LeydenJar

LeydenJar Technologies B.V. is a deep tech company specializing in technologies for electric batteries. Founded in 2016 and based in Leiden, the Netherlands, it originated as a spin-off of the Dutch scientific research organisation TNO. The company initially worked on depositing silicon as plasma for solar cells, which was unsuccessful, but the technology was found to work for making anodes for lithium-ion batteries, offering an energy density advantage with reduced production complexity and energy cost. Applications range from consumer electronics to electric cars and airplanes. LeydenJar has planned a production facility in Eindhoven to produce anodes, using an investment of 23 million euros (US$26.7 million), intended to be ready in 2027. In October 2025, it reached an agreement with Chinese battery manufacturer Highpower Technology for production of batteries with LeydenJar anodes to be shipped as OEM parts from the Netherlands to China.

LeydenJar Technologies B.V. is a deep tech company that specializes in technologies for electric batteries. It was founded in 2016 and is based in Leiden, the Netherlands. It was founded as a spin-off of the Dutch scientific research organisation TNO. The name LeydenJar stems from the 18th-century Leyden jar, which was invented in Leiden. Originally, LeydenJar Technologies was working on a technology to deposit silicon as plasma for solar cells, which wasn't successful. It was found to work for making anodes for lithium-ion batteries, giving an energy density advantage, with a reduced production complexity and energy cost. Application of such batteries can vary from consumer electronics to electric cars and airplanes. LeydenJar Technologies has planned a production facility in Eindhoven to produce anodes for these, using an investment of 23 million euros (US$26.7 million), intended to be ready in 2027. In October 2025, LeydenJar Technologies reached an agreement with the Chinese battery manufacturer Highpower Technology for production of batteries with LeydenJar anodes to be shipped as OEM parts from the Netherlands to China.

• 2026-12

  LeydenJar to begin commercial-scale silicon anode production at end of 2026[2]LeydenJar 将于2026年底启动商业化规模生产bbc.co.uk

  Reported: 2026-09-10

  Dutch tech firm LeydenJar plans to start commercial-scale production of its plasma-deposited ultra-thin pure silicon anode foil at the end of 2026, ten years after beginning development, at its factory in Eindhoven, Netherlands.

1. 1LeydenJar Technologiesen.wikipedia.org
2. 2LeydenJar 将于2026年底启动商业化规模生产bbc.co.uk