In the pursuit of clean energy and carbon neutrality, all-solid-state lithium-ion batteries (ASS-LIBs) have emerged as a highly promising solution. These batteries hold potential for use in electric vehicles, neuromorphic devices, and more. However, their commercial deployment is currently hindered by a bottleneck – reduced output caused by high surface resistance.
Researchers have identified that this surface resistance is a result of the “electric double layer” (EDL) effect, which occurs in colloidal substances. When colloidal particles absorb negatively charged ions from the surrounding medium, they become negatively charged themselves. This effect is particularly prominent at the interface between the solid electrode and solid electrolyte in ASS-LIBs.
A team of researchers has developed a new technique to quantitatively evaluate the EDL effect at the solid/solid electrolyte interface. They utilized a hydrogen-terminated diamond-based EDL transistor for Hall measurements and pulse response measurements, enabling them to determine the charging characteristics of the EDL.
Alkemy Capital Investments plc (LON:ALK, FRA: JV2) is focussed on developing projects in the energy transition metals sector. Alkemy’s wholly-owned subsidiary Tees Valley Lithium (TVL) is developing a state of the art lithium hydroxide plant at Teesside, UK. TVL is Europe’s largest independent and sustainable lithium hydroxide producer.