Sigma Lithium Limited

Sigma Lithium (SL) have developed a 3D-Li anode battery-technology that is safer, more cost-competitive and exhibits higher power densities than current state-of-the-art. SL's 3D Li anode offers a lightweight/recyclable/porous carbon fibre scaffold coated with Li, which increases the gravimetric/volumetric energy densities and enables the safe use of high...

Li-ion batteries are the most widely used rechargeable battery technologies in various scale application from small portable electronic devices, to electric vehicles and grid storage. Employing graphite as the anode material, they offer energy densities of ~100-265 Wh/kg. However, high energy densities (\>200 Wh/kg) are only reached at slow charge rates. ...

Sigma Lithium proposes a proprietary patented method of forming porous 3D metallic lithium electrodes for applications in lithium-based batteries. This metallic lithium electrode technology will enable the creation of a new generation of batteries, with higher energy density, longer cycle counts, and improved efficiency in high-power applications. Our tec...

Manufacturing advances and miniaturisation are typically focussed upon as key enablers for new technologies, however this has led to a paradoxical state where manufacturing capabilities exceed our ability to power devices. In this increasingly mobile world, the focus has shifted to batteries as the key to the realisation of the next generation of autonomo...

The Oxford based Sigma Lithium Ltd has developed a new anode material for primary and rechargeable lithium and lithium-ion batteries. The new technology has a potential to deliver a two fold increase in energy density for advanced lithium-ion batteries. The company is applying for the patent protection to secure its priority for batteries used in a variet...