Toshiba preps minute-charge 'miracle' battery (The Register)
Toshiba 'one-minute charge' Li-ion batteryThat's considerably faster than today's Li-ion rechargeables which can take 1-4 hours to reach 80 per cent capacity, and even longer to fill completely.
Toshiba also claimed the new cell offers a greater longevity than today's Li-ion batteries, losing only one per cent of its capacity after 1000 charge cycles, according to the results of its own charge-discharge testing.
... The company lauded the new battery's eco-credentials. With such a fast recharge time, it consumes less energy than today's Li-ion cells, leading to reduced carbon-dioxide emissions, Toshiba claimed.
The secret is the use of "nano-particles" to "prevent organic liquid electrolytes from reducing during battery recharging. The nano-particles quickly absorb and store vast amount of lithium ions, without causing any deterioration in the electrode". More here