This statistic represents material intensity calculations for nickel metal hydride batteries, by chemical element. In a high intensity trajectory, such batteries are estimated to consist of 730 grams of Lanthanum per battery. The high material content case* represents a likely value for current-generation technology.
Material intensity calculations for NiMH batteries as of 2010, by trajectory and chemical element
(in kilograms per battery)
* According to the source, an n/p ratio of 1.8 is assumed for the high material content case, which represents a likely value for current-generation technology. For low material content, an n/p ratio of 1.2 is assumed, which represents a lower value that is technically feasible by the medium term. The n/p ratio is the assumed ratio of negative to positive electrode capacity.
Estimates for calculating positive electrode capacity were from Toyota (2009) and EERE (2009). Estimates for the n/p ratio and weight ratio of negative electrode alloy were provided by EERE (2010). Alloy composition is based on Linden’s Handbook of Batteries (Reddy 2011).
According to the source, the material intensity of elements used in NiMH batteries was calculated based on several assumptions about capacity and chemistry (i.e., anode and cathode composition) for a battery with a power rating and cell voltage equivalent to the battery used in a third-generation Toyota Prius. NiMH material intensity for batteries used by other manufacturers would likely vary with battery performance specifications and the composition of the battery alloy.
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US Department of Energy. (December 1, 2011). Material intensity calculations for NiMH batteries as of 2010, by trajectory and chemical element (in kilograms per battery) [Graph]. In Statista. Retrieved January 25, 2022, from https://www.statista.com/statistics/215278/material-intensity-calculations-for-nimh-batteries-by-element/
US Department of Energy. "Material intensity calculations for NiMH batteries as of 2010, by trajectory and chemical element (in kilograms per battery)." Chart. December 1, 2011. Statista. Accessed January 25, 2022. https://www.statista.com/statistics/215278/material-intensity-calculations-for-nimh-batteries-by-element/
US Department of Energy. (2011). Material intensity calculations for NiMH batteries as of 2010, by trajectory and chemical element (in kilograms per battery). Statista. Statista Inc.. Accessed: January 25, 2022. https://www.statista.com/statistics/215278/material-intensity-calculations-for-nimh-batteries-by-element/
US Department of Energy. "Material Intensity Calculations for Nimh Batteries as of 2010, by Trajectory and Chemical Element (in Kilograms per Battery)." Statista, Statista Inc., 1 Dec 2011, https://www.statista.com/statistics/215278/material-intensity-calculations-for-nimh-batteries-by-element/
US Department of Energy, Material intensity calculations for NiMH batteries as of 2010, by trajectory and chemical element (in kilograms per battery) Statista, https://www.statista.com/statistics/215278/material-intensity-calculations-for-nimh-batteries-by-element/ (last visited January 25, 2022)
