Essays about: "Electrochemical impedance spectroscopy Test cell"

Found 4 essays containing the words Electrochemical impedance spectroscopy Test cell.

1. 1. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Adam Jacobsson Trönndal; [2023]
   Keywords : Fuel cells; Phosphoric acid; Polybenzimidazole; PA-PBI; Ionic liquid; IL; High temperature proton exchange membrane fuel cell; HT-PEMFC; Electrochemical impedance spectroscopy; EIS; IL-PBI; Chemical engineering; Technology and Engineering;

   Abstract : In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. READ MORE

3. 2. A method development and complete validation of coin half-cell test procedure

   University essay from KTH/Kemiteknik

   Author : Prasad Korde; [2022]
   Keywords : Cathode; Validation; Gage R and R; Six Sigma; Impedance spectroscopy; katod; validering; Gauge R och R; sex sigma; impedansspektroskopi;

   Abstract : ”Coin cell”-tillverkningen täcker hela processen från NMC-pulver till faktisk cell- och prestandautvärdering genom att cykla celler. Nydanande utveckling av elektrodmaterialen är nyckeln till att öka energitätheten hos litium-jon/metall-batterier för elfordon och nätlagring. READ MORE

4. 3. Design of Resonant Filters for AC Current Magnification : Heating of Li-ion Batteries by Using AC Currents

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Nikolina Djekanovic; [2018]
   Keywords : Current control; injection of alternating current; internal heat dissipation; LCL filter; Lithium-ion batteries; power efficiency; resonance phenomenon;

   Abstract : Using alternating current in order to heat batteries at sub-zero temperatures is a method,which is investigated in-depth by an increasing number of study groups. The thesis considersthe resonance phenomenon with the intention to use alternating current amplificationand battery’s impedance in order to induce power dissipation inside the battery, and in thisway increase its temperature. READ MORE

5. 4. Accelerated degradation of bipolar plates in the PEMFC

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Marcus Eriksson; [2016]
   Keywords : ;

   Abstract : The aging of bipolar plates in the polymer electrolyte membrane fuel cell was evaluated using different accelerated degradation tests. From previous studies, it is well known that the startups and shutdowns of a polymer electrolyte membrane fuel cell is the primary cause of fuel cell component degradation. READ MORE