Can Scientists Make a Battery That Will Survive 40,000 Charges?

Illustration for article titled Can Scientists Make a Battery That Will Survive 40,000 Charges?

The one problem with gadgets is power. Even if batteries start off long-lasting, after 12 months they start to struggle. But a new material might change that.


A team of researchers from Stanford have developed a new battery electrode that can survive 40,000 charge cycles. That's about a hundred times more than a normal Lithium-Ion battery, and enough to make it usable for somewhere between 10-30 years.

So how does it work? It's down to what it's made from: copper hexacyanoferrate. The structure of the material lets charge-carrying ions move in and out of the electrode easily, and it's extremely rugged, so it degrades at a much slower rate than Li-On batteries. That all means it can charge and discharge rapidly, and lasts for ages. Great!


One tiny snag, however. A high-voltage cathode needs a very low-voltage anode. And, err, they haven't managed to make that part yet, so currently it's not possible to make a sealed unit that would be suitable for commercial use. Still, that's next on the list for the team. Hurry up, guys. [Nature Communications via eWeek Europe via Slashdot; Image:]

Share This Story

Get our newsletter


In whose lifestyle is 40,000 charges equivalent to only 10-30 years?

40,000 charges / (365 days * 10 years) = 10.9 charges per day. Even on the long end of 30 years, this comes out to 3.6 charges per day. I could see re-charging a battery once a day maybe, but this 10-30 years timframe seems wrong to me. I'd guess it's closer to 90 years (assuming the batteries can even last that long.