Lead-Free Ceramics with High Energy Density and Reduced Losses for High Temperature Applications

2017 ◽  
Vol 19 (6) ◽  
pp. 1700019 ◽  
Author(s):  
Tatiana Correia ◽  
Mark Stewart ◽  
Angela Ellmore ◽  
Knuth Albertsen
Keyword(s):  
High Temperature ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Lead Free Ceramics ◽  
Temperature Applications

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.

scholarly journals (Bi0.51 Na0.47)TiO3 based lead free ceramics with high energy density and efficiency

2019 ◽  
Vol 5 (3) ◽  
pp. 385-393 ◽  
Author(s):  
Yu Huang ◽  
Fei Li ◽  
Hua Hao ◽  
Fangquan Xia ◽  
Hanxing Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Lead Free Ceramics

Significantly enhanced energy storage performance of flexible composites using sodium bismuth titanate based lead-free fillers

2020 ◽  
Vol 8 (42) ◽  
pp. 14910-14918
Author(s):  
Pingan Yang ◽  
Lili Li ◽  
Hongbin Yuan ◽  
Fei Wen ◽  
Peng Zheng ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Bismuth Titanate ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Sodium Bismuth Titanate ◽  
Flexible Composites ◽  
Storage Performance

A new lead-free antiferroelectric ceramic NBT–SBT was introduced into PVDF polymer to fabricate composites films, achieving record-high energy density of 15.3 J cm−3 at 500 MV m−1 and meeting the requirement of miniaturization and lightweight device.

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