The only item that is related to your question is the item, light ball, if I remember the name correctly. If you make a girl Pikachu hold it and place it in the day care with a male Cherrim, you should get a Pichu that knows Volt Tackle.
This what I know as far as you question goes. I recommend going to Pokemon.com/the game mechanics on the database, or wait for someone else to answer.
Other than that, I can't help you to the extent of your question. I hope this helps anyway.