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Crushed silicon can create a smartphone battery that lasts three times longer than current cells

Posted: , by Alan F.

Crushed silicon can create a smartphone battery that lasts three times longer than current cells
Battery life remains a hot button topic for smartphone owners. To prove that, one needs only to look at the popularity of the Motorola DROID RAZR MAXX and Motorola DROID RAZR MAXX HD with their 3300mAh battery providing 21 and 32 hours talk time respectively, on a single charge. Owners of LTE enabled phones have seen how LTE connectivity consumes battery life so quickly that users need to carry an AC plug with them at all times. But researchers at Rice University believe that they have a solution. It seems that crushed silicon can help triple the life of lithium-ion battery, like the kind used on smartphones.

The Motorola DROID RAZR MAXX HD lasts up to 32 hours on a single charge

The Motorola DROID RAZR MAXX HD lasts up to 32 hours on a single charge

Rice University engineer Sibani Lisa Biswal and research scientist Madhuri Thakur found that by crushing silicon, you create battery anode that can hold as much as ten times the amount of lithium ions than the graphic anodes commonly used with today's batteries. According to Motherboard, the result is a battery with 1000mAh per gram with 600 charge cycles of two hours charging, two hours discharging. Current graphite anone cells can handle only 350mAh per gram. The secret is the use of porous silicon that has more surface area than plain crushed silicon and enables the battery to hold more cycles. The porous silicon powder is mixed with pyrolyzed polyacrylonitrile. Besides the University, aerospace giant Lockheed Martin is also involved in the development of the battery.

We don't know about you, but for many this can't be commercialized soon enough so that those with an LTE enabled smartphone can stop looking for an electricity fix every few hours. 

source: Rice, Motherboard via BGR

19 Comments
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posted on 07 Nov 2012, 01:39 11

1. PhenomFaz (Posts: 1104; Member since: 26 Sep 2012)


All the hue and cry over batteries in devices and all it takes is sand to solve our battery issues :)

posted on 07 Nov 2012, 01:47 5

2. Captain_Doug (Posts: 794; Member since: 10 Feb 2012)


There's been like 3 or 4 advancements like this in the past few months. It's great but I'd really like to see something actually happen with this tech. Come to market!

posted on 07 Nov 2012, 02:04 2

4. Topcat488 (Posts: 1174; Member since: 29 Sep 2012)


I agree with Captain_"D", advancements in the area of making longer lasting batteries have been in the news more and more as of late. Which is another reason i'm happy that my SG-Note has a removable battery. Bring on the sweetness of these longer lasting batteries... ;)

posted on 07 Nov 2012, 07:53 2

20. Captain_Doug (Posts: 794; Member since: 10 Feb 2012)


That's a great point. These batteries would probably be backwards compatible with phones today and with a removable battery you could just make the switch. So that's a selling point for another reason now.

posted on 07 Nov 2012, 01:58 12

3. eisenbricher (Posts: 972; Member since: 09 Aug 2012)


Indian scientists are brilliant! Alas, they get necessary facilities only in other countries...
Nice invention! Hope to see it coming soon to phones.

posted on 07 Nov 2012, 02:14

6. byazatt (Posts: 159; Member since: 26 Oct 2012)


I just imagined the next generation galaxy note (the current is still blowing my mind!), with a battery that lasts for two whole days under my itchy thumbs!

posted on 07 Nov 2012, 02:17 8

7. byazatt (Posts: 159; Member since: 26 Oct 2012)


someone has eaten a rotten fruit and the stench is all over this place!

posted on 07 Nov 2012, 02:37 8

11. TheMan (Posts: 424; Member since: 21 Sep 2012)


Get the "Will it Blend" guy over here. We need to make some batteries!

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