Breakthroughs in new battery chemistries, novel electrode and electrolyte materials, system integration for mobile, and portable and stationary applications have paved the road toward an emerging market with unlimited potential. Will lithium-ion and alternative-chemistry batteries deliver on the promise of power, energy, cost and safety in commercially available energy storage systems? The Knowledge Foundation's 5th Annual Next Generation Batteries 2015 convenes leading experts in the fields of battery materials, systems design and integration, manufacturing and commercial applications who address emerging issues driving this pivotal time in the battery industry.