Rich-Phosphorus/Nitrogen Co-doping Carbon Boosting the Kinetics of Potassium-ion Hybrid Capacitors

2021 ◽  
Author(s):  
Zhenyu Xie ◽  
Jiannian Xia ◽  
Daping Qiu ◽  
Jinying Wei ◽  
Min Li ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
High Power Density ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Co Doping ◽  
Kinetics Of ◽  
Hybrid Capacitors

Potassium ion hybrid capacitors (PIHCs) meeting the high power density of capacitors and high energy density of batteries are seen as one of the most promising energy storage devices. However,...

Template Orienting One-Dimensional Schiff-Base Polymer: towards Flexible Nitrogen-enriched Carbonaceous Electrodes with Ultrahigh Electrochemical Capacity

Nanoscale ◽  
2021 ◽  
Author(s):  
Zhichang Xiao ◽  
Junwei Han ◽  
Haiyong He ◽  
Xinghao Zhang ◽  
Jing Xiao ◽  
...  
Keyword(s):  
Schiff Base ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Energy Storage Devices ◽  
One Dimensional ◽  
Storage Devices ◽  
Electrochemical Capacity ◽  
Base Polymer

Lithium-ion capacitors (LICs) have attracted much attention considering their efficient combination of high energy density and high-power density. However, to meet the increasing requirements of energy storage devices and the...

scholarly journals MoO2 nanoparticles embedded in N-doped hydrangea-like carbon as a sulfur host for high-performance lithium–sulfur batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (34) ◽  
pp. 20173-20183
Author(s):  
Yasai Wang ◽  
Guilin Feng ◽  
Yang Wang ◽  
Zhenguo Wu ◽  
Yanxiao Chen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Lithium–sulfur batteries are considered to be promising energy storage devices owing to their high energy density, relatively low price and abundant resources.

Planar all-solid-state rechargeable Zn–air batteries for compact wearable energy storage

2019 ◽  
Vol 7 (29) ◽  
pp. 17581-17593 ◽  
Author(s):  
Zhiqian Cao ◽  
Haibo Hu ◽  
Mingzai Wu ◽  
Kun Tang ◽  
Tongtong Jiang
Keyword(s):  
Energy Efficiency ◽  
Energy Storage ◽  
Solid State ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Next Generation ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Novel Design

Planar all-solid-state rechargeable Zn–air batteries with superior energy efficiency demonstrate a novel design for compact all-solid-state rechargeable ZABs towards next-generation wearable energy storage devices with high energy density and safety.

Cellulose nanofibril/boron nitride nanosheet composites with enhanced energy density and thermal stability by interfibrillar cross-linking through Ca2+

2018 ◽  
Vol 6 (4) ◽  
pp. 1403-1411 ◽  
Author(s):  
Junwei Yang ◽  
Haian Xie ◽  
Hao Chen ◽  
Zhuqun Shi ◽  
Tao Wu ◽  
...  
Keyword(s):  
Energy Density ◽  
Breakdown Strength ◽  
Dielectric Materials ◽  
High Energy ◽  
High Energy Density ◽  
Cross Linking ◽  
Cellulose Nanofibril ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Boron Nitride Nanosheet

Flexible and eco-friendly dielectric materials with high energy density and breakdown strength have promising applications in energy storage devices.

scholarly journals Charge storage mechanism in nanoporous carbons and its consequence for electrical double layer capacitors

2010 ◽  
Vol 368 (1923) ◽  
pp. 3457-3467 ◽  
Author(s):  
Patrice Simon ◽  
Yury Gogotsi
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Nanoporous Carbons ◽  
Storage Devices ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
Double Layer Capacitors

Electrochemical capacitors, also known as supercapacitors, are energy storage devices that fill the gap between batteries and dielectric capacitors. Thanks to their unique features, they have a key role to play in energy storage and harvesting, acting as a complement to or even a replacement of batteries which has already been achieved in various applications. One of the challenges in the supercapacitor area is to increase their energy density. Some recent discoveries regarding ion adsorption in microporous carbon exhibiting pores in the nanometre range can help in designing the next generation of high-energy-density supercapacitors.

scholarly journals A General Self-Sacrifice Template Strategy to 3D Heteroatom-Doped Macroporous Carbon for High-Performance Potassium-Ion Hybrid Capacitors

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Junwei Li ◽  
Xiang Hu ◽  
Guobao Zhong ◽  
Yangjie Liu ◽  
Yaxin Ji ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Density Functional ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Capacitance Performance ◽  
Hybrid Capacitors ◽  
Co Doped ◽  
Macroporous Carbon

AbstractPotassium-ion hybrid capacitors (PIHCs) tactfully combining capacitor-type cathode with battery-type anode have recently attracted increasing attentions due to their advantages of decent energy density, high power density, and low cost; the mismatches of capacity and kinetics between capacitor-type cathode and battery-type anode in PIHCs yet hinder their overall performance output. Herein, based on prediction of density functional theory calculations, we find Se/N co-doped porous carbon is a promising candidate for K+ storage and thus develop a simple and universal self-sacrifice template method to fabricate Se and N co-doped three-dimensional (3D) macroporous carbon (Se/N-3DMpC), which features favorable properties of connective hierarchical pores, expanded interlayer structure, and rich activity site for boosting pseudocapacitive activity and kinetics toward K+ storage anode and enhancing capacitance performance for the reversible anion adsorption/desorption cathode. As expected, the as-assembled PIHCs full cell with a working voltage as high as 4.0 V delivers a high energy density of 186 Wh kg−1 and a power output of 8100 W kg−1 as well as excellent long service life. The proof-of-concept PIHCs with excellent performance open a new avenue for the development and application of high-performance hybrid capacitors.

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