Renault ZOE Z.E. 40 (41 kWh) Battery Visualized

FEB 22 2017 BY MARK KANE 10

The new Renault ZOE Z.E. 40 proves that it’s possible to double battery capacity, without redesigning an entire car.

Renault ZOE Z.E. 40 battery

The key is to originally develop a battery pack that could handle future modules with more energy dense cells (see video below).

In the case of ZOE Z.E. 40, available energy went up from about 22 kWh to 41 kWh, while the dimensions of the battery remained unchanged, with the weight increasing by only 15 kg (33 lbs) – from 290 kg to 305 kg (5%).

Physically, Renault still uses a 192 cells (LG Chem) in 12 modules (16 cells per module) configuration.

With 41 kWh of energy in the sub-compact model, a real world range of 300 km (186 miles) is possible (officially in Europe the ZOE is rated at 400 km on the NEDC scale).

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10 Comments on "Renault ZOE Z.E. 40 (41 kWh) Battery Visualized"

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Those look like BoltEV cells and the pack architecture also looks similar. Is this pack cooled with a bottom plate like the BoltEV?

I didn’t see any reference in the video or in the article about cooling.

How is this pack cooled?

When I saw the shape of the cells, I was thing the same thing.
And as the Bolt has 288 cells for ~65kWh, the Zoé with 2/3 cells of the Bolt, has ~44kWh of battery.
The first Zoé battery had a lot of empty space in the “sarcophagus”, this second one seems to be more optimize about space.

No need to wonder as Renault and GM get their Cells delivered from LG Chem. However the Cells of the Bolt are slighter longer and a bit taller if I remmeber right. Apart from that it is obviously a very similiar Cell Design by LG. Cooling is different between both. Renault is using active Air Cooling. The 3 large holes you see in the back end of the Battery are being used. Cold Air is blown into the middle one flowing through the central channel inside the Battery towards the outer area then backwards and out of the 2 other holes. So behind the battery and below the trunk in fact is the Climate Module which consist of the Ventilator and a heat exchanger that is connected to the cooling lines of the Cars A/C System as a secondary A/C unit in fact. However actually the System is only able to cool the Battery. Renault had originally planned to add an additional PTC Heater into this Module as well to be able to support heating up teh Battery or at least holding it at more comfortable Temperatures in very cold Environments. Unfortunately it seems that this was never ever anywhere… Read more »

It’s also worth noting that Renault always indicates usable capacity, not actual capacity.

I hate that cartridge module design. If your going to wrap your pouch cell in aluminum just use a can cell.

There is more than one cell in the aluminum case. In the case of the Bolt there are 3 cells in every case. It’s a more efficient packaging than cylindrical cells that always have gaps when placed together.

Instead of doubling the capacity they’d better should have halved the price of the battery, so you can afford to buy it.
Or double fast-charging speed from 43 to 80kW. Instead they halved it (even the Q90 does not fastcharge with 43kW most of the time).

Right, the new Zoe is a step backwards. Due to the reduced charging power, it has lost most of it’s superiority. I can’t believe that they srewed up like this.

There are always two in a crowd.

Can’t we celebrate doubling capacity in ghe same volume with only a 5% weight increase??