Porous N-doped carbon nanostructure integrated with mesh current collector for Li-ion based energy storage

Cheng, Heng-Yi; Cheng, Po‐Yuan; Chuah, Xui‐Fang; Huang, Chun‐Lung; Hsieh, Cheng‐Ting; Yu, Jiaqi; Lin, Chu‐Hsing; Lu, Shih‐Yuan

doi:10.1016/j.cej.2019.05.180

Cited by 24 publications

(11 citation statements)

References 54 publications

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“…Nevertheless, their power densities are not satisfactory because of the sluggish lithium-ion diffusion within the electrode materials. On the other hand, supercapacitors (SCs) store charges through the fast superficial non-Faradaic ion adsorption/desorption on the electrodes, exhibiting high power densities and long cycle life, but low energy densities. − In this regard, lithium-ion capacitors (LICs), pairing battery-type anodes and capacitor-type cathodes in organic electrolytes, can deliver high power and energy densities and have drawn increasing research efforts in recent years. The outstanding energy storage performance of LICs can be attributed to both the high rate capability of the capacitor-type cathodes and the high specific capacities of the battery-type anodes.…”

Section: Introductionmentioning

confidence: 99%

Hollow Porous α-Fe₂O₃ Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

Tan

et al. 2021

ACS Sustainable Chem. Eng.

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The lithium-ion capacitor (LIC) is a novel energy storage device, pairing battery-type anodes with capacitor-type cathodes, capable of delivering high energy and power densities. The anode materials of excellent high-rate capability, however, are required to resolve the common kinetics imbalance issue for high-performance LICs. A simple one-step solvothermal, metal–organic framework (MOF) evolved process was developed to synthesize hollow porous α-Fe2O3 nanoparticles (α-Fe2O3 HPNPs) as an anode material of excellent high-rate capability for high-performance LICs. The α-Fe2O3 HPNP anode achieved an excellent high-rate capability and cycling stability, through accelerating lithium-ion diffusions with the porous shell and shortening lithium-ion diffusion paths and buffering large volume variations during cycling with the confined hollow space. The quantitative kinetic analyses showed that capacitive processes are the main contributor to the capacity generation of the α-Fe2O3 HPNP anode, making the α-Fe2O3 HPNP an excellent match with capacitor-type cathodes, glucose-derived carbon nanospheres (GCNS) of high specific surface areas, for the assembly of LICs. The α-Fe2O3 HPNP//GCNS LIC delivered a high energy density of 107 Wh kg–1 at 0.24 W kg–1 and maintained an adequate energy density of 86 Wh kg–1 at an extremely high power density of 9.68 kW kg–1. Moreover, it exhibited a high capacity retention of 84% after 2500 cycle operations at 1 A g–1. Both materials and nanostructure of electrodes play a key role for high-performance LICs, and the hollow porous nanoparticulate structure is proven to be an advantageous nanostructure for the anode materials of LICs.

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Section: Introductionmentioning

confidence: 99%

Hollow Porous α-Fe₂O₃ Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

Tan

et al. 2021

ACS Sustainable Chem. Eng.

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“…The ICE (84.35%) is higher than in the Na anode (73.42%), which might be due to the difference in the structure and formation kinetics of the SEI. [ 26 ] Nevertheless, the reversible capacities were gradually faded to 131 mA h g −1 for LIBs after 100 cycles corresponding to ≈30.85% of its initial charge capacity. This confirms that WS 2 materials show better Na storage performance than Li storage performance.…”

Section: Resultsmentioning

confidence: 99%

In Situ, Atomic‐Resolution Observation of Lithiation and Sodiation of WS₂ Nanoflakes: Implications for Lithium‐Ion and Sodium‐Ion Batteries

