| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Exploring Capillary Suspension Technique to Develop 3D Printable Oxide Based Lithium Electrolytes for All Solid-state Batteries by Direct Ink Writing |
| Author(s) |
Siri Vaishnavi Thummalapalli, Venkat Kamavaram , Ganesh Kumar Arumugam, Arunachala M Kannan, Kenan Song |
| On-Site Speaker (Planned) |
Siri Vaishnavi Thummalapalli |
| Abstract Scope |
The development of solid-state batteries is a bottleneck to replacing the current lithium-ion batteries with liquid electrolytes for enhancing safety and energy density. Lithium garnet materials such as Li7La3Zr2O12(LLZO), are ceramic lithium conductors that have several unique properties. The challenge for developing a Solid-State Electrolyte (SSE) for Lithium-ion batteries is the limitation of relatively low ionic conductivity and high interfacial resistance between electrolyte and electrode. Although SSE has shown significant improvements in performance in recent years, they still face dendrite propagation issues due to planar geometries and random porosities. Herein, we present all solid-state 3D printable electrolytes using Ta-doped LLZTO garnet material using Direct Ink Writing (DIW) technique. Direct Ink Write (DIW) involves a controlled selective deposition of material according to a pattern. DIW techniques are capable of single or multi-layer patterning of material onto flat as well as conformal surfaces. Furthermore, multiple ink formulations have been developed with optimized rheological behavior using the capillary suspension technique. Compared to conventional methods, printable electrolytes can be tailored with different structural hierarchies (e.g., surface patterning) for diffused interface between electrode-electrolyte to block the dendrite and achieve a more stable battery performance. The major objective of this study is to optimize printable electrolyte ink composition and rheology, electrolyte conductivity, interfacial resistance, and energy density of solid-state battery through systematic materials characterization and cell testing. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |