Nav: Home

City College engineers produce long lasting, energy density battery

August 01, 2017

A new generation of manganese dioxide-zinc batteries with unprecedented cycle life and energy density is the latest innovation at The City College of New York-based CUNY Energy Institute. The discovery has made the common household battery suitable for large grid storage applications.

City College Senior Research Associate Gautam G. Yadav and his team applied a new twist to the old chemistry behind batteries. The result is a battery that takes advantage of intercalation and complexation chemistry to make the cathodes rechargeable to a larger extent, greatly extending its life.

"A new layered crystal structure of manganese dioxide is used in this chemistry, which is intercalated with copper ions. This makes it rechargeable to its theoretical capacity for a significant number of cycles," said Yadav.

According to Yadav, this is the first time a novel calcium hydroxide interlayer is used to block the poisonous zinc ions through complexation. This in turn allows the battery to maintain its high energy density over 900 cycles.

A recent trend in the energy storage field has been to replace unsafe and expensive lithium-ion batteries with zinc-anode versions as zinc is cheap, abundant and much safer. Until now, the only detriment of this version has been the latter's relatively short cycle life, which has not allowed it to be successfully commercialized as a rechargeable battery.

The Yadav team's research appears in the Journal of Materials Chemistry A.
-end-
Team members included Xia Wei, Michael Nyce, Jinchao Huang, Joshua Gallaway, Damon Turney, Jeff Secor and Sanjoy Banerjee, Distinguished Professor and director of the CUNY Energy Institute.

City College of New York

Related Zinc Articles:

Dietary zinc protects against Streptococcus pneumoniae infection
Researchers have uncovered a crucial link between dietary zinc intake and protection against Streptococcus pneumoniae, the primary bacterial cause of pneumonia.
Zinc could help as non-antibiotic treatment for UTIs
New details about the role of zinc in our immune system could help the development of new non-antibiotic treatment strategies for bacterial diseases, such as urinary tract infections (UTIs).
Zinc deficiency may play a role in high blood pressure
Lower-than-normal zinc levels may contribute to high blood pressure (hypertension) by altering the way the kidneys handle sodium.
Genetic polymorphisms and zinc status
Zinc is an essential component for all living organisms, representing the second most abundant trace element, after iron.
Autism is associated with zinc deficiency in early development -- now a study links the two
Autism has been associated with zinc deficiency in infancy. While it is not yet known whether zinc deficiency in early development causes autism, scientists have now found a mechanistic link.
Can chocolate, tea, coffee and zinc help make you more healthy?
Ageing and a low life expectancy are caused, at least partly, by oxidative stress.
Zinc oxide nanoparticles: Therapeutic benefits and toxicological hazards
Despite the widespread application of zinc oxide nanoparticles in biomedicine, their use is still a controversial issue.
Excess zinc in muscles contributes to wasting syndrome in cancer
A new study from Columbia University suggests that an overload of zinc in muscle leads to a debilitating wasting syndrome in cancer patients.
Preconception zinc deficiency could spell bad news for fertility
The availability of micronutrients in the ovarian environment and their influence on the development, viability and quality of egg cells is the focus of a growing area of research.
Army research rejuvenates older zinc batteries
Army scientists, with a team of researchers from the University of Maryland and the National Institute of Standards and Technology, have created a water-based zinc battery that is simultaneously powerful, rechargeable and intrinsically safe.
More Zinc News and Zinc Current Events

Top Science Podcasts

We have hand picked the top science podcasts of 2019.
Now Playing: TED Radio Hour

Accessing Better Health
Essential health care is a right, not a privilege ... or is it? This hour, TED speakers explore how we can give everyone access to a healthier way of life, despite who you are or where you live. Guests include physician Raj Panjabi, former NYC health commissioner Mary Bassett, researcher Michael Hendryx, and neuroscientist Rachel Wurzman.
Now Playing: Science for the People

#544 Prosperity Without Growth
The societies we live in are organised around growth, objects, and driving forward a constantly expanding economy as benchmarks of success and prosperity. But this growing consumption at all costs is at odds with our understanding of what our planet can support. How do we lower the environmental impact of economic activity? How do we redefine success and prosperity separate from GDP, which politicians and governments have focused on for decades? We speak with ecological economist Tim Jackson, Professor of Sustainable Development at the University of Surrey, Director of the Centre for the Understanding of Sustainable Propserity, and author of...
Now Playing: Radiolab

An Announcement from Radiolab