Visión

Battery recycling – a solvent solution for critical mineral supplies?

As sales of electric vehicles accelerate, so does the need to recycle their batteries. This article explores why battery recycling matters for the environment, for raw material supplies and for the economy. It also looks at the evolving technologies, regulations, and business models that make battery recycling a promising long-term investment opportunity.

Autores/Autoras

    Co-Portfolio Manager

Resumen

  1. Disposal of EV batteries poses environmental risks
  2. Batteries are a source of highly demanded critical metals
  3. Recycling technologies are accelerating but maturity and scale needed

Powerful potential

Electric vehicles (EVs) are a cornerstone of the global transition to a low-carbon economy. But while they eliminate tailpipe emissions, their batteries – packed with critical raw materials like lithium, nickel, and cobalt – pose a new sustainability challenge for the environment.

Figure 1 - Recycling rates are rising but currently inadequate

Ratio of recovered material to annual demand for important critical metals.
Source: Robeco, 2024.

Recycling batteries offers a multi-functional solution that reduces environmental waste and pollution, secures access to critical minerals, while also promoting cost and resource efficiency by reusing materials in the production process.

Despite its powerful potential, recycling must overcome some hurdles of its own. First, EV batteries are resource-intensive to produce and difficult to sustainably dispose. Second, the recycling industry is still nascent, with profitability hinging on volatile raw material prices and regulatory support.

Moreover, questions remain on whether recycling can become a reliable, scalable, and profitable part of the battery value chain. Though now seen as economically unprofitable at best and waste at worst, framed another way, end-of-life batteries can be seen as small mobile mines. In a world facing geopolitical tensions and looming raw material shortages, they represent a powerful opportunity to recover critical minerals and reshape supply chains.

For companies, battery recycling could become a key lever for reducing emissions, lowering supply chain risks, and unlocking new business models and revenue streams. For investors, it’s a chance to get ahead of a structural shift – one that’s being shaped by regulation, innovation, and the growth of EV adoption.

A ‘battery’ of recycling solutions

Today and for the near future, most recycled material will continue to come not from used EVs but from production scrap – defective or excess batteries generated during manufacturing.

Moreover, battery reuse is also a potential option in some markets. Norway is an excellent case study. High EV adoption rates mean it has a steady feedstock of end-of-life (EOL)1 batteries most of which are being repurposed for second-life applications.2

Table 1 – Norway’s first-hand experience in second-hand markets (Li-ion EV batteries)

Norway leads Europe in EV adoption and reuse of lithium-ion (Li-ion) batteries at the end of their first EV life. In 2024, more than 93% were used in second life applications such as stationary energy storage.
Source: Norwegian Environmental Accounts for End-of-Life Collection & Recycling, April 2025.3

Complex forms of recycling are also in the works including hydro- and pyro-metallurgy which use water-based solutions or intense heat to extract and recover metals from batteries and electronic waste. Hydrometallurgy is currently the leading recycling technology, offering high recovery rates with lower energy use than pyrometallurgy.

Direct recycling – which allows the recovery, regeneration, and reuse of battery components directly without breaking down the chemical structure – is promising but remains unproven at scale.

Smart Mobility D USD

performance ytd
17,59%
Performance 3y
7,81%
morningstar
3 / 5
234
Ver el fondo

Rentabilidades pasadas no garantizan resultados futuros. El valor de las inversiones puede fluctuar.

The industry is coalescing around three main recycling technologies:

  • Hydrometallurgy: The current standard, especially in Asia. It involves dissolving metals from shredded battery material (‘black mass’) using chemical solutions (see Figure 2).

  • Pyrometallurgy: A high-temperature process that’s energy-intensive but simpler in terms of material handling.

  • Direct recycling: A lab-scale approach that preserves the integrity of electrode materials, particularly cathode materials, but still faces challenges with commercial scalability.


Figure 2 – Battery recycling value chain of (hydrometallurgical process)

Source: Robeco, 2024.

China dominates…

From a market perspective, China is far ahead, accounting for over 80% of global recycling capacity. Most of the major players are vertically integrated which means they are battery manufacturers or cathode producers that have added recycling at the back end of production. Those include CATL and GEM Co. which are not only battery giants but also recycling powerhouses.

