Nano Hard Carbon Anodes for Sodium-Ion Batteries

Kim, Dae-Yeong; Kim, Dong-Hyun; Kim, Soohyun; Lee, Eunkyung; Park, Sang-Kyun; Lee, Jiwoong; Yun, Young; Choi, Si‐Young; Kang, Jun

doi:10.3390/nano9050793

Cited by 30 publications

(18 citation statements)

References 22 publications

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“…[ 92–94 ] One disadvantage of sodium batteries is the lack of a suitable anode host material with low redox potential and good cycling stability. [ 95,96 ] Using metallic sodium as the anode can be a good circumvention to this problem. However, sodium metal shows very high reactivity to air and moisture, even more so than lithium.…”

Section: Anode‐free Sodium Batteriesmentioning

confidence: 99%

Anode‐Free Full Cells: A Pathway to High‐Energy Density Lithium‐Metal Batteries

Nanda

Gupta

Manthiram

2020

Advanced Energy Materials

291

294

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The development of high‐energy density batteries is critical to the decarbonization of the transportation and power generation sectors. For any given lithium‐containing cathode system, the anode‐free full cell configuration, which eliminates excess lithium and pairs the fully lithiated cathode with a bare current collector, can deliver the maximum possible energy density. The absence of free lithium metal during cell assembly confers significant practical advantages as well. It is also the ideal framework for developing a thorough understanding of lithium deposition in conjunction with various cathode systems. However, the poor efficiencies of lithium plating and stripping lead to rapid lithium inventory loss and poor cycle life. In the last few years, multiple studies have demonstrated the application of advanced electrolytes, modified current collectors, and optimized formation and cycling parameters to stabilize lithium deposition and improve cycle life (80% capacity retention) to 100 cycles and beyond. This review provides an overview of the various strategies toward sustaining lithium inventory in anode‐free full cells and summarizes the work undertaken in this nascent field. It is expected that further improvement upon these strategies and a combinatorial approach can enable cycle lives far in excess of what has been achieved so far.

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Section: Anode‐free Sodium Batteriesmentioning

confidence: 99%

Anode‐Free Full Cells: A Pathway to High‐Energy Density Lithium‐Metal Batteries

Nanda

Gupta

Manthiram

2020

Advanced Energy Materials

291

294

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“…The anode materials for SIBs, such as carbonaceous materials [1,2,3], oxides [4], sulfides [5,6], phosphides [7], alloys [8], and Ti-based intercalation compounds [9], have been extensively investigated. Among them, carbonaceous materials, especially the disordered carbon, have gained a great deal of attention as promising candidates because of their high electronic conductivity, eco-friendliness, and thermal stability [10].…”

Section: Introductionmentioning

confidence: 99%

N/S-Co-Doped Porous Carbon Sheets Derived from Bagasse as High-Performance Anode Materials for Sodium-Ion Batteries

Wang

Yang

et al. 2019

Nanomaterials

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Heteroatom doping is considered to be an efficient strategy to improve the electrochemical performance of carbon-based anode materials for Na-ion batteries (SIBs), due to the introduction of an unbalanced electron atmosphere and increased electrochemical reactive sites of carbon. However, developing green and low-cost approaches to synthesize heteroatom dual-doped carbon with an appropriate porous structure, is still challenging. Here, N/S-co-doped porous carbon sheets, with a main pore size, in the range 1.8–10 nm, has been fabricated through a simple thermal treatment method, using KOH-treated waste bagasse, as a carbon source, and thiourea, as the N and S precursor. The N/S-co-doped carbon sheet electrodes possess significant defects, high specific surface area, enhanced electronic conductivity, improved sodium storage capacity, and long-term cyclability, thereby delivering a high capacity of 223 mA h g−1 at 0.2 A g−1 after 500 cycles and retaining 155 mA h g−1 at 1 A g−1 for 2000 cycles. This work provides a low-cost route to fabricate high-performance dual-doped porous carbonaceous anode materials for SIBs.

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“…The diameter of Si NPs ranged from 20 to 30 nm, and the aggregates were less than 1 μm. Chemical characterization of the carbon in the studied material has been performed in previous studies [28,29,30,31,32]. Figure 2b shows the TEM image and the energy dispersive spectrum (EDS) mapping results (Figure 2c,d) of the synthesized Si–C composite in a 1:1 solution of silicon tetrachloride and xylene.…”

Section: Resultsmentioning

confidence: 99%

In Situ Synthesis of Silicon–Carbon Composites and Application as Lithium-Ion Battery Anode Materials

Kim

Kang

2019

Materials

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Silicon can be used in a variety of applications. Particularly, silicon particles are attracting increased attention as energy storage materials for lithium-ion batteries. However, silicon has a limited cycling performance owing to its peeling from the current collector and the volume expansion that occurs during alloying with lithium in the charging process. Significant contributors to this problem are the even distribution of silicon nanoparticles within the carbon matrix and their deep placement in the internal structure. In this study, we synthesized silicon nanoparticles and carbon materials via a bottom-up approach using a new method called plasma in solution. Silicon nanoparticles and the carbon matrix were synthesized in a structure similar to carbon black. It was confirmed that the silicon particles were evenly distributed in the carbon matrix. In addition, the evaluation of the electrochemical performance of the silicon–carbon matrix (Si–C) composite material showed that it exhibited stable cycling performance with high reversible capacity.

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Nano Hard Carbon Anodes for Sodium-Ion Batteries

Cited by 30 publications

References 22 publications

Anode‐Free Full Cells: A Pathway to High‐Energy Density Lithium‐Metal Batteries

Anode‐Free Full Cells: A Pathway to High‐Energy Density Lithium‐Metal Batteries

N/S-Co-Doped Porous Carbon Sheets Derived from Bagasse as High-Performance Anode Materials for Sodium-Ion Batteries

In Situ Synthesis of Silicon–Carbon Composites and Application as Lithium-Ion Battery Anode Materials

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