Report: Sony is working on new batteries that would last 40% longer

Lithium-ion batteries (sometimes called Li-ion) have been powering our phones and laptops for so long, it's easy to forget that other — potentially more promising — battery technologies exist.

Sony, which played a key part in popularizing Li-ion batteries in the 1990s, is working on new, sulfur-based batteries, which could offer up to 40% better energy density per volume, Nikkei reports. That means battery life would last roughly 40% longer.

While promising, the technology is not without obstacles. While the first Li-S batteries were built in the late 2000s, almost none are commercially available today, mostly due to the sulfur easily degrading. It's unclear exactly how Sony plans to solve this problem with its new batteries. Read more...