Electrode material for disposable alkaline batteries
An alkaline battery, electrode material technology, applied in the direction of primary battery electrodes, battery electrodes, dry batteries, etc., can solve the problems of reduced electrochemical reaction rate, inability to meet high power, inapplicability, etc., to reduce usage and improve thoroughness. , improve the effect of the reaction
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Embodiment 1
[0022] In a specific embodiment of the present invention, the zinc or zinc alloy in the anode material is in the form of particles, and the particles are generally in two ways, one is about 200 mesh particles, and the other is about 10-30 mesh particles. The ratio of the two types of particles is 3:10-4:10; the graphite accounts for 5%-12% of the weight of the anode material and adopts 10-30 nanometer particles; the zinc or zinc alloy includes 0.015%-0.025 % of aluminum; if adopting in the embodiment is metal zinc then mixed according to the content of the aforementioned aluminum in the form of aluminum powder or alumina powder; if adopting in the embodiment is zinc alloy, then in the production of zinc alloy according to Proportionally added. The purpose of adding aluminum to zinc or zinc alloy is to suppress the generation of hydrogen. The purpose of this ratio is to ensure that the content of aluminum in the electrolyte is 30-75ppm. If the content of aluminum in the electro...
Embodiment 2
[0029] In this embodiment, the anode active material is metal zinc or zinc alloy, the proportion of graphite in the anode is 5%, and the selected aluminum or aluminum oxide accounts for 0.025% of the zinc content. Mentioned bismuth, indium, germanium in one or two kinds of metals or metal oxides; in the cathode active material, manganese dioxide accounts for 85%, nickel oxyhydroxide accounts for 15%, and the conductive carbon particles in the cathode are graphite, accounting for 35%. , also can select other conductive carbon particles for use; The 55% potassium hydroxide aqueous solution that described alkaline electrolyte selects for use, certainly also can select sodium hydroxide or lithium hydroxide under this concentration and all can realize the present invention, but from the usefulness of battery And economic considerations are preferred with potassium hydroxide. Aluminum is chosen as the hydrogen suppressor in the examples of the present invention because it is the mos...
Embodiment 3
[0031] In this embodiment, the anode active material is metal zinc or zinc alloy, the proportion of graphite in the anode is 10%, and the selected aluminum or aluminum oxide accounts for 0.015% of the zinc content. One or two metals or metal oxides of bismuth, indium, and germanium mentioned; manganese dioxide accounts for 90% of the cathode active material, nickel oxyhydroxide accounts for 10%, and graphite is used for 30% of the conductive carbon particles in the cathode , and other conductive carbon particles can also be selected; the 53% potassium hydroxide aqueous solution selected for the alkaline electrolyte can certainly also select sodium hydroxide or lithium hydroxide at this concentration to realize the present invention, but from the performance of the battery And economic considerations are preferred with potassium hydroxide.
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