Panasonic is slowly lining up it's suppliers for their Li-ion batteries.

Panasonic sign LOI for development of new li-ion battery seperator (Nov 2014)

http://www.japantimes.co.jp/news/2014/11/06/business/corporate-business/panasonic-polypore-to-collaborate-on-new-battery-technology/?utm_source=rss&utm_medium=rss&utm_campaign=panasonic-polypore-to-collaborate-on-new-battery-technology#.VFtkYEuppuZ

Panasonic moving towards aggressive acquisitions (Nov 2014)

http://www.zdnet.com/panasonic-shifts-from-restructuring-to-aggressive-acquisitions-7000035333/

Panasonic launches the Panasonic Energy Corporation North America for the Gigafactory (Oct 2014)

http://www.pv-magazine.com/news/details/beitrag/panasonic-announces-launch-of-lithium-ion-battery-unit-at-tesla-gigafactory_100016745/#axzz3II25t600