STORAGE BATTERY
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United States of America Patent
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Issued Date -
Jan 21, 2010
app pub date -
Dec 13, 2007
filing date -
Dec 14, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A storage battery of the present invention is a capacitor-type storage battery having a short charging time and a long life, and capable of realizing a high output voltage. The storage battery includes a metal sheet 10 connected to a first terminal 22, a first metamaterial film 13 formed on a front surface of the metal sheet 10, and a first conductive film 12 formed on the first metamaterial film 13 and connected to a second terminal 21. The first metamaterial film 13 is a polycrystalline semiconductor film, and in each of crystal grains constituting the polycrystalline semiconductor film, the inside is of a first conductivity type, and the vicinity of interface is of a second conductivity type. An oxide insulating film may be formed on a surface of the metal sheet 10.
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