Title

Low-Cost Lithium Borate Compound for Solid State Lithium-ion Battery Electrolyte

Presenter Information

Darian Johnson

Department

Chemistry

Major

Chemical Engineering

Research Advisor

Choudhury, Amitava

Advisor's Department

Chemistry

Funding Source

Choudhury Start-up Package; Opportunities for Undergraduate Research Experiences (OURE)

Abstract

Several research activities have been focused towards using lithium-ion batteries to act as an all solid-state battery. This requires a highly lithium-ion conducting solid to play the role of a solid electrolyte. This has been a major barrier towards the realization of a high efficiency all solid-state lithium-ion battery, which is why our research is focused on discovering new materials that can potentially serve as a solid state lithium electrolyte. We have synthesized a lithium-borate composition and solved the structure using single-crystal x-ray diffraction. The structure of this compound, Li3B5O8(OH)2, crystallizes in the Pnc2 space group, indicates good lithium-ion conduction and is built with BO3 and BO4 polyhedra and forms a layered topology. This project details the synthesis, structure, powder X-ray diffraction, and IR and NMR spectroscopic characterization as well as lithium-ion conduction measurements of the new composition.

Biography

Darian Johnson is a graduating senior in the Chemical Engineering department. She is involved in several student organizations and activities including, Miner Challenge Alternative Spring Break and Omega Chi Epsilon, as well as serving as the president of the Association for Black Students and co-chair of this year’s Student Leadership Conference. In her free time she enjoys baking, running, and watching the Food Network. Darian has always been passionate about food and throughout college has been inspired to develop a healthier lifestyle. After graduation, Darian would like to pursue a career in the food and beverage industry, creating healthier food products.

Research Category

Research Proposals

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium/Hallway

Presentation Date

11 Apr 2016, 9:00 am - 11:45 am

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

Low-Cost Lithium Borate Compound for Solid State Lithium-ion Battery Electrolyte

Upper Atrium/Hallway

Several research activities have been focused towards using lithium-ion batteries to act as an all solid-state battery. This requires a highly lithium-ion conducting solid to play the role of a solid electrolyte. This has been a major barrier towards the realization of a high efficiency all solid-state lithium-ion battery, which is why our research is focused on discovering new materials that can potentially serve as a solid state lithium electrolyte. We have synthesized a lithium-borate composition and solved the structure using single-crystal x-ray diffraction. The structure of this compound, Li3B5O8(OH)2, crystallizes in the Pnc2 space group, indicates good lithium-ion conduction and is built with BO3 and BO4 polyhedra and forms a layered topology. This project details the synthesis, structure, powder X-ray diffraction, and IR and NMR spectroscopic characterization as well as lithium-ion conduction measurements of the new composition.