Batería de iones alcalinos y método para producir la misma

摘要

The present invention relates to methods for producing an alkali ion battery and to a secondary alkali ion battery. In accordance with the method of the invention, an alkali ion battery is assembled, wherein said battery comprises an electrolyte comprising polymerizable monomers or a cathode on which polymerizable monomers can be added before bringing in contact with the electrolyte. When charging the battery, a polymer coating is formed on the cathode of the battery. In a preferred embodiment, the composite cathode comprising the polymer is formed in situ, that is, within the assembled alkali ion battery. The alkali batteries of the invention have higher capacities; suffer less capacity loss at faster discharge rates. Furthermore, the batteries of the invention have increased battery reliability in that capacity fading decreases and rate performance increases.