Beyond cover sheets and TPS reports–white copy paper could be the basis for lightweight, inexpensive batteries
Nanotechnologist Maria Strømme of Uppsala University in Sweden and her colleagues have also devised batteries with a paper made from seaweed. Because such paper had 100 times more surface area than that made from wood, it can hold dramatically more power, they reported in the October 14 Nano Letters.
One concern about the new sheets is their electrical resistances, which are some 10 times or more than those of the metal foils used as current collectors in conventional batteries. Such resistance slows the delivery of power. Cui suggests incorporating metal nanowires into their devices to lower resistance, thereby helping provide more electrical oomph.
Another major obstacle to implementing these findings is the current high price of carbon nanotubes. "However, carbon nanotube price will continuously drop as production ramps up," Cui notes. "The conductive paper concept can also be realized with other nanomaterials with potentially low cost, such as graphene."
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Conventional washing machines cause excessive damage and wrinkling to clothes primarily during the water removal step. With the introduc
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The Dow Chemical Company is the leading producer of polyalkylene glycols (PAGs) used in synthetic fluids and lubricants where petroleum,
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