Tesla to reveal details of battery 'Gigafactory'

This is good. It's also what will allow Tesla to experiment with new innovations in batteries, whether it's technologies like Air-Zinc batteries or simply innovating around how they pack the battery cells for more efficiency. Then they can sell the better batteries to the industry to move the electric cars even faster into the mainstream.

Usually when a new type of industry/product appears, in the early years you need integration in order to squeeze all the performance gains you can get out of that new product. Only later, when things get "good enough" for most people, integration is not so important anymore, and people start valuing the modularization of the industry, customization, and so on. All of this has actually happened before with the car industry. But now the cycle is being restarted because electric cars are reforming the car industry and changing the game and how a car works.