Department of Chemical and Metallurgical Engineering

Hydrometallurgy and Corrosion (Hydromet)

The research group Hydromet, led by Prof. Mari Lundström, applies hydrometallurgical and electrochemical means for the recovery of metals and precious materials, development of electrolysis processes, study of corrosion properties and development of new materials from secondary raw materials.
Precious metals in crushed batteries being dissolved in a test tube. Photo: Glen Forde/Aalto Energy Platform

Our research areas:

  1. Hydrometallurgical processing of primary and secondary raw materials - from fundamental phenomena to process design with environmental impact evaluation

  2. Electrochemistry - electrochemical metal recovery, characterization, as well as corrosion processes

  3. Utilizing secondary raw materials for the development of new processes and materials in circular economy of metals

The research group is dedicated to enabling sustainable living for future generations. As a result of the increased utilisation of electrification, automation, renewable energy solutions and the continued rise in living standards, numerous challenges related to the primary production and circular economy of metals have appeared.

By a combination of the theoretical understanding of hydrometallurgy, electrochemistry, corrosion prevention, process development, process modelling, LCA analysis and state of the art analysis techniques, our researchers are at the forefront of sustainable industrial-scale process development.

Furthermore, Hydromet’s extensive collaboration with a wide variety of industrial and academic stakeholders enables the pioneering of new innovative solutions for these crucial global challenges.

Solar cell component on wood bark on ice crystals
Nordic photovoltaics using plant-based materials

The demand for metals and other raw materials is expected to rise drastically in part as the world transitions towards more sustainable energy solutions. The use of renewable energy sources requires lithium ion batteries, photovoltaic cells and wind energy – complex products that are also highly metal intensive. Our research group aims to be at the forefront of the metals circular economy through development of efficient primary processes and by improving the recycling of end-of-life materials.

Hydromet Projects

The ongoing and past projects from Hydromet group can be found here.

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Future lithium ion battery life cycle

Hydromet Facilities

Find an introduction to our facilities here.

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Mari Lundström

Latest Hydromet news:

Find here our latest activities.

Professor Mari Lundström with Tesla / Photo: Pertti Kauranen
Press releases Published:

Prof. Mari Lundström featured in Millenium Talks

Host Henkka Hyppönen and Assistant Professor Mari Lundström discuss possibilities and challenges in recycling of batteries at the laboratories of Hydrometallurgy and Corrosion.
Mari Lundström
Cooperation Published:

Hydromet group at BATCircle Seminar in Pori 3.9.2019

The first BATCircle Seminar was held in University Consortium of Pori. Prof. Lundström and the group's researchers workingwith LIB recycling, process design and primary processing attended the seminar.
BatteRIes Europe
Cooperation Published:

Hydromet at BatteRIes Europe in Brussels 24.6.2019

ETIP BatteRIes Europe officially launched at Brussels on 24.6.2019. The platform brings together all relevant stakeholders in the European batteries research and innovation ecosystem in order to develop and support a competitive battery value chain in Europe.
BATCircle logo
Research & Art Published:

BATCircle featured in Materia magazine

Aalto led Finland- based Circular Ecosystem of Battery Metals was featured in the newest Materia Magazine (2/2019 May)

New Academy Projects to be launched in September

New Academy Projects funded by the Academy of Finland involve expertise from all six Aalto schools

Organ type of image with white "veins" and small bacteria dots in red background, original image by Valeria Azovskaya

Finland continues to lead battery metals and recycling research

As demand for batteries increases, the need to find solutions is urgent.

Kuva: Aalto-yliopisto, Valeria Azovskaya

Is battery recycling environmentally friendly?

