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 140C Compact Vibration Robust Automotive Aluminum Capacitors

    DigiKey Presents Factory Tomorrow Season 5 Video Series

    Samsung MLCCs Lineup for In-Vehicle Infotainment

    source: Samtec

    Best Practices for Cable Management in High-Speed and High-Density Systems

    Würth Elektronik Unveils Compact Common-Mode Data Lines Chokes

    Bourns Releases TCO 240 Watt USB Mini-Breaker

    Littelfuse Adds 600W Automotive TVS Diodes for High-Energy Transient Protection

    Vishay Releases Harsh Environment Robust DC-Link Film Capacitor

    Bourns Releases Automotive High Creepage and Clearance Transformer

    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

    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

    How to Calculate the Output Capacitor for a Switching Power Supply

    Switched Capacitor Converter Explained

    Understanding Inductor Dot Markings and Their Application in LTspice

    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 140C Compact Vibration Robust Automotive Aluminum Capacitors

    DigiKey Presents Factory Tomorrow Season 5 Video Series

    Samsung MLCCs Lineup for In-Vehicle Infotainment

    source: Samtec

    Best Practices for Cable Management in High-Speed and High-Density Systems

    Würth Elektronik Unveils Compact Common-Mode Data Lines Chokes

    Bourns Releases TCO 240 Watt USB Mini-Breaker

    Littelfuse Adds 600W Automotive TVS Diodes for High-Energy Transient Protection

    Vishay Releases Harsh Environment Robust DC-Link Film Capacitor

    Bourns Releases Automotive High Creepage and Clearance Transformer

    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

    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

    How to Calculate the Output Capacitor for a Switching Power Supply

    Switched Capacitor Converter Explained

    Understanding Inductor Dot Markings and Their Application in LTspice

    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

All-Nanotube Stretchable Supercapacitor With Low Equivalent Series Resistance

30.12.2017
Reading Time: 2 mins read
A A

source: Phys.org news

Currently, research in the domain of flexible and stretchable supercapacitors is focused on adjusting electrodes, as they have the most significant effect on performance. However, the separator materials for such applications remain largely unexplored. Recently, a group of scientists from Skoltech and Aalto University (Finland) proposed a novel method for the fabrication of an all-nanotube stretchable supercapacitor from SWCNTs film electrodes and BNNTs separator.

RelatedPosts

TDK Releases 140C Compact Vibration Robust Automotive Aluminum Capacitors

DigiKey Presents Factory Tomorrow Season 5 Video Series

Samsung MLCCs Lineup for In-Vehicle Infotainment

Besides being dielectric, porous and chemically inert, the separators for stretchable supercapacitors need to withstand bending and stretching without severe structural damages. Materials that are known to meet these requirements include polymers and polymer-based electrolytes. However, despite being inexpensive and nontoxic, such materials show poor wetting with aqueous electrolytes and have problems with mechanical strength. Moreover, their high thickness (0.2 mm) results in high internal resistances of the assembled device. In contrast, boron nitride nanotubes (BNNTs), which were used in this work, is a dielectric nanomaterial that shows high Young’s modulus and tensile strength, and thus considered perfect materials for stretchable separator applications. Another key component of the supercapacitors are electrodes, which have to be highly conductive and mechanically stable. In this study, researchers used carbon nanotube films (CNTs) as such material has a unique pore structure, high specific surface area, low electrical resistivity and high chemical stability, and exceptionally high Young’s modulus of elasticity and tensile strength.

The BNNT separator of only 0.5 µm thickness ensured reliable short circuit protection and low equivalent series resistance (ESR) of the stretchable supercapacitor (SSC). The device, fabricated in a test cell configuration for material characterization retains 96 percent of its initial capacitance after 20 000 charging/discharging cycles with low equivalent series resistance of 4.6 Ω. The stretchable supercapacitor prototype withstands at least 1000 cycles of 50 percent strain with a slight increase in the volumetric capacitance and volumetric power density from 32 mW cm−3 to 40 mW cm−3 after stretching, which is higher than reported before. Moreover, a low resistance of 250 Ω for the as-fabricated stretchable prototype was obtained. The simple fabrication process of such devices can be easily extended, making the all-nanotube stretchable supercapacitors, presented here, promising elements in future wearable devices.

“In this work, we applied thin films of SWCNTs as the electrodes and BNNTs as the separator to fabricate all-nanotube stretchable supercapacitors. We chose to use the SWCNT and BNNT films together due to several important qualities, such as lattice structures, which strengthen the material between the walls of both materials and make it possible to test and characterize the device under mechanical stretching. We also successfully solved the problem of separator thickness and resistance keeping elastic properties of the device,” said Skoltech Ph.D. student Evgenia Gilshteyn, the study’s lead author.

Skoltech Professor Albert Nasibulin added: “The technology of the SSC fabrication is very simple, as it is based on dry deposition transferring and airbrushing techniques. With its stable performance, the device could act as a promising candidate for wearable electronic devices and flexible energy storage systems.”

featured image: Scanning electron image of BNNT separator on top of the SWCNT film electrode, (B) EIS spectra of the as-fabricated supercapacitor (blue) after 1000 stretching cycles under 25% (black) strain, 50% (red) elongation; (C) cyclic voltammetry spectra of as-fabricated SSC device (blue), 25% (black) and 50% (red) strain after 1000 stretching cycles. Credit: Skolkovo Institute of Science and Technology

Related

Recent Posts

TDK Releases 140C Compact Vibration Robust Automotive Aluminum Capacitors

5.9.2025
16

Samsung MLCCs Lineup for In-Vehicle Infotainment

4.9.2025
24

Vishay Releases Harsh Environment Robust DC-Link Film Capacitor

2.9.2025
34

Influence of Tantalum Capacitor Pellets Size on Stability During Oxide Film Formation

29.8.2025
37

Modelithics Release Discrete Components Optimization Article for RF/Microwave Designers

28.8.2025
14

Samsung Extends Capacitance of MLCC 0805 X7T 250V to 100nF

28.8.2025
34

Samsung Releases Ultra–High-Capacitance 4.7uF 2.5V MLCC in 0201 for AI GPU

27.8.2025
44

Non-Linear MLCC Class II Capacitor Measurements Challenges

19.8.2025
69

Researchers Demonstrated HfO Anti-Ferroelectric Flexible Capacitors

19.8.2025
20

High Voltage MLCCs Meeting the Growing Demand for Efficiency in Power Conversion

12.8.2025
208

Upcoming Events

Sep 16
17:00 - 18:00 CEST

EMI Shielding Challenges

Sep 22
September 22 @ 13:00 - September 25 @ 15:15 EDT

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

Sep 30
September 30 @ 12:00 - October 2 @ 14:00 EDT

MIL-Std-883 TM 2010

Oct 17
12:00 - 14:00 EDT

External Visual Inspection per MIL-STD-883 TM 2009

Oct 20
October 20 - October 23

Digital WE Days 2025 – Virtual Conference

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
  • LLC Resonant Converter Design and Calculation

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

    0 shares
    Share 0 Tweet 0
  • What is a Dielectric Constant and DF 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
  • How to Design an Inductor

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

    0 shares
    Share 0 Tweet 0
  • Core Materials, Permeability and Their Losses

    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