Elsewhere, the picture is more fragmented. Europe and the US are still building capacity, with a few promising pure-plays such as Redwood Materials emerging. Moreover, South Korea’s SungEel HiTech is also a pure-play to monitor given its ties with the Samsung Group.4

Our analyses show the most viable business model for non-vertically integrated players appears to be toll manufacturing – charging a fixed fee per metric ton of material processed. This model insulates recyclers from raw material price volatility and aligns with the Extended Producer Responsibility (EPR) frameworks emerging in the EU and some US states.5

Acceda a las perspectivas más recientes

Suscríbase a nuestro newsletter para recibir información actualizada sobre inversiones y análisis de expertos.

No se lo pierda

The EU legislates…

Meanwhile, the urgency for solutions is building, especially in Europe. The EU’s New Battery Regulation, introduced in 2024, mandates progressively higher levels of recycled content in EV batteries, alongside strict recovery and recycling efficiency targets. By 2031, new batteries sold in the EU must contain at least 16% recycled cobalt, 6% recycled lithium, and 6% recycled nickel, with even higher thresholds by 2036.6

These requirements are legally binding and will directly impact the ability of manufacturers to sell into the European market. This regulatory push is accelerating demand for high-quality recycled materials and creates a clear incentive for OEMs and battery producers to secure reliable recycling partnerships.

At the same time, geopolitical tensions and resource nationalism are making supply chain resilience a top priority. Recycling offers a way to reduce dependence on mined materials and to localize critical parts of the battery value chain – especially for regions such as Europe that lack domestic mining capacity. In this context, battery recycling is not just a sustainability initiative – it’s a strategic imperative.

We are encouraged that some of our integrated battery manufacturers holdings are already at the forefront of the transition

The investment outlook

The outlook is promising but nuanced. Our model suggests that by 2035, recycled materials could meet over 12% of global demand for nickel and cobalt, and nearly 4% for lithium. That’s significant but still means recycling alone won’t solve supply constraints.

Commercialization is underway, but uneven. Most companies are still in the early stages – building capacity, refining processes, and securing feedstock. The economics are highly sensitive to raw material prices, and capital intensity remains a barrier.

We’re closely monitoring developments across the battery recycling value chain and are particularly encouraged that some of our integrated battery manufacturers holdings are already at the forefront of the transition. This has strengthened our conviction in their long-term investment cases and reaffirmed our confidence in the strategic foresight of their management teams.

Their leadership in adapting to evolving sustainability requirements means they are well positioned to capture future value and mitigate future risks. Moreover, we also believe investable opportunities will emerge where regulation, technology, and business models align – such as toll recyclers with strong OEM partnerships.

Footnotes:

1The performance of EOL batteries drops to only 20-30% of its original capacity, making it insufficient for EVs but suitable for other applications.
2In February 2025, 95% of all new passenger cars sold in Norway were electric powered models. Bloomberg, March 2025.
3Miljøregnskap for Autoretur 2024, Rapport No. 10-2025, Samfunnsøkonomisk Analyse AS. April 2025.
4According to Bloomberg, Samsung SDI and C&T have a combined ownership of 13% of SungEel HiTech.
5The Extended Producer Responsibility (EPR) policy approach is a group of economic instruments that raise revenues and set incentives for the collection and recovery of material at the post-consumer stage of the product lifecycle. OECD, Policy Perspectives, Policy Paper No. 41. 2024.
6Regulation (EU) 2023/1542 concerning batteries and waste batteries


Important note:

The companies referenced are for illustrative purposes only in order to demonstrate the investment strategy on the date stated. The companies are not necessarily held by the strategy. This is not a buy, sell or hold recommendation, nor should any inference be made on the future development of the company.

Mantengamos la conversación

Manténgase al día de los constantes cambios en inversión sostenible y factorial, tendencias y crédito.

No se lo pierda

El objetivo de Robeco es proporcionar a sus clientes unos rendimientos y soluciones de inversión superiores para que consigan sus objetivos financieros y de sostenibilidad.

