High Voltage DC transmission systems are driving underwater power cable for renewable energy transmitted over thousands of km from Africa to UK or Australia to Singapore. Cheap solar is driving the change.
What is the real figure of amount of lithium in a battery. The quantity of 6kg is elemental lithium. The quanty of Lithium carbonate equivalalent or LCE is used in mining circles and the quantity is about 60 kg. A large opportunity for efficiency improvement is clear.