Solid-State Rechargeable Zinc-Air Battery with Long Shelf Life Based on Nanoengineered Polymer Electrolyte
- Title
- Solid-State Rechargeable Zinc-Air Battery with Long Shelf Life Based on Nanoengineered Polymer Electrolyte
- Author
- 이정호
- Keywords
- electrochemistry; membranes; polymers; solid-state electrolytes; zinc
- Issue Date
- 2018-07
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- CHEMSUSCHEM, v. 11, No. 18, Page. 3215-3224
- Abstract
- Zinc-air batteries (ZABs) are vulnerable to the ambient environment (e.g., humidity and CO2), and have serious selfdischarge issues, resulting in a short shelf life. To overcome these challenges, a near-neutral quaternary ammonium (QA) functionalized polyvinyl alcohol electrolyte membrane (different from conventional alkali-type membranes) has been developed. QA functionalization leads to the formation of interconnected nanochannels by creating hydrophilic/-phobic separations at the nanoscale. These nanochannels selectively transport OH- ions with a reduced migration barrier, while inhibiting [Zn(NH3)(6)](2+) crossover. Owing to the superior water retention ability and enhanced chemical stability of the membrane, the solid-state zinc-air battery (SZAB) displays outstanding flexibility, a promising cycle lifetime, and a large volumetric energy density. More importantly, the self-discharge rate of SZAB is depressed to less than 7% per month, and the fully dehydrated SZAB could recover its rechargeability upon replenishment of the solution of NH4Cl.
- URI
- https://onlinelibrary.wiley.com/doi/full/10.1002/cssc.201801274https://repository.hanyang.ac.kr/handle/20.500.11754/105610
- ISSN
- 1864-5631
- DOI
- 10.1002/cssc.201801274
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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