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The Biodegradable Battery
- seph-reed 5y agoAny info on the theoretical capacity of these vs Lithium Ion? I didn't see it in the article. (Obviously it's not a competition, but it'd be nice to have some frame of reference)
- teraflop 5y agoAccording to the paper[1], the prototype has an energy storage capacity of 0.88 Wh/kg, which is about 250 times lower than standard lithium ion cells. [1]: https://onlinelibrary.wiley.com/doi/10.1002/adma.202101328 https://onlinelibrary.wiley.com/doi/10.1002/adma.202101328
- deleted 5y ago[deleted]
- elihu 5y agoThe "battery" is actually a capacitor; those tend to have very low energy density compared to batteries, but on the other hand can be charged and discharged very quickly.
- jakedata 5y agoI am a biodegradable battery.
- worik 5y agoNo you're not You are biodegradable...
- born2discover 5y agoEvery human is a biodegradable battery of kinetic energy. So for what its worth, parent comment is technically correct.
- jszymborski 5y agoWe've got plenty of chemical energy stored in fat and sugar too :)
- pacifist 5y agoThe Matrix begs to differ(I saw it in a movie so it must be true).
- ctdonath 5y ago"Listen to me, coppertop. We don't have time for twenty questions. Right now there's only one rule, our way or the highway." - Switch, _The_Matrix_
- hanniabu 5y agoI eat food to charge and can store that energy as fat.
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- agumonkey 5y agoBattery+engine combo
- worik 5y agoI have spent five minutes hunting the Interweb for information on the biodegradability of cellulose nano fibres. (I think that is called "doing my research", whatever) I find a lot of people assuming they are biodegradable, which seems reasonable. But no reports of anybody testing the proposition. Nanofibres have unique chemical properties and it may turn out that microorganisms cannot process them. I am not a chemist, let alone a bio-chemist... Does anybody in Hacker News Hivemind know of actual experiments composting nano cellulose? Assumptions or reasoning do not count
- deleted 5y ago[deleted]
- sp332 5y agoThe article says they tested it. It composted in two months.
- deleted 5y ago[deleted]
- userbinator 5y agoBefore clicking on the article, I thought it would be a fruit or vegetable with some electrodes stuck in it.
- Protostome 5y agosucrose can be a great battery. It's biodegradable, relatively cheap, dissolves in water (unlike oils) and has a high energy density. 1kg of sucrose has an energy density that is equivalent to 4kW. A typical daily power consumption of a family home is ~ 11kW It means that we can power an entire house with ~ 3kg of table sugar.
- hulitu 5y agoUntil it starts raining. The cost of keeping the water out of the battery will be very high.
- Protostome 5y agoHow is different than any other type of fuel cell / battery?