High energy density hybrid lithium-ion capacitor enabled by Co3ZnC@N-doped carbon nanopolyhedra anode and microporous carbon cathode

Zhu, Guoyin; Chen, Tao; Wang, Lei; Ma, Lianbo; Hu, Yi; Chen, Renpeng; Wang, Yanrong; Wang, Caixing; Yan, Wen; Tie, Zuoxiu; Liu, Jie; Jin, Zhong

doi:10.1016/j.ensm.2018.04.009

Cited by 124 publications

(49 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, a unique architecture is desperately required to prevent the degradation of MNs during the electrochemical reactions. Core–shell architecture formation is one of the kinds which can effectively enhance the stability of MNs without causing them to lose their electrochemical performance, by preventing MNs from their aggregation and serving to retain their superstructure . Recently, a core–shell FeN/NG nanohybrid based counter electrode for dye‐sensitized solar cells to achieve high conversion efficiency and electrochemical stability has been established …”

Section: Introductionmentioning

confidence: 99%

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Balamurugan

Nguyen

Aravindan

et al. 2018

Adv Funct Materials

223

View full text Add to dashboard Cite

To meet a fast-emerging demand, flexible energy storage applications have a great interest in the development of highly flexible hierarchical nanoarchitectures. Metal nitrides have recently been paid a significant interest as a promising electrode material for supercapacitors (SCs) owing to their high electrical conductivity, excellent redox properties, and outstanding mechanical strength. However, poor electrochemical stability seriously limits the commercialization possibilities. Herein, a novel strategy is presented for the synthesis of nitrogen-doped graphene encapsulated with ultrasmall nickelcobalt nitride (NiCo 2 N) and nickel-iron nitride (NiFeN) core-shell architectures that are explored as advanced electrodes for flexible solid-state SC. The flexible NiCo 2 N@NG//NiFeN@NG asymmetric SC delivers an ultrahigh energy density of ≈94.93 Wh kg −1 at 0.79 kW kg −1 , exceptional power density (≈74.67 Wh kg −1 at 39.53 kW kg −1 ), and ultralong cycle life (≈5.07% drop in initial capacity after 25 000 cycles). These results promote the core-shell hybrids that can be served as advanced supercapacitor materials for flexible energy storage applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Balamurugan

Nguyen

Aravindan

et al. 2018

Adv Funct Materials

223

View full text Add to dashboard Cite

show abstract

“…The deconvoluted peaks of C 1s (Fig. S7) at 284.6, 285.8, 286.7, and 288.6 eV can be ascribed to C=C, C-N, C-O-C, and C-O, respectively [26]. The characteristic peak of C-N demonstrates the presence of N-doping.…”

Section: Characterizations Of the Fe 3 O 4 @Nc Negative Electrodementioning

confidence: 93%

“…However, the negative kinetics based on the lithiation/delithiation in the bulk is generally slower than the positive surface or near-surface adsorption/desorption. The resulting kinetic imbalance between the two electrodes greatly inhibits the full energy utilization of battery-type negative electrodes [26]. In addition, an enlarged operating voltage window is usually obtained for LICs, which is significantly beneficial for the improvement of energy density, as the energy density is directly proportional to the square of voltage window [27].…”

Section: Introductionmentioning

confidence: 99%

Iron oxide encapsulated in nitrogen-rich carbon enabling high-performance lithium-ion capacitor

Zhou

Kang

et al. 2020

Sci. China Mater.

View full text Add to dashboard Cite

Lithium-ion capacitors (LICs) could combine the virtues of high power capability of conventional supercapacitors and high energy density of lithium-ion batteries. However, the lack of high-performance electrode materials and the kinetic imbalance between the positive and negative electrodes are the major challenge. In this study, Fe 3 O 4 nanoparticles encapsulated in nitrogen-rich carbon (Fe 3 O 4 @NC) were prepared through a self-assembly of the colloidal FeOOH with polyaniline (PANI) followed by pyrolysis. Due to the well-designed nanostructure, conductive nitrogen-rich carbon shells, abundant micropores and high specific surface area, Fe 3 O 4 @NC-700 delivers a high capacity, high rate capability and long cycling stability. Kinetic analyses of the redox reactions reveal the pseudocapacitive mechanism and the feasibility as negative material in LIC devices. A novel LIC was constructed with Fe 3 O 4 @NC-700 as the negative electrode and expanded graphene (EGN) as the positive electrode. The wellmatched two electrodes effectively alleviate the kinetic imbalance between the positive and negative electrodes. As a result, Fe 3 O 4 @NC-700//EGN LIC exhibits a wide operating voltage window, and thus achieves an ultrahigh energy density of 137.5 W h kg −1. These results provide fundamental insights into the design of pseudocapacitive electrode and show future research directions towards the next generation energy storage devices.

show abstract

“…After detailed calculations as detailed descriptions in the Supporting Information, the higher b value of the MoSe 2 / MoC/N-C electrode (0.90 vs. 0.69 of the MoSe 2 /C at the cathodic peak) reveals a faster ionic transportation which resulted in a better rate performance (Fig. 4b) [48][49][50][51]. Figure 4c shows the calculated voltage profile for the capacitive current (colored region) at the scan rate of 1.2 mV s −1 .…”

Section: Electrochemical Lithium-ion Storage Performance and Reactionmentioning

confidence: 99%

Tuning Interface Bridging Between MoSe2 and Three-Dimensional Carbon Framework by Incorporation of MoC Intermediate to Boost Lithium Storage Capability

et al. 2020

View full text Add to dashboard Cite

show abstract

High energy density hybrid lithium-ion capacitor enabled by Co3ZnC@N-doped carbon nanopolyhedra anode and microporous carbon cathode

Cited by 124 publications

References 60 publications

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Iron oxide encapsulated in nitrogen-rich carbon enabling high-performance lithium-ion capacitor

Tuning Interface Bridging Between MoSe2 and Three-Dimensional Carbon Framework by Incorporation of MoC Intermediate to Boost Lithium Storage Capability

Contact Info

Product

Resources

About