MASc Oral Exam| :Design of Self-Aggregating and Recyclable Quasi-Solid-State

Friday, December 6, 2024 1:00 pm - 2:00 pm EST (GMT -05:00)

You are welcome to attend Tong Wang's MASc oral exam, where they will discuss their research in Design of Self-Aggregating and Recyclable Quasi-Solid-State

The exam will take place Virtually: https://teams.microsoft.com/l/meetup-join/19%3ameeting_NDliODk3MTgtMTE5Mi00M2RjLWJkNzUtZTdiOTgwNjQxMTM2%40thread.v2/0?context=%7b%22Tid%22%3a%22723a5a87-f39a-4a22-9247-3fc240c01396%22%2c%22Oid%22%3a%2202ee8609-0a6c-4b01-9de5-10d37423d002%22%7d

Abstract:

Zinc-ion batteries present a sustainable alternative to lithium-based systems
for grid-scale energy storage, offering advantages such as non-toxicity,
recyclability, and abundant resources. This thesis investigates a
gelatin-based hydrogel quasi-solid-state electrolyte (QSSE) derived from
commercially available Jell-O powder. The QSSE forms a robust 3D helical
matrix that effectively suppresses Zn dendrite growth, enhancing cycling
stability and electrochemical performance. Zn//Zn symmetric cells demonstrate
exceptional durability, sustaining 2000 hours at 1 mA cm⁻², while
Zn//MnO₂ full cells exhibit 88.7% capacity retention over 1000 cycles with
high Coulombic efficiency. The QSSE is compatible with various cathode
materials and can be recycled, emphasizing its potential for
high-performance, sustainable zinc-ion batteries.

Supervisor: Professor Yu

Co-Supervisor: Professor Fowler