Recent content by rickvanderzwet

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  1. rickvanderzwet

    Anybody from The Netherlands?

    Hi, Basically I find it good fun taking apart eBike batteries and testing cells as part of my interest in recycling. How-ever apart from this I find no use for them. Not interested in actually making a powerwall, since I do not have the available space to work safely. Also not interested in...
  2. rickvanderzwet

    Prevent pouch batteries from swelling during recyling-discharge?

    Did some more long term testing. If I leave the batteries idle for about 1 month, the swelling gracefully reduces, with low enough voltage to safely dispose them at the recycling centre.
  3. rickvanderzwet

    Prevent pouch batteries from swelling during recyling-discharge?

    Gave it a try, no luck, still same amount of swelling. It looks like the swelling start to occur at 2.5-3.0V, but I will run some more testing to confirm. My biggest issue is not the lack of energy of the battery, but the fact they potentially gain a lot of space and/or could vent gasses or...
  4. rickvanderzwet

    Prevent pouch batteries from swelling during recyling-discharge?

    Gave it a shot, how-ever no luck. The pressure is great enough to lift the weight: Did some reading on over-discharging. It seems to be caused by: I have tried to find a source for proper recycling procedures how-ever none found so-far. Only industrial instructions which is about...
  5. rickvanderzwet

    Prevent pouch batteries from swelling during recyling-discharge?

    Fair point when I have some more (this was only one battery) and cells are still decent quality (this ones where not) I will do it. How-ever I am based in "The Netherlands" (Europe region), which afaik not many persons are active in the marketplace. Nice tip, thanks I will give it a try.
  6. rickvanderzwet

    Prevent pouch batteries from swelling during recyling-discharge?

    My e-bike harvesting also left me with some pouch batteries, which I do not want to use and are thus candidate for recycling. I order to recycle them safely I want to discharge them to avoid issues on an accidental short-circuit for example. I currently deep-discharge them by hooking them to a...
  7. rickvanderzwet

    Scrap battery-pack recycling instructions (for NL)?

    One reason of joining was to investigate 'waste-streams' generated by (e-Bike) batteries packs. To my knowledge they are not mass-recycled and/or dismantled. Basicly just collected and stored. In NL a non-profit organisation Stibat is responsible for gathering this battery packs. Recovering...
  8. rickvanderzwet

    Testing GP4105054T1000L battery 'block'

    I retrieved some odd looking batteries from a e-bike battery. Their identification is GP4105054T1000L. The only reference I could find are the GP recycle instructions which tells me the cell is rated 3.65V and 10Ah. I am completely new in cell harvesting and testing...
  9. rickvanderzwet

    How to open a Gazelle E-Bike battery.

    I think it a Bronze one. I have one glued like the Dretje, which has bronze listed on the label. All others Gazelle batteries are easier to open, for example: They contain different battery packs (stored inside the container) including one which contained flat cells.
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