* . *
  • Tech News
    Nikon’s Z5 II is the cheapest full-frame camera yet with internal RAW video

    Nikon’s Z5 II is the cheapest full-frame camera yet with internal RAW video

    The Morning After: Let’s talk Switch 2 pricing

    The Morning After: Let’s talk Switch 2 pricing

    Amazon’s ‘Buy for Me’ AI will purchase stuff from third-party websites

    Amazon’s ‘Buy for Me’ AI will purchase stuff from third-party websites

    Vibe coding at enterprise scale: AI tools now tackle the full development lifecycle

    Vibe coding at enterprise scale: AI tools now tackle the full development lifecycle

  • Reviews
  • Noteworthy
  • Science
  • Opinions
  • Applications
  • Blockchain
    Gain an edge with DTX’s groundbreaking Hybrid Blockchain: Presale now open for LINK and XRP Traders

    Gain an edge with DTX’s groundbreaking Hybrid Blockchain: Presale now open for LINK and XRP Traders

    Unraveling the Mystery: What Exactly is Blockchain Technology?

    Unraveling the Mystery: What Exactly is Blockchain Technology?

    Revolutionary Gasless Blockchain Gaming Partnership Between Atari Founder’s New Firm and Skale Labs

    Discover the Exciting Outcome of a Blockchain Experiment: Decentralized Learning Robots Swarm to Success

    Unleashing a Swarm of Decentralized Learning Robots: The Surprising Results of Blockchain Experiment

    Vishvasya: Revolutionizing Citizen-Centric Apps with National Blockchain Framework for Enhanced Security and Transparency

    Vishvasya: Revolutionizing Citizen-Centric Apps with National Blockchain Framework for Enhanced Security and Transparency

  • Applications
  • Culture
  • Deals
  • Events
  • How-to
  • Roundups
  • Startups
Sunday, June 1, 2025
No Result
View All Result
Tech News, Magazine & Review WordPress Theme 2017
  • Contact Us
  • Legal
    • Privacy Policy
    • Terms of Use
    • DMCA
    • Cookie Privacy Policy
    • California Consumer Privacy Act (CCPA)
  • Tech News
    Nikon’s Z5 II is the cheapest full-frame camera yet with internal RAW video

    Nikon’s Z5 II is the cheapest full-frame camera yet with internal RAW video

    The Morning After: Let’s talk Switch 2 pricing

    The Morning After: Let’s talk Switch 2 pricing

    Amazon’s ‘Buy for Me’ AI will purchase stuff from third-party websites

    Amazon’s ‘Buy for Me’ AI will purchase stuff from third-party websites

    Vibe coding at enterprise scale: AI tools now tackle the full development lifecycle

    Vibe coding at enterprise scale: AI tools now tackle the full development lifecycle

  • Reviews
  • Noteworthy
  • Science
  • Opinions
  • Applications
  • Blockchain
    Gain an edge with DTX’s groundbreaking Hybrid Blockchain: Presale now open for LINK and XRP Traders

    Gain an edge with DTX’s groundbreaking Hybrid Blockchain: Presale now open for LINK and XRP Traders

    Unraveling the Mystery: What Exactly is Blockchain Technology?

    Unraveling the Mystery: What Exactly is Blockchain Technology?

    Revolutionary Gasless Blockchain Gaming Partnership Between Atari Founder’s New Firm and Skale Labs

    Discover the Exciting Outcome of a Blockchain Experiment: Decentralized Learning Robots Swarm to Success

    Unleashing a Swarm of Decentralized Learning Robots: The Surprising Results of Blockchain Experiment

    Vishvasya: Revolutionizing Citizen-Centric Apps with National Blockchain Framework for Enhanced Security and Transparency

    Vishvasya: Revolutionizing Citizen-Centric Apps with National Blockchain Framework for Enhanced Security and Transparency

  • Applications
  • Culture
  • Deals
  • Events
  • How-to
  • Roundups
  • Startups
No Result
View All Result
Tech News
No Result
View All Result

Dangerous by design: Runaway miniature battery makes safety testing more accessible and affordable

April 4, 2025
in Green Technology
Home Green Technology

Our mission is to provide unbiased product reviews and timely reporting of technological advancements. Covering all latest reviews and advances in the technology industry, our editorial team strives to make every click count. We aim to provide fair and unbiased information about the latest technological advances.
Share on FacebookShare on Twitter

Runaway battery improves safety: Dangerous miniature battery makes safety testing more accessible and affordable

Detection of battery thermal runaway. Credit: Nature Energy (2025). https://doi.org/10.1038/s41560-025-01751-7

Overheating batteries are a serious risk, in the worst cases leading to fires and explosion. A team including researchers from the University of Tokyo has developed a simple, cost-effective method to test the safety of lithium-ion batteries, which opens up opportunities for research into new and safer batteries for the future. The work is publishedNature Energy.

The researchers created an intentionally unstable battery which is more sensitive to changes that could cause overheating. The battery is one-50th the size of conventional batteries, so it is less resource-intensive and tests can be carried out in a smaller lab environment.

When batteries are subjected to unusual conditions, such as high temperatures, thermal shock, penetration, crushing, dropping, or vibration, chemical chain reactions can be triggered, causing the battery to heat up at an alarming rate (potentially up to several thousand degrees per minute).

This phenomenon, known as thermal runaway, can ultimately lead to a catastrophic fire or explosion. To minimize the risk of thermal runaway, various testing methods have been suggested. Among them, the accelerating rate calorimetry (ARC) test provides quantitative data, including the onset temperature of battery self-heating and thermal runaway, and the related heat generation. However, this testing is dangerous and costly.

