This doesn't directly answer your question, but it's still a...

This doesn't directly answer your question, but it's still a useful video. It did the rounds of various Li-related discussion groups late last year. Key points to watch:

8.00 difference between battery v industrial grade and impurities v purities and what to look out for
12.00 Project development process - very important to be aware of this for the AZL project - AZL are at the very beginning stage of a form of project that is not yet shown to work at a production level anywhere (hard rock vs brine vs sedimentary - AZL is the latter) - but results continue to be promising
17.30 onwards discussion of lithium and the complexities of direct Li extraction

Take from the presentation what you will