LeydenJar
Nanotechnology ResearchSouth Holland, Netherlands51-200 Employees
LeydenJar Technologies is a mid-sized nanotechnology research company based in Leiden, South Holland. It develops battery materials, focusing on an anode made from silicon designed to raise the energy density of lithium-ion batteries for consumer electronics, automotive applications, and other specialized devices. The work sits at the intersection of nanotechnology and energy storage, aiming to improve performance through silicon-based chemistries. Its customers include manufacturers of consumer electronics, automotive OEMs, and other users seeking higher-density batteries. In March 2026, LeydenJar announced Silyte, a silicon-based anode, at the International Battery Seminar & Exhibit, and said samples were available. The company also received industry recognition in 2026, being ranked No. 5 in the EMEA region and receiving the Peter Wennink Tech Award 2026.