August 9, 2022 UMD Home FabLab AIMLab



A research team in the University of Maryland (UMD) Department of Chemical and Biomolecular Engineering (ChBE) has achieved another breakthrough in metallic zinc battery chemistry – after innovating a zinc-air battery cathode reported in Science earlier this year – this time specific to the anode.

The team, led by UMD Professor Chunsheng Wang, created a fluorinated interphase, which enables reversible water-based zinc battery chemistries. Longsheng Cao (ChBE Post-doc), Dan Li (ChBE Post-doc) and Travis Pollard (U.S. Army Research Lab) served as first authors on the study, published in Nature Nanotechnology on May 10.

"Metallic zinc is a supreme anode because it boasts high capacity, low redox potential, high abundance and low toxicity," said Cao. "It's also incredibly safe, but suffers from severe irreversibility -- for example, we often see dendrite growth and low coulombic efficiency in aqueous electrolytes, which makes the formation of a solid-electrolyte interphase [SEI] impossible."

To that end, the Wang group created a diluted and acidic water electrolyte, with an alkylammonium salt additive, which gave way to the formation of a robust and waterproof SEI. This chemistry offers dendrite-free zinc plating and stripping at nearly 100% coulombic efficiency.

The SEI, mainly composed of hydrophobic inorganic fluoride, allows zinc ions to move back and forth, blocks water penetration, and prevents electron transfer. Such chemistry prohibits electrolyte or zinc anode consumption, which enables long-term use of aqueous zinc batteries.

This study continues research progress in the zinc battery including air cathode, electrolytes, organic electrolyte coatingSEI design, and MnO2 cathodes.

For additional information:

Cao, L., Li, D., Pollard, T., Deng, T., Wang, C. et al. (10 May 2021). Fluorinated interphase enables reversible aqueous zinc battery chemistries, Nature Nanotechnology. DOI: 10.1038/s41565-021-00905-4.



Related Articles:
Multi-institutional Research Team Documents Quantum Melting of Wigner Crystals
Maryland Scientists Synthesize Metallic Glass Nanoparticles via High Temperature Thermal Shock
Maryland Engineers Open Door to Big New Library of Tiny Nanoparticles
A Paradigm Shift in Nanochannel Research
UMD Research Team Advances the Battery Revolution
Joy Chao Receives 2020 MRS Silver Graduate Student Award
Micro-reactor Produces Quality Nanoparticles
High Temperature Thermal Shocks Increase Stability of Single Atom Catalysts
Marina Leite to Give a Plenary Talk at International Conference in Belgium
Gary Rubloff keynote speaker at IEEE nanotechnology conference

May 10, 2021


«Previous Story  

 

 

Current Headlines

2022 Sony Research Award Program Invitation

Attoh-Okine Named UMD CEE Chair

Rethinking the Architecture of Solid-State Batteries: ION Closes $30M Investment Round

Liangbing Hu Named Finalist for 2022 Blavatnik National Awards for Young Scientists

Electrified Heating Towards Green Methane Conversion and Ammonia Synthesis

In the News: Leatherbacks Combat Robotics Team on ABC7

UMD Dedicates IDEA Factory

Engineering at Maryland magazine celebrates the power of philanthropy, impact on students

UMD Inventions of the Year Tackle Grand Challenges

JC Zhao Receives Humboldt Research Award

 

Colleges A. James Clark School of Engineering
The College of Computer, Mathematical, and Natural Sciences

Communicate Join Email List
Contact Us
Follow us on TwitterTwitter logo

Links Privacy Policy
Sitemap
RSS

Copyright The University of Maryland University of Maryland
2004-2022