French researchers have announced a prototype of an 18650 sodium-ion battery. If you’ve bought a powerful LED flashlight, a rechargeable battery pack ... usually use lithium-ion technology.

Battery prices continue to tumble on the back of lower metal costs and increased scale, squeezing margins for manufacturers.

Rincell Corporation, a developer of rechargeable cells based on next-generation chemistries, today revealed that it has signed a commercial agreement with Re:Build ...