Project Team
Students
Joseph Wolf
Energy Engineering
Penn State York
Faculty Mentors
Feifei Shi
Penn State University Park
Energy and Mineral Engineering
Project
https://sites.psu.edu/mcreu/files/formidable/2/MCREUPosterdraft.pdf
Project Video
Project Abstract
Battery research has been shifting to focus on conversion Li-ion cathodes, which are desirable for their much higher theoretical capacities than current battery electrodes, which use intercalation chemistry. However, conversion compounds have yet to be adopted commercially due to unresolved issues such as low conductivity, volume expansion, and side reactions with the electrolyte causing capacity fading and cell failure. To remedy these problems, conversion materials have been combined with intercalation compounds in several studies. Cathodes using sulfur as a conversion compound with various intercalation compounds are well documented, but have low rate-performance and operate at a low voltage. In this research, metal fluoride conversion compounds (MFx) will be coated onto a NCM intercalation compound via wet chemistry recrystallization under nitrogen atmosphere. A half-cell with lithium foil will be built and cycled to test the capacity and retention of the cathode.
Evaluate this Project
Use this form link to provide feedback to the presenters, and add your project evaluation for award(s) consideration.