What do dendrites in solid-state batteries refer to?

In solid-state batteries, dendrites refer to the needle-like structures that can form during the electrochemical processes. These dendrites are typically created from lithium ions during charge and discharge cycles. If they grow extensively, they can penetrate the electrolyte and reach the anode, leading to potential short-circuits within the battery. This poses a significant safety risk, as short-circuits can cause overheating, fires, or even battery failure.

The formation of dendrites is a critical issue in solid-state battery development, as managing or preventing their growth is essential for enhancing battery performance and longevity. Therefore, understanding the nature of dendrites and their implications is vital for engineers and scientists working in the field of electrochemistry and battery technology.