The World's #1 Renewable Energy Network for News, Information, and Companies.
Untitled Document

Sweet Science: Researcher Develops Energy-dense Sugar Battery

A Virginia Tech research team has developed a battery that runs on sugar and has an unmatched energy density, a development that could replace conventional batteries with ones that are cheaper, refillable, and biodegradable.

The findings from Y.H. Percival Zhang, an associate professor of biological systems engineering in the College of Agriculture and Life Sciences and the College of Engineering, were published today in the journal Nature Communications.

While other sugar batteries have been developed, this one has an energy density an order of magnitude higher than others, allowing it to run longer before needing to be refueled, Zhang said.

In as soon as three years, Zhang's new battery could be running some of the cell phones, tablets, video games, and the myriad other electronic gadgets that require power in our energy-hungry world, Zhang said.

"Sugar is a perfect energy storage compound in nature," Zhang said. "So it's only logical that we try to harness this natural power in an environmentally friendly way to produce a battery."

In America alone, billions of toxic batteries are thrown away every year, posing a threat to both the environment and human health, according to the Environmental Protection Agency. Zhang's development could help keep hundreds of thousands of tons of batteries from ending up in landfills.

This is one of Zhang's discoveries in the last year that utilize a series of enzymes mixed together in combinations not found in nature. He has published articles on creating edible starch from non-food plants and developed a new way to extract hydrogen in an economical and environmentally friendly way that can be used to power vehicles.

In this newest development, Zhang and his colleagues constructed a non-natural synthetic enzymatic pathway that strip all charge potentials from the sugar to generate electricity in an enzymatic fuel cell. Then, low-cost biocatalyst enzymes are used as catalyst instead of costly platinum, which is typically used in conventional batteries.

Like all fuel cells, the sugar battery combines fuel — in this case, maltodextrin, a polysaccharide made from partial hydrolysis of starch — with air to generate electricity and water as the main byproducts.

"We are releasing all electron charges stored in the sugar solution slowly step-by-step by using an enzyme cascade," Zhang said.

Different from hydrogen fuel cells and direct methanol fuel cells, the fuel sugar solution is neither explosive nor flammable and has a higher energy storage density. The enzymes and fuels used to build the device are biodegradable.

The battery is also refillable and sugar can be added to it much like filling a printer cartridge with ink.

Untitled Document

Get All the Renewable Energy World News Delivered to Your Inbox - FREE!

Subscribe to Renewable Energy World Magazine and our award-winning e-Newsletter to stay up to date on current news and industry trends.

 Subscribe Now


Meeting the Need for Uniform Energy-Storage Codes, Standards and Regulations

Michael A. Stosser and Kyle E. Wamstad The energy-storage industry is now at a stage where stakeholders need to develop a coordinated vision for safety code...

DOE Releases Final Programmatic Environmental Impact Statement for Hawaii

Jennifer Delony DOE released a final programmatic environmental impact statement for Hawaii to provide federal, state and county gove...

The 800 Ways Taxpayer Money Supports Fossil Fuel Industries

Reed Landberg, Bloomberg As world leaders converge on New York for a United Nations gathering that’s expected to have a strong emphasis on cli...

Southern to Test and Evaluate 1 MW Battery Project in Georgia

Wayne Barber Southern Company said on Sept. 17 that it will test and evaluate a 1 MW (2-MWh) battery storage system in Cedartown, ...


US Solar Institute Chosen for Military Solar Training at Patrick Air Force Base

In August 2015, the Air Force chose The US Solar Institute (USSI) for a specialized sol...

Solar Power World Ranks Florida Solar One a Top 400 Solar Installer

Florida Solar One, a Miami Fort Lauderdale solar contractor is ranked among the top sol...

NC State University Installs Student-Funded Spotlight Solar Structure to Drive Awareness and Adoption of Clean Energy

North Carolina State University (NC State) will today showcase its commitment to clean ...

Canadian Solar Signs Agreement with Mashiki Town and Kumamoto Prefecture to Build 47 MW Solar Plant in Japan

Canadian Solar Signs Agreement for 47 MW Solar Plant



Geothermal Visual: GEA, Clean Energy Organizations Tell Congress: We Need Tax Extenders 'As Soon As Possible'

In a letter dated Oct. 5, over 580 signatories representing clean energy industries, including Geothermal Energy Asso...

Why the Solar PV Industry Should Love Geothermal Heat Pumps Part 3

It’s a marriage made in heaven: Solar PV and Geothermal Heat Pumps Part 3 of a 6-Part Series Geothermal Heat ...

Beyond Utility 2.0: Part 4 “Next Steps”

Principles, Structure, and Policies of Energy Democracy Energy democracy can best be described as an electricity sy...



Volume 18, Issue 4


To register for our free
e-Newsletters, subscribe today:


Tweet the Editors! @jennrunyon



JuiceBox Energy Certified Installer Class

JuiceBox Energy is rapidly building out its national certified installer...

Energy Storage North America

Energy Storage North America (Oct 13-15, 2015, in San Diego, California)...

6th Annual Europe Electricity Ancillary Services and Balancing Forum

Ensuring a smarter electricity market for efficient operations within a ...


The Grab Bag Rides Again

Pregame When I was sports editor for the college newspaper, I wrote a co...


One of the biggest challenges facing supermarket proprietors is managin...

Hydro Dam Role in Water Management

The significance of dams in regulating water flows has been highlighted ...


Renewable Energy: Subscribe Now

Solar Energy: Subscribe Now

Wind Energy: Subscribe Now

Geothermal Energy: Subscribe Now

Bioenergy: Subscribe Now