• Latest
  • Trending
  • All
  • Capacitors
  • Resistors
  • Inductors
  • Filters
  • Fuses
  • Non-linear Passives
  • Applications
  • Integrated Passives
  • Oscillators
  • Passive Sensors
  • New Technologies
  • Aerospace & Defence
  • Automotive
  • Industrial
  • Market & Supply Chain
  • Medical
  • RF & Microwave
  • Telecommunication
To make the new material, the thin film is first deposited via a pulsed-laser deposition process in this chamber. The bright “plume” you see is the laser hitting the target and depositing the material. (Image courtesy of Lane Martin)

Researchers Demonstrated Ultrahigh Energy Density Ceramic Capacitor

20.8.2020

Rubycon Releases High Capacitance Hybrid Aluminum Capacitors 

25.1.2023

TDK Releases the Most Compact Safety Motor-Run Film Capacitors

24.1.2023

Temperature, Bias and Ageing Impact to Capacitance Stability of MLCC Ceramic Capacitors

24.1.2023

Aluminum Capacitor Technology with Industry Highest Energy Density >5J/cc Available for Acquisition

23.1.2023

Multiphase Buck Trans-Inductor Voltage Regulator (TLVR) Explained

23.1.2023

Cornell Dubilier Announced Aluminum Flatpack Capacitors with High Capacitance Density

23.1.2023
  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About
No Result
View All Result
NEWSLETTER
Passive Components Blog
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication

    Rubycon Releases High Capacitance Hybrid Aluminum Capacitors 

    TDK Releases the Most Compact Safety Motor-Run Film Capacitors

    Temperature, Bias and Ageing Impact to Capacitance Stability of MLCC Ceramic Capacitors

    Aluminum Capacitor Technology with Industry Highest Energy Density >5J/cc Available for Acquisition

    Multiphase Buck Trans-Inductor Voltage Regulator (TLVR) Explained

    Cornell Dubilier Announced Aluminum Flatpack Capacitors with High Capacitance Density

    KEMET Extends 450V Rectangular Aluminum Capacitors to 105°C Temperature Range

    Polysulfates Could Boost Energy Density and Temperature Range of Film Capacitors

    Coilcraft Releases Industry Lowest DCR and Low AC Losses SMD Power Inductors

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Multiphase Buck Trans-Inductor Voltage Regulator (TLVR) Explained

    Smart Power Distribution Unit Architecture and Inductor Losses

    Interleaved Multiphase PWM Converters Explained

    A Pitfall of Transformer-Based Isolated DC-DC Converter

    Leakage Models of Multi-Winding Transformer in LLC Converter

    LLC Transformer Design for Power Converters

    Printed Resistors in a High Performance PCB System

    Transformer Characteristics Explained

    Variable Controlled Inductor in LLC Converter Application Example

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication

    Rubycon Releases High Capacitance Hybrid Aluminum Capacitors 

    TDK Releases the Most Compact Safety Motor-Run Film Capacitors

    Temperature, Bias and Ageing Impact to Capacitance Stability of MLCC Ceramic Capacitors

    Aluminum Capacitor Technology with Industry Highest Energy Density >5J/cc Available for Acquisition

    Multiphase Buck Trans-Inductor Voltage Regulator (TLVR) Explained

    Cornell Dubilier Announced Aluminum Flatpack Capacitors with High Capacitance Density

    KEMET Extends 450V Rectangular Aluminum Capacitors to 105°C Temperature Range

    Polysulfates Could Boost Energy Density and Temperature Range of Film Capacitors

    Coilcraft Releases Industry Lowest DCR and Low AC Losses SMD Power Inductors

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Multiphase Buck Trans-Inductor Voltage Regulator (TLVR) Explained

