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Lithium has been widely recognized as an essential metal for next-generation clean technologies. With the aim of identifying opportunities for improving lithium resource efficiency and security, this study establishes a long-term trade-linked material flow analysis framework to analyze lithium flow throughout the technological life cycle and across national boundaries during the 1994-2015 period. The results indicate that with broader purposes identified, global lithium production and consumption experienced rapid growth over the past decades. A widely distributed, actively functioning lithium trade network has been established, with the United States, China, the European Union, Chile, and Australia playing essential roles. Global lithium in-use stock, which is mainly embodied in ceramics and glass, reached 29 kilotons in 2015. The lithium stock contained in battery-related applications, together with the huge potential production of stock in future decades, represents a major opportunity for secondary lithium recovery. In the context of intensive international trade, international cooperation on lithium waste management is extremely important. It is also suggested that there is a high risk of lithium shortage for countries with strong dependence on lithium import. The establishment of domestic lithium reserves may be an option for these countries.
Sun et al. (Tue,) studied this question.