Currently, scientists are still often try to tubes (vacuum tubes) for micro-vacuum transformation, but not many success stories, has primarily due to the nature of glass packaging in most applications, the valve is replaced by transistors.
Argued, the University of Illinois at Urbana-Champaign (UniversityofIllinoisatUrbana-Champaign), researchers concluded that vacuum tubes to be used as a high energy-density batteries, or non-volatile memory from the base, said that in theory, nano - sized array of the energy density of the vacuum tubes up to three times the lithium-ion battery.
Researchers at the University of Illinois AlfredHubler with OnyeamaOsuagwu, published an article entitled: “Digital Quantum batteries: The energy and density of the nano-tube PA3591U-1BRS array is stored in the ‘paper, but research is still theoretical, or practical test.
The paper is establishing the presence of emission-based devices (field-emission devices) has clearly allows the study of current through the structure; authors contend that the field emission device of the nano-level through appropriate design, Electrical Breakdown (electric breakdown) Quantum to be in a position, the phenomenon of compression in the gap spacing of 10 nm is within their capacity very large.
The nano-tube array structure, the critical distance is slightly larger than the 10 nm distance from the cathode, anode, cathode rules for vertical alignment, fair with today’s advanced lithography nodes. Authors noted that the vacuum energy density to a vacuum breakdown (vacuum breakdown) is subject to limits, but in atmospheric pressure below the 106torr circumstances, the electric field would not have to residual gas (residualgas) and rely to the electrode surface properties.
Paper pointed out that the nano-tube energy and power density than lithium-ion batteries and electrochemical capacitors (electrochemicalcapacitors), the estimated weight per kg energy density of up to 1-Mjoule while the volume energy density per cubic meter up to 3 — Gjoules. And combining this number of quantum battery (although it requires the number of 1 billion to an array of vacuum tubes), there are many other advantages.
First, the tube is a traditional lithography wafer technology and application of metallic materials, silicon substrate, and can generate with silicon oxide as the insulating tube wall, the anode A1175 ， A1185 ，M8403 , apple iBook G4 12 inch batterymaterial is recommended for carbon nanotubes, cathode materials, you can Tungsten (Wolfram ). In addition, the battery can be easily integrated into the IC substrate, the chip that can be used as rechargeable batteries.
The vacuum-tube array, there are other benefits, including the charge and discharge rate will exceed all other components; authors also noted that due to the nano-tubes can be maintained for several years without interruption of power supply, and therefore can not nonvolatile memory components are used.