lithium-ion battery
The lithium-ion battery is currently the benchmark technology for electric cars.
Renault chose to equip its E‑Tech electric vehicles with this technology, as it offers customers an optimal technical solution with maximum benefits:
- high energy density giving long driving range
- able to accept high charging powers for better chargeability
- consistent performance whatever the temperature and no memory effect
- battery durability and ageing managed over time
understanding Renault E-Tech electric technology
battery performance
- capacity and driving range
- chargeability and power
- longevity and durability
capacity
The battery’s capacity is expressed in kilowatt hours (kWh). This should not be confused with the instantaneous power of the electric motor or a charge expressed in kilowatts (kW). It's the equivalent of comparing a fuel tank’s capacity (litres) to engine power (horsepower).
driving range
Driving range mainly depends on the battery’s capacity. The greater the capacity the more miles the vehicle can cover. However, other factors such as vehicle weight, driving style and weather conditions affect the electric vehicle’s range.
chargeability
The main role of the battery is to store and redistribute energy. It determines your electric vehicle’s driving range. When designing it, we take into account its chargeability, i.e. its ability to absorb the power provided (kW) rapidly whatever the charge type.
charging time
Our E-Tech vehicle batteries are designed to offer the best compromise between stored energy and charging time. Ideal for motorway use and for effective recovery during ultra-fast charging.
outside conditions
The battery is also subject to outside conditions. To make sure that the vehicle works correctly, we adjust the operating temperatures using the cooling system built into the battery.
Renault expertise and quality assurance
Renault has over 10 years' experience since selling its first electric vehicle: Renault Zoe. This gives us excellent knowledge, analysis and control of battery ageing. Our expertise and our commitment are a guarantee.
battery warranty
Our Renault E-Tech vehicles feature traction batteries guaranteed for 8 years* or 160,000 km*. As with any battery in an electronic device, there is a natural decrease in capacity. The battery is guaranteed to maintain 70% of its capacity over the warranty period.
*on the first of the two terms due
battery safety
The safety of its electric vehicles is a priority for Renault. Renault has integrated experts with firefighting experience into its teams. Both work in close collaboration with third-party safety experts to improve your safety. Two major innovations for example:
Fireman Access
The Fireman Access gives firefighters direct access to the heart of the battery if it is affected by an external fire, reducing the intervention time.
SD Switch*
During firefighter interventions (excluding fires), the battery can be immediately disconnected from the electrical circuitry via the innovative SD Switch, thereby protecting the firefighters from potential electrocution.
end-of-life batteries
When batteries reach the end of their first life, i.e. between 10 and 15 years or when they fall below the 70% charging capacity, they can be replaced.
They then embark on a second life, for example, by being reused for storing renewable energy or other less demanding mobile uses. Once this second life has ended, they can then be recycled.
- collection
- second life
- recycling
collection
In accordance with the European Directive, Renault has committed to collect the used batteries of its electric vehicles. All of our Renault E-Tech centres are there to assist you with your battery recycling.
second life for batteries
Once the batteries’ first life has ended, the challenge is to find ways to reuse them. The Mobilize brand focuses on this issue with its “Advanced Battery Storage” programme, which have already been deployed on several sites in France and Europe. These batteries can then be used, for example, to store the energy produced by wind turbines and solar farms. This way they compensate for the inherent intermittence of these resources.
battery recycling
For a lithium-ion battery like the one in Renault 5, the recycling process starts with dismantling to extract all of the components.The structural, plastic, metal and welding elements go to their own specific recycling facilities.
*European regulatory requirements: minimum 65% battery recycling rate from 31/12/2025.
also discover
*Available on Megane E-Tech electric
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