Second-life battery systems

Energy with responsibility

Our energy storage gives batteries from electromobility a second life. By reusing existing batteries, we reduce the demand for newly mined raw materials, lower CO₂ emissions, and create products that utilize energy more efficiently and environmentally friendly. This is circular economy in action – technologically advanced, ecologically sensible, and economically wise.

Implementing circular economy

What does second-life mean for us?

Studies by Fraunhofer and the University of Münster show: To meet the EU demand solely through new batteries, 250 TWh of energy for production would be needed annually by 2050. With our second-life storage systems, we use energy that has already been invested instead of consuming new resources.

When batteries reach their limits

At 70-80% remaining capacity, a battery no longer meets the requirements of electromobility. The energy density (kg/kWh) has decreased, the range is no longer sufficient, and high performance can no longer be accessed (short-term C-rates of >3). Such a battery is usually then sent for recycling.

When batteries reach their limits

At 70-80% remaining capacity, a battery no longer meets the requirements of electromobility. The energy density (kg/kWh) has decreased, the range is no longer sufficient, and high performance can no longer be accessed (short-term C-rates of >3). Such a battery is usually then sent for recycling.

When batteries reach their limits

At 70-80% remaining capacity, a battery no longer meets the requirements of electromobility. The energy density (kg/kWh) has decreased, the range is no longer sufficient, and high performance can no longer be accessed (short-term C-rates of >3). Such a battery is usually then sent for recycling.

New applications open up new possibilities

Other applications have very different requirements than e-mobility. For example, fixed battery storage. Because they are permanently installed, energy density is almost irrelevant. Lower C-rates are also completely acceptable for most applications.

New applications open up new possibilities

Other applications have very different requirements than e-mobility. For example, fixed battery storage. Because they are permanently installed, energy density is almost irrelevant. Lower C-rates are also completely acceptable for most applications.

New applications open up new possibilities

Other applications have very different requirements than e-mobility. For example, fixed battery storage. Because they are permanently installed, energy density is almost irrelevant. Lower C-rates are also completely acceptable for most applications.

The second life of the battery

Second Life describes the second phase of use for products that have fulfilled their original purpose and is an important part of the circular economy. At modual, each battery is carefully tested and validated for further use in our storage systems.

The second life of the battery

Second Life describes the second phase of use for products that have fulfilled their original purpose and is an important part of the circular economy. At modual, each battery is carefully tested and validated for further use in our storage systems.

The second life of the battery

Second Life describes the second phase of use for products that have fulfilled their original purpose and is an important part of the circular economy. At modual, each battery is carefully tested and validated for further use in our storage systems.

Quality without compromise

Safety and reliability are our top priorities. All second-life batteries undergo a multi-stage inspection and testing process before being integrated into our systems. In operation, our self-developed battery management system (BMS) continuously monitors the condition, temperature, and performance of the batteries, performs balancing, and thereby ensures maximum operational safety and longevity of our storage. The result: Storage systems that match new products in terms of quality, safety, and longevity - while being significantly more sustainable.

Your contribution to the circular economy

By using a battery storage system, you generally reduce your ecological footprint. By purchasing a Second Life battery storage system, you additionally reduce CO2 emissions during storage production, prevent the mining of new raw materials, and give society time to build up our recycling capacities.

CO2

The battery cells account for about 80% of the CO2 emissions of a battery storage system. By reusing already produced battery cells, modular storage solutions have an ecological footprint that is about 60% lower than that of new storage.

CO2

The battery cells account for about 80% of the CO2 emissions of a battery storage system. By reusing already produced battery cells, modular storage solutions have an ecological footprint that is about 60% lower than that of new storage.

CO2

The battery cells account for about 80% of the CO2 emissions of a battery storage system. By reusing already produced battery cells, modular storage solutions have an ecological footprint that is about 60% lower than that of new storage.

Extract new raw materials

For our home storage systems, we exclusively use LFP battery cells. Depending on the original cell manufacturer and supply chain, there are differences. But as a guideline, about 95 kg of raw materials need to be mined to produce 1 kWh of battery cells. Therefore, several tons of raw materials are behind each battery storage system.

Extract new raw materials

For our home storage systems, we exclusively use LFP battery cells. Depending on the original cell manufacturer and supply chain, there are differences. But as a guideline, about 95 kg of raw materials need to be mined to produce 1 kWh of battery cells. Therefore, several tons of raw materials are behind each battery storage system.

Extract new raw materials

For our home storage systems, we exclusively use LFP battery cells. Depending on the original cell manufacturer and supply chain, there are differences. But as a guideline, about 95 kg of raw materials need to be mined to produce 1 kWh of battery cells. Therefore, several tons of raw materials are behind each battery storage system.

Recycling capacities

Humanity has the know-how to reclaim nearly 100% of the raw materials in a battery. Unfortunately, newly mined raw materials are often still cheaper than those from a recycling process. For this reason, there are only limited capacities, and humanity struggles to build additional ones. In 2024, for example, Europe would only have been able to recycle about 10 percent of the electric vehicle batteries that will return to the market in 2030.

Recycling capacities

Humanity has the know-how to reclaim nearly 100% of the raw materials in a battery. Unfortunately, newly mined raw materials are often still cheaper than those from a recycling process. For this reason, there are only limited capacities, and humanity struggles to build additional ones. In 2024, for example, Europe would only have been able to recycle about 10 percent of the electric vehicle batteries that will return to the market in 2030.

Recycling capacities

Humanity has the know-how to reclaim nearly 100% of the raw materials in a battery. Unfortunately, newly mined raw materials are often still cheaper than those from a recycling process. For this reason, there are only limited capacities, and humanity struggles to build additional ones. In 2024, for example, Europe would only have been able to recycle about 10 percent of the electric vehicle batteries that will return to the market in 2030.

Where do the battery cells in our storage come from?

The battery cells in our storage systems come from high-quality sources that have completed their first life cycle in vehicles or industrial applications. Instead of recycling or disposing of these valuable resources, we give them a second life – efficiently, sustainably, and meaningfully.

Kyburz

It all started with the vehicles from Kyburz. The used batteries of the well-known electric vehicles form the origin of our second-life storage technology.

Traffic and commercial vehicle fleets

Bus and truck manufacturers, as well as public transport companies, provide us with batteries that find a new use in our storage after their first life in the vehicle.

Recyclers and workshops

Partners like Librec, workshops, and vehicle recyclers ensure that valuable battery cells are not lost, but are tested and reused.

We take over your batteries

Do you have used batteries or modules that can no longer be used in vehicles? Get in touch with us – we will check their suitability for second-life use and take care of transportation, testing, and reuse. Together we extend the lifecycle of valuable resources and make energy more sustainable.

Increase self-sufficiency, reduce costs, decrease CO₂.

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Increase self-sufficiency, reduce costs, decrease CO₂.

Ready for sustainable energy?

Select your preferred way

Configure product

Get a personalized quote in 2 minutes.

Buy from distributors

Order directly from our sales partners

Find installers

Contact your installer or a certified partner.

Increase self-sufficiency, reduce costs, decrease CO₂.

Ready for sustainable energy?

Select your preferred way

Configure product

Get a personalized quote in 2 minutes.

Buy from distributors

Order directly from our sales partners

Find installers

Contact your installer or a certified partner.

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© modual 2025 - All Rights Reserved.

© modual 2025 - All Rights Reserved.

© modual 2025 - All Rights Reserved.