Presentation Title

Increased reversibility of zinc/manganese dioxide batteries through electrolyte additives

Faculty Mentor

John Christopher Bachman

Start Date

23-11-2019 8:00 AM

End Date

23-11-2019 8:45 AM

Location

251

Session

poster 1

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

Renewable power sources are becoming a larger contributor to our power grid in order to reduce our impact on the environment through power production. This requires the implementation of larger quantities of energy storage on the electrical grid to accommodate the intermittent nature of renewable power sources. Creating affordable high-density energy storage is key to achieving that goal. Commercial primary batteries such as zinc/manganese dioxide are relatively affordable. Thus, altering these affordable batteries to increase its reversibility is an attractive solution as an inexpensive energy storage technology. A tool-less solid-state battery test cell was designed and manufactured for testing efficiency. The test cell consists of two steel terminals, a stainless-steel compression spring and a stainless-steel current collector. Work published by an article has shown that zinc/manganese triflate electrolyte can improve the rechargeability of zinc/manganese dioxide nanorod batteries. These additives were tested for the first time on commercially available manganese dioxide battery materials. The electrodes are slurry casted cathodes with zinc metal anodes and zinc/manganese triflate electrolytes. Capacity and reversibility are tested by charging and discharging at different voltage thresholds. The results suggest zinc/manganese triflate is a viable electrolyte for increasing reversibility to be used in affordable large-scale energy storage with commercially available manganese dioxide.

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Nov 23rd, 8:00 AM Nov 23rd, 8:45 AM

Increased reversibility of zinc/manganese dioxide batteries through electrolyte additives

251

Renewable power sources are becoming a larger contributor to our power grid in order to reduce our impact on the environment through power production. This requires the implementation of larger quantities of energy storage on the electrical grid to accommodate the intermittent nature of renewable power sources. Creating affordable high-density energy storage is key to achieving that goal. Commercial primary batteries such as zinc/manganese dioxide are relatively affordable. Thus, altering these affordable batteries to increase its reversibility is an attractive solution as an inexpensive energy storage technology. A tool-less solid-state battery test cell was designed and manufactured for testing efficiency. The test cell consists of two steel terminals, a stainless-steel compression spring and a stainless-steel current collector. Work published by an article has shown that zinc/manganese triflate electrolyte can improve the rechargeability of zinc/manganese dioxide nanorod batteries. These additives were tested for the first time on commercially available manganese dioxide battery materials. The electrodes are slurry casted cathodes with zinc metal anodes and zinc/manganese triflate electrolytes. Capacity and reversibility are tested by charging and discharging at different voltage thresholds. The results suggest zinc/manganese triflate is a viable electrolyte for increasing reversibility to be used in affordable large-scale energy storage with commercially available manganese dioxide.