Researchers conduct life-cycle assessment to determine the actual carbon footprint of battery recycling

Battery recycling_photo Valeria Azovskaya

Recycling of batteries and responsible raw materials are Finland's asset - A major project enhanced cooperation within the battery sector

The two-year BATCircle consortium led by Aalto University has produced a lot of new research on battery recycling and raw materials and strengthened the cooperation within the sector

Recycled battery metal in a bowl

Towards carbon-neutrality in metal production – new €18 million project to develop solutions for reducing CO2 emissions

Metal processing industry has the greatest greenhouse gas reduction potential of Finland's manufacturing industries. Joint project between companies and universities is a significant step towards carbon-neutral metal production.

Metalls, CMET

Get to know us: Doctoral student Jere Partinen

Be prepared to face difficulties, but do not let them stop you.

Jere in the laboratory with safety gear holding a bottle

Get to know us: Doctoral student Taina Kalliomäki

University of applied science studies before Aalto.

Taina in lab gear in the laboratoy smiling

Get to know us: Doctoral student Pingchao Ke

Having an overseas research experience is very important for every researcher.

Pingchao Ke in the laboratory with safety gear standing in front of lab equipment smiling

Get to know us: Assistant Professor Mari Lundström

Reimain in good spirits after bad results and don't give up!

Mari Lundström

A joint laboratory of circular economy was opened in Otaniemi

The Geological Survey of Finland, VTT and Aalto University work together with industry to develop solutions for the needs of a carbon-neutral and resource-efficient society.

Kiertotalouslaboratorio, Ted Nuorivaara

The sustainable use of metals is at the core of fighting climate change – It’s no use to substitute walking with electric scooters

Electric cars and electric scooters are not environmentally friendly options if they are used as an alternative to walking or cycling, for example. Different metals are constantly needed in increasing amounts for batteries, for example. The challenge is both ecological and social.

akkumetalli kierrätys batchircle

Smarter energy

From research into electro-chemical conversion to creating policy for demand-response planning, Aalto University is working on ways to develop smarter and more sustainable energy grids

Uudentyyppisten akkujen testauksessa käytetty komponentti. Kuva: Aleksi Poutanen / Aalto-yliopisto

Small Finland is a big player in the circular economy of metals

Finland was chosen to lead the strategic planning for battery recycling in Europe. Two key reasons for this achievement are the high-level research carried out in Finland and the close cooperation within the sector.

Professor Mari Lundström Aalto University

Valuable waste

Waste incineration by-products can contain a great deal of valuable and heavy metals. These metals should not be wasted.

Tuhkaa ämpärissä/ Kuva: Mikko Raskinen

More recycling and business worth billions to the battery sector

The main objective of BATCircle is to generate added value to sectors manufacturing battery metals and chemicals, and their circular economy.

Akkujätettä ja kemikaaleja. Kuva: Glen Forde

Europe and Finland have the potential to become world leaders in battery recycling

Batteries are needed for energy storage and electric transport – both play a significant role in climate control. In addition, the continuous growth in consumer electronics usage further increases the demand for batteries.

Seminar, battery

Finland to lead European battery industry research into recycling - project will be led by Outotec and Aalto University

The European Commission has invited Finland to coordinate battery industry related research into recycling in Europe.

Akkututkija tekemässä tutkimusta / Kuva Nita Vera

New method enables the recovery of trace platinum concentrations

Renewable energy and electric traffic will increase the need for critical metals. Even the smallest quantities of metal must be recovered.

Platinalla pinnoitettu hiilipala / Kuva: Petteri Halli

Rare metals need efficient recycling

How can the valuable ingredients of batteries be recovered? What could replace bismuth, tellurium and many other rarities? These issues are being examined by the CloseLoop project.

Dissolution and precipitation of rare earth elements in the CloseLoop project.

Finland should become a model country for sustainable battery production and the circular economy

Growth of electricity powered transport increases demand for lithium batteries. Through strategic cooperation and circular economy expertise, Finland can establish itself as a leader in the battery industry.

Traffic

Professor Mari Lundström - a Jury Member for Skolar Award 2017 at Slush

Year 2017 winner Johan Seijsing received 100 000 € for fighting against antibiotic resistant bacteria.

