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Poster: Enabling All-Carbon Dual-ion Batteries through Highly Concentrated Electrolytes

Poster: Enabling All-Carbon Dual-ion Batteries through Highly Concentrated Electrolytes

Authors: Antonia Kotronia
Title: Enabling All-Carbon Dual-ion Batteries through Highly Concentrated Electrolytes
Affiliation: Uppsala University

Abstract

Dual-ion batteries (DIBs) rely on the redox amphotericity of graphite which allows for intercalation of cations and anions into its structure. Exploiting this,  high-voltage (above 4.7 V vs. lithium) rechargeable batteries can be developed without using any transition metal-containing active materials. This cheap, safe and environmentally-friendly technology  needs, however, to overcome considerable challenges before commercialization. Most importantly, the development of DIBs is affected by capacity fading associated with graphite exfoliation upon anion intercalation and the lack of current collectors that can withstand corrosion at high operational voltages. This study attempts to tackle both issues by employing highly concentrated electrolytes with PF6-, TFSI- and FSI- anions. The impact of anion intercalation on the structure of graphite and the oxidative stability of Al current collectors in concentrated electrolytes are studied using electrochemical and spectroscopic techniques.

Full list of posters


Poster: A new operando cell for neutron diffraction on Li-ion battery materials
Poster: Autonomous optimization of second use battery storage systems
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