I've been arguing over the whole idea of using lithium batteries with someone who claims to "know". His claims include how environmentally damaging it is (despite his dismissal over oil and gas extraction - let alone any other mineral extraction), and that a 1KG Lithium battery requires 12.5KG of CO2 to manufacture.
To counter lithium extraction claims:
Life Cycle Analysis of Electric Car Shows Battery Has Only Minor Impact
The claim for CO2:
How “Green” is Lithium?
I don't believe the second article, but would like to find
reputable sources of information to be able to affirm or deny such claims. It's frustrating trying to clarify what the reality is versus misinformation.