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Mechanical Engineering Seminar by Justice Iroegbu and Nathaniel Joyal

When: Friday, December 3, 2021
2:00 AM - 3:00 AM
Description: Mechanical Engineering (MNE) SEMINAR

Friday, December 3, 2021

2:00 p.m. - 3:00 p.m.

Charlton College of Business (CCB) 115

Justice Iroegbu, MS student in Mechanical Engineering (Advisor is Dr. Caiwei Shen)

Molecular Dynamics Study of Charge Distribution in Electric Double Layer Capacitors

Supercapacitors have a major role to play in today's energy landscape. While lithium batteries have been a major breakthrough for energy storage in various devices and applications they are still plagued by limitations such as long charge times (low power density), safety due to electrolyte reactions leading to explosions and fires, amongst others. Some of these issues can be addressed by the development of alternative energy storage solutions which can drastically reduce charging times and are also much safer to use and store. This is where supercapacitors come in with fairly high energy density and very high power density. Some supercapacitors can be developed with solid state polymer electrolytes which would address the safety issue presented by liquid electrolyte systems. In our work we study and characterize electric double layer supercapacitors using experiments and particularly molecular dynamics simulations to understand the ion distribution at the electrode – electrolyte interface and other phenomena pertaining to the operation and performance of EDLCs.

Nathaniel Joyal, MS student in Mechanical Engineering (Advisor is Dr. Caiwei Shen)

Composite All-Solid-State Supercapacitors for Structural Energy Storage Applications

Increasing reliance on mobile devices and vehicles has generated the need for larger power supply systems to meet the demands of the user, be it a phone's battery life or vehicle range. The larger power needs have increased the size of many electrical devices, expanding the structural components of the devices as well, with the two making up the largest share of the mass of most devices. A solution to this issue is the development of multi-functional energy storage composites, namely structural supercapacitors for their good power density, high cyclability, and safety. This presentation examines the development of structural supercapacitors with good energy storage and mechanical properties created through the formation of a solid solution of thermoplastic polymers and lithium salts. Firstly, the creation, characterization, and optimization of a functional all solid-state electrolyte is conducted. Secondly the formation, testing and optimization of a functional composite prototype using an improved electrolyte system.

For more information please contact Dr. Hangjian Ling, MNE Seminar Coordinator (

All are welcome.

Students taking MNE-500 are REQUIRED to attend!

All other MNE BS and MS students are encouraged to attend. EAS students are also encouraged to attend.
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