Title

New Lithium borate composition for solid state Li-ion battery electrolyte

Presenter Information

Darian Johnson

Department

Chemistry

Major

Chemistry

Research Advisor

Choudhury, Amitava

Advisor's Department

Chemistry

Funding Source

Choudhury-startup package

Abstract

In the area of Li-ion battery lot of research activities are focused towards building an all solid-state battery. This means that a highly Li-ion conducting solid is required to play the role of a solid electrolyte. This has been a major barrier towards the realization of a high efficiency all solid-state Li-ion battery. For this reason we focused our research to discover new materials that can potentially play the role of solid state Li-electrolyte. In this direction we have synthesized a new Li-borate composition and solved the structure using single-crystal X-ray diffraction. The compound, Li3B5O8(OH)2, crystallizes in the orthorhombic space group of Pnc21 and have the following cell parameters: a = 8.499(5), b = 26.520(10), c = 9.308(3) α = β = γ = 90°, Vol = 2097.96. The structure of this compound is built with BO3 and BO4 polyhedra and forms a layered topology. The Li-ions are located in between the layers. In this presentation we will focus on the synthesis, structure, powder X-ray diffraction and IR-spectroscopic characterization of the new composition.

Biography

Darian graduared from Center High School in 2012. She is a current junior in the Chemical Engineering department and hopes to obtain a minor in Chemistry. Aside from doing research, she also works as a Success Coach in the Student Success Center and as a MASH Mentor for Math 1120. Darian is very passionate about food and wants to one day work as a product developer, creating new food products.

Research Category

Sciences

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium/Hall

Presentation Date

15 Apr 2015, 9:00 am - 11:45 am

This document is currently not available here.

Share

COinS
 
Apr 15th, 9:00 AM Apr 15th, 11:45 AM

New Lithium borate composition for solid state Li-ion battery electrolyte

Upper Atrium/Hall

In the area of Li-ion battery lot of research activities are focused towards building an all solid-state battery. This means that a highly Li-ion conducting solid is required to play the role of a solid electrolyte. This has been a major barrier towards the realization of a high efficiency all solid-state Li-ion battery. For this reason we focused our research to discover new materials that can potentially play the role of solid state Li-electrolyte. In this direction we have synthesized a new Li-borate composition and solved the structure using single-crystal X-ray diffraction. The compound, Li3B5O8(OH)2, crystallizes in the orthorhombic space group of Pnc21 and have the following cell parameters: a = 8.499(5), b = 26.520(10), c = 9.308(3) α = β = γ = 90°, Vol = 2097.96. The structure of this compound is built with BO3 and BO4 polyhedra and forms a layered topology. The Li-ions are located in between the layers. In this presentation we will focus on the synthesis, structure, powder X-ray diffraction and IR-spectroscopic characterization of the new composition.