Toshiba’s new rechargeable lithium-ion battery recharges in one minute

[PhotonBoy]

http://www.file22.com/?p=57

"The company's new battery can recharge 80% of a battery's energy capacity in only one minute, approximately 60 times faster than the typical lithium-ion batteries in wide use today, and combines this fast recharge time with performance-boosting improvements in energy density...."

 

[TMorita]

Erm, yeah.

So if you have a 2500 maH AA cell, and it recharges 80% in one minute, then that would be....

2500 maH * 80% = 2000 maH.

2000 maH in one minute = 120 amps! of current for one minute.

I'm pretty sure they're talking about tiny cells on the order of 200 maH or less, because obviously a charger which can deliver 120 amps would probably need special government permits.

Toshi

 

[65535]

Ya it really is nice to be able to charge soo fast but the required current is astounding.

 

[stamat]

I believe the article is from April- May 2005
The promissed ship date was 2006, but there was no further news after that.

The article showed a 600 mAh prototype. That would be close to 30 Amps pumped into 6.2 x 3.5 x 0.4cm. The volume must be a little more than an AA battery but still tiny.

http://www.theregister.co.uk/2005/03/29/toshiba_li-ion_battery/

http://www.extremetech.com/article2/0,1697,1782282,00.asp

 

[chevrofreak]

Re: Toshiba's new rechargeable lithium-ion battery recharges in one minute

Erm, yeah.

So if you have a 2500 maH AA cell, and it recharges 80% in one minute, then that would be....

2500 maH * 80% = 2000 maH.

2000 maH in one minute = 120 amps! of current for one minute.

I'm pretty sure they're talking about tiny cells on the order of 200 maH or less, because obviously a charger which can deliver 120 amps would probably need special government permits.

Toshi

Most AA sized Li-Ions are around 700mAh. It's the Ni-MH cells that are around 2500mAh.

 

[AndyTiedye]

If the charger didn't get it exactly right, it would make a very large