Lithium-manganese battery in which pole plate is separated from electrolyte

The utility model relates to a lithium-manganese battery in which pole plate is separated from electrolyte. The lithium-manganese battery comprises a battery part storing a pole plate group. The lithium-manganese battery is characterized in that a liquid storing device which stores electrolyte is arranged on the battery part, and the battery part is connected with the liquid storing device into a whole by an activation device. According to the lithium-manganese battery, the manner of storing the pole plate group and the electrolyte in the battery in an isolation way is adopted, so that the voltage is unavailable between an anode and a cathode when the battery is transported and stored for a long time, the self-discharge can be avoided, the activation of the release energy can be avoided since the inner short circuit caused by an external force or accidental misuse can not be formed, the safety of the battery can be improved, and the storing time can be prolonged to 10-15 years; and a large-aperture-ratio thre