改進(jìn)的石墨電池材料

A Splash Of Graphene Improves Battery Materials
— Researchers would like to develop lithium-ion batteries using titanium dioxide, an inexpensive material. But titanium dioxide on its own doesn't perform well enough to replace the expensive, rare-earth metals or fire-prone carbon-based materials used in today's lithium-ion batteries.

To test whether graphene, a good conductor on its own, can help, Pacific Northwest National Laboratory's Gary Yang and colleagues added graphene, sheets made up of single carbon atoms, to titanium dioxide.

When they compared how well the new combination of electrode materials charged and discharged electric current, the electrodes containing graphene outperformed the standard titanium dioxide by up to three times. Graphene also performed better as an additive than carbon nanotubes.

Yang will discuss this work and provide an overview of the field of electrical storage materials at this year's Micro Nano Breakthrough Conference in Portland, Oregon (see: http://oregonstate.edu/conferences/MNBC/).

Graphene 濺改善電池材料
—研究員想要使用鈦二氧化物，廉宜的材料發(fā)展鋰－離子的電池。但是鈦二氧化物靠它自己不很好地，足夠運(yùn)行代替昂貴、稀有地球金屬或者被用于今天的鋰－離子電池的容易火的以碳為基礎(chǔ)的材料。

測(cè)試是否 graphene，一個(gè)好領(lǐng)導(dǎo)者靠它自己，能幫助，太平洋西北的國立實(shí)驗(yàn)室蓋瑞楊和同事把 graphene ，由單一碳原子組成的床單，加入鈦二氧化物。

當(dāng)他們比較了電極材料的新組合索取并且釋放電流有多好，包含 graphene 的電極贏過了標(biāo)準(zhǔn)鈦二氧化物被在到上面三次。Graphene 也更好地運(yùn)行當(dāng)做一個(gè)添加劑勝于碳納米管。

楊將會(huì)在波特蘭，奧勒岡州的今年微十億分之一突破會(huì)議中討論這一個(gè)工作而且提供電儲(chǔ)藏材料的領(lǐng)域的概觀。（見到： http ：||oregonstate.edu│會(huì)議│MNBC│)

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