Journal
ACS APPLIED ENERGY MATERIALS
Volume 2, Issue 5, Pages 3035-3041Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b00443
Keywords
aqueous battery; multivalent battery; organic electrode material; redox-active polymer; catechol polymer; catecholato-metal cation complex; electrochemistry; density functional theory
Funding
- Spanish MINECO [MAT201S-64167-C2-1-R]
- Fonds de la Recherche Scientifique (FRS-FNRS, Belgium)
- TALENTO grant from Comunidad de Madrid [2017-T1/AMB-5264]
Ask authors/readers for more resources
Organic electrode materials capable of reversible coordination/uncoordination of both mono- and multivalent ions in aqueous electrolytes are desired to develop safe, sustainable, and cost-effective water-based batteries. Here, we demonstrate the universality of bioinspired redox-active polymers bearing catechol pendants to reversibly coordinate/uncoordinate numerous cations including H+ and Li+ to Zn2+ and Al3+ with fast kinetics and ultralong cyclability. This unprecedented versatility is based on a catecholato-metal cation complex (Cat(2-)(mM(n+))) charge storage mechanism that dictates the overall electro-chemistry: formation of stronger complexes in M+ < M2+ < M3+ order resulted in a huge redox potential increment that might be used to tune the operating voltage of the battery.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available