Northwestern University and Evanston's Only Daily News Source Since 1881

The Daily Northwestern

Northwestern University and Evanston's Only Daily News Source Since 1881

The Daily Northwestern

Northwestern University and Evanston's Only Daily News Source Since 1881

The Daily Northwestern


Advertisement
Email Newsletter

Sign up to receive our email newsletter in your inbox.



Advertisement

Advertisement
Body recovered in Lake Michigan, EPD examining identity of body
Evanston’s ‘Seeds of Change’ theme inspires unity at Fourth of July parade
Lawsuit against Pritzker School of Law alleges its hiring process discriminates against white men
Evanston Fire concludes recovery search and rescue efforts for missing swimmer after ‘exhausting’ all resources
Independent review of athletics department released, puts forth key recommendations
City Council approves $800,000 settlement over Fountain Square leaks, discusses leaf blower ordinance amendments
Northwestern hosts groundbreaking ceremony at Ryan Field construction site
Advertisement
Perry: A little humility goes a long way

Brew, Hou, Leung, Pandey: On being scared to tweet and the pressure to market yourself as a student journalist

June 4, 2024

Haner: A love letter to the multimedia room

June 4, 2024

Independent review of athletics department released, puts forth key recommendations

Northwestern hosts groundbreaking ceremony at Ryan Field construction site

June 25, 2024

Derrick Gragg appointed as Northwestern’s vice president for athletic strategy, search for new athletic director begins

June 13, 2024

Advertisement

The secret (and short) lives of cicadas on campus

NU Declassified: Prof. Barbara Butts teaches leadership through stage management

Everything Evanston: Behind the boba in downtown Evanston

Northwestern, Illinois researchers develop first stretchable battery

A Northwestern professor has helped create the first stretchable lithium-ion battery, the University announced Wednesday.

The flexible device is cordless and can be recharged wirelessly. It continues to operate when twisted, stretched or folded, according to a University news release.

The battery was created by Yonggang Huang, a McCormick professor, and John Rogers, a science and engineering professor and a Swanlund Chair at the University of Illinois at Urbana-Champaign.

Huang and Rogers said the battery can work inside the human body and can measure brain waves or heart activity. The power and voltage are comparable to a rigid battery but the new discovery will be able to expand up to 300 percent of its original size.

The researchers have worked together to develop stretchable electronics for the last six years. They had previously developed stretchable electronic circuits but not batteries.

Huang created the key to developing the battery — a unique design that works as a “spring within a spring.” The metal wire that connects the different battery components is in the shape of an “S” and that “S” is made up of even smaller “S’s” that will expand once the large “S” has been stretched to capacity.

“We call this ordered unraveling,” Huang said in the release. “And this is how we can produce a battery that stretches up to 300 percent of its original size.”

The Initiative for Sustainability and Energy helped support the research, which was published on Feb. 26 in the online journal Nature Communications, according to the release.

In addition to Huang and Rogers, three other NU researchers worked on the paper, Yihui Zhang, Yewang Su and Huanyu Cheng.

— Ally Mutnick

Activate Search
Northwestern University and Evanston's Only Daily News Source Since 1881
Northwestern, Illinois researchers develop first stretchable battery