IEEE Spectrum | December 15, 2017
"The cost of today’s lithium-ion battery technology is very competitive across a variety of markets... So for these new sodium batteries to succeed, they not only have to compete against conventional technologies, but have to compete against lithium batteries—currently a tall order."
Greentech Media | March 8, 2017
"Aquion's size/weight per kilowatt-hour was approximately 15-times greater than lithium-ion. Like other competitors to lithium-ion, Aquion tried to emphasize that size/weight doesn't matter for grid storage. But all that extra material has an associated cost. The bankruptcy was probably foretold by the bill of materials."
Greentech Media | December 14, 2016
"When a battery is operated for years, many aging mechanisms appear that may be hidden during first months of testing."
Greentech Media | March 15, 2016
"Tesla can achieve cost savings through a variety of innovations related to manufacturing and battery technologies."
Greentech Media | November 16, 2015
"Zinc-air batteries are complex devices combining characteristics of both batteries and fuel cells... Fuel cells are typically limited in energy efficiency and power density because of fundamental challenges in catalyzing reactions involving oxygen gas. Zinc-air batteries face similar challenges."