Silicon EV battery breakthrough hits 500 charges, 80% life, 50% more energy
The new batteries last for 500 charges before losing 20% of their capacity and 700 charges before losing 30%.
A Netherland-based firm has announced the development and production of lithium-ion batteries with a 100% silicon anode
Capable of delivering 500 charge-discharge cycles without requiring any external pressure.
Christian Rood, CEO of the company named LeydenJar, said :
We are extremely proud of this breakthrough and the potential it unlocks for the future of energy storage,
This breakthrough could accelerate the adoption of silicon anodes in electric vehicles (EVs) and consumer electronics, addressing a critical challenge that has previously limited their use.
Silicon anodes offer substantial advantages over conventional graphite anodes, primarily due to their significantly higher energy density.
Silicon enhances batteries
Silicon can store up to 10 times more lithium ions than graphite. It could enable the development of batteries that are smaller, lighter, and capable of delivering a greater amount of power.
In the context of EVs, this translates to increased driving range, a key factor in consumer adoption. For consumer electronics, it promises longer battery life and enhanced functionality in devices such as smartphones, laptops, and wearables.
However, the widespread implementation of silicon anodes has been hindered by a significant technical challenge.
The company, explained :
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.”
However, this approach has limited the practicality of silicon anodes, particularly in applications where size and weight constraints are critical.
Unique porous architecture
LeydenJar’s engineers have overcome this obstacle by developing a 100% silicon anode with a unique porous architecture that effectively accommodates the silicon’s volume changes during cycling. This prevents damage and ensures long-term stability.
The company, added :
With LeydenJar’s new silicon anode technology, the need for external pressure has been entirely eliminated for the first time,
LeydenJar’s silicon anodes have demonstrated the ability to withstand 500 charge-discharge cycles without any external pressure.
They have achieved,
The customer-defined benchmark target of 500 cycles until 80% capacity retention, and 700 cycles until 70% capacity retention.
This remarkable feat is the result of meticulous research and innovation in the design and engineering of the silicon anode’s structure and morphology.
Increased applications and other developments
The elimination of the external pressure requirement opens up a plethora of new opportunities for the integration of silicon anodes into a wide range of devices.
The firm, highlighted :
By replacing graphite with ultra-thin 100% silicon anodes, LeydenJar’s technology can increase the energy density of batteries by up to 50%,
This translates directly to longer battery life for consumer devices, enabling users to enjoy extended usage without the need for frequent recharging.
LeydenJar is actively collaborating with leading battery cell manufacturers and original equipment manufacturers (OEMs) to integrate its silicon anode technology into their products.
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Silicon EV battery breakthrough hits 500 charges, 80% life, 50% more energy, source
