Why should I choose UBC lead-carbon batteries over lithium batteries?
Environmentally, lead is better. It is easier to recycle and easier to produce. Lithium batteries use lithium ore which must be mined and large amounts of water are used in the production process. Lithium batteries are difficult to recycle because of the toxic chemicals they contain. Because lithium battery cells have to be electronically controlled they rely on silicon chips which are mostly made in Taiwan so there is a logistics and security of supply risk. Currently there are very few recycling facilities for lithium.
There are also concerns about the continuity of supply of lithium with China having more than half of the world’s reserves of lithium.