⚠️ Major battery defects found in off-the-shelf batteries ⚠️ One of our summer interns, Jinhong, bought a variety of 18650 cells 🔋 from Amazon and then CT scanned them using Glimpse's high-quality, 2-minute scanning recipe. We found all sorts of severe defects in these cells, including jellyroll buckling, anode-cathode overhang violations, and housing damage. These defects could induce thermal runaway 🔥🚒 as well as electrolyte and gas leaks 💧. Battery quality issues have been responsible for major safety events in e-bikes 🚴, consumer electronics📱, electric vehicles 🚗, and more. 🩻 Just like how medical imaging is the best technique to detect early-stage tumors, X-ray CT scanning is the best technique to detect early-stage battery defects. 📞 Contact Glimpse to learn more about our high-throughput, high-quality CT scanning offerings.
Scary in small cells, but terrifying in large EV cells.
This makes you consider all the systems currently deployed that may have these defects. Any data on the percentage of cells with these critical defects?
Could these have been detected without using the same methods you used for this experiment?
Terrifying!!
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Chief Executive Officer Smappee
3moNo surprise at all. A clear hint to buy certified devices and to not be tempted to focus on lowest price online. Off-spec End-of-Line cells unfortunately do not always end up in recycling flow.