LeydenJar has successfully developed and produced lithium-ion batteries with a 100% silicon anode capable of delivering 500 charge-discharge cycles without requiring any external pressure, overcoming one of the key limitations of next-generation anodes. This breakthrough achieves a major advancement in battery technologies, with profound implications for increasing the power and energy density of consumer electronics devices and energy storage industries.

The Challenge of Silicon Anode Swelling

Silicon anodes offer the promise of significantly higher energy density for lithium-ion batteries when replacing traditional graphite anodes. However, a major challenge has been silicon’s tendency to swell during charge-discharge cycles. This swelling can damage the cell internally, leading to early degradation and failure. To counter this, researchers in the field of silicon-dominant anodes typically use heavy clamps to apply high amounts of external pressure to cells during operation to maintain the structural integrity of the anode and prevent failure. Typically, this pressure is on the order of 1 MPa—equivalent to the weight of three grand pianos resting on a smartphone. This enormous pressure requirement limits the practicality of silicon anodes for many applications, particularly consumer electronics (e.g., phones, laptops, wearables) where device manufacturers require batteries which perform well without any applied pressure.

A Breakthrough in Silicon Anode Design

With LeydenJar’s new silicon anode technology, the need for external pressure has been entirely eliminated for the first time, whilst still achieving the customer-defined benchmark target of 500 cycles until 80% capacity retention, and 700 cycles until 70% capacity retention.

The breakthrough is the result of extensive research and innovation in the design of the silicon anode’s structure and morphology. The 100% silicon anode features a porous architecture that effectively accommodates silicon’s expansion and contraction during cycling, ensuring the structural integrity and long-term performance of the cell.

Unlocking New Possibilities for Consumer Electronics

The elimination of external pressure opens up new possibilities for silicon anodes in consumer electronics. By replacing graphite with ultra-thin 100% silicon anodes, LeydenJar’s technology can increase the energy density of batteries by up to 50%, offering consumers longer battery life, more energy-efficient devices, and enhanced features such as onboard artificial intelligence.

With the growing demand for lightweight, high-performance batteries that fit into increasingly compact and multifunctional devices, LeydenJar’s silicon anode technology provides a much-needed solution.

Collaborating with Industry Leaders

In the wake of this achievement, LeydenJar is actively working with leading cell manufacturers and OEMs to integrate its silicon anode technology into next-generation battery cells and devices. The company is working closely with battery cell manufacturers to ensure that its technology can be seamlessly incorporated into high-volume production and deployed in a wide range of consumer products.

“We are extremely proud of this breakthrough and the potential it unlocks for the future of energy storage,” says Christian Rood, CEO of LeydenJar. “This achievement represents the culmination of years of research and development, and we are excited to bring this technology to market. We look forward to collaborating with manufacturers to produce next-generation batteries with silicon anodes at its core.”

Future Developments and Market Expansion

Looking ahead, LeydenJar remains committed to further advancing its silicon anode technology. Additionally, the company is exploring new applications in emerging sectors such as electric vehicles, energy storage, and wearables. As LeydenJar’s technology gains traction in the marketplace, the company is positioning itself as a key player in the battery technology space, with the potential to drive the next generation of energy storage across various industries.

Press inquiries:
Ewout Lubberman
VP Corporate Development
ewout.lubberman@leyden-jar.com
+316 26 79 12 91

Commercial projects & sampling:
Tim Aanhane
Sr Business Developer
tim.aanhane@leyden-jar.com
+316 57 93 32 96

General questions:
info@leyden-jar.com