of Invention

Jie TANG

Patent

Atlas literature

Patent

US 10,479,689

of Invention

Jie TANG

Drawings

Patent drawings and their descriptions. Click a drawing to enlarge it.

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FIG. 27

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

3 independent · 5 dependent

1
Independent
1-22. Canceled
22
Independent
Canceled
23
Independentultrathin graphene piecegraphite electrode
A method for preparing an ultrathin graphene piece, comprising sequentially applying: a ﬁrst voltage of +0.1 V to +10 V between a graphite electrode used as an anode and a counter electrode used as a cathode for 1 minute to 10 minutes, a second voltage of +1 V to +10 V between the graphite electrode and counter electrode for 1 minute to 10 minutes, a third voltage of +5 V to +15 V between the graphite electrode and counter electrode for 1 hour to 2 hours, and an activation processing step of applying a voltage of +5 V to +15 V between the graphite electrode and counter electrode for 60 minutes to 120 minutes, to obtain an ultrathin graphene piece comprising less than 10 overlapped graphene layers and at least one through hole penetrating a front and a rear side of the graphene piece. New
1. 24
  Dependent← claim 23ultrathin graphene piece
  The method for preparing the ultrathin graphene piece according to claim 23, further comprising, after applying the third voltage, an organic solvent dispersion step of dispersing powder which is obtained by ﬁltering, washing, and drying the electrolytic solution in an organic solvent, and irradiating ultrasonic waves. New
2. 26
  Dependent← claim 23
  The method for preparing the ultrathin graphene piece according to claim 23, further comprising, after the activation processing step, a modifying molecule removing step of applying a voltage in a reverse direction with the same value of the voltage applied in the activation processing step. New
3. 28
  Dependent← claim 23graphite electrodeelectrochemical exfoliation apparatus
  The method for preparing the ultrathin graphene piece according to claim 23, wherein the ﬁrst voltage, the second voltage and the third voltage are applied between the graphite electrode and the counter electrode with an apparatus comprising: the graphite electrode; the counter electrode made of graphite, a corrosion resistant alloy, or a precious metal; an electrolytic solution, wherein one side of the graphite electrode and one side of the counter electrode are immersed in the electrolytic solution; a container storing the electrolytic solution; a power source connected to the graphite electrode and counter electrode via wirings, and a porous ﬁlter covering at least the immersed side of the graphite electrode immersed in the electrolytic solution. New

Device structures

Layer stacks claimed or described, ordered top of device to substrate.

electrochemical exfoliation apparatus

No layer stack recorded.

Materials

Materials described outside the worked examples.

ultrathin graphene piece

Product

graphite electrode

Anode Precursor

Process steps

Additional fabrication and treatment steps described in the patent.

Electrochemical Exfoliation

Step 1

Duration

60, 120 min

Process details

first voltage V:+0.1 to +10

third voltage V:+5 to +15

second voltage V:+1 to +10

Characterization

Measurements and analyses referenced in the patent, with their drawing references.

durability test

Durability

durability, the capacitor has marketability. As described above, the ultrathin graphene piece, the apparatus for preparing ultrathin graphene pieces, method for preparing ultrathin graphene pieces, the capacitor, and the method of manufacturing capacitor of th

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
Voltage	≥ 8 V	—
Duration	1–10 minutes

Why these are connected

Related documents with shared materials, methods, properties, or citations.

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