Paper cups, paper diapers, even paper airplanes, why can’t we have paper batteries?

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Paper cups, paper diapers, even paper airplanes, why can’t we have paper batteries? [Copy link]

We already have paper cups, paper diapers, and even paper airplanes, so why can’t we have paper batteries ?

Newly emerging thin, flexible paper batteries, while not powerful enough to power everyday items like cell phones and digital cameras, could soon find a home in tiny label displays, smart cards, RFID tags and other mobile devices that require little power.

So-called " soft batteries " make use of conventional battery technology in paper packaging. The manufacturing process is based on conventional paper printing, with zinc, nickel or other metals applied to one side of the paper and manganese oxide or other oxides applied to the other side. The paper containing the electrolyte is used as a separator.

At least one unusual application has emerged. Power Paper has launched miniature flat flexible batteries for the cosmetics industry, which are used to remove wrinkles.

Source: http://ed-china.com/ART_8800015308_400003_500009_OT.HTM

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Very creative

gaoyanmei

Fun

wangkuande

There is a future!

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NTT Docomo has partnered with Aquafairy to develop a water-powered fuel cell for mobile phones . The prototype, which will be shown at the 2006 Japan Wireless Exhibition in Tokyo from July 19 to 21, is a polymer electrolyte fuel cell with a battery charger and a fuel cartridge measuring 24mm x 24mm x 70mm, capable of generating 2 watts of power.

The polymer electrolyte fuel cell (PEFC), based on Aquafairy's thin-film power technology, contains 10cc of water and a hydrogen-producing catalyst connected via a power supply unit containing a positive electrode, a solid electrolyte and a negative electrode.

The water in the fuel cartridge is injected into the catalyst to produce pure hydrogen, which is then delivered to the positive electrode in the power supply unit. There, the hydrogen is decomposed into H+ ions and electrons. The electrons flow from the positive electrode to the negative electrode through an external circuit, thus generating electricity, while the hydrogen ions are transferred to the negative electrode through the solid electrolyte and synthesize water with oxygen.

Docomo has been looking for a power solution using fuel cell technology, and last year it unveiled a prototype battery charger using a direct methanol fuel cell, which it developed in collaboration with Fujitsu Research Institute.

PEFC is considered to have better power generation performance than other technologies (including direct methanol fuel cells) because it processes hydrogen directly. Docomo said the PEFC prototype is less than one-quarter the size of the DMFC charger prototype but produces twice the power.

The prototype can produce 800 mAh of power at 3.6 V, three times the capacity of a lithium battery commonly used in Docomo's 3G mobile phones. A full charge takes about two hours, about the same time as charging with a power adapter.

Docomo aims to incorporate PEFC technology into battery chargers next year. Docomo and Aquafairy also hope to use this technology to develop a power supply unit that can be placed in mobile phones.

Source: Electronic Engineering Times

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Environmental protection, It is imperative!
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The National Science Foundation will fund research into solar heating and cooling prototypes that could replace traditional air conditioning systems. Scientists detailed the prototype technology, called active building envelopes (ABEs), at the 2006 Denver Solar Symposium. Professor Steven Van Dessel of Rensselaer Polytechnic Institute (RPI) described his team's work on the ABE system. He said ABEs could allow solar panels to be connected to thermoelectric heat pumps, reducing the cost of cooling and heating. "This technology could allow our system to be seamlessly attached to a variety of building surfaces," Van Dessel said, "making traditional air conditioning and heating equipment obsolete." The National Science Foundation will also fund Van Dessel's next project to make ABE technology economically viable by switching to low-cost thin-film materials. If successful, the thin-film materials could be used in other applications, such as automotive glass to heat or cool a car's interior. When electricity passes through a thermoelectric heat pump, one end of it becomes cold and the other end becomes hot. When one end of the heat pump is placed inside the container and the other end is placed outside the container, it can extract or absorb heat into the container. The ABE system combines thermoelectric elements with solar panels covering the entire building, plus an energy storage device, to heat and cool the building during the day or night. Van Dessel's team hopes to use low-cost thin-film materials to integrate solar cells and thermoelectric heat pumps into building windows and other surfaces, thereby controlling the indoor climate. Excerpt: Electronic Engineering Album