There is an urgent need to decarbonize various industry sectors, including
                    transportation; however, this is difficult to achieve when relying solely on
                    today’s lithium-ion (Li-ion) battery technology. A lack of sufficient supply
                    of critical materials—including lithium, nickel, and cobalt—is a major
                    driving force behind the research, development, and commercialization of new
                    battery chemistries that can support this energy transition. Many emerging
                    chemistries do not face the same supply, safety, and often durability
                    challenges associated with Li-ion technology, yet these solutions are still
                    very immature and require significant development effort to be
                    commercialized.
This chapter identifies and evaluates various emerging battery chemistries
                    suitable for deployment in the automotive industry and describes the
                    advantages, disadvantages, and development challenges for each identified
                    technology. Additionally, the chapter outlines development timelines,
                    contending that, to benefit from these new technologies in a decade or so,
                    commercialization needs to begin today. That includes de-risking critical
                    material supply chains and developing circular approaches. Finally, the
                    chapter proposes policy interventions to enable the development of these new
                    solutions and to allow those immature technologies to compete with
                    well-established Li-ion batteries.