The global adoption of electric vehicles (EVs) is on the rise, driven by factors such as government incentives, environmental concerns, and advancements in battery technology. The International Energy Agency predicts that there could be over 230 million electric vehicles on the road by 2030. This transition to EVs offers substantial benefits in terms of reduced greenhouse gas emissions and air pollution. However, it also raises questions about how to address the end-of-life phase of these vehicles responsibly. This article explores the importance of electric vehicle recycling, the challenges it poses, and the solutions being developed to manage the retired EVs. 

Nasser Al Dueb, Managing Director, Tadweeer,  said that automotive recyclers are seeing an influx of end-of-life EVs as the EV market continues to grow. Recently, Tadweeer, a leading Waste Electrical and Electronic Equipment (WEEE) recycler in Saudi Arabia, expanded its operations into the realm of automotive recycling, providing sustainable and responsible recycling solutions for end-of-life vehicles.  

Tadweeer's automotive recycling facility, located in Riyadh, processes up to 200,000 tonnes of end-of-life vehicles (ELVs) per year, using state-of-the-art technology to recover valuable materials such as steel, aluminum, copper, and plastics. “The mission is to reduce the environmental impact of ELVs;  contribute to the circular economy and Saudi Arabia Vision 2030; and create jobs and support the local economy,” Al Dueb said. 

“While EVs are more environmentally friendly than traditional combustion engine vehicles (CEVs), they still produce a significant amount of waste at the end of their life cycle. This waste includes the battery pack, electric motor, and other electronic components,” he noted, adding “Tadweeer has a dedicated team of experts who are trained to handle hazardous materials, such as batteries and fuel tanks.” 

A wide array of materials and components can be recycled from traditional CEVs. Both ferrous and non-ferrous metals find new life through recycling. Ferrous metals, such as iron and steel, are re-utilised in the production of new vehicles and various other products. Non-ferrous metals like aluminum and copper are employed in diverse applications. Plastic components extracted from cars are recycled and repurposed to manufacture a range of products, from car parts to toys and furniture.

Key difference 

The recycling process for electric vehicles is similar to that of traditional CEVs, but there are some key differences, noted Al Dueb. “For example, EV batteries must be carefully removed and processed to prevent fires and other hazards. Additionally, EV’s electronic components must be recycled using specialised methods to ensure that they are disposed of safely.”

Challenges in automotive recycling 

Speaking about the challenges of EVs and traditional vehicles, Al Dueb said, “One of the biggest challenges that automotive recyclers face is the increasing complexity of vehicles. Modern vehicles contain a wide range of materials and components, many of which are difficult to recycle.” 

Another challenge is the increasing number of electric vehicles. EVs contain unique components, such as batteries and electric motors, that require specialised recycling methods, he added.

Al Dueb further noted, “In addition, automotive recyclers must comply with a variety of environmental regulations. These regulations can be complex and costly to implement.” 

Promoting responsible EV recycling

How can consumers contribute? “Consumers can make a difference by choosing certified recycling facilities when disposing of end-of-life EVs. Properly disposing of EV batteries and components is crucial too. “The EV industry can contribute by developing design standards that simplify the recycling process for EVs. Investing in research and development for more efficient e-vehicle recycling technologies is also essential,” Al Dueb remarked.  

Positive trends 

According to Al Dueb, several positive trends bode well for a sustainable automotive industry. The increasing popularity of EVs, with their zero-emission profiles, is a significant step toward reducing air pollution and combating climate change. Ongoing developments in e-vehicle recycling technologies promise to streamline the recycling process and enhance efficiency. Many automakers are setting ambitious sustainability goals, signaling a growing commitment to environmental responsibility.

Dr. Deb Mukherjee, Managing Director, Omega Seiki Mobility, acknowledged the unique challenges posed by electric vehicles, particularly regarding battery recycling. “Unlike traditional internal combustion engine vehicles, EVs have a vital component that needs specialised handling: the lithium-ion battery pack. Even though the vehicles could last for 15 years or so, the batteries degrade over time, often requiring replacement after 3 to 4 years,” he said. 

Importance of EV recycling 

Mukherjee emphasised that recycling EVs is not only essential for environmental sustainability but is now an integral part of the vehicle supply chain. The traditional vehicle supply chain includes manufacturing of components, subassemblies, and assembly into modules, culminating in the finished vehicle. Recycling should be seen as a pivotal link in this chain, with EV battery recycling as a critical component, he said. He also stressed the need for a robust formal sector to handle end-of-life EVs, especially their battery components.  

“Over the course of a typical EV's life, the battery may need to be replaced multiple times, sometimes as often as one-third of the vehicle's lifespan. This raises the question of what to do with discarded batteries.” He said that battery reuse, recycling, and eventual vehicle recycling must be considered as part of a holistic approach to sustainability.

Mukherjee pointed out that the initial electric vehicles, mostly two-wheelers,  introduced in India were low end and they were not candidates of recycling. The vehicles were sold as scrap, considering the fact that India’s recycling industry was predominantly unorganised. But this is changing. “As the industry is evolving, OEMS are manufacturing high quality vehicles now, particularly cars. They are becoming the market leaders and these EVs will reach the recycling units at the end of their life cycle - possibly in the next decade.” 

The role of vehicle design

Another significant aspect of EV recycling is vehicle design. He emphasised the importance of designing vehicles with recycling in mind. “Certain components, such as powertrains, seating systems, the instrument panel, the steering and the electronics, have the potential for maintenance and refurbishment extending their lifespan. Some of the parts can also be reclaimed, certified for quality and reused again.” This approach aligns with the concept of a circular economy, where materials are kept in use for as long as possible.  

