scholarly journals Fabrication of Highly Conductive Porous Cellulose/PEDOT:PSS Nanocomposite Paper via Post-Treatment

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 612 ◽  
Author(s):  
Youngsang Ko ◽  
Jeonghun Kim ◽  
Dabum Kim ◽  
Goomin Kwon ◽  
Yusuke Yamauchi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Post Treatment ◽  
Electrochemical Energy Storage ◽  
Redox Activity ◽  
Energy Storage Devices ◽  
Electrically Conductive ◽  
Bending Tests ◽  
Storage Devices ◽  
Porous Nanocomposite ◽  
Storage Ability

In this paper, we report the fabrication of highly conductive poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS)/cellulose nanofiber (CNF) nanocomposite paper with excellent flexibility through post-treatment with an organic solvent. The post-treated PEDOT:PSS/CNF porous nanocomposite papers showed a lower sulfur content, indicating the removal of residual PSS. The electrical conductivity of PEDOT:PSS/CNF porous nanocomposite paper was increased from 1.05 S/cm to 123.37 S/cm and 106.6 S/cm by post-treatment with dimethyl sulfoxide (DMSO) and ethylene glycol (EG), respectively. These values are outstanding in the development of electrically conductive CNF composites. Additionally, the highly conductive nanocomposite papers showed excellent bending stability during bending tests. Cyclic voltammetry (CV) showed a Faradaic redox reaction and non-Faradaic capacitance due to the redox activity of PEDOT:PSS and large surface area, respectively. Electrochemical energy storage ability was evaluated and results showed that capacitance improved after post-treatment. We believe that the highly conductive PEDOT:PSS/CNF porous nanocomposite papers with excellent flexibility described here are potential candidates for application in porous paper electrodes, flexible energy storage devices, and bioengineering sensors.

scholarly journals Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4000
Author(s):  
Eunhwan Kim ◽  
Juyeon Han ◽  
Seokgyu Ryu ◽  
Youngkyu Choi ◽  
Jeeyoung Yoo
Keyword(s):  
Ionic Liquid ◽  
Energy Storage ◽  
Lithium Ion ◽  
Electrochemical Energy Storage ◽  
Storage Device ◽  
Energy Storage Device ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Storage Ability ◽  
Electrochemical Energy

For decades, improvements in electrolytes and electrodes have driven the development of electrochemical energy storage devices. Generally, electrodes and electrolytes should not be developed separately due to the importance of the interaction at their interface. The energy storage ability and safety of energy storage devices are in fact determined by the arrangement of ions and electrons between the electrode and the electrolyte. In this paper, the physicochemical and electrochemical properties of lithium-ion batteries and supercapacitors using ionic liquids (ILs) as an electrolyte are reviewed. Additionally, the energy storage device ILs developed over the last decade are introduced.

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.

Phase Boundary Derived Pseudocapacitance Enhanced Nickel-Based Composites for Electrochemical Energy Storage Devices

2017 ◽  
Vol 8 (5) ◽  
pp. 1701681 ◽  
Author(s):  
Bei Long ◽  
Muhammad-Sadeeq Balogun ◽  
Lei Luo ◽  
Weitao Qiu ◽  
Yang Luo ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Boundary ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electrochemical Energy

Development of High-Voltage Aqueous Electrochemical Energy Storage Devices

2017 ◽  
Vol 4 (16) ◽  
pp. 1700279 ◽  
Author(s):  
Jia Yu ◽  
Chao Mu ◽  
Xinyu Qin ◽  
Chao Shen ◽  
Bingyi Yan ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Voltage ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
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.

scholarly journals Graphdiyne for Electrochemical Energy Storage Devices

2018 ◽  
Vol 34 (9) ◽  
pp. 1029-1047 ◽  
Author(s):  
Xiangyan SHEN ◽  
◽  
Jianjiang HE ◽  
Ning WANG ◽  
Changshui HUANG ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electrochemical Energy
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