    Smart Power Distribution Unit Architecture and Inductor Losses

    Interleaved Multiphase PWM Converters Explained

    A Pitfall of Transformer-Based Isolated DC-DC Converter

    Leakage Models of Multi-Winding Transformer in LLC Converter

    LLC Transformer Design for Power Converters

    Printed Resistors in a High Performance PCB System

    Transformer Characteristics Explained

    Variable Controlled Inductor in LLC Converter Application Example

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Researchers Demonstrated Ultrahigh Energy Density Ceramic Capacitor

20.8.2020
Reading Time: 4 mins read
0 0
To make the new material, the thin film is first deposited via a pulsed-laser deposition process in this chamber. The bright “plume” you see is the laser hitting the target and depositing the material. (Image courtesy of Lane Martin)

To make the new material, the thin film is first deposited via a pulsed-laser deposition process in this chamber. The bright “plume” you see is the laser hitting the target and depositing the material. (Image courtesy of Lane Martin)

0
SHARES
204
VIEWS

By introducing defects to a common ceramic material, Berkeley Lab researchers create a highly efficient capacitor with dramatically increased energy density.

Capacitors that rapidly store and release electric energy are key components in modern electronics and power systems. However, the most commonly used ones have low energy densities compared to other storage systems like batteries or fuel cells, which in turn cannot discharge and recharge rapidly without sustaining damage.

RelatedPosts

Rubycon Releases High Capacitance Hybrid Aluminum Capacitors 

TDK Releases the Most Compact Safety Motor-Run Film Capacitors

Temperature, Bias and Ageing Impact to Capacitance Stability of MLCC Ceramic Capacitors

Now, as reported in the journal Science, researchers have found the best of both worlds. By introducing isolated defects to a type of commercially available thin film in a straightforward post-processing step, a team led by researchers at the Department of Energy’s (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab) has demonstrated that a common material can be processed into a top-performing energy storage material.

The research is supported by the Materials Project, an open-access online database that virtually delivers the largest collection of materials properties to scientists around the globe. Today, the Materials Project combines both computational and experimental efforts to, among other goals, accelerate the design of new functional materials. This includes understanding ways to manipulate known materials in ways that improve their performance.

Growing requirements for cost reduction and device miniaturization have driven a push toward development of high energy density capacitors. Capacitors are commonly used in electronic devices to maintain power supply while a battery is being charged.  The new material developed at Berkeley Lab could ultimately combine the efficiency, reliability, and robustness of capacitors with the energy storage capabilities of larger-scale batteries.  Applications include personal electronic devices, wearable technology, and car audio systems.

The material is based on a so-called “relaxor ferroelectric,” which is a ceramic material that undergoes a rapid mechanical or electronic response to an external electric field and is commonly used as a capacitor in applications like ultrasonics, pressure sensors, and voltage generators.

The applied field drives changes in the orientation of the electrons in the material. At the same time, the field drives a change in the energy stored in the materials, making them a good candidate for use beyond a small-scale capacitor. The problem to solve is how to optimize the ferroelectric so that it can be charged to high voltages and discharged very rapidly – billions of times or more – without sustaining damage that would render it unsuitable for long-term use in applications such as computers and vehicles.

Lane Martin and Jieun Kim have demonstrated that a common material can be processed into a top-performing energy storage material.

Researchers in the lab of Lane Martin, a faculty scientist in the Materials Sciences Division (MSD) at Berkeley Lab and professor of materials science and engineering at UC Berkeley, accomplished this by introducing local defects that allowed it to withstand bigger voltages.

“You’ve probably experienced relaxor ferroelectrics on a gas grill. The button that lights the grill operates a spring-loaded hammer that smacks a piezoelectric crystal, which is a type of relaxor, and creates a voltage that ignites the gas,” explained Martin. “We’ve demonstrated that they can also be made into some of the best materials for energy-storage applications as well.”

Placing a ferroelectric material between two electrodes and increasing the electric field causes charge to build up. During discharge, the amount of energy available depends on how strongly the material’s electrons orient, or become polarized, in response to the electric field. However, most such materials typically cannot withstand a large electric field before the material fails. The fundamental challenge, therefore, is to find a way to increase the maximum possible electric field without sacrificing the polarization.

