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A high performance Li-ion capacitor constructed with Li4Ti5O12/C hybrid and porous …
A Li-ion capacitor (LIC) is constructed with Li 4 Ti 5 O 12 /C hybrid as the negative electrode and 3D porous graphene macroform (PGM) as the positive electrode. After optimizing the mass ratio (m + /m −) of the electrode materials with the value of 2, the as-fabricated LIC delivers a maximum energy density of 72 Wh kg −1 with the power …
Porous Carbon Materials for Supercapacitor Applications
The electrochemical performances of porous carbon-based supercapacitors greatly depend on the rational design of porous architecture and surface morphology. This chapter systematically outlines the significant advances in the synthetic strategies, different …
All-carbon lithium capacitor based on salt crystal-templated, N-doped porous carbon electrodes with superior energy storage
In the pursuit of a lithium ion capacitor (LIC) with higher energy density and lower cost, the all-carbon symmetric-like LIC (ACS-LIC) has recently risen to prominence. In this article, we report a successful example of ACS-LIC synthesized by constructing both anode and cathode with one designed porous carbo
Highly Sensitive Porous PDMS-Based Capacitive Pressure …
A novel porous polydimethylsiloxane (PDMS)-based capacitive pressure sensor was fabricated by optimizing the dielectric layer porosity for wide-range pressure sensing applications in the sports field. The pressure sensor consists of a porous PDMS dielectric layer and two fabric-based conductive electrodes. The porous PDMS dielectric …
Pitch-based 3D tremella-like porous carbon with cavitary structures: Applications in symmetric capacitors and zinc ion capacitors …
The application of porous carbon in electrochemical energy storage devices (e.g., symmetrical capacitors, SCs, zinc ion capacitors, ZICs) is of great value, while pitch is one of the excellent precursors of porous carbon. …
Biomass-derived porous carbons as supercapacitor electrodes – …
Compared with conventional capacitors, they have 10,000 times more energy density owing to their porous structure and energy storage mechanism. The stored energy in the typical capacitors can be as high as μF or mF level, whereas the …
Controllable synthesis of electric double-layer capacitance and pseudocapacitance coupled porous …
The designability of the porous structure of carbon material makes it a popular material for zinc-ion hybrid capacitors (ZIHCs). However, the micropore confinement effect leads to sluggish kinetics and is not well resolved yet. In this work, a pore-size controllable carbon material was designed to enhance io
A review of charge storage in porous carbon-based supercapacitors
Porous carbon-based electrode materials have been widely used in supercapacitors (SCs) because of their good physicochemical stability, high specific surface area, adjustable pore structure, and excellent electrical conductivity.
Advanced Porous Gold-PANI Micro-Electrodes for High …
These porous Au IDE-based symmetric micro-supercapacitors (P-SMSCs) show a remarkable enhancement in charge storage performance, with a 187% increase in areal capacitance at 2.5 mA compared to conventional flat Au IDE-based …
Electrochemical Capacitors with Confined Redox …
An R-EC capacitor electrode of a drop-cast and porous polymer film based on doped PANI emeraldine-di-hydrogensulfate showed a C of 2646 F g −1. [] The synergistic effect of the redox species on the electrode and in the …
Synthesis and performance of binder-free porous carbon electrodes in electrochemical capacitors …
Porous binder-free carbon electrodes were obtained by impregnating cellulose filter papers with phenolic resin through soft-salt template synthesis and thermal pyrolysis. These self-standing electrodes were used directly in a supercapacitor device. To understand the impacts of filter paper (FP) thickness on
A superionic state in nano-porous double-layer capacitors: …
Recently observed anomalous properties of ionic-liquid-based nanoporous supercapacitors [C. Largot et al., J. Am. Chem. Soc., 2008, 130, 2730–2731] have attracted much attention. Here we present Monte Carlo simulations of a model ionic liquid in slit-like metallic nanopores. We show that exponential screenin
Advanced porous carbon electrodes for …
It is not an exaggeration to say that successful development of any renewable energy source (e.g., windmills and solar cells), hybrid and electric vehicles, and smart grids depends significantly upon the availability of a …
Research papers Nitrogen and oxygen co-doped hierarchical porous carbon for zinc-ion hybrid capacitor …
High content of heteroatom-doped 3D interconnected hierarchical porous carbon were synthesized. • The Zn-ion hybrid capacitor with HPC-4 as cathode has a specific capacity of 125.69 mAh g-1. The Zn//ZnSO 4 //HPC-4 hybrid supercapacitor shows high energy density and superior cycling stability.
Porous Structure-Electrochemical Performance Relationship of …
The porous structure is critical for carbonaceous electrode-based zinc-ion capacitors (ZICs) to achieve excellent electrochemical performance, but the corresponding porous structure-electrochemical performance relationship is yet to be fully understand.
