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Biomass-based colloidal electrolyte and biomass-based colloidal electrolyte super capacitor

A colloidal electrolyte and supercapacitor technology, which is applied in the manufacture of hybrid/electric double layer capacitors and hybrid capacitor electrolytes, can solve the problems of increased cost and complicated preparation process, and achieve cost saving, simple operation, and easy large-scale industrial production Effect

Active Publication Date: 2016-03-23
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation process of polyacrylamide gel is complicated, and cross-linking agent, buffer solution and initiator need to be added, which increases the cost

Method used

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  • Biomass-based colloidal electrolyte and biomass-based colloidal electrolyte super capacitor
  • Biomass-based colloidal electrolyte and biomass-based colloidal electrolyte super capacitor
  • Biomass-based colloidal electrolyte and biomass-based colloidal electrolyte super capacitor

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Weigh 3g of sea stone cauliflower and rinse it repeatedly with deionized water, then soak it in deionized water for 2 hours, put it into 300ml of deionized water and heat until the water boils, continue heating for 2 hours, sea stone cauliflower dissolves, and then filter the remaining waste residue Lose. Boil with low heat for 3 hours, evaporate excess water, stop heating, and pour in the prepared KOH electrolyte until the solution is not completely cooled to form sea stone cauliflower-KOH sol (the mass percentage of sea stone cauliflower sol About 30%, the concentration of KOH is 6mol / L).

[0039] Mix activated carbon, conductive carbon black and polytetrafluoroethylene binder uniformly according to the mass ratio of 85:10:5, stir well and repeatedly extrude to break the emulsification to obtain a plastic mixture. The resulting mixture was rolled into a film. The dried electrode membrane is cut, and then pressed onto the current collector foamed nickel to obtain an ...

Embodiment 2

[0042] Weigh 3g of sea stone cauliflower and rinse it repeatedly with deionized water, then soak it in deionized water for 2 hours, put it into 500ml of deionized water and heat until the water boils, continue heating for 2 hours, sea stone cauliflower dissolves, and then filter the remaining waste residue Lose. Boil for 4 hours on low heat, evaporate the excess water, stop heating, and pour the prepared Na solution until the solution is not completely cooled. 2 SO 4 Electrolyte, forming sea stone cauliflower-Na 2 SO 4 Sol (wherein the mass percentage composition of seastone cauliflower sol is about 20%, Na 2 SO 4 The concentration is 1mol / L).

[0043] Mix activated carbon, conductive carbon black and polytetrafluoroethylene binder uniformly according to the mass ratio of 85:10:5, stir well and repeatedly extrude until the emulsification is broken to obtain a plastic mixture. The resulting mixture was rolled into a film. The dried electrode membrane is cut, and then pre...

Embodiment 3

[0046] Weigh 10g of sea stone cauliflower and rinse it repeatedly with deionized water, then soak it in deionized water for 2 hours, put it into 800ml of deionized water and heat until the water boils, continue heating for 3 hours, sea stone cauliflower dissolves, and then filter the remaining waste residue Lose. Boil for 6 hours on low heat, evaporate excess water, stop heating, and pour in the prepared K until the solution is not completely cooled. 4 Fe(CN) 6 Electrolyte to form Seastone Cauliflower-K 4 Fe(CN) 6 Sol (wherein the mass percent composition of seastone cauliflower sol is about 50%, K 4 Fe(CN) 6 The concentration is 0.1mol / L).

[0047] Mix activated carbon, conductive carbon black and polytetrafluoroethylene binder uniformly according to the mass ratio of 85:10:5, stir well and repeatedly extrude until the emulsification is broken to obtain a plastic mixture. The resulting mixture was rolled into a film. After the diaphragm is dried, it is cut, and then th...

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Abstract

A biomass-based colloidal electrolyte and a biomass-based colloidal electrolyte super capacitor belong to the technical field of a super capacitor. A preparation method of the biomass-based colloidal electrolyte comprises the following steps: mixing and heating sea gelidium amansii and deionized water until boiling, enabling the sea gelidium amansii to be dissolved in the deionized water, forming a colloidal sol through small-fire stewing, and then mixing with different types of electrolytes to form a colloidal electrolyte. The super capacitor assembled by the biomass-based colloidal electrolyte has the advantages of low internal resistance and high power density. Furthermore, the biomass-based colloidal electrolyte has the advantages of simple preparation process, good safety and environmental protection, and has the advantage that large-scale industrial production is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, and in particular relates to a biomass-based colloidal electrolyte and a biomass-based colloidal electrolyte supercapacitor. Background technique [0002] Supercapacitor is a new type of energy storage device with higher energy density than traditional capacitors and higher power density than secondary batteries. It has the advantages of fast charging and discharging speed, high efficiency, long cycle life, wide operating temperature range, high safety, etc., and has broad application prospects in the fields of electric vehicles, weapons and equipment, aerospace, and power energy storage. [0003] At present, supercapacitors use aqueous or organic electrolytes. During transportation and use, the shell of supercapacitors is prone to damage and electrolyte leakage occurs. In addition, the corrosion of the electrolyte may also cause damage to the casing of the supercapacitor. The leakage o...

Claims

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Application Information

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IPC IPC(8): H01G11/56H01G11/84
CPCY02E60/13
Inventor 阎景旺高兆辉李然姜靓
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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