Battery to “breathe” to improve the power
laptop battery and mobile phones using the capacity of the lithium-ion battery is limited, as the British “website of the magazine New Scientist reported on the 19th, the British chemist to make new breakthroughs in Lithium battery - Battery to “breathe” oxygen from the air so that the power increases several times.
University of St Andrews Professor Peter • Bruce said, the traditional lithium-ion battery consists of a graphite anode, a cathode and cobalt oxide lithium electrolyte lithium salt, the main problem of this oxide cobalt lithium battery is too large, bulky Look.
Bruce and his colleagues have launched a “cell lithium-air research. The new battery without the need for high-density oxide of cobalt, lithium, more lasting power. In addition, the materials the charging light porous carbon from the electrolyte to penetrate completely into the porous carbon materials. When the battery is discharged, the air will be plenty of oxygen through the membrane into the porous carbon materials, and electrolytes in response to lithium-ion releasing electronics, lithium oxide in the solid state carbon porous electrode gradually fill the gaps. During loading, the oxide decomposes and release lithium ions, increasing the gap of carbon materials, the oxygen released into the air.
Professor Bruce said the new battery, just like ordinary batteries and fuel cells, “mixed blood”, both external and reaction, but also the internal reaction, and lithium is 8-10 times traditional.
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