Co-founder & CEO
Profile summary: MBA at Erasmus University Rotterdam
LeydenJar Technologies
10/10Traction
LeydenJar Technologies develops pure silicon anodes that enhance the energy density of lithium-ion batteries, providing 70% more energy and enabling faster charging in smaller, lighter designs. This technology addresses the limitations of traditional battery materials, resulting in reduced weight and size while significantly lowering CO2 emissions during production.
- Battery Technology
- Clean Technology
- New Materials
Updated 5 months ago
Funding
Raised to date
$47.7MRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
across 2 rounds
EI$15.2M · Series A
Announced Sep 2025
Disclosed cumulative: $47.7M
2/2
RoundDateAmountValuationInvestors
Founders
Product
Problem
Lithium-ion batteries are limited by the energy density of traditional anode materials, hindering the development of smaller, lighter, and faster-charging devices. Traditional battery materials also contribute significantly to CO2 emissions during production.
Solution
LeydenJar Technologies has developed a pure silicon anode technology that significantly increases the energy density of lithium-ion batteries. This innovation enables batteries with up to 70% more energy, leading to smaller and lighter designs with faster charging capabilities. The porous morphology and columnar structure of the silicon anodes mitigate swelling and maintain mechanical stability during lithiation. Furthermore, the production process reduces CO2 emissions by up to 85% compared to conventional battery manufacturing.
Target Audience
The primary target audience includes manufacturers of smartphones, laptops, wearables, drones, and electric vehicles seeking to improve battery performance in terms of energy density, size, weight, and charging speed.
Features
- Pure silicon anodes for enhanced energy density
- 70% increase in battery energy compared to traditional anodes
- 10x thinner anode design
- Fast charging capabilities (7 minutes to 80% charge)
- Over 450 charge cycles
- Up to 85% reduction in CO2 emissions during production
- Porous morphology to mitigate silicon swelling
- Columnar structure for mechanical stability