Improving Supercapacitor Energy Density via Nanocarbon Electrode Functionalization and Increasing Electrolyte Electrochemical Window

MRS Advances ◽  
2016 ◽  
Vol 1 (19) ◽  
pp. 1377-1382
Author(s):  
Uladzimir Novikau ◽  
Sviatlana Filipovich ◽  
Ihar Razanau
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Energy Density ◽  
Carbon Nanomaterials ◽  
Present Report ◽  
Carbon Powder ◽  
Carbon Cloth ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electrochemical Window

ABSTRACTThe present report is dedicated to a study of possible ways of increasing the energy density of the supercapacitor and thus, bridging the gap between the supercapacitor and the battery. Chemical functionalization of carbon nanomaterials, such as carbon nanotubes, activated carbon cloth, and activated carbon powder used as supercapacitor electrodes as well as novel aqueous electrolytes with the electrochemical window of up to 2 V are described. The hybrid approaches to energy storage mechanism in electrochemical energy storage devices are discussed. The first experimental results on the discussed hybrid energy storage devices are presented.

Electrode thickness design toward bulk energy storage devices with high areal/volumetric energy density

2021 ◽  
Vol 289 ◽  
pp. 116734 ◽  
Author(s):  
Feng Wang ◽  
Lin Zhang ◽  
Qian Zhang ◽  
Jinjiang Yang ◽  
Gaigai Duan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Energy Storage Devices ◽  
Electrode Thickness ◽  
Storage Devices ◽  
Bulk Energy

Evolutionary Structure Prediction Assisted Design of Anode Materials for Ca-Ion Battery Based on Phoshphorene

2021 ◽  
Author(s):  
Chandra Chowdhury ◽  
Pranab Gain ◽  
Ayan Datta
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Structure Prediction ◽  
Anode Materials ◽  
Energy Storage Devices ◽  
Efficient Manner ◽  
Storage Devices ◽  
Multivalent Ions ◽  
Store Energy Density ◽  
P Utilization

Utilization of multivalent ions such as Ca(II), Mg(II), Al(III) in the energy storage devices opens up new opportunities to store energy density in a more efficient manner rather than monovalent...

Integration of Single Co Atoms and Ru Nanoclusters Boosts the Cathodic Performance of Nitrogen-Doped 3D Graphene towards Lithium–Oxygen Batteries

2021 ◽  
Author(s):  
Mingrui Liu ◽  
Jing Li ◽  
Bing Chi ◽  
Long Zheng ◽  
Yuexing Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Next Generation ◽  
Energy Storage Devices ◽  
3D Graphene ◽  
Storage Devices ◽  
Nitrogen Doped ◽  
Automotive Batteries ◽  
Lithium Oxygen Batteries

The Li-O2 battery is recognized as one of the most promising energy storage devices for next-generation automotive batteries due to its extremely high theoretical energy density. The design and preparation...

Catalytic Separator with Co–N–C Nanoreactor for High-Performance Lithium-Sulfur Batteries

2021 ◽  
Author(s):  
Longtao Ren ◽  
Qian Wang ◽  
Yajie Li ◽  
Cejun Hu ◽  
Yajun Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
Next Generation ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Rechargeable lithium-sulfur (Li–S) batteries are considered one of the most promising next-generation energy storage devices because of their high theoretical energy density. However, the dissolution of lithium polysulfides (LiPSs) in...

Porous Activity of Biomass-Activated Carbon Enhanced by Nitrogen-Dopant Towards High-Performance Lithium Ion Hybrid Battery-Supercapacitor

2021 ◽  
Author(s):  
Juan Yu ◽  
Xuyang Wang ◽  
Jiaxin Peng ◽  
Xuefeng Jia ◽  
Linbo Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Pore Structure ◽  
High Performance ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Utilization Efficiency ◽  
Energy Storage Devices ◽  
Storage Devices

Abstract Biomass-activated carbon materials are promising electrode materials for lithium-ion hybrid capacitors (LiCs) because of their natural hierarchical pore structure. The efficient utilization of structural pores in activated carbon is very important for their electrochemical performance. Herein, porous biomass-activated carbon (PAC) with large specific surface area was prepared using a one-step activation method with biomass waste as the carbon source and ZnCl2 as the activator. To further improve its pore structure utilization efficiency, the PAC was doped with nitrogen using urea as the nitrogen source. The experimental results confirmed that PAC-1 with a high nitrogen doping level of 4.66% exhibited the most efficient pore utilization among all the samples investigated in this study. PAC-1 exhibited 92% capacity retention after 8000 cycles, showing good cycling stability. Then, to maximize the utilization of high-efficiency energy storage devices, LiNi0.8Co0.15Al0.05O2 (NCA), a promising cathode material for lithium-ion batteries with high specific capacity, was compounded with PAC-1 in different ratios to obtain NCA@PC composites. The NCA@PC-9 composite exhibited excellent capacitance in LiCs and an energy density of 210.9 Wh kg-1 at a high power density of 13.3 kW kg-1. These results provide guidelines for the design of high-performance and low-cost energy storage devices.

Quantum Dots based Materials for New Generation Supercapacitors Application: A Recent Overview

2021 ◽  
pp. 216-250
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Energy Storage ◽  
Carbon Nanomaterials ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
New Generation ◽  
Current Energy ◽  
Global Population ◽  
Day By Day

The need of energy storage and related devices are increasing day by day, due to the expansion of global population. To deal with such universal crisis, current energy storage devices like supercapacitors need to be improved in their performances and qualities. In this regard, quantum dots (QDs) are extensively being studied, especially due to their excellent properties. The utilization of QDs in supercapacitors is huge as electrode material as well as for fluorescent electrolytes. Various QDs based composites have been made for the same, which includes doping with various metals, non-metals and carbon nanomaterials (CNMs) like graphene, carbon nanotubes (CNTs) etc. In the present chapter the current advancement and futuristic possibilities of supercapacitors have been mentioned extensively.

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.

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