Aalto Sustainability Hub / Mari Lundström

PhD Mari Lundström appointed as Assistant Professor in the field of Materials Science and Engineering

Dean Janne Laine has appointed Mari Lundström, PhD, as a four-year fixed-term Assistant Professor (2nd term) position from 1 December 2017.

Professor Mari Lundström Aalto University

Mari Lundström was recently interviewed in El País newspaper about circular economy

Professor Lundström discussed the need for societal responsibility and the research group's role in creating an improved circular economy.

Circular economy_Africa

Aalto coordinates a 5 M€ project that could see Finland become the model country for the circular economy of metals

Valuable metals remain in the secondary flow of industry. Their effective recycling would be ecologically-friendly and would accelerate Finland's economy.

5 million euro project could see Finland become the model country for the circular economy of metals

Effective recycling would be ecologically-friendly – and accelerate Finland's economy.

Professor Metal

Mari Lundström wants to recover and reuse metals. She approaches her task with a steely resolve.

Professor Mari Lundström Aalto University

Events:

Battery recycling_photo Valeria Azovskaya

BATCircle – Circular ecosystem of battery metals

Learn more about responsible sourcing, refining and production of active battery materials as well as efficient recycling of end-of-life batteries needed for ongoing energy and mobility transitions.

Events

Latest publications:

Ni-Co 2021 : The 5th International Symposium on Nickel and Cobalt

Corby Anderson, Graeme Goodall, Sumedh Gostu, Dean Gregurek, Mari Lundström, Christina Meskers, Stuart Nicol, Esa Peuraniemi, Fiseha Tesfaye, Prabhat K. Tripathy, Shijie Wang, Yuanbo Zhang 2021

Selective extraction of valuable metals from spent EV power batteries using sulfation roasting and two stage leaching process

Yongming Chen , Pengfei Shi, Di Chang, Yafei Jie, Shenghai Yang, Guoqing Wu, Huayong Chen, Jiannan Zhu, Fang Hu, Benjamin P. Wilson, Mari Lundström 2021 Separation and Purification Technology

The efficiency of scrap Cu and Al current collector materials as reductants in LIB waste leaching

Alexander Chernyaev, Jere Partinen, Lassi Klemettinen, Benjamin P. Wilson, Ari Jokilaakso, Mari Lundström 2021 Hydrometallurgy

Environmental Aspects of the Electrochemical Recovery of Tellurium by Electrochemical Deposition-Redox Replacement (EDRR)

P. Halli, M. Rinne, B. P. Wilson, K. Yliniemi, M. Lundström 2021 Rare Metal Technology 2021

Hazard-free treatment of electrolytic manganese residue and recovery of manganese using low temperature roasting-water washing process

Shichao He, Benjamin P. Wilson, Mari Lundström, Zhihong Liu 2021 JOURNAL OF HAZARDOUS MATERIALS

Cyclic voltammetry and potentiodynamic polarization studies of chalcopyrite concentrate in glycine medium

Maryam KHEZRI, Bahram REZAI, Ali Akbar ABDOLLAHZADEH, Benjamin P. WILSON, Mehdi MOLAEINASAB, Mari LUNDSTRÖM 2021 Transactions of Nonferrous Metals Society of China (English Edition)

Sustainable valorisation of industrial residues as an enabler for achieving the goals of the EU Green Deal: European Training Network SOCRATES

Ivan Korolev, Kirsi Yliniemi, Mari Lundström 2021 Transactions of the Institute of Metal Finishing

Selective lithium recovery and integrated preparation of high-purity lithium hydroxide products from spent lithium-ion batteries

Fupeng Liu, Chao Peng, Quanxin Ma, Jinliang Wang, Songlin Zhou, Zaoming Chen, Benjamin P. Wilson, Mari Lundström 2021 Separation and Purification Technology
More information on our research in the Research database.
Research database
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