s, about two decades after their Li counterparts. Nevertheless, the progress has been relatively fast due to the straightforward LIB equipment and facility transfer just mentioned. In the search of high performance, low cost, abundance, low environmental impact, long-term cyclability and safety, layered metal oxides, polyanionic compounds and Prussian blue analogues (PBAs) are among the most studied families of Na-ion cathode materials. On the anode side, metallic sodium exhibits the same operation and safety problems as lithium, and therefore, it cannot be considered an option in conventional NIBs. Thus, in this scenario, most of the research has been dominated by the use of disordered carbons, mainly hard carbons (HCs). Other prospective anodes

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Section: Sodium Ion Batteries: Retrospective and Advancesmentioning

confidence: 99%

Na‐Ion Batteries—Approaching Old and New Challenges

Goikolea

Palomares

Wang

et al. 2020

Advanced Energy Materials

306

190

View full text Add to dashboard Cite

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“…5c), the coordinating energy (E coord ) of N-5 (À6.45 eV) and N-6 (À9.26 eV) are higher than N-Q (À4.33 eV), indicating that the edge-nitrogen (N-5 and N-6) are energetically more favorable for Na + storage [72,73]. As a result, the electrical conductivity would be improved by N-doping, where the generated defects could provide active sites for Na + storage, and facilitate diffusion/transporta-tion, enhancing the pseudo-capacitance Na-storage capacity [72,74].…”

Section: Heteroatoms Dopingmentioning

confidence: 99%

The recent progress of pitch-based carbon anodes in sodium-ion batteries

Jiang

Sun

Soomro

et al. 2021

Journal of Energy Chemistry

118

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“…However, large SSA always tends to the excessive consumption of cathodes/electrolyte, resulting in low initial Coulombic efficiency or even reducing the energy density in full cell configurations . In addition, various morphology carbonaceous anodes such as hollow microsphere, nanospheres, nanosheets, nanorods, nanofibers, and graphene possess poor reversible capacities of no more than 300 mAh g −1 , which is far from meeting the requirements of advanced electric‐mobile‐devices. Hence, the attentions are gradually diverted to heteroatom doping owing to multiple heteroatom can effectively regulate the physicochemical properties of carbonaceous anodes, including electronegativity, electronic conductivity, and hydrophilicity .…”

Section: Introductionmentioning

confidence: 99%

Accurate Control Multiple Active Sites of Carbonaceous Anode for High Performance Sodium Storage: Insights into Capacitive Contribution Mechanism

Liang

et al. 2020

Advanced Energy Materials

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Heteroatom doping is widely recognized as an appealing strategy to break the capacitance limitation of carbonaceous materials toward sodium storage. However, the concrete effects, especially for heteroatomic phase transformation, during the sodium storage reaction remain a confusing topic. Here, a novel hypercrosslinked polymerization approach is demonstrated to fabricate pyrrole/thiophene hypercrosslinked microporous copolymer and further give porous carbonaceous materials with accurately regulated N/S dual doping corresponding to starting feeding ratios. Significantly, the N doping contributes to the conductivity and surface wettability, while the S doping is bridged to build stable active sites, which can be electrochemically converted into mercaptan anions via faraday reaction and further enhancing reversible capacities. Meanwhile, the abundant S doping can also conduce to the expanded interlayer spacing to shorten the ions diffusion distance, thus optimizing the reaction kinetic. As a result, the N0.2S0.8‐micro‐dominant porous carbon delivers the highest reversible capacity of 521 mAh g−1 at 100 mA g−1 and excellent cyclic stability over 2000 cycles at 2000 mA g−1 with a capacity decay of 0.0145 mAh g−1 per cycle. This work is anticipated to provide an in‐depth understanding of capacitance contribution and illuminate the heteroatomic phase transformation during sodium storage reactions for doping carbonaceous anodes.

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Understanding the improved electrochemical performance of nitrogen-doped hard carbons as an anode for sodium ion battery

Cited by 81 publications

References 53 publications

Na‐Ion Batteries—Approaching Old and New Challenges

Na‐Ion Batteries—Approaching Old and New Challenges

The recent progress of pitch-based carbon anodes in sodium-ion batteries

Accurate Control Multiple Active Sites of Carbonaceous Anode for High Performance Sodium Storage: Insights into Capacitive Contribution Mechanism

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