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- Total Li Demand in the Announced Pledges Scenario
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- Total Li demand in Net Zero Emissions by 2050 scenario
The most recent political events and regulatory context have highlighted on several occasions a growing demand for lithium (Li), primarily fuelled by the increasing use of lithium-ion batteries (LIBs). The concentration of the largest mining sites for Li outside of Europe leads to a strong dependence on third countries, which can pose economic and strategic challenges for the EU. To mitigate the resources scarcity, the EU has implemented regulations promoting sustainable battery practices, and is actively exploring diversified domestic resources of Li, such as the geothermal brines located in the Rhine Graben region.
Researchers at Fraunhofer ICT recently attended the German Geothermal Conference in Essen (Germany), where they submitted a scientific poster that portrays the characteristics of the Li resources identified in the geothermal brines in the Rhine Graben region and the challenges raised by the Li extraction. Due to the high concentration of salt load, the selective separation of Li and sodium (Na) remains the primary challenge to solve. Within the LiCORNE project, researchers are testing a manganese-based (Mn-based) adsorption setup to provide Li enriched solutions from geothermal brines. Despite recent developments, impurities persist, and additional separation steps are required.
During the German Geothermal Conference, the research team at Fraunhofer ICT presented the free-flow electrophoresis (FFE) used for the selective separation of Li and Na ions. This separation relies on the ions’ migration velocity in an electrified field, being significantly influenced by their charge, size and hydrate shell.
The main advantage of the FFE lies in its capacity to prevent mixing of individual streams with the background eluent, allowing separate collection of the individual streams at the end of the chamber. Additional benefits of the FFE:
Testing the method with different parameters, various concentrations of the sample solution and altering the eluent solution, researchers reported a complete separation of Li and Na ions by FFE, with over 80% separation efficiency. Future efforts will focus on testing the actual desorption solutions, optimizing throughput, scaling up, and reducing costs.
Download the original poster, available in German, here
Late September 2023, ministers, industry leaders, investors, international organisations and civil society convened at IEA (International Energy Agency) headquarters for first-of-its-kind summit to discuss the future of critical minerals.
Being the first international IEA Critical Minerals and Clean Energy Summit, the event applauded governments’ enthusiasm to deploy the clean energy transition, as well as their quick actions to ensure secure and sustainable supplies of critical minerals. With a concerning scenario portraying surging demand of minerals such as lithium, cobalt, nickel and copper, driven by the deployment of clean energy technologies, the first international summit identified six key actions to ensure secure, sustainable and reliable supplies of critical materials:
The majority of these strategic actions are already included in the core of the LiCORNE project. Launched in October 2022, LiCORNE is designed to establish the first European Lithium complete supply chain. Its main objective is to increase the processing and the refining capacity for battery-grade chemicals from resources available in Europe: ores, brines, tailings and off-specification battery cathode materials (waste).
With increased interest for this first international summit, the IEA will hold a Ministerial Meeting next year, in February, which will provide countries with a platform to evaluate the significance of critical minerals in the global energy security and climate action. Based on shared experiences and information, the event will emphasise transparent and resilient supply chain strategies, and unveil the next phase of the IEA Voluntary Critical Mineral Security Programme.
Photo © IEA
Lithium (Li), a highly versatile element, finds extensive applications in diverse industries including ceramics, glass, fuel cells, metallurgy, pharmaceuticals, aerospace, and lithium-ion batteries (LIBs). With the demand of LIBs increasing, particularly fueled by portable electronics and electric vehicles, the global lithium industry is undergoing rapid expansion. Due to its lightweight and reactive properties, Li is considered the essential component in high-energy-density batteries, playing a crucial role in the future of sustainable energy. But the extraction of Li resources has become a critical concern.
VITO employs an innovative process known as Gas-Diffusion Electrocrystallisation (GDEx) technology to achieve the direct extraction of Li, that leverages gas-diffusion electrodes to orchestrate a meticulously controlled chemical transformation. By precisely manipulating its parameters, GDEx enables synthesis with minimal chemical additives, marking a significant milestone in this field. The unique design of the reactor maintains a consistent set of conditions, and by simply altering the inlet solution, it can produce the desired target structure. This approach is highly scalable and promising for the future of Li extraction and synthesis.
Following comprehensive investigations performed on synthetic solutions, VITO fine-tuned the operational parameters to be applicable to natural brine solutions and leachates. The experiments carried out on diverse brine solutions yielded remarkable results, with a Li removal efficiency exceeding 95% from these solutions. The planned process involves producing layered double hydroxide structures which can further be downstreamed to battery cathode material.
Learn more about the GDEx process in the previous article: Recovery as battery-grade chemicals
©Adobe Stock Photos, Salinas Grandes, a huge salt flat in Jujuy and Salta, Argentina.
In July 2023, International Energy Agency (IEA) released its inaugural “Critical Minerals Market Review”, along with their new online data explorer. Between 2017 and 2022, the demand of lithium (Li) tripled, primarily due to the energy sector’s reliance on it. According to the report, the market for energy transition minerals is poised for continued rapid growth, placing increasing pressure on the global mining industry.
Looking in particular at the Li price fluctuations, the study reports increases in 2021 and early 2022, accompanied by strong volatility. However, the latter half of 2022 and the beginning of 2023 saw more stable trends, albeit still remaining above historical averages.
Not unexpected, investment in the development of critical minerals, particularly Li, recorded a significant surge of 30% in 2022, building upon a previous increase of 20% in 2021. The IEA analysis examined the investment patterns of 20 major mining companies actively involved in the production of minerals essential for the energy transition. It revealed a substantial rise in capital expenditure specifically allocated to critical minerals. This upward trend can be attributed to the favourable momentum propelling the adoption of clean energy solutions, such as the most recent EU Regulation on Batteries and Waste Batteries. According to the IEA analysis, companies specialising in Li development witnessed 50% rise in their investment spending. Fuelled by the rising demand of electric vehicles, large industrial groups are competing now in a quest to secure mineral supplies: General Motors announced a 650 million USD in Lithium Americas, while Tesla confirmed already plans to build a Li refinery in Texas (USA).
