Synthesis and characterization of 1-butyl-4-amino-1,2,4-triazolium energetic ionic liquids with transition-metal complex anions

Gao, Bo; Zhanning, Niu; Yang, Hongwei; Tang, Haoqing; Liu, Xiaohuan; Tian, Tian

doi:10.1039/d1nj03212g

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…In addition, DFT calculation were conducted to evaluate the adsorption energies of the iodine species on PTFE binder and LA133 binder. [ 37 ] The optimized adsorption configurations of the three iodine species (I − , I 3 − , and I 2 ) near PTFE and the carboxyl site and amide site of LA133 monomers are shown in Figure 1g. For the PTFE monomer, all three iodine species (I − , I 3 − , and I 2 ) show larger distances (3.69, 3.77, and 3.78 Å, respectively) from the monomer, indicating weaker interactions between them.…”

Section: Resultsmentioning

confidence: 99%

An Iodine‐Chemisorption Binder for High‐Loading and Shuttle‐Free Zn–Iodine Batteries

Wang,

Li,

et al. 2024

Advanced Energy Materials

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Aqueous zinc–iodine (Zn–I2) batteries have attracted considerable research interest as an alternative energy storage system due to their high specific capacity, intrinsic safety, and low cost. However, the notorious shuttle effect of soluble polyiodides causes severe capacity loss and poor electrochemical reversibility, restricting their practical usage. Herein, this study reports a bifunctional binder (polyacrylonitrile copolymer, as known as LA133) with strong iodine‐chemisorption capability for aqueous Zn–I2 batteries to suppress polyiodide shuttling. From both calculation and experimental data, this study reveals that the amide and carboxyl groups in LA133 binder can strongly bond to polyiodides, significantly immobilizing them at cathode side. As a result, fewer byproducts, slower hydrogen evolution, and lesser Zn dendrite in the Zn–I2 battery are observed. Consequently, the battery shows high specific capacity (202.8 mAh g−1) with high iodine utilization efficiency (96.1%), and long cycling lifespan (2700 cycles). At the high mass loading of 7.82 mg cm−2, the battery can still retain 83.3% of its initial capacity after 1000 cycles. The specific capacity based on total cathode slurry mass reaches 71.2 mAh g−1, higher than most of the recent works. The strategy opens a new avenue to address the shuttling challenge of Zn–I2 batteries through bifunctional binder.

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Section: Resultsmentioning

confidence: 99%

An Iodine‐Chemisorption Binder for High‐Loading and Shuttle‐Free Zn–Iodine Batteries

Wang,

Li,

et al. 2024

Advanced Energy Materials

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Thermodynamic properties of new ether-functionalized [Co(NCS)4]2− paramagnetic ionic liquids

Yan,

Zhu,

et al. 2024

Ionics

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Synthesis and characterization of 1-butyl-4-amino-1,2,4-triazolium energetic ionic liquids with transition-metal complex anions

Abstract: Energetic ionic liquids based on 1-butyl-4-amino-1,2,4-triazolium cation and transition metal complex anions, namely [Co(NO2)6]3−, [Co(CN)6]3−, [Co(NCS)4]2− and [Fe(CN)6]3−, were synthesized.

Cited by 2 publications

References 30 publications

An Iodine‐Chemisorption Binder for High‐Loading and Shuttle‐Free Zn–Iodine Batteries

An Iodine‐Chemisorption Binder for High‐Loading and Shuttle‐Free Zn–Iodine Batteries

Thermodynamic properties of new ether-functionalized [Co(NCS)4]2− paramagnetic ionic liquids

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