If each electron do attach to the inner wall to accumulate then perhaps there can be more electrons that cannot easily attach due to the inner wall already having accumulated electrons. Which also maybe due to the inner wall having a negative charge can perhaps repel each electron as well.

Also perhaps a material that can repel magnetism maybe like a diamagnetic material maybe like a superconductor or something else like pyrolytic graphite or bismuth can repel each electron’s electromagnetism in turn repelling each electron. This maybe can prevent each electron from colliding with the inner wall. Which also perhaps a superconductor have a much stronger diamagnetic effect than pyrolytic graphite and bismuth. Which also perhaps pyrolytic graphite have a stronger diamagnetic effect than bismuth.

Since perhaps can store each electron not attached to an atom like in a solid material of a capacitor or battery, like with a capacitor with each electrode able to store each electron. Then perhaps can store more electrons of relative size to something like a capacitor or battery.

Also maybe another benefit maybe like since each electron constantly move maybe like with zero point energy then perhaps can generate energy that way. Maybe like can use each electron’s electromagnetism for energy like electric current and heat.

When mentioned storing electrons in a container as an electron bottle the difference is the idea of storing each electron not part of an atom inside the electron bottle. Compared to something like a capacitor or battery that store each electron in a more solid perhaps conductive material with each electron attached to an atom.

Also mentioned storing light in a container as a light bottle as perhaps another option.

Also mentioned other possibilities like since each electron don’t stop moving maybe like as zero point energy then can perhaps use that for generating energy like electric current / heat. Also other ideas with generating energy listed in this post. Also mentioned in this post perhaps with each electron able to attract gravity then perhaps if to move to make a gravity wave so maybe can be as a gravity thruster to use with propulsion / maybe as a warp drive.

This is different with the idea of being able to store free electrons each not attached to an atom perhaps unlike a capacitor or battery.

Also perhaps similarly with storing light inside of a container as well. Which maybe are more effectively with the radio wave spectrum of light.