Nissan LEAF Battery Disassembly Videos (Machete Included)

MAR 5 2014 BY MARK KANE 12

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Nissan LEAF battery pack

Here are few videos on Nissan LEAF battery module disassembly.

The author (video uploader) seems to have knowledge in opening cans to get the pouch cells out and then use them in other projects.

The Nissan LEAF battery pack consist 48 such modules with 4 cells each.

Via: The Electric Chronicles

Categories: Battery Tech, Nissan, Videos

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12 Comments on "Nissan LEAF Battery Disassembly Videos (Machete Included)"

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hahaha. I would have never thought to use a can-opener.

It seems to me that he went through all the trouble of repackaging of the modules for basically nothing – why not just leave them in the original packaging?

The weight difference between the aluminum the modules came in and the plexiglass he re-packaged them is negligible.

I was kind of perplexed on that too. If the purpose is for a science experiment or some sort of display, I guess I can see it. But it is quite obvious there is no useful benefit to tearing down one of these modules.

Tampering around with the battery like this and putting it back into the car could be really dangerous in terms of setting off a fire or getting shocked.

But I do wounder has Tesla considered adding a after market product for the Nissan Leaf with their more energy dense batteries.

How would you handle the cooling and charging with a Tesla pack in a Nissan?

I’m sure they could figure out how to do an underbody radiator if they wanted to.

But I’m sure a product isn’t even on their radar, as they can’t get their hands on enough batteries as it is. It makes more sense to use what they have to sell more $100k vehicles with 25% margin than an aftermarket pack for Nissan.

Leaf it in the can. That size looks about right for an electric bike or similar project..

Yeah, but it is not the right voltage. I’m not sure the voltage of a single module, but I’m guessing somewhere around 6 to 8 volts per module. An electric bike would need at least 24 volts (preferably more) so you’d need at least 3 modules.

He also added balancing taps. Seems important in an ebike application.

and its still ugly!

Each cell is about 3 volts and 30 amps; there are four. So, if you want an inexpensive 12 volt 30 amp battery, you take the can off to rewire them all in series.

Other than curiosity, perfectly valid reasons to open the modules would be:

1. Change the 4 cells inside from a 2 parallel 2 series alignment, 7.5V 66ah, to 4 cells in series, 15V 33ah.
2. Reduce weight and size of the pack.

On electric bikes and motorcycles space is the biggest premium, and the pack needs to be made water resistant so some additional packaging is required. Those cans are nice for a car pack, but a bit bulky and heavy, especially since they aren’t sealed.

I’ve got 30 modules, 10-15 may go unchanged, but the rest will be pulled out of the sardine cans.

IMHO Nissan made a mistake not making the modules 4s unless they already have plans to make 1p4s packs available for purchase. 1p4s, especially if put into a water resistant case, would make great replacement for 12V lead acid batteries in myriad of uses.