真乄科技業的頂尖投資團隊

南加大的這個新電池技術，利用了有彈性且充滿洞的矽奈米線做為鋰離子電池的陽極，據稱可以提供今日鋰電池三倍的電容量，並且在十分鐘內完全充飽，同時還可提供高達 2000 次充放電的耐久度。

The number one technological hurdle separating humanity from the Jetson Future we deserve is developing a reliable power supply. Even today, we're barely even able to keep out phones alive through the evening commute. But a radical departure in Lithium ion battery technology could help keep our power-hungry gadgets online for days, not hours.

Conventional Lithium ion batteries, the rechargeable cells what power everything from phones to Priuses, generate current by shuttling positive lithium ions between microscopically thin sheets of carbon graphite located at each electrode. But as these sheets age, their capacity and discharge performance degrades. This is especially true in the new generation of lithium-silicon cells (silicon replacing toxic cobalt as the battery's anode)—the mechanical stress of accepting and discharging electrons causes these silicon sheets to crack over time.

Researchers at the University of Southern California have therefore done away with silicon sheets entirely. According to a study published in the journal Nano Research reports, a team headed by Viterbi School of Engineering professor Chongwu Zhou instead uses fields of porous silicon nano-tubes to shuffle electrons without wearing down and without losing capacity. What's more, the team's provisional patent indicates that this new battery structure could hit the market in just two to three years.

With a new generation of inexpensively-produced, environmentally-friendly, and long-lasting power sources at our disposal, phasers are only a matter of time. [Times of India - Image:Janaka Dharmasena / Shutterstock]

資料來源:http://gizmodo.com/5984066/new-lithium-battery-technology-triples-capacity-and-promises-fully-charged-cells-in-just-ten-minutes