scholarly journals Novel Mesoporous Nanotitania/Carbon Composite Electrodes for Electrochemical Energy Storage

2013 ◽  
Vol 50 (24) ◽  
pp. 37-48
Author(s):  
M. J. Sussman ◽  
N. Brodusch ◽  
R. Gauvin ◽  
G. P. Demopoulos
Keyword(s):  
Energy Storage ◽  
Carbon Composite ◽  
Electrochemical Energy Storage ◽  
Composite Electrodes ◽  
Electrochemical Energy

scholarly journals Designing Structural Electrochemical Energy Storage Systems: A Perspective on the Role of Device Chemistry

2022 ◽  
Vol 9 ◽  
Author(s):  
Adriana M. Navarro-Suárez ◽  
Milo S. P. Shaffer
Keyword(s):  
Energy Storage ◽  
Inorganic Compounds ◽  
Electrical Energy ◽  
Electrochemical Energy Storage ◽  
Storage Device ◽  
Composite Electrodes ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electrochemical Energy

Structural energy storage devices (SESDs), designed to simultaneously store electrical energy and withstand mechanical loads, offer great potential to reduce the overall system weight in applications such as automotive, aircraft, spacecraft, marine and sports equipment. The greatest improvements will come from systems that implement true multifunctional materials as fully as possible. The realization of electrochemical SESDs therefore requires the identification and development of suitable multifunctional structural electrodes, separators, and electrolytes. Different strategies are available depending on the class of electrochemical energy storage device and the specific chemistries selected. Here, we review existing attempts to build SESDs around carbon fiber (CF) composite electrodes, including the use of both organic and inorganic compounds to increase electrochemical performance. We consider some of the key challenges and discuss the implications for the selection of device chemistries.

Rational design of a tubular, interlayer expanded MoS2–N/O doped carbon composite for excellent potassium-ion storage

2019 ◽  
Vol 7 (15) ◽  
pp. 9305-9315 ◽  
Author(s):  
Nan Zheng ◽  
Guangyu Jiang ◽  
Xiao Chen ◽  
Jiayi Mao ◽  
Yajun Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
Rational Design ◽  
Large Scale ◽  
Storage System ◽  
Energy Storage System ◽  
Carbon Composite ◽  
Potassium Ion ◽  
Electrochemical Energy Storage ◽  
Ion Storage ◽  
Electrochemical Energy

Potassium ion batteries (KIBs) are the emerging and promising energy storage system for large-scale electrochemical energy storage.

scholarly journals Maximizing ion accessibility in MXene-knotted carbon nanotube composite electrodes for high-rate electrochemical energy storage

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiang Gao ◽  
Xuan Du ◽  
Tyler S. Mathis ◽  
Mengmeng Zhang ◽  
Xuehang Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Energy Storage ◽  
Ion Transport ◽  
Low Temperatures ◽  
Electrochemical Energy Storage ◽  
Composite Electrodes ◽  
Rate Performance ◽  
Organic Electrolytes ◽  
High Capacitance ◽  
Electrochemical Energy

AbstractImproving the accessibility of ions in the electrodes of electrochemical energy storage devices is vital for charge storage and rate performance. In particular, the kinetics of ion transport in organic electrolytes is slow, especially at low operating temperatures. Herein, we report a new type of MXene-carbon nanotube (CNT) composite electrode that maximizes ion accessibility resulting in exceptional rate performance at low temperatures. The improved ion transport at low temperatures is made possible by breaking the conventional horizontal alignment of the two-dimensional layers of the MXene Ti3C2 by using specially designed knotted CNTs. The large, knot-like structures in the knotted CNTs prevent the usual restacking of the Ti3C2 flakes and create fast ion transport pathways. The MXene-knotted CNT composite electrodes achieve high capacitance (up to 130 F g−1 (276 F cm−3)) in organic electrolytes with high capacitance retention over a wide scan rate range of 10 mV s−1 to 10 V s−1. This study is also the first report utilizing MXene-based supercapacitors at low temperatures (down to −60 °C).

Hydrothermal Synthesis of Vanadium Pentoxides–Reduced Graphene Oxide Composite Electrodes for Enhanced Electrochemical Energy Storage

MRS Advances ◽  
2016 ◽  
Vol 1 (45) ◽  
pp. 3049-3055
Author(s):  
S. Gupta ◽  
B. Aberg ◽  
S. B. Carrizosa
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Electronic Conductivity ◽  
Superior Performance ◽  
Electrochemical Energy Storage ◽  
Layered Crystal ◽  
Composite Electrodes ◽  
Electrochemical Energy

ABSTRACTGraphene-based nanomaterials (graphene nanosheets/graphene nanoribbons) decorated with vanadium pentoxide (V2O5) nanobelts (i.e. GVNBs) were synthesized via one-step low-temperature facile hydrothermal/solvothermal method as high-performance electrochemical composite electrodes. VNBs were formed in the presence of graphene oxide (GO), a mild oxidant, which transforms into reduced GO (rGOHT) assisted in enhancing the electronic conductivity with mechanical strength for GVNBs. From surface sensitive electron microscopy and spectroscopy structural characterization techniques and analyses, rGOHT nanosheets/ nanoribbons appear to be inserted into and coated with the layered crystal structure of VNBs, which further confirmed the enhanced electrical conductivity of VNBs. The electrochemical energy storage capacity of GVNBs is investigated using electrochemistry and the specific capacitance Cs are determined from both the cyclic voltammetry (CV) with scan rate and galvanostatic charge/discharge V-t profiles with varying current density. The GVNBs having rGO-rich composite V1G3 (V2O5/GO = 1:3) showed superior performance followed by V2O5-rich V3G1 (V2O5/GO = 3:1) as compared with V1G1 (V2O5/GO = 1:1) composites besides pure component (rGOHT and V2O5) materials. Moreover, V1G3 and V3G1 composites showed excellent cyclic stability and the capacitance retention of > 80% after 200 cycles. Furthermore, by performing extensive simulations and modeling of electrochemical impedance spectroscopy data, we determined various circuit parameters (charge transfer and solution resistance, double layer and low frequency capacitance). These findings highlight the comparative performance of nanocomposite hybrid electrode materials.

Carbothermal conversion of boric acid into boron-oxy-carbide nanostructures for high-power supercapacitors

2021 ◽  
Author(s):  
Dhanasekar Kesavan ◽  
Vimal Kumar Mariappan ◽  
Karthikeyan Krishnamoorthy ◽  
Sang-Jae Kim
Keyword(s):  
Energy Storage ◽  
Boric Acid ◽  
High Power ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Carbothermal Method ◽  
Electrochemical Energy

In this study, we report a facile carbothermal method for the preparation of boron-oxy-carbide (BOC) nanostructures and explore their properties towards electrochemical energy storage devices.

Sign in / Sign up

Export Citation Format

Share Document