Subscribe to our free daily newsletters
  Energy News  




Subscribe to our free daily newsletters



ENERGY TECH
Could a seawater battery help end our dependence on lithium?
by Staff Writers
Washington DC (SPX) Dec 13, 2016


Scientists have developed a battery that uses seawater as the catholyte. Image courtesy American Chemical Society. For a larger version of this image please go here.

With the ubiquity of lithium-ion batteries in smartphones and other rechargeable devices, it's hard to imagine replacing them. But the rising price of lithium has spurred a search for alternatives.

One up-and-coming battery technology uses abundant, readily available seawater. Now, making this option viable is one step closer with a new report on a sodium-air, seawater battery.

The study appears in the journal ACS Applied Materials and Interfaces.

Sodium-air - or sodium-oxygen - batteries are considered one of the most promising, and cost-effective alternatives to today's lithium-ion standby.

But some challenges remain before they can become a commercial reality. Soo Min Hwang, Youngsik Kim and colleagues have been tackling these challenges, using seawater as the catholyte - an electrolyte and cathode combined.

In batteries, the electrolyte is the component that allows an electrical charge to flow between the cathode and anode.

A constant flow of seawater into and out of the battery provides the sodium ions and water responsible for producing a charge.

The reactions have been sluggish, however, so the researchers wanted to find a way to speed them up.

For their new battery, the team prepared a catalyst using porous cobalt manganese oxide nanoparticles.

The pores create a large surface area for encouraging the electrochemical reactions needed to produce a charge.

A hard carbon electrode served as the anode. The resulting battery performed efficiently over 100 cycles with an average discharge voltage of about 2.7 volts.

This doesn't yet measure up to a lithium-ion cell, which can reach 3.6 to 4.0 volts, but the advance is getting close to bridging the gap, the researchers say.


Comment on this article using your Disqus, Facebook, Google or Twitter login.


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

.


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






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

Previous Report
ENERGY TECH
Delivering a power punch
Thuwal, Saudi Arabia (SPX) Dec 06, 2016
Energy storage units that can be integrated into wearable and flexible electronic systems are becoming increasingly important in today's world. A research team from KAUST has now developed a microsupercapacitor that exploits three-dimensional porous electrodes. These micropower units are expected to enable a new generation of "smart"products, such as self-powered sensors for wearables, security, ... read more


ENERGY TECH
Energy-hungry Asia slowing down, lender says

US push to low-carbon future 'unstoppable': Biden

China's Shanghai Electric to invest $9bn in Pakistan upgrades

China power plant collapse kills at least 22: Xinhua

ENERGY TECH
Finger swipe-powered phone? We're 1 step closer

Battery research reaching out to higher voltages

Alternative fuel cell technology reduces cost

Engineers build refrigerator powered by sound waves

ENERGY TECH
Offshore wind makes U.S. debut

Apple invests in China wind farms

German energy company plants wind farm seed in Texas

New York to bid in Federal Offshore Wind Auction

ENERGY TECH
Swiss unveil stratospheric solar plane

New York funds low income access to solar power

Coronal Energy, powered by Panasonic, Announces Solar Acquisition Program

Game changer for organic solar cells

ENERGY TECH
Bulgaria seeks investor to revive nuclear project

Japan switches on nuclear reactor after safety shutdown

Fukushima costs to double to nearly $180 bn: report

'Diamond-age' of power generation as nuclear batteries developed

ENERGY TECH
People willing to pay more for new biofuels

Investing in the 'bioeconomy' could create jobs and reduce carbon emissions

Argonne researchers study how reflectivity of biofuel crops impacts climate

UNIST researchers turn waste gas into road-ready diesel fuel

ENERGY TECH
Chinese missile giant seeks 20% of a satellite market

China-made satellites in high demand

Space exploration plans unveiled

China launches 4th data relay satellite

ENERGY TECH
DiCaprio, Trump discuss green job creation

China: Economic development tied to climate goals

Gore meeting latest sign Trump softening on climate?

World cities seek $375 bn to fight climate change




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