Sustainable solid-state strategy to hierarchical core-shell structured Fe3O4@graphene towards a safer and green sodium ion full battery

Ding, Xiang; Huang, Xiaobing; Jin, Jun‐Ling; Ming, Hai; Wang, Limin; Ming, Jun

doi:10.1016/j.electacta.2017.12.061

Cited by 43 publications

(25 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3][4][5] However, the scalable fabrication of advanced SIBs anode materials that can provide high specific capacity and long-term cycling stability is still challenging. [8][9][10] However, the inherently dramatic volume variation of binary TMOs resulted from the Na + insertion/extraction would lead to electrode pulverization and inferior electrical contact with the current collector, giving rise to rapid capacity decaying and weak cycling stability. [6,7] Recently, transition metal oxides (TMOs, M=Co, Fe, Ni, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…have been attracted increasing interests as promising anode materials for SIBs on account of their large specific capacities, high abundance, and low cost. [8][9][10] However, the inherently dramatic volume variation of binary TMOs resulted from the Na + insertion/extraction would lead to electrode pulverization and inferior electrical contact with the current collector, giving rise to rapid capacity decaying and weak cycling stability. [11] A feasible approach is to prepare ternary TMOs that composed of two distinct metal elements in a single crystalline structure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Three‐Dimensional Porous CoFe₂O₄/Graphene Composite for Highly Stable Sodium‐Ion Batteries

2019

View full text Add to dashboard Cite

Sodium-ion batteries (SIBs) are promising alternatives to lithium-ion batteries (LIBs), because of the low cost and great potential in large-scale energy storage. Herein, we present a simple two-step hydrothermal route to construct a novel CoFe 2 O 4 /graphene composite. The composite is composed of nanoporous CoFe 2 O 4 hollow spheres that are well-anchored onto nitrogen-doped graphene sheets (CoFe 2 O 4 @3D-NG) with a unique 3D network structure, which can not only offer short pathways for Na + diffusion and conductive networks for electron transport, but also render sufficient active sites for Na + interfacial reaction and rigid structural stability for volume expansion. When used as an anode material for SIBs, the CoFe 2 O 4 @3D-NG electrode delivers an impressively high performance of Na storage, which includes a large initial discharge capacity of 596 mAh g À 1 at 50 mA g À 1 , a high rate capability of 79 mAh g À 1 at 1000 mA g À 1 , and a long cyclability of 118 mAh g À 1 after 1200 cycles at 500 mA g À 1 . This work indicates a promising way to design and fabricate advanced CoFe 2 O 4based anode materials for high-performance Na-storage.[a] Dr.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Three‐Dimensional Porous CoFe₂O₄/Graphene Composite for Highly Stable Sodium‐Ion Batteries

2019

View full text Add to dashboard Cite

show abstract

“…In addition to the high lithium diffusion constant, the high capacity of SPAN around 640 mAh g −1 in Figure c can also contribute a lot for the increased energy density. For example, the SPAN‐based batteries demonstrate much higher energy density than those of LTO‐based batteries (e.g., ≈43.5% higher than LTO supposing the NCM cathode performed at a high voltage condition) (Figure d, Figure S3, Supporting Information). Particularly, the practical density energy of SPAN|NCM‐H battery could reach 145.5 Wh kg −1 , which is higher than 90–110 and 120–140 Wh kg −1 for the commercial batteries of C|LMO and C|LFP (Figure S3 and Table S1, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

An Exploration of New Energy Storage System: High Energy Density, High Safety, and Fast Charging Lithium Ion Battery

Wang

Ming

et al. 2018

Adv Funct Materials

Self Cite

124

View full text Add to dashboard Cite

Rechargeable lithium ion battery (LIB) has dominated the energy market from portable electronics to electric vehicles, but the fast-charging remains challenging. The safety concerns of lithium deposition on graphite anode or the decreased energy density using Li 4 Ti 5 O 12 (LTO) anode are incapable to satisfy applications. Herein, the sulfurized polyacrylonitrile (SPAN) is explored for the first time as a high capacity and safer anode in LIBs, in which the high voltage cathode of LiNi 1/3 Co 1/3 Mn 1/3 O 2 (NCM-H) is further introduced to configure a new SPAN|NCM-H battery with great fast-charging features. The LIB demonstrates a good stability with a high capacity retention of 89.7% after 100 cycles at a high voltage of 3.5 V (i.e., 4.6 V vs Li + /Li). Particularly, the excellent rate capability is confirmed and 78.7% of initial capacity can still be delivered at 4.0C. In addition, 97.6% of the battery capacity can be charged within 2.0C, which is much higher than 80% in current fast-charging application standards. The feature of lithiation potential (>1.0 V vs Li + /Li) of SPAN avoids the lithium deposition and improves the safety, while the high capacity over 640 mAh g −1 promises 43.5% higher energy density than that of LTO-based battery, enabling its great competitiveness to conventional LIBs.even shorter) has attracted considerable attention, [1][2][3][4][5] because the fast charging is one of the most important parameters for electronics and electric vehicles applications. However, the conventional fast charging LIBs using graphite anode always suffers the problem of lithium deposition, which not only shortens the cycle life but also induces the serious safety concerns (e.g., internal short circuit). This is because the potential of graphite can be reduced to the threshold of metallic lithium deposition [6][7][8] due to the large polarization under high charging current, while the deposited lithium is highly active and can react with electrolyte, leading to the death of lithium and increase of internal resistance with a rapid capacity fading. [9] Although the strategies of designing porous graphite etched by KOH [10] or synthesizing composites with conductive matrix (e.g., vaporgrown carbon fibers, [11] carbon nanotube or graphene [12] ) and 3D sponged carbon nanofiber [13] have been explored to enhance the rate capability, the new issues of low initial coulombic efficiency (CE), thick solid electrolyte interphase (SEI) or limited capacity still hinder their practical applications. Fast Charging BatteriesThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.

show abstract

“…Full cells based on sulfate and pyrophosphate cathode materials are currently less reported, and their main advantages are abundant resources and environmental friendliness. Fe 3 O 4 @graphite//Na 2.4 Fe 1.8 (SO 4 ) 3 full cell with an average voltage of 3.2 V can deliver an energy density of 224 W h kg −1 at 0.1 C with a capacity retention of 70% after 500 cycles . Although the average voltage of full cells based on sulfate can be further improved by carefully selecting anode materials (such as carbonaceous materials), problems due to their inherent poor thermal stability and crystallinity are bound to affect their practical application.…”

Section: Recent Achievements On Sifcsmentioning

confidence: 99%

Nonaqueous Sodium‐Ion Full Cells: Status, Strategies, and Prospects

Niu

Yin

Guo

2019

Small

View full text Add to dashboard Cite

With ever‐increasing efforts focused on basic research of sodium‐ion batteries (SIBs) and growing energy demand, sodium‐ion full cells (SIFCs), as unique bridging technology between sodium‐ion half‐cells (SIHCs) and commercial batteries, have attracted more and more interest and attention. To promote the development of SIFCs in a better way, it is essential to gain a systematic and profound insight into their key issues and research status. This Review mainly focuses on the interface issues, major challenges, and recent progresses in SIFCs based on diversified electrolytes (i.e., nonaqueous liquid electrolytes, quasi‐solid‐state electrolytes, and all‐solid‐state electrolytes) and summarizes the modification strategies to improve their electrochemical performance, including interface modification, cathode/anode matching, capacity ratio, electrolyte optimization, and sodium compensation. Outlooks and perspectives on the future research directions to build better SIFCs are also provided.

show abstract

Sustainable solid-state strategy to hierarchical core-shell structured Fe3O4@graphene towards a safer and green sodium ion full battery

Abstract: Sustainable solid-state strategy to hierarchical core-shell structured Fe 3 O 4 @graphene towards a safer and green sodium ion full battery,

Cited by 43 publications

References 52 publications

Three‐Dimensional Porous CoFe₂O₄/Graphene Composite for Highly Stable Sodium‐Ion Batteries

Three‐Dimensional Porous CoFe₂O₄/Graphene Composite for Highly Stable Sodium‐Ion Batteries

An Exploration of New Energy Storage System: High Energy Density, High Safety, and Fast Charging Lithium Ion Battery

Nonaqueous Sodium‐Ion Full Cells: Status, Strategies, and Prospects

Contact Info

Product

Resources

About

Sustainable solid-state strategy to hierarchical core-shell structured Fe3O4@graphene towards a safer and green sodium ion full battery

Abstract: Sustainable solid-state strategy to hierarchical core-shell structured Fe 3 O 4 @graphene towards a safer and green sodium ion full battery,

Cited by 43 publications

References 52 publications

Three‐Dimensional Porous CoFe2O4/Graphene Composite for Highly Stable Sodium‐Ion Batteries

Three‐Dimensional Porous CoFe2O4/Graphene Composite for Highly Stable Sodium‐Ion Batteries

An Exploration of New Energy Storage System: High Energy Density, High Safety, and Fast Charging Lithium Ion Battery

Nonaqueous Sodium‐Ion Full Cells: Status, Strategies, and Prospects

Contact Info

Product

Resources

About

Three‐Dimensional Porous CoFe₂O₄/Graphene Composite for Highly Stable Sodium‐Ion Batteries

Three‐Dimensional Porous CoFe₂O₄/Graphene Composite for Highly Stable Sodium‐Ion Batteries