Carbon and Carbon Hybrid Materials as Anodes for Sodium‐Ion Batteries

Zhong, Xing; Wu, Ying; Zeng, Shuai; Yu, Yan

doi:10.1002/asia.201800132

Cited by 48 publications

(21 citation statements)

References 122 publications

(156 reference statements)

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“…Promising candidates for anode materials include various carbonaceous materials, metal/alloys, metal oxides, and metal sulfides . Among them, carbon materials have attracted considerable attention due to their high storage capacity for sodium, high electrical conductivity, abundant resources, excellent stability, and low cost . Great efforts have been devoted to tailoring the atomic construction and porosity of carbons which can contribute to sodium storage and promote rapid ion transport, thus facilitating the rate capability of the anodes.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Charge Storage Mechanism to Achieve High Capacity and Fast Ion Storage in Sodium‐Ion Capacitor Anodes by Using Electrospun Nitrogen‐Doped Carbon Fibers

Yan

Josef

Huang

et al. 2019

Adv Funct Materials

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Microporous nitrogen-rich carbon fibers (HAT-CNFs) are produced by electrospinning a mixture of hexaazatriphenylene-hexacarbonitrile (HAT-CN) and polyvinylpyrrolidone and subsequent thermal condensation. Bonding motives, electronic structure, content of nitrogen heteroatoms, porosity, and degree of carbon stacking can be controlled by the condensation temperature due to the use of the HAT-CN with predefined nitrogen binding motives. The HAT-CNFs show remarkable reversible capacities (395 mAh g −1 at 0.1 A g −1 ) and rate capabilities (106 mAh g −1 at 10 A g −1 ) as an anode material for sodium storage, resulting from the abundant heteroatoms, enhanced electrical conductivity, and rapid charge carrier transport in the nanoporous structure of the 1D fibers. HAT-CNFs also serve as a series of model compounds for the investigation of the contribution of sodium storage by intercalation and reversible binding on nitrogen sites at different rates. There is an increasing contribution of intercalation to the charge storage with increasing condensation temperature which becomes less active at high rates. A hybrid sodium-ion capacitor full cell combining HAT-CNF as the anode and salt-templated porous carbon as the cathode provides remarkable performance in the voltage range of 0.5-4.0 V (95 Wh kg −1 at 0.19 kW kg −1 and 18 Wh kg −1 at 13 kW kg −1 ).

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Section: Introductionmentioning

confidence: 99%

Understanding the Charge Storage Mechanism to Achieve High Capacity and Fast Ion Storage in Sodium‐Ion Capacitor Anodes by Using Electrospun Nitrogen‐Doped Carbon Fibers

Yan

Josef

Huang

et al. 2019

Adv Funct Materials

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“…Specifically, in each scanning loop, a sharp reduction peak and an obvious oxidation peak located around 0.01 and 0.2 V, respectively, are related to Na ions intercalated in graphitic carbon layers of HC-SC composite and it is a reversible process. [42] Furthermore, two redox peaks at between 0.2 and 2.5 V are connected with the occurrence of Na ions ad/ desorption at defects. [43] The galvanostatic charge-discharge curves of electrode materials shown in Figure 4b, exhibit two distinct regions, the sloping region and plateau region.…”

Section: Resultsmentioning

confidence: 99%

A Promising Hard Carbon−Soft Carbon Composite Anode with Boosting Sodium Storage Performance

Xue

Gao

et al. 2020

ChemElectroChem

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Hard carbon anodes are the most promising candidates for sodium-ion batteries due to lower sodium-embedded platform and higher specific capacity. However, pure hard carbon carbons usually show very low initial coulombic efficiency, low electronic conductance, et al. Herein, hard carbon-soft carbon (HC-SC) composites composed of carbon nanotubes (CNTs) blooming on porous hard carbon, which were synthesized through thermal decomposition of zeolitic imidazolate framework-67 (ZIF-67) and polyvinyl alcohol (PVA) composite. This unique structure could greatly promote the sodium-ion diffusion and electron transport due to the increased electrode/ electrolyte contact area and enlarged pores. As expected, the HC-SC delivers a high capacity (306.8 mAh g À 1 at 500 mA g À 1), impressive cycling stability (256.8 mAh g À 1 after 1000 cycles) and enhanced rate performance (144.9 mAh g À 1 at 20 C), which are far superior to those of both individual hard carbon and soft carbon. This encouraging performance may benefit from the synergistic effect of the modified defect concentration and interlayer distance in hard carbon by soft carbon, as well as the unique hierarchical structure. This work provides an exemplary strategy to develop optimized carbon materials for sodium-ion batteries.

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“…The success of graphite in LIBs cannot be duplicated for SIBs as the size variation of Na + has made the intercalation reaction kinetically unfavorable . Hard carbon, as an alternative carbon‐based anode, surprised us with its ability to store energy by surface absorption of the alkali ions onto the nanoscopic pores but there is no ground breakthrough for SIBs because the technology is still held back by low energy density.…”

Section: Storage Mechanisms Of Sib Anodesmentioning

confidence: 99%

Peering into Alloy Anodes for Sodium‐Ion Batteries: Current Trends, Challenges, and Opportunities

Tan

Dong

Rui

et al. 2019

Adv Funct Materials

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257

143

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Sodium-ion batteries (SIBs) are regarded as a complementary technology to lithium-ion batteries (LIBs) in the effort of searching for alternative energy solutions that are cost-effective and sustainable. The identification of suitable alternative anode materials is essential to close the gap in energy density between SIBs and LIBs. Solid-state alloying reactions that work beyond intercalation mechanism are able to provide a significant improvement in specific capacity. This review describes key advances in SIBs with a primary emphasis on alloy anodes. Recent information and results published in the literatures are stressed to provide an overview of their development in SIBs. With the discussion of some of the remaining challenges and possible solutions, the authors hope to sketch out the scope for future studies in this field. Volume expansion a) [%]Average voltage (vs Na + /Na) [V] SnNa 15 Sn 4 847 420 [17] ≈0.20 [18] Sb Na 3 Sb 660 390 [19] ≈0.60 [20] Si NaSi/Na 0.75 Si 954/725 114 [21] ≈0.50 [22] Ge NaGe 576 205 [23] ≈0.30 [24] P Na 3 P 2596 >300 [25] ≈0.40 [26] Bi Na 3 Bi 385 250 [11f ] ≈0.55 [27] a) The value of volume change may vary in different studies.www.afm-journal.de www.advancedsciencenews.com 1808745 (4 of 32)

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Carbon and Carbon Hybrid Materials as Anodes for Sodium‐Ion Batteries

Cited by 48 publications

References 122 publications

Understanding the Charge Storage Mechanism to Achieve High Capacity and Fast Ion Storage in Sodium‐Ion Capacitor Anodes by Using Electrospun Nitrogen‐Doped Carbon Fibers

Understanding the Charge Storage Mechanism to Achieve High Capacity and Fast Ion Storage in Sodium‐Ion Capacitor Anodes by Using Electrospun Nitrogen‐Doped Carbon Fibers

A Promising Hard Carbon−Soft Carbon Composite Anode with Boosting Sodium Storage Performance

Peering into Alloy Anodes for Sodium‐Ion Batteries: Current Trends, Challenges, and Opportunities

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