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A multicomponent approach to enhance stability and capacitance in polymer-hybrid supercapacitors

A technology of polymers and polymer materials, applied in the directions of hybrid capacitor electrodes, hybrid capacitor electrolytes, hybrid capacitor separators, etc. issues of sex

Inactive Publication Date: 2016-06-29
RGT UNIV OF CALIFORNIA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the low electrochemical cycling stability of electroactive polymers remains a serious problem hindering the development of stable polymer-based supercapacitors and battery devices. [3b,7]

Method used

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  • A multicomponent approach to enhance stability and capacitance in polymer-hybrid supercapacitors
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  • A multicomponent approach to enhance stability and capacitance in polymer-hybrid supercapacitors

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Embodiment

[0040] The polymer hybrid supercapacitor was prepared as follows. By suspending commercially available emeraldine base (M=50,000) in water / DMSO, 1:1 solution (50mg / mL, 1MH 2 SO 4 Middle) to prepare the polymer electrode. The doped polymer suspension was sonicated for 45 minutes and placed in a 200nmx1cm 2 Dimensions for mass fabrication by drop casting on platinum substrates. The films were then dried at 40 °C for 1 hour in the presence of air and six hours at room temperature. No carbon material is used to alter the surface properties of the polymer. BQHQ (73mM, 1:1) solution was prepared by dissolving BQ and HQ in aqueous H 2 SO 4 (1M) and AcOH (30%) were freshly prepared by dissolving the formed quinhydrone complex. Fabricate a supercapacitor device by using two identical polymer electrodes. They are separated using electrolyte-soaked glass filters. Before the long cycle test, in the BQHQ electrolyte solution at a constant current (2.5mA / cm 2 , 15×±0.65 V) to prec...

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Abstract

An electrochemical energy storage device includes a first polymer electrode and a second polymer electrode spaced apart from the first polymer electrode such that a space is reserved between the first and second polymer electrodes. The space reserved between the first and second polymer electrodes contains an electrolyte that comprises a quinone compound. The first and second polymer electrodes each consist essentially of acid-dopable polymers.

Description

[0001] This application claims priority to US Provisional Application No. 61 / 866,398, filed August 15, 2013, the entire contents of which are hereby incorporated by reference. [0002] This invention was made with Government support under Grant No. DE-FG02-08ER46535 awarded by the Office of Basic Energy Sciences, Department of Energy. The United States Government has certain rights in this invention. technical field [0003] The field of the presently proposed embodiments of the present invention relates to electrochemical energy storage devices, and more particularly to electrochemical energy storage devices with enhanced stability and capacitance. Background technique [0004] Supercapacitors (electrochemical capacitors) are energy storage devices that exhibit high power density hundreds of times faster than batteries, as required for power and backup applications in vehicles, consumer electronics, and solar cells [1] . Although the current generation of commercially ava...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/44H01G11/86
CPCH01G11/86H01G11/48H01G11/58Y02E60/13H01G11/02H01G11/52H01G11/60H01G11/30H01G11/62
Inventor 大卫·冯兰腾佛瑞德·伍德艾伦·J·黑格帕维尔·拉扎列夫
Owner RGT UNIV OF CALIFORNIA
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