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What are those blue dots on coin cell batteries? The real story behind them
Yesterday a redditor named joshcam posted a photo of a coin cell battery with purple colored ... the purple dot that turns into a very concentrated blue dye is not soluble in isopropyl alcohol ...
EurekAlert!22d
Engineers took apart batteries from Tesla and China’s leading EV manufacturer to see what’s inside
Graphic rendition of the 4680 Tesla Cell (silver cell in the picture) and BYD Blade Cell (blue cell in the picture ... analysis available on state-of-the-art batteries for automotive applications ...