In Part 2 of this series we dig deeper into the specifics of laterites, one of the two main nickel ore types and look at smelting, the most common processing technique.
Heather Allain, Executive Director, Materials Technology Institute (MTI), tells us about her passion for materials and the importance of MTI’s work to provide awareness of safe, reliable and sustainable materials use.
Let's dive into this new series of articles on sustainability, treatment processes and innovations in nickel production, starting with nickel ores.
Nickel can be found in many forms from nanowires to stainless steel alloys. But what are the properties of nickel that make it an essential element in batteries?
The new EU Battery regulation has implications for nickel producers both inside and outside Europe. If they are supplying material to the EU battery chain destined for the European market all producers need to comply with the new rules.
Because the first step in reducing emissions is to measure them, the Nickel Institute has produced guidance to help nickel metal producers calculate their GHG emissions.
The European Commission published its proposed EU battery regulation in December 2020. After almost two years of discussion, the EU institutions are now in the final stages of negotiating the details. It could be adopted in December 2022, with entry into force to follow in 2023.
Materials selection for any piece of equipment or a process system is rarely a simple task, unless you are exactly replicating something successful. Often engineers will have a checklist to help them narrow down the choices, eliminating groups of materials that are not suitable for various reasons. Austenitic 300 series stainless steels containing 7-35% nickel will have most if not all of the boxes checked for being suitable where a stainless steel is desired.
Each family of stainless steels has its strengths and weaknesses. Ferritic stainless steels have useful properties – a lower rate of thermal expansion, higher thermal conductivity, strong ferromagnetism and very high resistance to chloride stress corrosion cracking (SCC). When looking at selecting any alloys, it is important to consider all the factors for successful usage.
The duplex alloys are “problem-solving alloys” for good reason, they have been successfully used in many places where carbon steels and standard austenitic alloys have failed. Just like with the austenitic family, there are many different duplex alloys to choose from, with corrosion resistance varying from moderate with the lean duplex alloys to very high with the superduplex alloys.
The selection of an alloy should be guided by careful examination of the needs of the application. Before making a switch, it’s important to fully investigate an alloy’s strengths, weaknesses and applicability to your structure.
Batteries, notably those used in electric vehicles, play an essential role in the plans of the European Commission to deliver the EU Green Deal. They are considered as a critical and strategic technology to achieve Europe´s ambitious climate change mitigation targets and to move towards green and sustainable mobility.
The proposed Regulation will introduce a wide range of sustainability requirements and promote the recycling of key battery raw materials like nickel. EU legislative work is entering a crucial phase.
Think of the largest cruise ship. Then imagine how much it weighs – just over 100,000 tonnes, in fact. Now think about 500 of those ships, and what they weigh. That is the staggering amount of new electronic waste that we generate every year.
Even small quantities of nickel in an application can make a big difference to successful deployment.
Nickel-based alloys and nickel-containing stainless are playing key roles in an emerging source of renewable energy known as thermal solar plants or concentrated solar power (CSP). Their use has enabled the industry to overcome challenges in heat transfer and thermal storage technology.
“There’s a mental hurdle to get over of how inherently gross this could be, but we know that this water is safe, and we stand by our process.”
The short answer is: yes, nickel can be a sustainable material throughout the entire value chain, from mining, manufacturing, to use and end of life – if all actors throughout the value chain step up and take their responsibility. Now let's look at the longer answer...
When Courtney Love wrote this she was not thinking about rockets. It is, however, a perfect description of the history of rocketry. Until the Elon Musk revolution.
Space is hard but nickel makes it possible. The United States of America, through the private company SpaceX, imminently expects to regain its independent way into space.
European nickel producers need a consistent regulatory framework. There must be coherence between different EU policy objectives with rules based on principles of sound science, risk-based approaches, full life-cycle thinking and impact assessments.
Most nickel production is destined for stainless steel. But a significant 8% is used in the production of alloy steels which are needed to deliver specific characteristics for specialised and often critical applications.
Should we be worried about there being enough nickel to supply the transition to electric vehicles and cleaner energy sources? Given its wide range of uses in important existing and emerging technologies, this is a frequently asked question.