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“Blood Batteries”

“Blood Batteries”. By Brandon Brunelle. What is it?. An energy source that can run off of an array of electrolytes including bodily fluids.. safe ultrathin flexable durable . Needs. The goal is to build a hybrid of a battery and super capacitor in one entity.

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“Blood Batteries”

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  1. “Blood Batteries” By Brandon Brunelle

  2. What is it? • An energy source that can run off of an array of electrolytes including bodily fluids.. • safe ultrathin flexable durable

  3. Needs • The goal is to build a hybrid of a battery and super capacitor in one entity. • Super capacitor: • Large discharge • Electrolytes; either aqueous or solid, are used to separate plates. • Battery • Electro chemical cells used to store and convert chemical energy

  4. Technology • Nanocomposite paper (CNT cellulose–RTIL) • Multiwallednanatubules(MWNT) are grown on silicon substrate. • Plant cellulose dissolved in RTIL is infiltrated into MWNT • The resulting film is cleaned using ethanol and then set on dry ice to remove ethanol. • On the order of 10 microns thick. • Remarkable bending and twisting ability without deformation • Cellulose is randomly porous anywhere between 45 and 55nm between pores. Pore density can be increased or decreased.

  5. Design • MWNTs serve the purpose of electrodes. • Cellulose acts as the insulator • RTIL as the self sustaining electrolyte • Two nanocomposites are used to create supercapacitor

  6. Results • Record breaking operating temperature of 195K-423K • Different aqueous and nonaqueous electrolytes were used. • Device was tested at 77K • The device was found to work when compounds such sweat and blood were used as the electrolyte • Development of flexible lithium ion battery was also designed.

  7. Conclusion • Uninteruptable durable energy source • Can be adapted to operate medical devices • Cost effective • Good future ahead

  8. Sources • Published online before print August 15, 2007, doi: 10.1073/pnas.0706508104 PNAS August 21, 2007 vol. 104 no. 34 13574-13577 • http://www.pnas.org/content/104/34/13574.full • http://www.howstuffworks.com/framed.htm?parent=blood-battery.htm&url=http://news.rpi.edu/update.do?artcenterkey=2280 • http://batteryuniversity.com/partone-8.htm

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