positive electrode
81Dry cell — A dry cell is a galvanic electrochemical cell with a pasty low moisture electrolyte. A wet cell, on the other hand, is a cell with a liquid electrolyte, such as the lead acid batteries in most cars.While a dry cell s electrolyte is not truly… …
82Button cell — Button, coin, or watch cells A watch battery or button cell is a small single cell battery shaped as a squat cylinder typically 5 to 12 mm in diameter and 1 to 6 mm high like a button on a garment, hence the name. Button cells are used… …
83dielectric constant — a relative measurement of the degree of polarization (shift of positive charge toward the negative electrode and negative charge toward the positive electrode) that occurs when a material is placed in an electric field …
84oxidation–reduction reaction — ▪ chemical reaction Introduction also called redox reaction any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation– reduction… …
85Aluminium — Infobox aluminiumAluminium (Audio IPA|En uk aluminium1.ogg|ˌæljʊˈmɪniəm, IPA|/ˌæljəˈmɪniəm/) or aluminum (Audio IPA|En uk aluminum.ogg|/əˈluːmɪnəm/, see spelling below) is a silvery white and ductile member of the boron group of chemical elements …
86Anodizing — Anodizing, or anodising, is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. Anodizing increases corrosion resistance and wear resistance, and provides better adhesion… …
87John B. Goodenough — John Bannister Goodenough is an American professor and prominent solid state physicist. He is currently a professor of mechanical engineering and materials science at the University of Texas at Austin. He is widely credited for the identification …
88Silver-oxide battery — A silver oxide battery (IEC code: S), also known as a silver–zinc battery, is a primary cell (although it may be used as a secondary cell with an open circuit potential of 1.86 volts). Silver oxide batteries have a long life and very high… …
89Beta-alumina solid electrolyte — (BASE) is a fast ion conductor material used as a membrane in several types of molten salt electrochemical cell. There is no known substitute.β Alumina ( beta prime prime alumina ) is an isomorphic form of aluminium oxide (Al2O3) a hard… …
90Faraday's laws of electrolysis — ▪ chemistry in chemistry, quantitative laws used to express magnitudes of electrolytic effects, first described by the English scientist Michael Faraday in 1833. The laws state that (1) the amount of chemical change produced by current at… …
