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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
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A Sustainable NH4 + Ion Battery by Electrolyte Engineering
Zhengnan Tian1, Jun Yin2, Tianchao Guo1
1Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
Angewandte Chemie (International Ed. in English)
|October 26, 2022
Summary
Adding sucrose to aqueous ammonium ion batteries stabilizes electrolytes by modulating water's hydrogen bond network. This strategy inhibits water decomposition and enhances ion conductivity for practical energy storage applications.
Area of Science:
- Electrochemistry
- Materials Science
- Sustainable Energy
Background:
- Aqueous ammonium ion batteries offer a sustainable energy storage solution.
- Practical application is hindered by electrolyte side reactions like water decomposition and host material dissolution.
- Ultrahigh concentrated electrolytes are not feasible for ammonium systems due to ion hydrolysis.
Purpose of the Study:
- To develop a novel strategy for modulating the electrolyte's water hydrogen bond network.
- To improve the stability and performance of aqueous ammonium ion batteries.
- To overcome limitations posed by water decomposition and ion migration.
Main Methods:
- Introduction of sucrose into the aqueous electrolyte.
- Analysis of sucrose-water hydrogen bond network formation.
- Investigation of ion migration and conductivity changes.
Main Results:
- Sucrose effectively disrupts the continuous water hydrogen bond network.
- Water decomposition is significantly inhibited by the sucrose additive.
- Weak hydrogen bonding between ammonium and sucrose promotes rapid ion migration and enhances ionic conductivity.
Conclusions:
- Sucrose addition is a viable strategy for electrolyte modulation in aqueous ammonium ion batteries.
- This approach enhances battery stability and ionic conductivity.
- The findings pave the way for practical applications of sustainable aqueous ammonium ion batteries.
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