Baterie litowo-jonowe
https://cleantechnica.com/2018/02/12/bmw-close-10-year-lithium-cobalt-supply-deal-just-response-news-tesla-locking-supply-deals/
https://www.bloomberg.com/news/articles/2018-02-12/in-a-change-of-heart-china-is-said-to-keep-local-ev-subsidies
Samsung SDI zamierza pozyskiwać kobalt ze zużytych baterii z telefonów komórkowych