Software recycling: A new frontier

Electric Vehicles are becoming smarter and more connected, collecting vast amounts of data. Mukherjee highlighted the challenge in data protection. “EVs are constantly gathering information such as travel history, financial and personal information. This data ownership and protection issue is an emerging concern, particularly at the end of a vehicle's life. Who owns the data collected by the vehicle? The recycling and management of software and data in EVs are areas that regulators and the industry must address. 

Innovative recycling technologies

“Currently, very few companies globally possess the technology for efficiently recycling  lithium-ion batteries. Startups are emerging, claiming to have nearly 100% recyclable capabilities, but the scalability and reliability of these technologies remain to be seen.” He stressed the need for more research and development into the field. 

Speaking about Extended Producer Responsibility (EPR), he noted, “In principle, I agree that OEMs should be made responsible.  But the policy should be carefully drafted keeping the entire supply chain in mind and monitored through reliable software. It should not be one dimensional and implementation should be systematic. All the stakeholders should be consulted.”

According to Clean Mobility Shift, Germany and Japan each mandate EPR to ensure that the manufacturers work with their customers and authorised waste collection points and recycling units to recover the used batteries. Japan specifically has a battery collection collective, called the Japan Portable Rechargeable Battery Recycle Center, to recover and recycle used li-ion batteries free of charge. The EU is working to set a target of recycling at least 95 per cent of the bloc’s single use alkaline and Nickel Cadmium batteries by 2030. 

A.L.N. Rao, CEO, Exigo Recycling, pointed out that India and many other countries are just in the process of bringing out the End of Life Vehicle policies. “And it is not clear yet whether EVs will come under these rules in India.” The country is expected to release the draft ELV policies in six to eight months. 

Rao stated that an EV is also a vehicle with parts such as electronics, battery, metal (base, precious and nonferrous metals), plastic, tyres and oil. Management of these parts come under their respective rules (atleast in India) and go to respective recyclers.  

Speaking about regulations for EVs, he said, “Considering that an EV is partly battery and partly vehicle, the battery management comes under  Battery Waste Management Rules, 2022, of India and the vehicle management will come under the ELV rules. As per polluter pays principle, the respective parts will be regulated by the respective laws.” 

As per the Battery Waste Management rules, 5 to 20 per cent is the target given to producers for the use of secondary raw materials in their new product manufacturing, he said, adding that it will come into effect from 2024. “The rules mandate EPR for Indian battery manufacturers with penalties for non-compliance.”

Recycling lithium-ion batteries

Dr. Daniel Schönfelder, Senior Vice President Battery Base Metals and Recycling at BASF, gave us an overview of lithium-ion batteries recycling.  

 Schönfelder explained, “Modern electric vehicles are powered by lithium-ion batteries. In such a battery there are several hundred individual battery cells. A battery cell consists of two differently charged poles: the negatively charged anode and the positively charged cathode. Between these poles, the ions migrate back and forth and thus ensure charging and discharging. The negatively charged ions discharge at the cathode.” BASF's cathode active materials are processed in the cathode (or into a cathode). The properties of cathode active materials significantly determine both the driving range of the electric vehicle and the recharging time of the battery.

The recycling process

When lithium-ion batteries reach the end of their service life, they can undergo a two-step recycling process that allows the recovery of valuable metals for the production of new batteries. The first step involves the mechanical treatment of end-of-life batteries and battery manufacturing waste, which includes shredding, drying, and sorting. This process yields a substance known as "black mass," containing essential metals like lithium, nickel, cobalt, and manganese. The second step involves chemically extracting these valuable metals from the black mass in a refinery plant. Speaking of BASF’s contribution, he said that the company is currently constructing a commercial-scale battery recycling plant in Schwarzheide, Germany, with a targeted production start in 2024. It is also set to initiate operations at a prototype refinery in Schwarzheide later this year, aiming to establish a full-scale commercial refinery in Europe in the near future.

The hydrometallurgical refining process (employed by BASF) is based on established mining industry techniques, optimised for battery recycling. To recover lithium, the company employs its proprietary Li recovery process from Tenova Advanced Technologies. “The metals recovered from lithium-ion batteries are repurposed for the production of new cathode active materials. These materials are essential for crafting fresh lithium-ion batteries, creating a sustainable and closed-loop approach to battery production.”  

Promises and challenges

Recycling lithium-ion batteries holds significant promise and poses particular challenges: Capital-Intensive Nature: Battery recycling requires substantial investment due to its complexity and specialized equipment. 

Expertise Requirements: Successful recycling necessitates expertise in safety, logistics, and assaying. 

As the world anticipates an electric vehicle boom, large-scale lithium-ion battery recycling will become more prevalent in the next decade. This is essential to meet recycling quotas set by regulations like the EU Battery Regulation and to reduce the carbon footprint of electric vehicles. “With the expected rapid growth of electric cars in the coming years, we see this as an attractive market that will also provide us with competitive and sustainable access to metals such as cobalt, nickel, and lithium for the cathode materials that are relevant to us. This is why BASF is also investing heavily in battery recycling,”  Schönfelder said. 

Speaking about BASF's technology, he said, “BASF’s innovations not only support the growth of a sustainable battery recycling industry but also contribute to advancements in the automotive sector with its cathode active materials. Cathode active materials are the heart of a lithium-ion battery as they significantly influence the most important battery properties, such as a battery’s performance, real driving range, charging time and service life. Our research and development teams for example have succeeded in increasing the manganese content while at the same time significantly reducing the cobalt content.” Cobalt is both expensive and limited in supply. As a result, we can offer our customers high-manganese and low-cobalt cathode active materials at a lower cost while maintaining the same level of performance, he noted.