Analysis of Reaction and Transport Processes in Zinc Air by Daniel Schröder

By Daniel Schröder

This e-book encompasses a novel blend of experimental and model-based investigations, elucidating the complicated approaches within zinc air batteries. The paintings awarded is helping to respond to which battery composition and which air-composition can be adjusted to take care of sturdy and effective charge/discharge biking. intimately, electrochemical investigations and X-ray transmission tomography are utilized on button phone zinc air batteries and in-house set-ups. furthermore, model-based investigations of the battery anode and the impression of relative humidity, energetic operation, carbon dioxide and oxygen on zinc air battery operation are provided. The concepts utilized in this paintings supplement one another good and yield an unheard of knowing of zinc air batteries. The tools utilized are adaptable and will very likely be utilized to realize additional realizing of different steel air batteries.

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Analysis of Reaction and Transport Processes in Zinc Air Batteries

This ebook encompasses a novel mix of experimental and model-based investigations, elucidating the complicated procedures within zinc air batteries. The paintings offered is helping to respond to which battery composition and which air-composition will be adjusted to take care of sturdy and effective charge/discharge biking.

Additional resources for Analysis of Reaction and Transport Processes in Zinc Air Batteries

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The technical application of these two methods is explained in more detail by Banhart (see [50], p. 115-119). X-ray Interaction with Matter X-rays are photons. They are elementary particles that possess energy. The energy of the photons is usually expressed in Joule or electron-volt (eV). The photons exhibit particle and wave properties at the same time. Due to this nature, three types of interaction are possible when photons pass an object: (1) penetration without interaction, (2) interaction by being completely absorbed and depositing all its energy, and (3) interaction by being scattered from the original pathway and depositing parts of its energy [51].

Thereby, oxygen is either consumed in the oxygen reduction reaction (ORR) or produced in the oxygen evolution reaction (OER), respectively. Reaction (IV) occurs either as direct four-electron transfer reaction, or as two-electron peroxide-pathway reaction with formation of a peroxide intermediate, HO2– , [10]. In this thesis, solely the direct pathway is considered. Kinoshita [11] gives a comprehensive overview on the properties and mechanisms of the ORR and the OER, as well as on how catalysts enhance the electrocatalytic activity for each reaction mechanism.

The reasons for the issues reported are not investigated in detail, and no counter-measures are proposed, for example by means of a model-based analysis for electrically rechargeable ZABs, so far. Latest Materials Research In the following, a survey on the most important research results on ZABs is given. Especially the year 2014 has brought up remarkable approaches and materials for the zinc electrode and the air electrode, which will be briefly summarized. In general, the research on materials for ZABs has intensified during the past years.

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