scholarly journals Temperature- and frequency-dependent dielectric response and energy-storage performance in high (100)-oriented Sc doped (Na0.85K0.15)0.5Bi0.5TiO3 films

RSC Advances ◽  
2017 ◽  
Vol 7 (81) ◽  
pp. 51485-51494 ◽  
Author(s):  
Yunyi Wu ◽  
Yonghong Hu ◽  
Xiaohui Wang ◽  
Caifu Zhong ◽  
Longtu Li
Keyword(s):  
Energy Storage ◽  
Dielectric Response ◽  
Frequency Dependent ◽  
Storage Performance

Highly (100)-oriented (Na0.85K0.15)0.5Bi0.5Ti0.75Sc0.25O3 (NKBT-Sc) films with thicknesses ranging from about 460 to 860 nm were grown by utilizing TiO2 layers engineering.

scholarly journals Enhanced energy storage performance and fatigue resistance of Mn-doped 0.7Na0.5Bi0.5TiO3–0.3Sr0.7Bi0.2TiO3 lead-free ferroelectric ceramics

2020 ◽  
pp. 1-10
Author(s):  
Jinbo Wang ◽  
Huiqing Fan
Keyword(s):  
Energy Storage ◽  
Fatigue Resistance ◽  
Dielectric Response ◽  
Lead Free ◽  
Ferroelectric Ceramics ◽  
Relaxor Behavior ◽  
Storage Performance ◽  
Energy Storage Properties ◽  
Mn Doped ◽  
Storage Properties

The validity of Mn element on enhanced energy storage performance and fatigue resistance of Mn-doped 0.7Na0.5Bi0.5TiO3–0.3Sr0.7Bi0.2TiO3 lead-free ferroelectric ceramics (BNT–BST–xMn) is certified by doping. The effects of Mn modification on the dielectric behavior, ferroelectric, energy storage properties, and AC impedance are comprehensively investigated. It is found that the average grain size of the ceramics modified by Mn additions is reduced slightly. Moreover, the relaxor properties are evidently enhanced with the increased Mn content. The AC impedance spectra can even better clarify the dielectric response and relaxor behavior. The results suggest that both of the dielectric response and relaxor behavior are determined by defects especially concentration of the oxygen vacancy. The superior energy storage properties are realized at x = 0.05 with an energy storage density (Wrec) of 1.33 J/cm3 as well as energy storage efficiency (η) of 86.2% at 100 kV/cm, accompanied with a superior thermal stability. BNT–BST–5Mn ceramics can maintain a stable energy storage performance within 106 fatigue cycles, indicating an excellent fatigue resistance.

Effect of SiO 2 additive on dielectric response and energy storage performance of Ba 0.4 Sr 0.6 TiO 3 ceramics

2016 ◽  
Vol 42 (11) ◽  
pp. 12639-12643 ◽  
Author(s):  
Chunli Diao ◽  
Hanxing Liu ◽  
Hua Hao ◽  
Minghe Cao ◽  
Zhonghua Yao
Keyword(s):  
Energy Storage ◽  
Dielectric Response ◽  
Storage Performance

scholarly journals Research Progress toward Room Temperature Sodium Sulfur Batteries: A Review

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1535
Author(s):  
Yanjie Wang ◽  
Yingjie Zhang ◽  
Hongyu Cheng ◽  
Zhicong Ni ◽  
Ying Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Room Temperature ◽  
High Energy ◽  
Safety Performance ◽  
High Energy Density ◽  
Research Progress ◽  
Storage Performance ◽  
Sulfur Battery ◽  
Sodium Sulfur Battery ◽  
Sodium Sulfur

Lithium metal batteries have achieved large-scale application, but still have limitations such as poor safety performance and high cost, and limited lithium resources limit the production of lithium batteries. The construction of these devices is also hampered by limited lithium supplies. Therefore, it is particularly important to find alternative metals for lithium replacement. Sodium has the properties of rich in content, low cost and ability to provide high voltage, which makes it an ideal substitute for lithium. Sulfur-based materials have attributes of high energy density, high theoretical specific capacity and are easily oxidized. They may be used as cathodes matched with sodium anodes to form a sodium-sulfur battery. Traditional sodium-sulfur batteries are used at a temperature of about 300 °C. In order to solve problems associated with flammability, explosiveness and energy loss caused by high-temperature use conditions, most research is now focused on the development of room temperature sodium-sulfur batteries. Regardless of safety performance or energy storage performance, room temperature sodium-sulfur batteries have great potential as next-generation secondary batteries. This article summarizes the working principle and existing problems for room temperature sodium-sulfur battery, and summarizes the methods necessary to solve key scientific problems to improve the comprehensive energy storage performance of sodium-sulfur battery from four aspects: cathode, anode, electrolyte and separator.

A novel relaxor (Bi,Na,Ba)(Ti,Zr)O 3 lead‐free ceramic with high energy storage performance

2021 ◽  
Author(s):  
Muhammad Kashif Bilal ◽  
Jian Wang ◽  
Rabia Bashir ◽  
Huan Liu ◽  
Sana Ullah Asif ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Storage Performance ◽  
Lead Free Ceramic ◽  
High Energy Storage

Microwave-assisted reconstruction of spent graphite and its enhanced energy-storage performance as LIB anodes

2021 ◽  
Vol 24 ◽  
pp. 101098
Author(s):  
Donghui Hou ◽  
Zhenzhen Guo ◽  
Yu Wang ◽  
Xinghui Hou ◽  
Shasha Yi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Microwave Assisted ◽  
Storage Performance

Red phosphorus embedded in TiO2/C nanofibers to enhance the potassium-ion storage performance

Nanoscale ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 6635-6643
Author(s):  
Die Su ◽  
Jing Dai ◽  
Min Yang ◽  
Jiaxing Wen ◽  
Jianping Yang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electronic Conductivity ◽  
Potassium Ion ◽  
Special Structure ◽  
Red Phosphorus ◽  
Storage Performance ◽  
Ion Storage

TiO2-RP/CN was fabricated and found to possess a special structure and an excellent electronic conductivity, and the electrodes show outstanding energy storage in K half/full cells.

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