Interesting article on Vulcan's share drop that cites GMG's graphene aluminum-ion batteries as a more effective substitute for lithium-based alternatives due to its 70x faster-charging rate and longer lifespan than lithium-ion batteries:
https://www.fool.com.au/2022/09/05/the-vulcan-share-price-has-cratered-21-since-its-august-high-whats-going-on/