The researchers turned to an approach that they had previously developed to “turn off” conductivity in a material. By bombarding a thin film with high-energy charged particles known as ions, they were able to introduce isolated defects. The defects trap the material’s electrons, preventing their motion and decreasing the film’s conductivity by orders of magnitude.

“In ferroelectrics, which are supposed to be insulators, having charge that leaks through them is a major issue. By bombarding ferroelectrics with beams of high-energy ions, we knew we could make them better insulators,” said Jieun Kim, a doctoral researcher in Martin’s group and lead author on the paper. “We then asked, could we use this same approach to make a relaxor ferroelectric withstand bigger voltages and electric fields before it catastrophically fails?”

The answer turned out to be “yes.” Kim first fabricated thin films of a prototypical relaxor ferroelectric called lead magnesium niobite–lead titanate. Then, he targeted the films with high-energy helium ions at the Ion-Beam Analysis Facility operated by the Accelerator Technology and Applied Physics (ATAP) Division at Berkeley Lab. The helium ions knocked target ions from their sites to create point defects. Measurements showed that the ion-bombarded film had more than twice the energy storage density of previously reported values and 50% higher efficiencies.

“We were originally expecting the effects to be mostly from reducing the leakage with isolated point defects. However, we realized that the shift in the polarization-electric field relationship due to some of those defects was equally important,” said Martin. “This shift means that it takes larger and larger applied voltages to create the maximum change in polarization.” The result suggests that ion bombardment can help to overcome the trade-off between being highly polarizable and easily breakable.

The same ion beam approach could also improve other dielectric materials to improve energy storage, and provides researchers with a tool to repair problems in already-synthesized materials. “It would be great to see folks use these ion-beam approaches to ‘heal’ materials in devices after the fact if their synthesis or production process didn’t go perfectly,” said Kim.

This research was supported by the DOE Office of Science and grants from the National Science Foundation.

Source: Berkeley Lab

Related Posts

Capacitors

Rubycon Releases High Capacitance Hybrid Aluminum Capacitors 

25.1.2023
22
Capacitors

TDK Releases the Most Compact Safety Motor-Run Film Capacitors

24.1.2023
16
Capacitors

Temperature, Bias and Ageing Impact to Capacitance Stability of MLCC Ceramic Capacitors

24.1.2023
26

Upcoming Events

Feb 8
11:00 - 12:00 CET

How Does Your PCB Layout Influence the Costs in PCB Manufacturing? Würth Elektronik Webinar

Feb 27
February 27 @ 12:00 - March 2 @ 14:00 EST

Pre Cap Visual Inspection per Mil-Std-883 (TM 2017)

Mar 3
12:00 - 14:00 EST

External Visual Inspection per Mil-Std-883 TM 2009

View Calendar

Popular Posts

  • What is a Dielectric Constant of Plastic Materials ?

    4 shares
    Share 4 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • Capacitor Selection for Coupling and Decoupling Applications

    28 shares
    Share 28 Tweet 0
  • Understanding High-Precision Resistor Temperature Coefficient of Resistance

    0 shares
    Share 0 Tweet 0
  • Why Low ESR Matters in Capacitor Design

    0 shares
    Share 0 Tweet 0
  • Dielectric Constant and its Effects on the Properties of a Capacitor

    7 shares
    Share 7 Tweet 0
  • How to Choose the Right Inductor for DC-DC Buck Applications

    0 shares
    Share 0 Tweet 0
  • Leakage Current Characteristics of Capacitors

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Archive

2022
2021
2020
2019
2018
2017

Symposium

Passive Components Networking Symposium

Passives e-Learning

Knowledge Blog

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

© EPCI - Premium Passive Components Educational and Information Site

No Result
View All Result
  • Home
  • News
  • Video
  • Knowledge Blog
  • Preferred Suppliers
  • Events

© EPCI - Premium Passive Components Educational and Information Site

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.