Subscribe free to our newsletters via your
  Energy News  




Subscribe free to our newsletters via your




















ENERGY TECH
Liquified gas electrolytes power new lower-temperature battery
by Brooks Hays
Washington (UPI) Jun 16, 2017


Scientists at the University of California, San Diego have developed new electrolytes capable of powering batteries at temperatures as low as negative 80 degrees Celsius.

The technology could help make lithium ion batteries safer and more efficient, as well as boost the range of electric vehicles during cold winter months. The new batteries could also power vehicles and instruments operating in extreme cold, like space rovers, satellites and high-alitiude weather baloons.

The electrolytes are composed of liquefied gas solvents. Many gases require extreme pressure to liquify. Gases that liquify at moderate pressures are less apt to freeze.

To create their battery's electrolyte, researchers liquified fluoromethane gas. For the capacitor electrolyte, scientists liquified difluoromethane gas.

"Better batteries are needed to make electric cars with improved performance-to-cost ratios," Shirley Meng, a nanoengineering professor at UCSD, said in a news release. "And once the temperature range for batteries, ultra-capacitors and their hybrids is widened, these electrochemical energy storage technologies can be adopted in many more emerging markets."

Electrolytes have been identified as one the main barriers inhibiting efficiency improvements in lithium ion battery technology. Many researchers have abandoned liquid electrolytes in favor of battery model using solid state electrolytes.

"We have taken the opposite, albeit risky, approach and explored the use of gas based electrolytes," said Cyrus Rustomji, a postdoctoral researcher at UCSD.

Aside from efficiency, one of the biggest problems with lithium ion batteries is their tendency to catch on fire. When electrolytes overheat, they can trigger a chemical chain reaction that generates extreme temperatures inside the battery. The liquified gas electrolytes limit this risk, ensuring internal temperatures remain moderate.

The electrolyte works like an emergency off switch.

"As soon as the battery gets too hot, it shuts down. But as it cools back down, it starts working again," Rustomji said. "That's uncommon in conventional batteries."

Additionally, the electrolyte's unique chemical makeup prevent the build up of lithium metal on the battery's electrodes. Inside commercial lithium ion batteries, lithium deposits called dendrites can grow like tiny stalagmites, eventually piercing battery components and causing the circuitry to short out.

Researchers hope to continue improving their battery's efficiency and low-temperature abilities. They detailed their most recent electrolyte breakthrough in the journal Science.

ENERGY TECH
Battery improvements spark HEV EV market breakthrough
Berlin, Germany (SPX) Jun 20, 2017
Advances in battery technology are challenging automakers and their suppliers to meet higher market demand for hybrid and electric vehicles without compromising quality. 2017 marks the 20th anniversary of the Toyota Prius, the world's first widely-available hybrid electric vehicle (HEV). Since then more than 12 million HEVs have been sold around the world. Yet sales of HEVs and their full-electr ... read more

Related Links
Powering The World in the 21st Century at Energy-Daily.com

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

ENERGY TECH
Low-carbon trajectory is the only option, European leaders say

Divestment streak continues for British energy company Centrica

New ultrathin material for splitting water could make hydrogen production cheaper

Keeping the hydrogen coming

ENERGY TECH
Making hydrogen fuel from humid air

Clean energy stored in electric vehicles to power buildings

Battery improvements spark HEV EV market breakthrough

Batteries from scrap metal

ENERGY TECH
It's a breeze: How to harness the power of the wind

ADB: Asia-Pacific growth tied to renewables

GE Energy Financial Services Surpasses $15 Billion in Renewable Energy Investments

U.S. states taking up wind energy mantle

ENERGY TECH
Photopower for microlabs

Urban Solar lands UL approval for entire product line

Solar paint offers endless energy from water vapor

New technology will enable properties to share solar energy

ENERGY TECH
S. Korea to scrap all plans to build new nuclear reactors

Russia sells stake in Akkuyu nuclear plant project in Turkey

Japan court clears way for nuclear reactor restarts

AREVA-EWN consortium to dismantle the Reactor Pressure Vessel at Brunsbuttel

ENERGY TECH
Scientists make plastic from sugar and carbon dioxide

Turning car plastics into foams with coconut oil

Scientists use new technique to recycle plant material into stock chemicals

Splitting carbon dioxide using low-cost catalyst materials

ENERGY TECH
Iraq's Abadi visits Saudi ahead of Iran stop

British North Sea target of new drilling plans

Russia claims new oil field discovered in the Arctic

Only faint traces of oil found in North Sea effort

ENERGY TECH
World Bank: Middle East conflicts impede climate and other objectives

NASA-MIT Study Evaluates Efficiency of Oceans as Heat Sink, Atmospheric Gases Sponge

France pledges $34 mln for foreign climate experts

Understanding multi-decadal global warming rate changes




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement