High-temperature and high-energy-density polymer dielectrics for capacitive energy storage

2018 ◽  
Author(s):  
Yao Zhou ◽  
Qi Li
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Capacitive Energy Storage ◽  
Polymer Dielectrics

Materials Research for High Energy Density Electrochemical Capacitor

2008 ◽  
Vol 1100 ◽  
Author(s):  
Andrew F. Burke
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Dielectric Materials ◽  
High Energy ◽  
Cycle Life ◽  
High Energy Density ◽  
Capacitive Energy Storage ◽  
High Electronic Conductivity ◽  
Materials Research ◽  
Power Capability

AbstractIn April 2007, the Office of Basic Energy Science, United States Department of Energy organized and conducted a Basic Energy Sciences Workshop for Electrical Energy Storage at which basic research needs for capacitive energy storage were considered in detail. This paper is intended to highlight the materials research findings/needs of the workshop and to relate them to the development of high energy density capacitors that can have an energy density approaching that of lead acid batteries, a power density greater than that of lithium ion batteries, and cycle life approaching that of carbon/carbon double-layer capacitors. Capacitors inherently have long cycle life and high power capability so the key issue is how to increase their energy density with minimum sacrifice of their inherent cycle life and power advantages. This requires the development of electrode charge storage materials with an effective high specific capacitance (F/g) and high electronic conductivity. The most promising electrode materials appear to be optimized activated carbons, graphitic carbons, nanotube carbons, and metal oxides. Cells can be assembled that utilize one of these materials in the one electrode and another of the material in the other electrode. Such hybrid cells can operate at 3-4V using organic electrolytes and potentially can have energy densities of 15-25 Wh/kg. Initial research is also underway on solid-state, high energy density devices utilizing high dielectric materials (K>15000) which would operate at very high cell voltage. If such dielectric materials can be developed, these devices may have energy densities approaching those of lithium batteries.

Ultrahigh Charge-discharge Efficiency and High Energy Density of High-temperature Polymer Sandwiched

2021 ◽  
Author(s):  
Hanxi Chen ◽  
Zhongbin Pan ◽  
Yu Cheng ◽  
Xiangping Ding ◽  
Jinjun Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Energy Density ◽  
Elevated Temperatures ◽  
Dielectric Materials ◽  
High Energy ◽  
High Energy Density ◽  
Capacitive Energy Storage ◽  
New Generation ◽  
Discharge Efficiency ◽  
Charge Discharge

A new generation of high-temperature dielectric materials toward capacitive energy storage is highly demanded as power electronics are always exposed to elevated temperatures in high-power applications. Polymer dielectric materials, an...

scholarly journals Perspectives and challenges for lead-free energy-storage multilayer ceramic capacitors

2021 ◽  
Vol 10 (6) ◽  
pp. 1153-1193
Author(s):  
Peiyao Zhao ◽  
Ziming Cai ◽  
Longwen Wu ◽  
Chaoqiong Zhu ◽  
Longtu Li ◽  
...  
Keyword(s):  
Free Energy ◽  
High Temperature ◽  
Energy Storage ◽  
Energy Density ◽  
State Of The Art ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Multilayer Ceramic Capacitors ◽  
Multilayer Ceramic

AbstractThe growing demand for high-power-density electric and electronic systems has encouraged the development of energy-storage capacitors with attributes such as high energy density, high capacitance density, high voltage and frequency, low weight, high-temperature operability, and environmental friendliness. Compared with their electrolytic and film counterparts, energy-storage multilayer ceramic capacitors (MLCCs) stand out for their extremely low equivalent series resistance and equivalent series inductance, high current handling capability, and high-temperature stability. These characteristics are important for applications including fast-switching third-generation wide-bandgap semiconductors in electric vehicles, 5G base stations, clean energy generation, and smart grids. There have been numerous reports on state-of-the-art MLCC energy-storage solutions. However, lead-free capacitors generally have a low-energy density, and high-energy density capacitors frequently contain lead, which is a key issue that hinders their broad application. In this review, we present perspectives and challenges for lead-free energy-storage MLCCs. Initially, the energy-storage mechanism and device characterization are introduced; then, dielectric ceramics for energy-storage applications with aspects of composition and structural optimization are summarized. Progress on state-of-the-art energy-storage MLCCs is discussed after elaboration of the fabrication process and structural design of the electrode. Emerging applications of energy-storage MLCCs are then discussed in terms of advanced pulsed power sources and high-density power converters from a theoretical and technological point of view. Finally, the challenges and future prospects for industrialization of lab-scale lead-free energy-storage MLCCs are discussed.

High-Temperature Polyimide Dielectric Materials for Energy Storage: Theory, Design, Preparation and Properties

2021 ◽  
Author(s):  
Xue-Jie Liu ◽  
Ming-Sheng Zheng ◽  
George Chen ◽  
Zhi-Min Dang ◽  
Jun-Wei Zha
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Energy Density ◽  
Electric Vehicles ◽  
Operating Temperature ◽  
Dielectric Materials ◽  
High Energy ◽  
High Energy Density ◽  
Temperature Resistance ◽  
Storage Theory

The high operating temperature of dielectric capacitors applied in electric vehicles, aerospace and underground exploration require dielectric materials with high temperature resistance and high energy density. Polyimide (PI) turns out...

High energy density aqueous zinc–benzoquinone batteries enabled by carbon cloth with multiple anchoring effects

2021 ◽  
Author(s):  
Zhiqiang Luo ◽  
Silin Zheng ◽  
Shuo Zhao ◽  
Xin Jiao ◽  
Zongshuai Gong ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Porous Carbon ◽  
Large Scale ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Anchoring Effects ◽  
High Theoretical Capacity ◽  
Energy Storage Applications

Benzoquinone with high theoretical capacity is anchored on N-plasma engraved porous carbon as a desirable cathode for rechargeable aqueous Zn-ion batteries. Such batteries display tremendous potential in large-scale energy storage applications.

scholarly journals Designing high energy density flow batteries by tuning active-material thermodynamics

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5432-5443
Author(s):  
Shyam K. Pahari ◽  
Tugba Ceren Gokoglan ◽  
Benjoe Rey B. Visayas ◽  
Jennifer Woehl ◽  
James A. Golen ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Density ◽  
Fossil Fuels ◽  
Active Material ◽  
High Energy ◽  
Theoretical Framework ◽  
High Energy Density ◽  
Density Flow ◽  
The Cost

With the cost of renewable energy near parity with fossil fuels, energy storage is paramount. We report a breakthrough on a bioinspired NRFB active-material, with greatly improved solubility, and place it in a predictive theoretical framework.

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