A bipolar-redox tetraalkynylporphyrin macrocycle positive electrode with 12-electrons-transfer for high-energy aluminum-organic batteries

Yuxi Guo, Wei Wang (), Ke Guo, Xiaodong Chen, Mingyong Wang, Zheng Huang, Yanli Zhu (), Weili Song and Shuqiang Jiao ()
Additional contact information
Yuxi Guo: Beijing Institute of Technology
Wei Wang: University of Science and Technology Beijing
Ke Guo: Beijing Institute of Technology
Xiaodong Chen: Lanzhou University of Technology
Mingyong Wang: University of Science and Technology Beijing
Zheng Huang: University of Science and Technology Beijing
Yanli Zhu: Beijing Institute of Technology
Weili Song: Beijing Institute of Technology
Shuqiang Jiao: University of Science and Technology Beijing

Nature Communications, 2025, vol. 16, issue 1, 1-15

Abstract: Abstract Organic electrode materials with bipolar-redox activity are a promising candidate for high-energy aluminum-ion batteries (AIBs), but face the capacity ceiling due to limited active sites and low electron transfer number. To universally address this issue, seeking for a kind of multisite bipolar organic material to achieve multielectron transfer is a prerequisite but challenging. Herein, we develop a 12-electron transfer tetraalkynylporphyrin macrocycle positive electrode with two p-type amine (‒NH‒) motifs, two n-type imine (C = N) motifs and four n-type alkynyl (C ≡ C) motifs. The bipolar 18π-electron porphyrin macrocycle can alternately bind and release AlCl4− anions at ‒NH‒ sites and AlCl2+ cations at C = N sites (oxidized from 18π to 16π or reduced from 18π to 20π), achieving four electrons transfer. Furthermore, each terminal C ≡ C site can also coordinate with two AlCl2+ cations, thereby delivering eight electrons. The designed aluminum-organic battery achieves a high capacity of up to 347 mAh g−1 (3-6 times that of conventional graphite positive electrode, 60-120 mAh g−1) and a high specific energy of 312 Wh kg−1 (up to 150% compared to cells with graphite as positive electrode) based on the mass of positive electrode materials.

Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-58126-5 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-58126-5

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-025-58126-5

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().