| Title | Managing Critical Materials with a Technology-Specific Stocks and Flows Model |
|---|---|
| ID_Doc | 24229 |
| Authors | Busch, J; Steinberger, JK; Dawson, DA; Purnell, P; Roelich, K |
| Title | Managing Critical Materials with a Technology-Specific Stocks and Flows Model |
| Year | 2014 |
| Published | Environmental Science & Technology, 48, 2 |
| Abstract | The transition to low carbon infrastructure systems required to meet climate change mitigation targets will involve an unprecedented roll-out of technologies reliant upon materials not previously widespread in infrastructure. Many of these materials (including lithium and rare earth metals) are at risk of supply disruption. To ensure the future sustainability and resilience of infrastructure, circular economy policies must be crafted to manage these critical materials effectively. These policies can only be effective if supported by an understanding of the material demands of infrastructure transition and what reuse and recycling options are possible given the future availability of end-of-life stocks. This Article presents a novel, enhanced stocks and flows model for the dynamic assessment of material demands resulting from infrastructure transitions. By including a hierarchical, nested description of infrastructure technologies, their components, and the materials they contain, this model can be used to quantify the effectiveness of recovery at both a technology remanufacturing and reuse level and a material recycling level. The model's potential is demonstrated on a case study on the roll-out of electric vehicles in the UK forecast by UK Department of Energy and Climate Change scenarios. The results suggest policy action should be taken to ensure Li-ion battery recycling infrastructure is in place by 2025 and NdFeB motor magnets should be designed for reuse. This could result in a reduction in primary demand for lithium of 40% and neodymium of 70%. |
| https://pubs.acs.org/doi/pdf/10.1021/es404877u |
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