journal article·2021-03-17

Self-Healing and Anti-CO2 Hydrogels for Flexible Solid-State Zinc-Air Batteries

Siyuan Zhao, Dawei Xia, Minghao Li, Diyi Cheng, Keliang Wang, Ying Shirley Meng, Zheng Chen, Jinhye Bae

ACS Applied Materials & Interfaces· Volume 13· Issue 10
Publisher page

Abstract

Flexible solid-state zinc-air batteries (ZABs) generally suffer from poor electrolyte/electrode contact and mechanical degradation in practical applications. In addition, CO2 corrosion is also a common issue for ZABs with alkaline electrolyte. Herein, we report a thermoreversible alkaline hydrogel electrolyte that can simultaneously solve the aforementioned problems. Through a simple cooling process, the hydrogel electrolyte transforms from solid state to liquid state that can not only restore the deformed electrolyte layer to its original state but also rebuild intimate contact between electrode and electrolyte. Moreover, the ZAB based on this hydrogel electrolyte exhibits an unprecedented anti-CO2 property. As a result, such a battery shows almost 2.5 times discharge duration than that of ZAB based on liquid electrolyte.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced battery technologies research · Supercapacitor Materials and Fabrication · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States

School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

Materials Science and Engineering Program, University of California San Diego, La Jolla, California 92093, United States

Sustainable Power and Energy Center (SPEC), University of California San Diego, La Jolla, California 92093, United States

Program of Chemical Engineering, University of California San Diego, La Jolla, California 92093, United States

Funding

State Key Laboratory of Automotive Safety and Energy · National Natural Science Foundation of China · Zable Endowed Chair fund · Jacob School of Engineering, University of California San Diego

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