Why we should get serious about mining critical minerals for clean energy

The mining of rare earth elements is perceived as a "zero-sum game" due to limited global reserves and intense competition for these critical minerals. With relatively scarce deposits and uneven distribution worldwide, countries vie for control over the resource, leading to geopolitical tensions. Furthermore, environmental degradation caused by mining, coupled with increasing demand for rare earth elements in clean energy technologies and electronics, exacerbates the competition. The complexities of extraction and processing, along with potential market control by a few dominant players, add to the challenge of ensuring sustainable access to these essential resources while considering environmental and social impacts.

Critical minerals play a crucial role in clean energy products, facilitating the transition to sustainable technologies [Figure-1]. Rare earth elements like neodymium, dysprosium, and praseodymium are vital for wind turbines and electric vehicle motors. Solar panels rely on tellurium, indium, and gallium. Lithium-ion batteries, essential for energy storage, contain lithium, cobalt, and nickel. Energy-efficient lighting incorporates terbium, europium, and yttrium. Fuel cells utilize yttrium and gadolinium. Hydrogen production and storage technologies use lanthanum and cerium. Securing a stable supply of these critical minerals is pivotal for advancing clean energy and combating climate change.

The primary components of a standard lithium-ion battery are lithium, cobalt, nickel, manganese, and graphite. These elements are essential for the battery's cathode and anode materials, electrolyte, and separator. Keep in mind that the usage of specific critical minerals can vary depending on the technology and its specific design. Moreover, ongoing research and advancements may lead to changes in the materials used in these products.

Major recyclers of critical minerals include companies like Umicore (Belgium), Solvay (Belgium), and Mitsubishi Materials (Japan). These companies have established advanced technologies and processes to recover critical minerals from various products, including electronic waste, magnets, and industrial scrap. Additionally, some countries, such as Japan and South Korea, have implemented strategic initiatives to promote critical mineral recycling due to their limited domestic reserves and the importance of these elements in critical technologies. The recycling efforts by these major players contribute to resource conservation, reduce dependency on primary mining, and support sustainable supply chains.

India's rare earth recycling industry is still in its nascent stages compared to other countries. India's recycling efforts primarily focused on electronic waste and certain industrial processes, and the critical mineral recycling infrastructure is limited at this time.

One good way to ensure traceability and sustainability of critical minerals used in lithium batteries throughout their lifecycle is the concept of a battery passport (from Global Battery Alliance, Figure-2). A battery passport, in a broader context, refers to a standardized documentation system that tracks essential information about batteries, such as their composition, origin, manufacturing process, and environmental impact. It is intended to provide transparency to consumers and stakeholders regarding the environmental and social aspects of the batteries they use, promoting responsible and sustainable practices.

Building a circular economy for rare-earth elements involves developing strategies to reduce dependency on primary mining and enhance recycling and reusing practices. This involves improving the design of products to facilitate easy extraction and recovery of rare-earth elements, establishing efficient recycling systems, and investing in advanced separation and purification technologies. Additionally, promoting international collaboration and standardizing recycling processes can optimize resource recovery. Implementing responsible sourcing and supply chain transparency is crucial to ensure sustainable practices. A circular economy for rare-earth elements can mitigate environmental impacts, secure supply chains, and promote a more sustainable and resilient approach to these critical resources.

Indian Government recently passed “The Mines and Minerals (Development and Regulation Amendment) Bill 2023”. This bill is aimed at reforming and modernizing the country's mining sector. It introduces significant changes to the existing laws governing mining activities, with a focus on enhancing transparency, attracting foreign investment, and promoting sustainable mining practices. It streamlines the licensing and approval processes, introduces competitive bidding for mineral concessions, and establishes a National Mineral Index to regulate mineral prices.

India should prioritize mining critical minerals for clean energy due to their vital role in lithium batteries and other clean energy technologies. Lithium-ion batteries, crucial for energy storage in electric vehicles and renewable energy systems, contain essential elements like lithium, cobalt, and nickel. India's demand for clean energy is rapidly growing, and securing a steady supply of these critical minerals domestically can reduce dependence on imports, enhance energy security, and promote sustainable manufacturing. By investing in responsible mining practices and fostering a circular economy for critical minerals, India can support the clean energy transition, combat climate change, and strengthen its position as a leader in the global green energy revolution.