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Updated: Aug 12, 2025

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

A room temperature rechargeable Li₂O-based lithium-air battery enabled by a solid electrolyte.

Alireza Kondori¹, Mohammadreza Esmaeilirad¹, Ahmad Mosen Harzandi¹

¹Department of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA.

Science (New York, N.Y.)

|February 2, 2023

Summary

Researchers developed a solid-state lithium-air battery achieving high energy density. This battery utilizes lithium oxide formation, enabling 1000 recharge cycles with excellent performance.

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Area of Science:

Electrochemistry
Materials Science
Energy Storage

Background:

Lithium-air batteries offer theoretical energy densities comparable to gasoline.
Achieving the four-electron lithium oxide (Li2O) formation is challenging compared to lower-electron reactions.

Purpose of the Study:

To develop a solid-state lithium-air battery capable of forming lithium oxide (Li2O).
To investigate the performance and rechargeability of such a battery at room temperature.

Main Methods:

Utilized a composite polymer electrolyte with Li10GeP2S12 nanoparticles in a polyethylene oxide matrix.
Investigated the discharge product formation in a room-temperature solid-state lithium-air battery.

Main Results:

Identified lithium oxide (Li2O) as the primary discharge product.
Demonstrated rechargeability for 1000 cycles with low polarization.
Achieved high-rate operation.

Conclusions:

The composite polymer electrolyte facilitates Li2O formation in solid-state lithium-air batteries.
A mixed ion-electron-conducting discharge product enables the challenging four-electron reaction.