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Fluidized Cathodes for Flexible Lithium-Ion Batteries

Foreman, Evan
http://rave.ohiolink.edu/etdc/view?acc_num=akron1493375732158489

Abstract Details

2017, Master of Science in Engineering, University of Akron, Mechanical Engineering.
This study explores the viability of "fluidizing" lithium-ion battery (LIB) cathodes--including active energy storing material and conductive additive powders--in electrolyte. Market demand and growth necessitates research and development of lithium-ion batteries in order to fulfill the power requirements of next generation electronics. The development of flexible, wearable, and implantable electronic devices has revealed a need for stretchable, foldable, durable power sources to be integrated into the devices. With this in mind, these fluidized cathodes have been developed to improve versatility in designing electrochemical energy storage systems. Using this cathode structure, the production of a novel, infinitely mechanically durable, highly energy-dense LIB is achievable. No stresses in active materials during lithiation and delithiation processes occur in these cathodes. The highly viscous fluidized cathodes are ideal for integration into totally flexible batteries and low-viscosity fluidized cathodes may be ideal for flow battery applications. A novel fluidized cathode test housing was created that allows for testing of different fluidized cathode compositions vs. lithium metal. Ten different compositions were manufactured using three different conductive additive materials. Compositions were tested in half-cell configurations so that the optimum composition could be found. This optimum composition was found to be repeatable, and preliminary life cycle testing is underway. Cycling results of the compositions show that these fluidized cathodes are both feasible and effective. Participation in the NSF I-Corps Sites program determined that a distinct market need for a highly durable, totally flexible battery has not yet been clearly defined. However, among electronics manufacturers, there is much excitement at the prospect of integrating flexible, high-energy batteries into new, currently undeveloped and unexplored devices. Market research indicates that both the LIB and flexible electronics markets will experience significant growth in the next decade, and a battery based on fluidized electrodes could contribute to this progress.
Siamak Farhad, Dr. (Advisor)
Gaurav Mittal, Dr. (Committee Member)
Reza Madad, Dr. (Committee Member)
92 p.
Energy; Mechanical Engineering
lithium-ion; flexible battery; fluidized electrode; electrode suspension

Recommended Citations

Citations

  • Foreman, E. (2017). Fluidized Cathodes for Flexible Lithium-Ion Batteries [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1493375732158489

    APA Style (7th edition)

  • Foreman, Evan. Fluidized Cathodes for Flexible Lithium-Ion Batteries. 2017. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1493375732158489.

    MLA Style (8th edition)

  • Foreman, Evan. "Fluidized Cathodes for Flexible Lithium-Ion Batteries." Master's thesis, University of Akron, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1493375732158489

    Chicago Manual of Style (17th edition)

akron1493375732158489
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© 2017, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.