Reducing U.S. Import Reliance with Substitution and Recycling Technologies

The U.S. government relies on imports for lithium, gallium, and other critical minerals essential to batteries and semiconductors. A recent report from the Government Accountability Office examines whether substitution and recycling technologies can effectively decrease this dependency. The findings indicate that while these technologies offer a path forward, timelines and technical constraints vary significantly across sectors.

Battery technology shows the most promise for near-term shifts. Lithium iron phosphate batteries offer a way to reduce reliance on cobalt, manganese, and nickel within two to three years. However, these units lack the energy density required for long-haul electric vehicles. Battery recycling is technically mature, yet domestic capacity remains insufficient. Many discarded batteries are exported for processing or end up in landfills, representing a missed opportunity to recover valuable materials like copper and lithium.

The semiconductor industry faces a longer road toward independence from imports. Current alternatives to minerals like gallium and indium do not match the performance of existing materials, making industry adoption unlikely until parity is reached. Furthermore, recycling minerals from semiconductors is currently difficult due to the low concentration of these elements in electronics and the lack of a mature market for recovered materials. Pilot-stage projects are underway, but large-scale implementation remains a future prospect.

To address these hurdles, the report outlines four key policy options. These include building domestic manufacturing capacity for substitutes, scaling up recycling infrastructure, securing a consistent supply of waste products for recycling, and funding ongoing research and development. Each path requires substantial investment and coordination between the public and private sectors. Policymakers must weigh these technological strategies alongside other approaches, such as expanding domestic mining operations.

The analysis confirms that while technical innovation can mitigate import reliance, no single solution exists. Real progress requires consistent policy support to bridge the gap between lab-tested technology and commercial-scale production. Overcoming the economic and logistical barriers to domestic recycling and material substitution is a prerequisite for stabilizing these vital supply chains.