Nitrogen and phosphorous co-doped hierarchical meso—microporous carbon nanospheres with extraordinary lithium storage for high-performance lithium-ion capacitors

Li, Tong; Zhang, Jianjun; Li, Chongxing; Zhao, Han; Zhang, Jing; Qian, Zhao; Yin, Longwei; Wang, Rutao

doi:10.1007/s40843-021-2047-x

Cited by 27 publications

(11 citation statements)

References 60 publications

(64 reference statements)

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“…Compared to N/P-MC, the slightly improved graphitic degree of N/P-MC@RGO is mainly related to the introduction of RGO with a higher degree of graphitization. According to the equation (L a (nm) = (2.4 × 10 -10 ) λ 4 (I D /I G )) [30,31] , the average domain size (L a ) of N/P-MC@RGO is measured to be ~14.32 nm, similar to other reports on carbon materials with a low degree of graphitization and/or heteroatom doping properties [29,[31][32][33][34] .…”

Section: Resultssupporting

confidence: 82%

Two-dimensional nitrogen and phosphorus co-doped mesoporous carbon-graphene nanosheets anode for high-performance potassium-ion capacitor

Li¹,

Huang²,

Lei³

et al. 2023

Energy Mater

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Heteroatom-doped carbon materials have high gravimetric potassium-ion storage capability because of their abundant active sites and defects. However, their practical applications toward potassium storage are limited by sluggish reaction kinetics and short cycling life owing to the large ionic radius of K+ and undesirable parasitic reactions. Herein, we report a new strategy that allows for bottom-up patterning of thin N/P co-doped carbon layers with a uniform mesoporous structure on two-dimensional graphene sheets. The highly porous architecture and N/P co-doping properties provide abundant active sites for K+, and the graphene sheets promote charge/electron transfer. This synergistic structure enables excellent K+ storage performance in terms of specific capacity (387.6 mAh g-1 at 0.05 A g-1), rate capability (over 5 A g-1), and cycling stability (70% after 3,000 cycles). As a proof of concept, a potassium-ion capacitor assembled using this carbon anode yields a high energy density of 107 Wh kg-1, a maximum power density of 18.3 kW kg-1, and ultra-long cycling stability over 40,000 cycles.

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Section: Resultssupporting

confidence: 82%

Two-dimensional nitrogen and phosphorus co-doped mesoporous carbon-graphene nanosheets anode for high-performance potassium-ion capacitor

Li¹,

Huang²,

Lei³

et al. 2023

Energy Mater

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“…Figure a shows the CV curves of NHC at 0.2 mV s –1 a. During the Li + insertion, two peaks appear at ∼0.43 and 1.36 V in the first cycle and then vanish in the following cycles, corresponding to the formation of a SEI, while the sharp peak near 0.01 V is originated from Li + intercalation into the graphitic domain of HC. , The next four scan curves almost overlapped, indicating great reversibility and stability. Figure b presents the galvanostatic charge–discharge (GCD) curves of NHC and commercial graphite at 0.1 A g –1 .…”

Section: Resultsmentioning

confidence: 99%

Toward Highly Selective Heteroatom Dopants in Hard Carbon with Superior Lithium Storage Performance

Cai

Fan

et al. 2023

ACS Appl. Mater. Interfaces

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Hard carbons (HCs) have gained much attention for next-generation high energy density lithium-ion battery (LIB) anode candidates. However, voltage hysteresis, low rate capability, and large initial irreversible capacity severely affect their booming application. Herein, a general strategy is reported to fabricate heterogeneous atom (N/S/P/Se)-doped HC anodes with superb rate capability and cyclic stability based on a three-dimensional (3D) framework and a hierarchical porous structure. The obtained N-doped hard carbon (NHC) exhibits an excellent rate capability of 315 mA h g–1 at 10.0 A g–1 and a long-term cyclic stability of 90.3% capacity retention after 1000 cycles at 3 A g–1. Moreover, the as-constructed pouch cell delivers a high energy density of 483.8 W h kg–1 and fast charging capability. The underlying mechanisms of lithium storage are illustrated by electrochemical kinetic analysis and theoretical calculations. It is demonstrated that heteroatom doping imposes significant effects on adsorption and diffusion for Li+. The versatile strategy in this work opens an avenue for rational design of advanced carbonaceous materials with high performance for LIB applications.

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“…59 The researchers employed a typical synthesis method to achieve an extremely uniform porous structure of NHPC, in which the polyaniline was used as a N-doping carbon precursor and silicon dioxide served as the template. 60,61 Through in situ assembly and subsequently carbonization, NHPC was formed. Acid etching was performed to obtain NHPC with a nanospherical morphology (Figure 6C).…”

Section: Construct the Host For Se Cathodesmentioning

confidence: 99%

A review of all‐solid‐state lithium‐selenium batteries

Guo,

Zhang,

Tang

et al. 2023

Battery Energy

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Rechargeable lithium‐selenium batteries (LSeBs) are promising candidates for next‐generation energy storage systems due to their exceptional theoretical volumetric energy density (3253 mAh cm−3). However, akin to lithium‐sulfur batteries, the adoption of LSeBs has been hampered by problems such as polyselenides migration in liquid electrolytes, uncontrolled dendrite growth and safety concerns. To overcome these issues, researchers proposed to use the solid‐state electrolytes (SSEs) as a method, which could mitigate the formation of polyselenides. However, practical utilization of the all‐solid‐state Li‐Se batteries (ASSLSeBs) face significant obstacles, including sluggish redox kinetics during Se conversion (Se ↔ Li2Se), inadequate interfacial contact and formation of Li dendrites. Scientists have applied strategies to tackle these challenges. This article offers a timely review of emerging strategies. The article begins by conducting a detailed analysis of the working principles of ASSLSeBs and identifying the critical challenges that hinder practical application. Subsequently, the article presents a comprehensive summary of various strategies aimed at boosting the development of ASSLSeBs, which encompass advancements in Se cathode materials, optimization of SSEs, design of stable Li anodes, and approaches in addressing the interfacial challenge. Finally, the article offers further perspectives about promoting the application of ASSLSeBs. It highlights the need for continued research and development to overcome existing limitations. Overall, by understanding these emerging strategies, researchers could enhance the technology of LSeBs, bringing us closer to the practical realization of high‐energy storage systems.

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Nitrogen and phosphorous co-doped hierarchical meso—microporous carbon nanospheres with extraordinary lithium storage for high-performance lithium-ion capacitors

Cited by 27 publications

References 60 publications

Two-dimensional nitrogen and phosphorus co-doped mesoporous carbon-graphene nanosheets anode for high-performance potassium-ion capacitor

Two-dimensional nitrogen and phosphorus co-doped mesoporous carbon-graphene nanosheets anode for high-performance potassium-ion capacitor

Toward Highly Selective Heteroatom Dopants in Hard Carbon with Superior Lithium Storage Performance

A review of all‐solid‐state lithium‐selenium batteries

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