Proceedings of 26th Annual Technological Advances in Science, Medicine and Engineering Conference 2022

Strategies toward high-performance dual-ion batteries
Jieun Kang, Jaegeon Ryu, Soojin Park
Abstract

The burgeoning market for electric vehicles and stationary energy storage systems has contributed to huge research efforts to deliver an immaculate rechargeable battery. Lithium-ion batteries (LIBs) with high energy density and long cycle life have led the rechargeable battery market for the past few decades, but limited theoretical energy density and expensive/limited resources require the development of next-generation rechargeable batteries. Anion intercalation-type batteries such as dual-ion batteries (DIBs) have got limelight as potential energy storage systems utilizing the inexpensive transition metal-free host materials such as graphite and anion redox chemistry while providing compatible energy/power density, cycle life, and safety of rechargeable batteries. DIBs with the high-voltage redox reaction of anions (>4.5 V vs. Li/Li+) have achieved energy density close to commercialized LIBs (~250 Wh kg-1) despite a short research history. However, despite the advantages, DIBs undergo electrolyte oxidative decomposition due to high operating voltage and structural collapse of the host material (mainly the graphite) due to large-sized anion intercalation. Material developments to overcome these problems are required for high-performance DIBs. Here, I report several material strategies including lithium-aluminum foil anode for DIBs. It is intended to explain various experiments conducted in terms of an anode, a cathode, and an electrolyte of DIB and provide a perspective on high-performance DIBs. 


Last modified: 2022-08-21
Building: TASME Center
Room: Science Hall
Date: August 27, 2022 - 04:35 PM – 04:50 PM

<< Back to Proceedings