2018-02-152018-02-15December 22015-12December 2http://hdl.handle.net/10657/2154The world has never stopped seeking more sustainable and cost-effective lithium- ion batteries due to the increasing energy demand in the near future. Aqueous rechargeable lithium batteries (ARLBs) may become a viable candidate due to its excellent safety and reliability. Developing electroactive organic electrode materials for batteries have attracted more and more interests as green and low-cost materials. Among all these materials, polyimide materials with high mechanical strength and excellent thermal stability are particularly promising. In this Master’s research study, I have synthesized four imide-based materials and tested them in aqueous electrolyte as anode electrode materials. One of the four materials, N,N’-Bis(ethyl)-1,4,5,8-naphthalenetetracarboxylic diimide (NDIE), achieves a specific capacity of 121.3 mAh/g and a 57.7% capacity retention after 20 cycles. After the cell optimization, the capacity increased to 158.5 mAh/g and retention increased to 90%, respectively. The corresponding polymer, PNDIE, could achieve a specific capacity of 172.3 mAh/g and a 91.9% retention after 50 cycles. The excellent stability and high coulombic efficiency of PNDIE make it a promising anode electrode material candidate for ALIBs.application/pdfengThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).Aqueous Li-Ion Battery2018-02-15Thesisborn digital