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Supercapacitor device and downhole system with supercapacitor device

A technology for supercapacitors and current collectors, applied in hybrid capacitor current collectors, hybrid capacitor electrodes, hybrid capacitor electrolytes, etc., can solve high-intensity vibration and other problems

Inactive Publication Date: 2017-06-23
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There may also be high-intensity vibrations

Method used

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  • Supercapacitor device and downhole system with supercapacitor device
  • Supercapacitor device and downhole system with supercapacitor device
  • Supercapacitor device and downhole system with supercapacitor device

Examples

Experimental program
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Effect test

example 1

[0042] Build the supercapacitor unit as described above. The two working electrode layers are formed from activated carbon. Each conductive layer is formed of metallic silver. An electrolyte impermeable smooth carbon layer separates each working electrode from its corresponding conductive layer. The inert matrix used is glass. Glass fibers are used as electrode separator material. The electrolyte used is an ionic liquid electrolyte composed of hexyltriethylammonium cation and bis(trifluoromethylsulfonyl)imide anion. Its voltammetric response was measured.

[0043] image 3 A graph showing the voltammetric response of the supercapacitor in the range of 4V at 220°C. As can be seen from this graph, the supercapacitor is stable at high temperature for many cycles and can operate reliably over a wide voltage range (4V). The test was arbitrarily terminated after 100 cycles.

example 2

[0045] The ionic liquid gel was formed by adding fumed silica gel (Sigma-Aldrich, product number S5130) to each ionic liquid. The ionic liquid used can be triethylsulfonium bis(trifluoromethylsulfonyl)imide, hexyltriethylammonium bis(trifluoromethylsulfonyl)imide (hexyltriethylammonium bis(trifluoromethylsulfonyl)imide), or butyl Trimethylammonium bis (trifluoromethylsulfonyl) imide (butyltrimethylammonium bis (trifluoromethylsulfonyl) imide). The amount of fumed silica mechanically diffused into the ionic liquid was 7.5 weight percent of the total weight of the electrolyte phase. In some cases, the amount of fumed silica can be doubled and ferrocene (10 mM) can be added as a redox activity detection reagent.

[0046] Figure 4 It is shown that when silicon is not included, the amount of hydrophilic silicon nanoparticles (S5130) is 7.5 weight percent of the total weight of the electrolyte phase, and the amount of hydrophilic silicon nanoparticles (S5130) is 15% of the total ...

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PUM

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Abstract

Disclosed is a supercapacitor device having a housing and at least one supercapacitor unit disposed within the housing, wherein the supercapacitor unit may include: two working electrode layers separated by an electrode separator, wherein each working The electrode layer is electrically connected to a current collector supported on the inert matrix layer; an electrolyte permeation prevention layer for protecting the conductive layer disposed between each working electrode layer and each conductive layer; and disposed between the working electrode layer and the electrode An ionic liquid electrolyte in the region occupied by the separator, wherein the ionic liquid electrolyte has at least one cationic component comprising a central cation to which is bound an asymmetrically arranged substituent. Ionic liquid electrolytes can be gelled by silica gels to inhibit the flow of electrolytes. The operating range of the ultracapacitor device is at least 20 to 220°C.

Description

Background technique [0001] Wells are commonly drilled into the earth to recover naturally deposited oil and gas or other minerals trapped in geological formations. To drill a well, a drill bit is connected to the lower end of an assembly of drill pipe sections connected end to end to form a "drill string". The drill bit is rotated by rotating the drill string at the surface or by actuation of a downhole motor or turbine, or both. Drilling fluid is pumped down through the drill string to the drill bit, from which it flows and carries cuttings away from the bottom of the hole through the annulus between the drill string and the borehole wall to the surface. [0002] In addition to the drill bit, the bottom hole assembly (BHA) typically includes other tools, sensors, or devices located thereon that are used during the drilling process. The downhole tool may also be suspended in the wellbore on a wireline that is sent down the wellbore after the drilling process is complete or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B4/06E21B47/09E21B21/08E21B44/00
CPCH01G11/28H01G11/62H01G11/70Y02E60/13H01G11/14H01G11/64H01G11/18H01G11/24
Inventor S·弗莱彻V·J·布莱克
Owner PRAD RES & DEV LTD
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