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Imagine being able to charge you Pocket PC battery fully in just 3 minutes. If Toshiba's new battery technology is all it's cracked up to be, we'll get that wish in about 3 years. They have developed a fast-charging battery technology that promises to charge handheld batteries about 60 times faster than current lithium ion batteries. Lithium-ion batteries charge by absorbing ions in the negative electrode, and they discharge when ions flow from the negative to the positive electrode. Conventional lithium-ion batteries charge at a rate of 2% to 3% of their total capacity per minute and take an hour or more to fully charge, according to the company.
Toshiba's prototype batteries are lithium-ion batteries that contain a material in the negative electrode that is able to absorb about 80% of the battery's total power capacity in about a minute, according to Masayuki Ishikawa, assistant director at the company's Corporate Research and Development Center in Kawasaki, near Tokyo.