Keywords

3D Printing; Lithium Ion Battery; Direct Ink Writing; Hybrid Polymer; Solid-State

Abstract

Solid-state battery research has gained significant attention in recent years, as it provides a unique solution for several common issues in conventional Li-ion batteries. Additionally, as additive manufacturing technologies continue to advance, they have the potential to fabricate solid-state batteries with new materials. The objective of this study is to explore the feasibility of 3D printing of a solid-state battery. By creating an initial PEO-PSF hybrid polymer matrix dissolved in DMSO and adding a lithium salt, the base electrolyte ink was formed. With the addition of conductive additives and active material, electrode inks were also produced. Super P was used as the conductive additive for both electrodes, graphite served as the anode active material, and LFP was used for the cathode. The resulting inks were then tested electrochemically with an electrochemical impedance spectroscopy to characterize their behavior. This study was able to demonstrate the feasibility of direct ink writing of an electrolyte. Limitations in the printing process and ink formulation are believed to be the main contributors to the unsuccessful attempts. Although the results were not perfect, further studies using different ink compositions or printing processes may still lead to a fully functional 3D-printed solid-state battery. These findings support the potential future development of fully 3D-printed solid-state batteries in various fields such as electric vehicles, structural batteries, wearable electronics, and many more.

Thesis Completion Year

2025

Thesis Completion Semester

Fall

Thesis Chair

Wu, Dazhong

College

College of Engineering and Computer Science

Department

Department of Mechanical and Aerospace Engineering

Thesis Discipline

Mechanical Engineering

Language

English

Access Status

Open Access

Length of Campus Access

None

Campus Location

Orlando (Main) Campus

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Rights Statement

In Copyright