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Student accidentally invents phone battery capable of 200k recharges
- calchris42 10y agoAhh, happy accidents.. an engineer's best friend.
- sharemywin 10y agoThis seems like something that would still have commercial value even if it's expensive. space travel, undersea, other hard to reach places.
- tdb7893 10y agoI cannot wait for longer lasting batteries because they will make it so you don't need to replace them in electric cars any more. Also it means instead of getting a new rechargeable battery in every device you can just have some standard ones and switch them from device to device as you get new ones, which would reduce costs and waste a ton.
- calchris42 10y agoFor sure. The focus on "your cell phone battery" is a bit narrow. But I guess just a simple to understand example.
- keville 10y agoI fear that as devices shrink there's simply not enough room inside many of them for a workable compartment space that would allow for battery exchanges.
- gus_massa 10y agoIs there another report with a comparison of the charge/weight, charge/volume and charge/price of this battery and an usual Li-Ion battery? These are usual tradeoff. Nobody expect a mobile phone to be used more than 10 years, so if you design a battery to last only 10 years instead of 400 perhaps you can improve the amount of charge.
- Mathnerd314 10y agoOriginal press release with footage / interview: https://news.uci.edu/research/all-powered-up/ https://news.uci.edu/research/all-powered-up/ Paper: http://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00029 http://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00029
- deleted 10y ago[deleted]
- mistaken 10y agoThe wording is a bit misleading in the article. The battery cannot power a laptop for 400 years; but instead it could be used for (drained/recharged) for that long considering a regular laptop battery.
- deleted 10y ago[deleted]
- bradleybuda 10y agoSafe to assume that it's intentionally misleading.
- paulddraper 10y agoTitle should be changed to "Student accidentally invents phone battery capable of 200k recharges" The battery will neither power a phone for 400 years, nor retain a charge for 400 years. (It's especially probable to interpret this latter one, since it's the only claim for which "400 years" is the right unit of measure.) --- PS. Specifying "phone" is a weird application. By their math, even if you had your phone for a decade, you'd only recharge it 5k times.
- dang 10y agoOk, we changed it, albeit a little late. Btw, anyone being driven batty by an inaccurate title is welcome to email us for a quicker fix: hn@ycombinator.com. We don't come close to seeing all the posts here, but we do see (and reply to) emails. Edit: turns out this thread is a dupe of https://news.ycombinator.com/item?id=12562392 https://news.ycombinator.com/item?id=12562392 though.