Study of the pore structure and size effects on the electrochemical capacitor behaviors of porous …
We demonstrate the hybridization of a redox-active quinone derivative, 2,5-dichloro-1,4-benzoquinone (DCBQ), and porous carbons with different pore structures for aqueous electrochemical capacitor electrodes. The hybridization is performed in the gas phase, which enables accurate porous carbon/DCBQ weight ratios. T
"Porous and Yet Dense" Electrodes for …
Consequently, the fabricated symmetric capacitor based on the porous MXene aerogel delivered a high C vol of 1293 F cm −3 in aqueous electrolyte. More importantly, with an extra vacuum filtration before the rapid freeze, the obtained 3D MXene film would be
Porous Structure‐Electrochemical Performance Relationship of Carbonaceous Electrode‐Based Zinc Ion Capacitors …
The porous structure is critical for carbonaceous electrode-based zinc-ion capacitors (ZICs) to achieve excellent electrochemical performance, but the corresponding porous structure-electrochemical performance relationship is yet to be fully understand. Herein, three ...
High-Performance Lithium-Ion Capacitors Based on Porosity …
Hierarchical nanoporous Zr-MOF (metal−organic framework) has been designed as the anode of hybrid lithium-ion capacitors (HLICs) with well-organized porosity for fast Li+ ion diffusion and multiple a...
Porous cobalt chalcogenide nanostructures as high performance pseudo-capacitor …
Electrochemical supercapacitor is an essential technology that is pivotal for the development of reliable energy storage devices. Herein, we report the fabrication of supercapacitor electrodes using nanostructured porous cobalt chalcogenide (CoTe 2 and CoSe 2) electrodes, anticipating an enhanced performance owing to their higher contact …
A flexible Zn-ion capacitor based on wood derived porous carbon …
Porous carbon (PC) and cellulose nanofiber (CNF) are extracted from oil palm wood. • The PC shows high surface area and hierarchical pores. • The PAM/CNF hydrogel exhibits superior ionic conductivity and mechanical strength. • A …
Effect of Treatment Conditions of Capacitor Structures Based on Porous …
Capacitors based on silicon materials and technologies have become widely used in high-frequency applications in the current decade. To reduce the dielectric losses of silicon capacitors in the HF and microwave ranges, the possibility of creating capacitor structures from porous silicon with oxide ferroelectrics (barium and strontium …
Tailoring Lignin-Derived Porous Carbon Toward High-Energy Lithium-Ion Capacitor …
Abstract Lignin-derived porous carbon (LPC) shows great potential as electrode material for supercapacitors. ... Tailoring Lignin-Derived Porous Carbon Toward High-Energy Lithium-Ion Capacitor Through Varying Sp 2 - …
Recent advances in porous carbon nanosheets for high …
Metal-ion capacitors (MICs) are considered as highly prospective next-generation energy storage technologies due to the combined merits of metal-ion batteries (MIBs) and supercapacitors (SCs). Nevertheless, the mismatch in reaction kinetics and …
A novel lithium-ion hybrid capacitor based on an …
Lithium-ion capacitors (LICs) have emerged as promising energy storage devices with both high energy density and high power density. However, due to the mismatch of charge-storage capacity and electrode kinetics …
Boosting the Capacitance of Aqueous Zinc-Ion Hybrid Capacitors by Engineering Hierarchical Porous …
With the merits of having excellent safety, being low cost and being environmentally friendly, zinc-ion hybrid supercapacitors (ZHSCs) are expected to be widely used in large-scale energy storage and flexible wearable devices. However, limited by their sluggish kinetic process, ZHSCs suffer from low-specific capacity and poor cycling …
Surface engineered porous silicon for stable, high performance …
P-Si is etched from highly doped (0.01–0.02 Ωcm) silicon wafers using a current density of 45 mA/cm 2 in a 50% HF and ethanol solution (3:8 v/v). This etch condition was optimized to yield ~75% ...
Battery Design Module Application Library
electrochemical_capacitor_porous_electrodes_load_parameters.txt。 1 1 (i1) 1 1 (comp1)> 。2 1 (comp1)> 1 。3,。4 。
Porous Silicon Supercapacitors | SpringerLink
A capacitor was assembled from two electrodes with graphene or TiN coated a 2 μm thick porous silicon layer. EMI-BF 4 ionic liquid was used as electrolyte. During 1,000 CV cycles, the carbon-coated electrodes showed better stability, but the measured capacitance was about three times smaller than for TiN-coated electrodes, 1 …
A novel capacitor technology based on porous silicon
Semantic Scholar extracted view of "A novel capacitor technology based on porous silicon" by V. Lehmann et al. DOI: 10.1016/0040-6090(95)08038-4 Corpus ID: 136728326 A novel capacitor technology based on porous silicon @article{Lehmann1996ANC, title={A ...
Synthesis and performance of binder-free porous carbon electrodes in electrochemical capacitors
Porous binder-free carbon electrodes were obtained by impregnating cellulose filter papers with phenolic resin through soft-salt template synthesis and thermal pyrolysis. These self-standing electrodes were used directly in a supercapacitor device. To understand the impacts of filter paper (FP) thickness on
Enhanced functional properties of porous carbon materials as …
In summary, this review focuses on porous carbon materials and modified porous carbon composites as electrode material in supercapacitor applications, highlighting the effects of raw material, synthetic route and its impact on electrochemical …