Foil for Li-Ion batteries will bring 30 % more charge ?

[hartiberlin]

Hi All,
there is a new "foil" which must be glued onto the backside of a Li-Ion
accumulator and is said to give 30 % more charge inside the accu ?
How does this work, if it is not physically contacted onto the battery
electrodes ?
Is this some kind of "Radiant" foil, which lets the accu better charge up ?

At least the TUEV report states, that it works and a few other reports also !

Here is the link to it:

http://www.batterylife.de/

How does it work ?

Regards, Stefan.

[iceweller]

  Stefan,

  interesting product. I still have to verify if it is what think it is - in the mean time, this is what a link there reports:

ENERGY Conversion and Use 

With the use of nanotechnology it is possible to get higher efficiency for energy conversion. The center of attention is the material-lateral improvement (f.e. employment of nano-technological materials in the Photovoltaik and in gas cells) A further emphasis is the low-loss storage of energy. The efficient storage of hydrogen still represents a challenge. By methods of micro- and nano-structuring, the proportion in chemical storage of the hydrogen can be increased. The storage of hydrogen in nano-tubes made from carbon and other derivatives - in expectation of higher proportions - are still being researched.

Nano-materials can be used for the increase of battery-efficiency, mini-akkus (f.e. thru the use of nano-tubes in Li-Ion batteries) and for electro-chemical capacitors (supercapacitors). Additionally there is also big expectation in using the combination of supercapacitors and batteries for driving-purposes (f.e. storage of powerbrake-energy in electro-cars). The high losses in the case of current-transport make the use of superconducting lines even more interesting. The hope there is the use of nano-tubes, those superconductivities used at ambient temperature are considered possible.

   Here is the german source link discussion:

http://www.myresearch.de/board.php?company=525&btype=7&cmd=show

   All of the above is naturally inconclusive and doesn't really reveal much about the product.

   Regards

[betajim]

These foil battery stickers have been sold in the US for a couple years now. I
first saw them targeted at cell phone batteries. To put it simply, this product
doesn't work. It only exists to seperate the credulous from their money.

[iceweller]

   I managed to get one of those stickers from a friend for free to try out. They are shipped in a small package with a big A3 instructions leaf in various languages. There's not much to do, just stick it on the Li-Ion or Li-Poly cell of your cellphone. As these cells are usually all 50x35mm it fits nearly all phones. We'll see what happens with my company phone.

   Regards

[hartiberlin]

Hi Iceweller,
yes, please let us know.
As the effect is probably pretty small it would need
a real measurement test to see any difference.

Do you have any test equipment to do this ?
Does the leaflet state, how it should work ?

Regards, Stefan.