Subscribe to our free daily newsletters
  Energy News  




Subscribe to our free daily newsletters



ENERGY TECH
NRL breakthrough enables safer alternative to lithium-ion batteries
by Staff Writers
Washington DC (SPX) May 05, 2017


illustration only

Researchers at the U.S. Naval Research Laboratory's (NRL) Chemistry Division have developed a safer alternative to fire-prone lithium-ion batteries, which were recently banned for some applications on Navy ships and other military platforms.

Joseph Parker, Jeffrey Long, and Debra Rolison from NRL's Advanced Electrochemical Materials group are leading an effort to create an entire family of safer, water-based, zinc batteries.

They have demonstrated a breakthrough for nickel-zinc (Ni-Zn) batteries in which a three-dimensional (3-D) Zn "sponge" replaces the powdered zinc anode traditionally used. With 3-D Zn, the battery provides an energy content and rechargeability that rival lithium-ion batteries while avoiding the safety issues that continue to plague lithium.

Their research appears in the April 28th, 2017 issue of Science, the premiere journal of the American Association for the Advancement of Science. Additional contributors to this research article include former NRL staff scientist, Christopher Chervin, National Research Council postdoctoral associate, Irina Pala, as well as industry partners Meinrad Machler and CEO of EnZinc, Inc., Michael Burz.

"Our team at the NRL pioneered the architectural approach to the redesign of electrodes for next-generation energy storage," said Dr. Rolison, senior scientist and principal investigator on the project. "The 3-D sponge form factor allows us to reimagine zinc, a well-known battery material, for the 21st century."

Zinc-based batteries are the go-to global battery for single-use applications, but are not considered rechargeable in practice due to their tendency to grow conductive whiskers (dendrites) inside the battery, which can grow long enough to cause short circuits.

"The key to realizing rechargeable zinc-based batteries lies in controlling the behavior of the zinc during cycling," said Parker, lead author on the paper. "Electric currents are more uniformly distributed within the sponge, making it physically difficult to form dendrites."

The NRL team demonstrated Ni-3-D Zn performance in three ways: extending lifetime in single-use cells; cycling cells more than 100 times at an energy content competitive with lithium-ion batteries; and cycling cells more than 50,000 times in short duty-cycles with intermittent power bursts, similar to how batteries are used in some hybrid vehicles.

With the benefits of rechargeability, the 3-D Zn sponge is ready to be deployed within the entire family of Zn-based alkaline batteries across the civilian and military sectors.

"We can now offer an energy-relevant alternative, from drop-in replacements for lithium-ion to new opportunities in portable and wearable power, and manned and unmanned electric vehicles," said Dr. Long, "while reducing safety hazards, easing transportation restrictions, and using earth-abundant materials."

Research paper

ENERGY TECH
New breakthrough in battery charging technology
Ulsan, South Korea (SPX) May 03, 2017
A team of researchers, affiliated with UNIST has developed a single-unit, photo-rechargeable portable power source based on high-efficiency silicon solar cells and lithium-ion batteries (LIBs). This newly-developed power source is designed to work under sunlight and indoor lighting, allowing users to power their portable electronics anywhere with access to light. In addition, the new device coul ... read more

Related Links
Naval Research Laboratory
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
Myanmar recovery linked to development of electrical grid

U.S. emissions generally lower last year

World Bank urges more investment for developing global electricity

US states begin legal action on Trump energy delay

ENERGY TECH
NRL breakthrough enables safer alternative to lithium-ion batteries

Graphane could act as efficient and water-free hydrogen fuel cell membrane

Super P carbon black for reversible lithium and sodium ion storage

Revolutionary method reveals impact of short circuits on battery safety

ENERGY TECH
Dutch open 'world's largest offshore' wind farm

Scientists track porpoises to assess impact of offshore wind farms

OX2 will manage a 45 MW wind farm owned by IKEA Group in Lithuania

Building Energy celebrates the beginning of operations and electricity generation of its first wind farm

ENERGY TECH
First test flight of stratospheric solar plane

New device turns dirty air into energy

Discovery of new transparent thin film material could improve electronics and solar cells

How photosynthetic cells deal with a lack of iron

ENERGY TECH
Plutonium research to aid nuclear cleanup techniques

EU Plans to Hand Over Control of Euratom Nuclear Waste on UK Soil to London

UAE delays launch of first nuclear reactor until 2018

Tunnel collapses at US nuke site, no radiation leak

ENERGY TECH
Biomass powering U.S. military base

First EPA-approved outdoor field trial for genetically engineered algae

Sandia could help biofuel pay for itself with goods made from waste

Turning chicken poop and weeds into biofuel

ENERGY TECH
Oil prices inch lower as market sentiment turns bearish

Austria anticipating fluid financial exchanges with Iran

An Arctic oil spill is a security concern, U.S. says

U.S. motorists win in weak oil market

ENERGY TECH
Climate instability over the past 720,000 years

Ice cave in Transylvania yields window into region's past

Cities brace for climate challenges

Fiji urges Trump to honour Paris climate deal




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