Along with its ‘Critical Minerals Market Review 2023’, the IEA also launched the IEA Critical Minerals Data Explorer, an interactive tool that facilitates access to the agency’s projection data.
The IEA analysis conclusions raise the concern of the diversity supply. The LiCORNE project was launched at the encounter of European aspirations to advance the energy transition. The project aims to increase the European Lithium (Li) processing and refining capacity to produce battery-grade chemicals from ores, brines and off-specification battery cathode materials. Over a span of 48 months, from the 1st of October 2022 to the 30th of September 2026, eight research and development centres in Europe will investigate no less than 14 new technologies for extracting, recovering and refining Li.
Currently in its first year, the LiCORNE project completed the task of characterising and providing materials for the R&D activities. Most of the materials are sourced from European resources, including spodumene and Li-rich mica from mines in France and Austria, and geothermal brine sampled from the Upper Rhine Graben (France and Germany). The synthetic brine is prepared in UK. Only continental brine and off-specification cathode material originate from non-European countries – Chile and Korea.
For more information, refer to the detailed article, and explore the available Li resources in Europe.
On 16 March 2023, the European Commission proposed a comprehensive set of priority actions to ensure the EU’s access to a secure, diversified, affordable and sustainable supply of critical raw materials (CRMs). With the demand for CRMs expected to skyrocket, Europe needs to mitigate the risks associated with the supply chain of strategic minerals, as highlighted by shortages in the aftermath of the Covid-19 and the energy crisis.
During the official statement, President of the European Commission, Ursula von der Leyen highlighted:
“This Act will bring us closer to our climate ambitions. It will significantly improve the refining, processing and recycling of critical raw materials here in Europe. Raw materials are vital for manufacturing key technologies for our twin transition – like wind power generation, hydrogen storage or batteries. And we’re strengthening our cooperation with reliable trading partners globally to reduce the EU’s current dependencies on just one or a few countries. It’s in our mutual interest to ramp up production in a sustainable manner and at the same time ensure the highest level of diversification of supply chains for our European businesses.”
In addition to an updated list of critical raw materials, the Act presents a set of clear benchmarks for domestic capacities along the strategic raw material supply chain, and to diversity EU supply by 2030:
Eurometaux’s immediate reaction, openly stated by the Director General Guy Thiran, emphasised : “Europe has a meaningful project pipeline for the mining, processing and recycling of base metals, battery materials, and rare earths (inside and outside its territory). These can be brought online by 2030 under the right conditions, adding to Europe’s existing production with the same guarantee of high climate and environmental performance.”
Although the proposed Regulation needs to pass the European Parliament‘s and the Council of the European Union’s evaluations before adoption and entry into force, the initiative sets a clear regulatory framework to support the development and the sustainable exploitation of domestic Li resources.
Read the official press release
VITO achieves direct lithium extraction, using the Gas-Diffusion Electrocrystallisation (GDEx) technology. GDEx uses gas-diffusion electrodes to achieve this goal, by producing in-situ the necessary quantities of mild chemicals, which in turn form precipitates containing lithium.
During this period, the GDEx team has conducted experiments with synthetic solutions. The effect of adding chemical supplements to the process is being investigated to optimise the lithium recovery yield and selectivity vs. competing ions in solution. After optimising the GDEx process with synthetic streams and learning about the precipitating mechanisms, we are looking forward to extending the process in various geothermal brine solutions obtained from the consortium partners. After precipitation in the form of layered-double hydroxides, the GDEx team will investigate the downstream steps to obtain battery-grade lithium hydroxide.
More information about the GDEx process can be found at http://gdex.vito.be
Focusing on mechanochemical (MC) processing, the recovery of high-value components from the cathode waste supplied by UMICORE is planned to be performed within Task 4.3.
The ball milling process of waste cathode material was optimised at laboratory scale using different reducing agents such as Al, Ca, and their mixtures. The role of the MC conditions (ball-to-sample ratio (B/S), ball milling time, and nature of the reducing material) was further investigated and analysed. This showed the kinetics of the MC-induced reduction reaction is sensitive to multiple processing parameters.
After the reduction reaction, the powder X-ray diffraction (XRD) analysis revealed the formation of metallic composites and Al/or Ca oxides, as illustrated in the figure below. The upcoming research will be dedicated to investigating and optimising the aqueous leaching conditions of the ball-milled samples at laboratory scale.
XRD patterns of the MC processed cathode waste materials with Al and Ca as reducing agents
The main objective of the LiCORNE project is to increase the European Lithium (Li) processing and refining capacity to produce battery-grade chemicals from ores, brines and off-specification battery cathode materials. For 48 months (from the 1st of October 2022 to the 30th of September 2026), 14 new technologies to extract, recover and refine Li will be investigated by eight R&D centers in Europe.
Work Package 2 (WP2) is dedicated to the characterisation and supply of materials to the R&D activity. Following the first half-year of the project, a variety of materials were sent to lab partners for technology investigation. These materials can be sorted into three distinct groups:
Most of the materials are from European resources, spodumene and Li-rich mica being sources from mines in France and Austria, and geothermal brine sampled from the Upper Rhine Graben (France and Germany). The synthetic brine is prepared in UK. Only continental brine and off-spec cathode material are coming from non-European countries – Chile and Korea (see featured figure).
After 6 months of activities, all laboratories, except those conducting experiments related to the beneficiation of spodumene ore, have sufficient material to start their experiments.