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A composition for organogel and its pyrolysis product and its preparation method, as well as an electrode formed from the pyrolysis product and a supercapacitor comprising the electrode

A composition and gel technology, which is applied to the composition and preparation of organic gels and their pyrolysis products, can solve the problems of high price, low viscosity, and inactivity of energy storage, and achieve easy drying and low cost small damage effect

Inactive Publication Date: 2017-03-29
HUTCHINSON SA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method, has the following disadvantages: the use of binders makes the system heavy and not active for energy storage
In fact, in order to obtain carbon electrodes with the aforementioned thickness less than or equal to 0.5 mm, these methods must include a final polishing / rectification step, which has the disadvantages of being expensive, difficult to implement and causing considerable material loss
A major disadvantage of the irreversible chemical gel described herein is its very low viscosity, which makes it completely impossible to be coated with a thickness of less than 2mm

Method used

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  • A composition for organogel and its pyrolysis product and its preparation method, as well as an electrode formed from the pyrolysis product and a supercapacitor comprising the electrode
  • A composition for organogel and its pyrolysis product and its preparation method, as well as an electrode formed from the pyrolysis product and a supercapacitor comprising the electrode
  • A composition for organogel and its pyrolysis product and its preparation method, as well as an electrode formed from the pyrolysis product and a supercapacitor comprising the electrode

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Embodiment Construction

[0072] Preparation examples of carbon-based compositions:

[0073] The following examples illustrate the advantages of the present invention in comparison to the "controlled" pyrolysis products C0' and C0" of the three "controlled" gelling compositions G0, G0' and G0" and their corresponding G0' and G0" The preparation of the four gel compositions G1 to G4 described above, and the preparation of the four pyrolysis compositions C1 to C4 described in the present invention, which are obtained by thermal decomposition of G1 to G4 respectively, are illustrated.

[0074] To obtain the gelling compositions G1 to G4 and G0, G0' and G0", the following reagents were used in the polycondensation reaction of resorcinol R and formaldehyde F:

[0075] ——Resorcinol (R) from Acros Organics, with a purity of 98%,

[0076] ——formaldehyde (F) derived from Acros Organics, with a purity of 37%,

[0077] - catalyst (C) contains sodium carbonate and

[0078] - Polydimethyldiallylammonium chloride...

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Abstract

The present invention relates to a non-crosslinked gelled carbon-based composition and a pyrolyzed composition, which respectively form an aqueous polymer gel and its pyrolysis product in the form of a porous carbon. The invention also relates to a method for its preparation, and to a porous carbon electrode formed from a pyrolytic composition, and to a supercapacitor comprising said electrode. The non-crosslinked gelled carbon-based composition (G2) is based on a resin at least partially derived from (poly)phenol R and (poly)oxymethylene F and comprises at least one water-soluble cationic polyelectrolyte P. According to the invention, the composition forms a shear thinning physical gel. A pyrolyzed carbonaceous composition comprising monolithic carbon according to the present invention, which is the coating, crosslinking, drying and thermal decomposition product of said non-crosslinked gelled carbon-based composition, mainly microporous The monolithic carbon can form a supercapacitor electrode with a thickness of less than 1mm.

Description

technical field [0001] The present invention relates to a non-crosslinked gelled carbon-based composition and a pyrolyzed composition, which respectively form an organic polymer gel and its pyrolyzed product in the form of a porous carbon, and to processes for their preparation, It also relates to a porous carbon electrode comprising the pyrolysis composition and a supercapacitor comprising the electrode. The invention is especially suitable for supercapacitors suitable for equipping electric vehicles. Background technique [0002] Supercapacitor is a kind of electric energy storage system, which is especially beneficial to the field that needs to transmit high-power electric energy. [0003] Their ability to charge and discharge quickly and have a longer service life than high-power batteries make them the most promising choice for many applications. A supercapacitor generally consists of a combination of two conductive porous electrodes with a large specific surface area...

Claims

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Application Information

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IPC IPC(8): C01B32/05
CPCC08J3/075C08J2361/12C08J9/28C08G8/20C08G8/22C08G73/0206C08L61/12C08J2201/0504C08J2205/028C08J2205/042C01B32/05C04B35/524C04B38/0022C04B2111/00844C04B2111/00853C04B2235/48Y02E60/13C08L79/02C08L39/08C08L39/02C08L33/26C08L33/14C04B38/0045C04B38/0054H01G11/04H01G11/26H01G11/32C09D161/00H01G11/28H01G11/62
Inventor 布鲁诺·杜福尔雅尼克·比阿洛雨果·多里皮耶尔-埃克塞·帕罗达菲利普·索恩塔格
Owner HUTCHINSON SA
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