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Electrolyte used for zinc bromine flow battery

A zinc-bromine flow battery and electrolyte technology, which is applied to fuel cell components, fuel cells, regenerative fuel cells, etc., to reduce short-circuit phenomena, improve current efficiency and energy efficiency, and reduce costs

Active Publication Date: 2018-10-26
衡阳市大宇锌业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Electrolyte used for zinc bromine flow battery
  • Electrolyte used for zinc bromine flow battery
  • Electrolyte used for zinc bromine flow battery

Examples

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Comparison scheme
Effect test

Embodiment 1

[0052] An electrolyte solution for a zinc-bromine flow battery includes a positive electrode electrolyte and a negative electrode electrolyte.

[0053] The positive electrode electrolyte is composed of the following components: zinc bromide, zinc chloride, complexing agent, anti-dendrite, water; the molar solubility of zinc bromide in the positive electrode electrolyte is 1.68mol / L; The molar concentration of zinc chloride in the positive electrode electrolyte is 0.32mol / L; the molar concentration of the complexing agent in the positive electrode electrolyte is 0.5mol / L; the molar concentration of the anti-dendrite agent in the positive electrode electrolyte is 0.24 mol / L; Complexing agent is 1-butyl-1-methylpyrrolidine bromide in described positive electrode electrolyte; Anti-dendrite agent is lead bromide in described positive electrode electrolyte; The pH of described positive electrode electrolyte is 3, and the pH of the positive electrode electrolyte is adjusted with a hy...

Embodiment 2

[0059] An electrolyte solution for a zinc-bromine flow battery includes a positive electrode electrolyte and a negative electrode electrolyte.

[0060] Both the positive electrode electrolyte and the negative electrode electrolyte are composed of the following components: zinc bromide, zinc chloride, complexing agent, anti-dendrite, water; the molar solubility of zinc bromide in the positive electrode electrolyte is 1.68 mol / L; the molar concentration of zinc chloride in the positive electrode electrolyte is 0.32mol / L; the molar concentration of the complexing agent in the positive electrode electrolyte is 1.0mol / L; the anti-dendrite in the positive electrode electrolyte The molar concentration is 0.24mol / L; The complexing agent is 1-butyl-1-methylpyrrolidine bromide in the positive electrode electrolyte; The anti-dendrite agent is lead bromide in the positive electrode electrolyte; The pH of the positive electrode electrolyte is 3, and the pH of the positive electrode electro...

Embodiment 3

[0065] An electrolyte solution for a zinc-bromine flow battery includes a positive electrode electrolyte and a negative electrode electrolyte.

[0066] Both the positive electrode electrolyte and the negative electrode electrolyte are composed of the following components: zinc bromide, zinc chloride, complexing agent, anti-dendrite, water; the molar solubility of zinc bromide in the positive electrode electrolyte is 1.68 mol / L; the molar concentration of zinc chloride in the positive electrode electrolyte is 0.32mol / L; the molar concentration of the complexing agent in the positive electrode electrolyte is 1.5mol / L; the anti-dendrite agent in the positive electrode electrolyte The molar concentration is 0.24mol / L; The complexing agent is 1-butyl-1-methylpyrrolidine bromide in the positive electrode electrolyte; The anti-dendrite agent is lead bromide in the positive electrode electrolyte; The pH of the positive electrode electrolyte is 3, and the pH of the electrolyte is adjus...

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Abstract

The invention discloses an electrolyte used for a zinc bromine flow battery. The electrolyte used for the zinc bromine flow battery disclosed by the invention comprises an anode electrolyte and a cathode electrolyte. Each of the anode electrolyte and the cathode electrolyte consists of the following components: zinc bromide, zinc chloride, a complexing agent, a dendritic crystal resistant agent, awetting agent and water. Compared with the prior art, the complexing agent, the dendritic crystal resistant agent and the wetting agent are added into the electrolyte used for the zinc bromine flow battery, so that the electrolyte used for the zinc bromine flow battery can improve the current efficiency and energy efficiency of the battery.

Description

technical field [0001] The invention relates to a zinc-bromine flow battery, in particular to an electrolyte used for the zinc-bromine flow battery. Background technique [0002] With the development of human economy and society, the demand for energy is increasing, which makes the pressure of fossil energy security increasing; and the process of fossil energy conversion produces many environmental problems: for example, the emission of nitrogen and sulfur oxides causes acid rain, Emissions of greenhouse gases accelerate the process of global warming. Therefore, developing renewable energy, expanding its proportion in the energy structure, and improving energy efficiency will promote sustainable social development. [0003] As a clean and efficient secondary energy source, electric energy is closely related to the daily production and life of human beings. The ever-increasing demand for electric energy and the requirements for power quality require frequent expansion and up...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/18H01M8/02
CPCH01M8/02H01M8/188Y02E60/50
Inventor 袁峰
Owner 衡阳市大宇锌业有限公司
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