SECONDARY ELECTROCHEMICAL CELL AND CHARGING METHOD

摘要

The invention relates to a secondary electrochemical cell comprising a negative electrode, a positive electrode, a porous separator which separates the negative and the positive electrode from each other, and to an aqueous, alkaline electrolyte which impregnates the electrodes and the separator, in addition to a method for charging said type of electrochemical cell. Said negative electrode comprises a current collector and a carbon-based storage material which allows the storage of electrical charge in the electrode by forming an electrical double layer (Helmholtz double layer). The positive electrode contains a current collector and nickel hydroxide and/or nickel oxyhydroxide. Said electrochemical cell comprises a housing which surrounds the electrodes, the separator and the electrolyte.