Ampere-hour-scale zinc–air pouch cells
- Title
- Ampere-hour-scale zinc–air pouch cells
- Author
- 삼바지 시바지 신데
- Issue Date
- 2021-04
- Publisher
- NATURE RESEARCH
- Citation
- NATURE ENERGY, NO 6, Page. 592-604
- Abstract
- All-solid-state zinc–air pouch cells promise high energy-to-cost ratios with inherent safety; however, finding earth-abundant high
power/energy cathodes and super-ionic electrolytes remains a fundamental challenge. Here we present realistic zinc–air pouch
cells designed by the (101)-facet copper phosphosulfide [CPS(101)] as a cathode as well as anti-freezing chitosan-biocellulosics
as super-ionic conductor electrolytes. The proposed CPS(101) exhibits trifunctional activity and stability (>30,000 cycles)
towards reversible oxygen reactions and hydrogen evolution reactions, outperforming commercial Pt/C and RuO2. Furthermore,
hydroxide super-ion conductors utilizing polymerized chitosan-biocellulosics reveal exceptional conductivity (86.7 mS cm−1
at 25 °C) with high mechanical/chemical robustness. High cell-level energy densities of 460 Wh kgcell–1/1,389 Wh l−1
are normally measured in pouch cells (1 Ah) with a cycle lifespan of 6,000/1,100 cycles at 25 mA cm−2
for 20/70% depths of discharge, and the highest densities we could achieve were 523 Wh kgcell–1/1,609 Wh l−1
. Flexible pouch cells operate well at rates
of 5–200 mA cm−2
over a broad temperature range of −20 to 80 °C.
- URI
- https://www.nature.com/articles/s41560-021-00807-8https://repository.hanyang.ac.kr/handle/20.500.11754/171751
- ISSN
- 20587546
- DOI
- 10.1038/s41560-021-00807-8
- Appears in Collections:
- RESEARCH INSTITUTE[E](부설연구소) > RESEARCH INSTITUTE OF ENGINEERING & TECHNOLOGY(공학기술연구소) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML