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IDTechEx Report Reviews How Nickel Is Replacing Cobalt In Electric Vehicles

IDTechEx Report Reviews How Nickel Is Replacing Cobalt In Electric Vehicles

Electric vehicle powertrains are much more materially diverse than the internal-combustion engine vehicles they replace. As a result, they are putting sudden and unprecedented strain on several raw materials industries.

One of the most crucial materials is Nickel, an essential part of the cathode in the Li-ion batteries enabling electrification. Most automakers utilise Nickel-based batteries for their balance of energy and power density; for example BMW, Hyundai and Renault use variants of the Lithium Nickel Manganese Cobalt Oxide (NMC) chemistry, while Tesla uses a Lithium Nickel Cobalt Aluminium Oxide (NCA) chemistry. China also now favors NMC chemistries, having phased out Lithium-Iron-Phosphate (LFP) chemistries which is its subsidy program.

In 2019, more than 95 percent of new electric passenger cars sold used a variant of either NMC or NCA, as detailed in the IDTechEx report “Materials for Electric Vehicles 2020-2030“. Demand for Nickel is further amplified by the trend towards higher Nickel content in cells, as manufacturers switch to chemistries like NMC 622 or 811 over the previous 111 and 523, to improve energy density further and reduce dependence on Cobalt.

Nickel is the most expensive material in electric vehicle batteries after Cobalt and is also one of the most highly used outside of the battery industry. While Nickel is often not discussed as much as Cobalt or Lithium, sustainable and environmentally conscious supply is becoming more of an issue.

In 2017, the Philippines government suspended nearly half of its Nickel mines, citing environmental concerns. Moreover, Indonesia accounts for the largest supply of Nickel and in 2019 the country banned exports of raw Nickel ore to boost their domestic processing industry. Indonesia also has the most planned developments for increasing Nickel production and is set to dominate the supply chain.

One of the issues is Nickel is typically mined from ores that contain only a very small percentage of useful Nickel, resulting in a large amount of waste material. Recently it has been announced that two Nickel mining companies in Indonesia are planning to use deep-sea disposal for the raw material waste into the Coral Triangle as they ramp up operations. Less than 20 Nickel mines worldwide use deep-sea disposal, but these new facilities would account for millions of tonnes of waste material each year. This method is typically used because it is cheaper than the alternatives of dam storage or converting the raw materials to useful products.

Many automakers are aware of the environmental concerns in Nickel supply and that it can undermine the environmentally friendly message of the electric vehicle. Most, including the likes of PSA, VW and Tesla, have pledged to reduce the environmental impact of their batteries. This becomes challenging as the choice of suppliers that can meet the demands of these large automotive companies are limited. In the future, Nickel producers will have to prove that their practices are environmentally friendly if they want to sell into the European and American markets, where the automotive industry is making this a priority. Elon Musk has been quoted as saying that Tesla would give a “giant contract” to any companies that could mine Nickel “efficiently and in an environmentally sensitive way” (Financial Times).

As the electric vehicle market grows with the trend towards higher Nickel chemistries, IDTechEx expects the demand for Nickel from electric vehicle batteries to increase ten-fold by 2030 compared to 2019. This makes the environmentally-conscious supply of Nickel a serious issue going forward for the electric vehicle market.

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Additive Manufacturing Metals Outlook: Nickel Superalloys

Additive Manufacturing Metals Outlook: Nickel Superalloys

In the metal additive manufacturing (AM) segment, nickel superalloys are becoming one of the most advanced and high value metals amongst all printable metals in 2019. According to a new report by SmarTech Analysis, the nickel powder group of alloys is expected reach $450 million in worldwide sales to users of metal 3D printing technologies by 2027. This growth will be driven by a similar expansion in other popular nickel alloys, which has been seen over the last year within the nickel superalloy subsegment.

Nickel alloys are some of the most widely used materials for applications with an extreme operating environment, making them commonly found in industries and applications in which metal AM techniques are already being explored and applied. This is a net advantage for the development of the nickel AM market, because the historical use of metal AM techniques like laser powder bed fusion have been, for the most part, relegated to high performance, high value components due to the cost structure of the technologies, the report said.

The early R&D in nickel superalloys for aerospace engine components was also successfully ported to other industries where similar turbomachinery applications require performance similar to jet engines, especially in power generation for oil and gas and general energy markets, making materials like Hastelloy some of the most widely printed materials today. More recently, however, nickel materials have begun to gradually creep into other areas of application beyond the areas of turbomachinery and aerospace propulsion systems. SmarTech anticipates that in the near term, nickel alloys will continue to see widespread expansion, especially through the development of printing parameters specific to new commonly used nickel alloys outside of the typical superalloys used today, for alloys such as the Monel family, Invar family, Incoloy family, and various Haynes nickel materials.

 

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Solid Ceramic Endmills For Machining Nickel-Based Superalloys

Solid Ceramic Endmills For Machining Nickel-Based Superalloys

Following the steady increase in the processing of nickel-based high temperature superalloys (HTSA) such as various grades of Inconel, Incoloy, and Haynes, amongst others, in the aerospace industry, and the demand to decrease production costs, ISCAR has launched solid ceramic endmills that enable increasing the cutting speed by up to 50 times when compared to carbide tools, drastically saving machining hours and reducing production costs.

Available in two configurations—E3, with three flutes for shouldering applications, and E7, with seven flutes, feed mill style for rough applications—the new endmills can also be successfully applied to productive roughing of cast iron and graphite.

The solid ceramic endmills are produced from two ceramic grades: IS6, designed specifically for machining HTSA, and IS35, intended for cutting mainly cast iron and graphite. They are available in 6mm to 20mm diametres.

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