充電15分鐘 超級電池可用一周


帶領研究團隊的美國西北大學化學及生物工程系教授哈羅德.孔(Harold Kung)表示,電池的充電速度和蓄電量,關乎電池中鋰離子的密度和活動速度。研究員集中改良電池的正極物料,將一般鋰電池採用的矽片改為微細矽粒,以增加電池包含的鋰離子數量,提升蓄電量,並採用石墨烯片,在其上鑽上數以百萬個20至40納米寬的小孔,幫助鋰離子快速移動,加速化學反應,以增加充電速度。




Categories: 圖片◆文摘
Accelerated Recharging: Scientists Discover How to Charge Laptops and Cellphones 10 Times Faster and 10 Times Larger

Scientists from Northwestern University in the U.S. have discovered how to charge laptops and cellphones 10 times faster and 10 times larger, as reported by BBC, November 15, 2011.

According to the report, Dr. Harold Kung’s team was able to do this by increasing the density and movement of lithium ions in the battery, using small holes (20 to 40 nm wide) for chemical oxidation.

They also used “tiny clusters of silicon so that there are more lithium ions for the battery to hold on to.”

The scientists said that the technology allows 15 minutes re-charging that could last for a week. The original speed would decline though after 150 times of recharging, but reportedly, it is still faster than the old method.

The accelerated battery recharging technology could only be available in shops within 5 years.

BBC said that the complete research paper has been published in the “Advanced Energy Materials” journal.
17 十一月 11 at 10:46
personal training certification institute