Passive Components Blog
No Result
View All Result
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

    YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

    YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

    Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

    Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

    Vishay Expands Automotive High Frequency Thin Film Chip Resistors

    Advancements and Applications of Switch Capacitor Power Converters

    KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    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
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    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
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

    YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

    YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

    Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

    Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

    Vishay Expands Automotive High Frequency Thin Film Chip Resistors

    Advancements and Applications of Switch Capacitor Power Converters

    KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    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
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    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
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

High Density Carbon Tube Filter Capacitor

7.8.2024
Reading Time: 3 mins read
A A

A research team led by Prof. MENG Guowen and Prof. HAN Fangming from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS), along with Prof. WEI Bingqing from the University of Delaware and Prof. LI Xiaoyan from Tsinghua University, constructed high-density three-dimensional carbon tube nanoarray electrodes for use in line-filtering capacitors, showcasing immense potential as high-performance miniaturized filter devices.

The research results were published in Nano-Micro Letters recently.

RelatedPosts

TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

Filter capacitors are essential for turning fluctuating voltage signals into steady direct current. Aluminum electrolytic capacitors (AECs) are commonly used but are quite large and have limited capacitance, which makes it hard to shrink modern electronics. Electric double-layer supercapacitors (EDLCs) have much higher energy density, making them a promising alternative for smaller filter capacitor applications. However, traditional carbon-based EDLCs have slow ion transport, making it difficult for them to achieve both high energy density and quick frequency response needed for line-filtering.

In this research, they conducted a systematic study aimed at precisely manipulating the pore structure of three-dimensional interconnected porous anodized aluminum oxide (3D-AAO) templates. They achieved a remarkable feat by continuously tuning the vertical pore diameter of 3D-AAO from 70 to 250 nm and the inter-pore spacing from 100 to 450 nm. Leveraging these tunable templates, they fabricated 3D compactly arranged carbon tube (3D-CACT) nanoarray electrodes via chemical vapor deposition. Specific surface area tests revealed that reducing both the pore diameter and inter-spacing significantly augmented the electrode’s surface area.

The resultant 3D-CACT electrode-based device exhibited exceptional frequency response performance characterized by a phase angle of -80.2° at 120 Hz, an ultra-low equivalent series resistance of less than 0.07 Ω cm2, and a rapid resistance-capacitance time constant of 0.25 ms. Notably, its specific areal capacitance at 120 Hz reached 3.23 mF cm-2, far surpassing that of commercial AECs (~0.08 mF cm-2) and previously reported aqueous sandwich-type line-filtering EDLCs. This underscores the 3D-CACT nanoarray’s ability to facilitate efficient ion transport and offer abundant charge adsorption sites.

Furthermore, researchers demonstrated the scalability of their approach by connecting six and ten sets of identical 3D-CACT-based EDLCs in series, successfully extending the capacitors’ operating voltage while preserving their rapid frequency response and low loss characteristics. To showcase the practicality of their invention, they employed ten series-connected devices as filters, effectively converting various alternating current inputs (including sinusoidal, square, triangular, noisy waves, and pulsed signals from a rotating triboelectric nanogenerator) into smooth direct current signals, with filtering performance comparable to commercial AECs.

“The high-density 3D-CT nanoarray electrodes offer promising solutions for high-performance filter capacitors, advancing miniaturized power systems and electronics,” said Prof. MENG, “and the structure-tunable template-assisted method enables the size customization of nanomaterials and promote innovative integrable microdevices development.”

Read the original article:

High Density 3D Carbon Tube Nanoarray Electrode Boosting the Capacitance of Filter Capacitor, DOI: 10.1007/s40820-024-01458-6 

Source: Nano-Micro Letters Journal

Recent Posts

TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

27.6.2025
5

YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

27.6.2025
3

Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

26.6.2025
29

Advancements and Applications of Switch Capacitor Power Converters

25.6.2025
22

Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

24.6.2025
14

Samsung Delivers Silicon Capacitors to Marwell AI Systems

24.6.2025
30

Smolteks CNF MIM Capacitor Break 1 µF/mm²

19.6.2025
34

Samsung Electro-Mechanics Releases 0201 X7T 1uF 6.3V MLCC for ADAS Applications

19.6.2025
20

Advanced Conversion Announces Mass Production of 200C Film Capacitors

18.6.2025
31

VinaTech Supercapacitors: Enhancing Smart Meter Reliability and Efficiency

17.6.2025
24

Upcoming Events

Jul 23
13:00 - 14:00 CEST

PCB design for a Smartwatch

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0
  • LLC Resonant Converter Design and Calculation

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

    3 shares
    Share 3 Tweet 0
  • How to Design an Inductor

    0 shares
    Share 0 Tweet 0
  • Dual Active Bridge (DAB) Topology Explained

    0 shares
    Share 0 Tweet 0
  • SEPIC Converter Design and Calculation

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

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© EPCI - Leading Passive Components Educational and Information Site

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

No Result
View All Result
  • Home
  • Knowledge Blog
  • Premium Suppliers

© EPCI - Leading Passive Components Educational and Information Site

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