Will there be an electricity leak if the positive electrode of a lithium battery is disconnected and

There will be a leak. If the battery skin is shorted, it will also leak internally, whether it is an 18650 or a hard or soft packaged large cell, except the battery terminal. The positive electrode, the small one. The part is the positive electrode. In other places you can peel off the skin and use the voltage when measuring, if the battery itself is leaking it is basically useless and should be thrown away. This is fine, no matter if the positive and negative poles are disconnected. Turning off the switch will have the same effect. However, because the battery itself has internal resistance, there is a very small current self-discharge phenomenon, so it needs to be recharged after a period of time. It does not need to be recharged, it only takes a few minutes. 22 lithium manganese oxide cells that can be fully charged for 4 months. It doesn't even lose much power, and the discharge teste once fully charged does not lose capacity ~