Wang

Yao

et al. 2021

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WS2 nanoflakes have great potential as electrode materials of lithium‐ion batteries (LIBs) and sodium‐ion batteries (SIBs) because of their unique 2D structure, which facilitates the reversible intercalation and extraction of alkali metal ions. However, a fundamental understanding of the electrochemical lithiation/sodiation dynamics of WS2 nanoflakes especially at the nanoscale level, remains elusive. Here, by combining battery electrochemical measurements, density functional theory calculations, and in situ transmission electron microscopy, the electrochemical‐reaction kinetics and mechanism for both lithiation and sodiation of WS2 nanoflakes are investigated at the atomic scale. It is found that compared to LIBs, SIBs exhibit a higher reversible sodium (Na) storage capacity and superior cyclability. For sodiation, the volume change due to ion intercalation is smaller than that in lithiation. Also, sodiated WS2 maintains its layered structure after the intercalation process, and the reduced metal nanoparticles after conversion in sodiation are well‐dispersed and aligned forming a pattern similar to the layered structure. Overall, this work shows a direct interconnection between the reaction dynamics of lithiated/sodiated WS2 nanoflakes and their electrochemical performance, which sheds light on the rational optimization and development of advanced WS2‐based electrodes.

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“…Subsequently, the HPC was used as both cathode and anode material to assemble a LIC, and the device exhibited an energy density of 189 Wh/kg, a power density of 14431 W/kg, and excellent capacity retention of 91.3 % after 10000 cycles ( Figure 3c). Similarly, Cheng et al [84] reported a hierarchical porous N-doped carbon through carbonizing polydopamine with the assistance of MSS (5 0 nm) hard template. Then, a high-performance LIC was fabricated based on the obtained carbon materials, which showed high energy densities of 145-57.5 Wh/kg at power densities from 1.4 to 17.3 kW/kg and 5000 cycles with retention of 85 %.…”

Section: Templated Carbonmentioning

confidence: 95%

Recent Advances on Carbon‐Based Materials for High Performance Lithium‐Ion Capacitors

Liu

Zhang

et al. 2021

Batteries & Supercaps

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Lithium‐ion capacitors (LICs) combining of lithium‐ion batteries (LIBs) and supercapacitors (SCs) with improved performance bridge the gap between these two devices, and have attracted huge attention in the field of high‐efficiency electrochemical energy storage. The behavior of electrode materials is essential for the realization of high energy and high output LICs devices. As the most widely utilized electrodes, carbon materials demonstrated their ability in LICs with fast charge storage and long life‐span. Here, an overview of carbon materials for advanced LICs applications is given. The advantages and shortcomings of carbon materials as electrodes are systematically analyzed with the purpose of disclosing their influence on LICs devices. In light of this analysis, the critical aspects are discussed, which should be dealt with in the future for the realization of desires high‐performance LICs devices.

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Porous N-doped carbon nanostructure integrated with mesh current collector for Li-ion based energy storage

Cited by 24 publications

References 54 publications

Hollow Porous α-Fe₂O₃ Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

Hollow Porous α-Fe₂O₃ Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

In Situ, Atomic‐Resolution Observation of Lithiation and Sodiation of WS₂ Nanoflakes: Implications for Lithium‐Ion and Sodium‐Ion Batteries

Recent Advances on Carbon‐Based Materials for High Performance Lithium‐Ion Capacitors

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Porous N-doped carbon nanostructure integrated with mesh current collector for Li-ion based energy storage

Cited by 24 publications

References 54 publications

Hollow Porous α-Fe2O3 Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

Hollow Porous α-Fe2O3 Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

In Situ, Atomic‐Resolution Observation of Lithiation and Sodiation of WS2 Nanoflakes: Implications for Lithium‐Ion and Sodium‐Ion Batteries

Recent Advances on Carbon‐Based Materials for High Performance Lithium‐Ion Capacitors

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Hollow Porous α-Fe₂O₃ Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

Hollow Porous α-Fe₂O₃ Nanoparticles as Anode Materials for High-Performance Lithium-Ion Capacitors

In Situ, Atomic‐Resolution Observation of Lithiation and Sodiation of WS₂ Nanoflakes: Implications for Lithium‐Ion and Sodium‐Ion Batteries