I find it interesting that nissan has still not announced a battery supplier even though they have been talking about going with a new supplier for over a year. If it were clearcut they would have announced LG chem as the supplier months ago so it would appear that they are considering other options.

http://www.dailymail.co.uk/wires/reuters/article-2756017/Nissan-faces-battery-plant-cuts-electric-car-hopes-fade.html

Also had issues with overheating and was looking to change separator.

http://www.streetinsider.com/Analyst+Comments/Polypore+(PPO)+Likely+to+Continue+as+Supplier+for+Nissan+Leaf+Battery/8637838.html

Dongfeng is one of their JV partners has still not announced their supplier (as far as I know). They announced LG chem would supply bus batteries but I haven't seen any announcement regarding supplier for the cars. Daimler will now be able to compare the batteries from LG chem and Electrovaya/Litarion. The deal with LG chem offered no timeline.

http://www.insidercarnews.com/report-mercedes-dropping-tesla-as-powertrain-battery-supplier/

Just interesting that several companies involved in this alliance is not firm on a battery supplier. There must be some competition going on in the background.