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Leiden – {20-07-20} LeydenJar Technologies, a Dutch spin-out of the applied research institute TNO, has developed a new anode that will drastically change the battery industry. For the first time, anodes in lithium-ion batteries can be made from 100% silicon. This breakthrough offers two key benefits: batteries with a 70% higher energy density (1350 Wh/L) and 62% less CO2 emissions. The anode is ready for production and LeydenJar is preparing to massively scale-up its production capacity in the coming years.
Impact on innovations Battery performance determines the pace of innovations in many tech sectors. This hugely significant innovation, focused on the silicon anode, can accelerate this process in the short term. Two important details are that the new technology does not push up production costs and is a ‘plug-in’ solution to existing battery gigafactory’s. A 70% higher energy density will have an impact on various sectors: consumer electronics, electric vehicles and the storage of renewable energy.
Pure silicon replaces carbon So far, it has only been possible to produce anodes with a small amount of silicon, because they were mainly carbon based. As an anode material, silicon has ten times the capacity of carbon. Until now, the use of silicon was hampered by the mechanical limitations of the material. LeydenJar’s technology is derived from solar cell production technology (plasma-enhanced chemical vapour deposition, or PECVD).
70% more energy: 1350 Wh/L for more than 100 cycles Tested pouch cells were built using commercially available battery materials, such as NMC 622 cathodes, and LeydenJar’s silicon anodes. An energy density of 1350 Wh/L at start of battery life was reached, with these cells demonstrating a cycle life of more than 100 cycles at a C/2 rate. DNV GL has confirmed these results. Looking forward, LeydenJar’s CTO, Yiseop Ahn, expects to be able to significantly improve the cycle life performance.
Founder and managing director Christian Rood: ‘The significance of battery capacity is huge. Electric driving, more intelligent smartphones, electric flying… everything and everyone is waiting for better batteries. Our solution is smart and easily incorporated. And there’s no additional cost. We cordially invite everyone to use and experience the advantages of LeydenJar’s silicon anodes.’ |
| https://leyden-jar.com/ |
Frequently asked questions
How much more energy density does LeydenJar's silicon anode provide?▼
LeydenJar's silicon anode technology enables a 70% higher energy density, reaching 1350 Wh/L compared to traditional carbon-based anodes. This significant improvement was achieved using 100% silicon in the anode material.
What are the environmental benefits of LeydenJar's battery technology?▼
The silicon anode technology reduces CO2 emissions by 62% compared to conventional battery production. This makes it an environmentally friendly solution for electric vehicles and renewable energy storage applications.
Can LeydenJar's technology be integrated into existing battery factories?▼
Yes, LeydenJar's silicon anode is a 'plug-in' solution that works with existing battery gigafactories without requiring major infrastructure changes. Additionally, it does not increase production costs.
What industries will benefit from the 70% higher energy density?▼
The improved energy density will impact consumer electronics, electric vehicles, and renewable energy storage sectors. Better battery performance enables faster innovation across all these industries.
How many charge cycles can LeydenJar's tested battery cells achieve?▼
Tested pouch cells demonstrated a cycle life of more than 100 cycles at a C/2 rate with an energy density of 1350 Wh/L. The company expects significant improvements in cycle life performance in the future.