Designers opting for a lithium chemistry can choose from traditional cylindrical/prismatic Li-ion or the Li-poly pouch. Many factors, from thermal stability to lifetime, come into play in the decision.
By stretching and relaxing tightly twisted yarns made of carbon-based nanotube fibers, researchers devised a way to harvest and store the motion as electrical energy.
Low operating current is a factor in a wide range of applications from R&D to production. Measuring these low currents requires an instrument that provides the necessary long-term accuracy.
A multi-institutional team has developed a battery which overcomes the poor recharge performance of zinc-based cells.
The superior properties of graphene continue to push research into its application across the power landscape. One issue holds it back from going mainstream, though.
Like all technology, the lithium-ion battery has evolved over few decades, incorporating new chemistries for different applications and increased performance.