Li is extracted by hard rock mining which could cause a loss of biodiversity and destructive mining extraction could make the groundwater around the mine contaminated. The process of extraction of 1 ton of Li releases 15 tons of CO2 into the atmosphere which is a Greenhouse gas.
When extraction of Li has negative impacts on the environment then it’s a pointless argument to say that “EVs could replace petroleum engines which are not environmentally friendly”. On the other hand extraction of sodium has minimal impact on the environment.
Sodium is the 6th common element in the Earth’s crust, the higher percentage of Sodium is found in the form of Sodium Chloride which could be extracted on a large scale from the crystallization of seawater. Sodium is also 12,000 times more common compared to Li. So the high availability of Sodium over Lithium makes it a reliable battery technology.
DG Innovate plc (LON:DGI) is an advanced research and development company pioneering sustainable and environmentally considerate improvements to electric mobility and storage, using abundant materials and the best engineering and scientific practices.