Application of sodium-type sulfonated polyetheretherketone as binder in zinc-nickel redox flow battery electrodes

A technology of sulfonated polyether ether ketone and liquid flow battery, which is applied in battery electrodes, fuel cells, regenerative fuel cells, etc., and can solve problems such as attenuation and unstable performance of binders

Active Publication Date: 2021-05-04
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem of performance attenuation caused by the instability of the binder under alkaline conditions

Method used

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  • Application of sodium-type sulfonated polyetheretherketone as binder in zinc-nickel redox flow battery electrodes
  • Application of sodium-type sulfonated polyetheretherketone as binder in zinc-nickel redox flow battery electrodes
  • Application of sodium-type sulfonated polyetheretherketone as binder in zinc-nickel redox flow battery electrodes

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Embodiment 1

[0020] The sulfonated polyetheretherketone resin was soaked in 4M sodium bicarbonate solution at 60°C for 3 hours, washed with water and dried to obtain sodium-formed sulfonated polyetheretherketone (SPEEK) resin.

[0021] Slurry configuration: in parts by weight, 5 parts of sodium-type sulfonated polyether ether ketone, 10 parts of carbon powder, and 85 parts of nickel hydroxide are dissolved in dimethylformamide to obtain a slurry for use; Coating method Apply the slurry evenly on the 36cm 2 On the carbon felt, the carbon felt coated with the slurry is vacuum-dried at high temperature. The drying temperature is 80°C, the drying time is 600s, the vacuum degree is 0 MPa, and the pressure is maintained and the temperature is lowered to room temperature to obtain the electrode product.

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Abstract

The invention relates to a zinc-nickel flow battery, in particular to the application of sodium-type sulfonated polyether ether ketone as a binder in the electrode of the zinc-nickel flow battery. The invention solves the problem of performance attenuation caused by unstable binder under alkaline conditions.

Description

technical field [0001] The invention relates to a zinc-nickel flow battery, in particular to a binder for the positive electrode of the zinc-nickel flow battery, an electrode and a preparation method thereof. Background technique [0002] As the world's energy consumption demand continues to grow, exploitable petroleum resources are increasingly depleted, while environmental pollution is becoming more serious, how to solve the increasing energy demand for global economic development and the aggravation of environmental pollution has become a global problem. Therefore, countries around the world are paying more and more attention to the storage and reuse of clean energy such as wind energy and solar energy, and the research on accelerating the replacement of fuel vehicles by electric vehicles. [0003] Zinc-nickel flow battery is a new type of low-cost, high-efficiency, and environment-friendly flow energy storage battery. It has the advantages of high energy density and curr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86H01M4/88H01M8/18
CPCH01M4/8668H01M4/8825H01M4/8828H01M4/8835H01M4/8871H01M8/188Y02E60/50
Inventor 赖勤志李先锋张华民刘新运郑建伟
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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