Hello guys, I loved this article.....enjoy.

I left the most important info at the bottom of the page.....What Musk says, he does....

http://fortune.com/2015/05/14/low-cost-batteries/?xid=yahoo_fortune

Following Tesla’s launch of its grid batteries two weeks ago, Tesla CEO Elon Musk said on the company’s earnings call last week that the lithium-ion battery cells that the company uses (its partner is Panasonic) are “relatively generic.” Tesla’s value instead lies in the mechanical, electrical and software engineering of the battery modules and pack, said Musk.

Ok and your building a gigafactory, and you say your lithium-ion battery cells are relatively generic. ummmm might need a new battery platform eh

Sonnenbatterie, which has 8,000 battery systems installed, is different in that it sells its battery systems mostly for homes and small businesses for daily use. The company uses lithium ion batteries from Sony (Fortelion), and Sonnenbatterie CEO Boris Von Bormann says those are the only batteries on the market today that can fulfill the daily charging and discharging needs of its residential customers.

GE has appeared to have scaled down its sodium-grid battery manufacturing division, and has more recently started to offer a lithium-ion battery grid product using third-party batteries. Kyocera is selling home energy systems using lithium-ion batteries from Samsung.

In that way, lithium-ion batteries could help pave the way for the next generation of batteries that some day will make it to market. Though, like what occurred with the solar manufacturing startups that tried to make solar panels from new materials years ago and struggled, there could be a lot of market ups and downs along the way.

Tesla’s Musk noted in the company’s latest earnings call that if there’s any breakthroughs in battery chemistry and new batteries beyond lithium-ion batteries, Tesla would be quick to implement these, too.