aluminum ion battery
Energy density about the same as lead acid. 7500 cycle life with rapid charging aluminum ion
Forum Discussion
pianotuna wrote:
So long as the aluminum batteries can be charged at low temperatures I'll be quite interested.
Fascinating that they can be rapid charged--a cell phone in one minute.
That's a misleading quote that comes up a lot with new batteries.
To recharge a 2500-3000 mAh cell phone battery in a minute, you will need a crazy high amperage charger and a heavy gauge connection to the battery.
Most cell phones charge at 0.5C or 0.25C, half to quarter capacity. So it takes 2-3 hours for a full charge. To charge in 1 hour, 1C (3 amps), 30 min 2C (6 amps), 15 min 4C (12 amps!) , 7.5 minutes 8C (24 AMPS!) etc etc...
What the quote usually means is the test-tube battery charged in less than a minute. What they don't say is the test-tube battery has a capacity of 1 mAh.