“Current safety testing methods depend on large-capacity, commercial-scale batteries, which require substantial material resources, complex manufacturing processes and stringent explosion-proof standards,” explained Professor Atsuo Yamada from the Graduate School of Engineering.

“This renders thermal runaway testing inaccessible for most academic and research institutions, significantly limiting the development of safer and more advanced next-generation batteries.”

To overcome this limitation, a team from the University of Tokyo and Japan’s National Institute for Materials Science has developed an innovative method to evaluate thermal runaway by designing a mini-battery intentionally more prone to thermal runaway (and therefore more dangerous).

They also created a simple equation, which incorporates data on battery heat accumulation and dissipation, so they could calculate what they termed the thermal runaway factor (TRF).

“Developing a battery that was intentionally dangerous was the key. According to TRF, batteries generate more heat with higher energy, higher volume-to-surface area (V/S) ratios and lower specific heat capacities (the amount of heat required to raise the temperature of one gram of the battery by one degree Celsius) of their materials,” explained Yamada.

“Since increasing battery capacity wasn’t feasible for small-scale tests, we focused on reducing the heat-release capability by increasing the V/S ratio, minimizing the use of high specific heat capacity materials and removing nonheat-generating components like the external battery case.”

At just one-50th the size of conventional batteries, this strategic design significantly reduces the raw materials needed for ARC testing, while enhancing the detection sensitivity of thermal runaway. Its compact size allows for controlled, small-scale testing in a lab, minimizing risk even in the event of thermal runaway.

“We found that applying our method makes it possible to quickly and precisely screen the effects of various factors related to battery safety, such as the battery’s constituent materials, design factors, storage conditions and degree of deterioration,” said Yamada.

“This enables rapid safety screening and early-stage feedback for battery design, and can be used by researchers and manufacturers striving to enhance battery safety. Ultimately, we hope it will accelerate the transition to a carbon-neutral society.”

More information:
Seongjae Ko et al, Rapid safety screening realized by accelerating rate calorimetry with lab-scale small batteries. Nature Energy (2025). DOI: 10.1038/s41560-025-01751-7. www.nature.com/articles/s41560-025-01751-7

Provided by
University of Tokyo

ADVERTISEMENT

Citation:
Dangerous by design: Runaway miniature battery makes safety testing more accessible and affordable (2025, April 3)
retrieved 4 April 2025
from https://techxplore.com/news/2025-04-dangerous-runaway-miniature-battery-safety.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

Tags: accessibleaffordableBatterydangerousdesignMiniatureRunawaysafetytesting

Denial of responsibility! tech-news.info is an automatic aggregator around the global media. All the content are available free on Internet. We have just arranged it in one platform for educational purpose only. In each content, the hyperlink to the primary source is specified. All trademarks belong to their rightful owners, all materials to their authors. If you are the owner of the content and do not want us to publish your materials on our website, please contact us by email – abuse@tech-news.info. The content will be deleted within 24 hours.
Previous Post

More Apple chips could be made in US thanks to TSMC & Intel joint venture

Next Post

Apple Supplier TSMC May Operate Intel’s Chipmaking Facilities

RelatedPosts

Mechanistic understanding could enable better fast-charging batteries
Green Technology

Mechanistic understanding could enable better fast-charging batteries

April 5, 2025
Charging electric vehicles 5x faster in subfreezing temps
Green Technology

Charging electric vehicles 5x faster in subfreezing temps

April 5, 2025
Despite Tesla Dip, Australia Over 14% Plugin Penetration – CleanTechnica
Green Technology

Despite Tesla Dip, Australia Over 14% Plugin Penetration – CleanTechnica

April 5, 2025
New York Vs. Tesla — The Grudge Match Is ON! – CleanTechnica
Green Technology

New York Vs. Tesla — The Grudge Match Is ON! – CleanTechnica

April 5, 2025
ADVERTISEMENT
Galaxy Ring wireless charging upgrade could ditch the case – Phandroid

Galaxy Ring wireless charging upgrade could ditch the case – Phandroid

April 5, 2025

Nikon’s Z5 II is the cheapest full-frame camera yet with internal RAW video

April 5, 2025

Mechanistic understanding could enable better fast-charging batteries

April 5, 2025

Apple users are ditching the AirTag for this $30 alternative… but why?

April 5, 2025

Grab the 2nd Gen Google Nest for Less than 100 Bucks! – Phandroid

April 5, 2025

How to use the new, easier Guest Mode on Vision Pro

April 5, 2025

The Morning After: Let’s talk Switch 2 pricing

April 5, 2025

Charging electric vehicles 5x faster in subfreezing temps

April 5, 2025

Deals: Moto Edge 60 Fusion and Pixel 9a arrive, iPhone 16  and 15 series are £100 off

April 5, 2025

iPhones Could Cost Up to $2,300 in the U.S. Due to Tariffs, Analyst Says

April 5, 2025

Categories

Select Category

    Archives

    Select Month
      June 2025
      MTWTFSS
       1
      2345678
      9101112131415
      16171819202122
      23242526272829
      30 
      « Apr    
      • California Consumer Privacy Act (CCPA)
      • Contact Us
      • Cookie Privacy Policy
      • DMCA
      • Privacy Policy
      • Tech News
      • Terms of Use

      © 2015-2024 Tech-News.info
      DMCA.com Protection Status

      No Result
      View All Result
      • California Consumer Privacy Act (CCPA)
      • Contact Us
      • Cookie Privacy Policy
      • DMCA
      • Privacy Policy
      • Tech News
      • Terms of Use

      © 2015-2024 Tech-News.info
      DMCA.com Protection Status

      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