Información importante
Los Fondos Robeco Capital Growth no han sido inscritos conforme a la Ley de sociedades de inversión de Estados Unidos (United States Investment Company Act) de 1940, en su versión en vigor, ni conforme a la Ley de valores de Estados Unidos (United States Securities Act) de 1933, en su versión en vigor. Ninguna de las acciones puede ser ofrecida o vendida, directa o indirectamente, en los Estados Unidos ni a ninguna Persona estadounidense en el sentido de la Regulation S promulgada en virtud de la Ley de Valores de 1933, en su versión en vigor (en lo sucesivo, la “Ley de Valores”)). Asimismo, Robeco Institutional Asset Management B.V. (Robeco) no presta servicios de asesoramiento de inversión, ni da a entender que puede ofrecer este tipo de servicios, en los Estados Unidos ni a ninguna Persona estadounidense (en el sentido de la Regulation S promulgada en virtud de la Ley de Valores). Este sitio Web está únicamente destinado a su uso por Personas no estadounidenses fuera de Estados Unidos (en el sentido de la Regulation S promulgada en virtud de la Ley de Valores) que sean inversores profesionales o fiduciarios profesionales que representen a dichos inversores que no sean Personas estadounidenses. Al hacer clic en el botón “Acepto” que se encuentra en el aviso sobre descargo de responsabilidad de nuestro sitio Web y acceder a la información que se encuentra en dicho sitio, incluidos sus subdominios, usted confirma y acepta lo siguiente: (i) que ha leído, comprendido y aceptado el presente aviso legal, (ii) que se ha informado de las restricciones legales aplicables y que, al acceder a la información contenida en este sitio Web, manifiesta que no infringe, ni provocará que Robeco o alguna de sus entidades o emisores vinculados infrinjan, ninguna ley aplicable, por lo que usted está legalmente autorizado a acceder a dicha información, en su propio nombre y en representación de sus clientes de asesoramiento de inversión, en su caso, (iii) que usted comprende y acepta que determinada información contenida en el presente documento se refiere a valores que no han sido inscritos en virtud de la Ley de Valores, y que solo pueden venderse u ofrecerse fuera de Estados Unidos y únicamente por cuenta o en beneficio de Personas no estadounidenses (en el sentido de la Regulation S promulgada en virtud de la Ley de Valores), (iv) que usted es, o actúa como asesor de inversión discrecional en representación de, una Persona no estadounidense (en el sentido de la Regulation S promulgada en virtud de la Ley de Valores) situada fuera de los Estados Unidos y (v) que usted es, o actúa como asesor de inversión discrecional en representación de, un inversión profesional no minorista.


El acceso a este sitio Web ha sido limitado, de manera que no constituya intento de venta dirigida (según se define este concepto en la Regulation S promulgada en virtud de la Ley de Valores) en Estados Unidos, y que no pueda entenderse que a través del mismo Robeco dé a entender al público estadounidense en general que ofrece servicios de asesoramiento de inversión. Nada de lo aquí señalado constituye una oferta de venta de valores o la promoción de una oferta de compra de valores en ninguna jurisdicción. Nos reservamos el derecho a denegar acceso a cualquier visitante, incluidos, a título únicamente ilustrativo, aquellos visitantes con direcciones IP ubicadas en Estados Unidos. Este sitio Web ha sido cuidadosamente elaborado por Robeco. La información de esta publicación proviene de fuentes que son consideradas fiables. Robeco no es responsable de la exactitud o de la exhaustividad de los hechos, opiniones, expectativas y resultados referidos en la misma. Aunque en la elaboración de este sitio Web se ha extremado la precaución, no aceptamos responsabilidad alguna por los daños de ningún tipo que se deriven de una información incorrecta o incompleta. El presente sitio Web podrá sufrir cambios sin previo aviso. El valor de las inversiones puede fluctuar. Rendimientos anteriores no son garantía de resultados futuros. Si la divisa en que se expresa el rendimiento pasado difiere de la divisa del país en que usted reside, tenga en cuenta que el rendimiento mostrado podría aumentar o disminuir al convertirlo a su divisa local debido a las fluctuaciones de los tipos de cambio. Para inversores profesionales únicamente. Prohibida su comunicación al público en general.

Advertencia - Uso fraudulento de Robeco en sitios web y redes sociales Más información