Zinc-deposition type liquid flow energy-storage battery system and running way thereof

A liquid flow energy storage battery, deposition-type technology, applied in the direction of fuel cell additives, regenerative fuel cells, etc., can solve the problem of low battery energy density, affecting battery life and energy density, zinc dendrites are easy to form passivation film, etc. problem, to achieve the effect of improving energy density, voltage efficiency and energy efficiency

Active Publication Date: 2012-07-04
DALIAN RONGKE POWER
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Problems solved by technology

However, under alkaline conditions, the problem of zinc dendrites is serious during charging and a passivation film is easily formed on the surface of the zinc deposition layer, which affects the actual service life and energy density of the battery, and an excessively high charging...

Method used

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  • Zinc-deposition type liquid flow energy-storage battery system and running way thereof
  • Zinc-deposition type liquid flow energy-storage battery system and running way thereof
  • Zinc-deposition type liquid flow energy-storage battery system and running way thereof

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Embodiment 1

[0025] SelectBr 2 / Br - The electric pair serves as the positive electrode electric pair and the deposition type zinc negative electrode system proposed in the present invention constitutes a flow energy storage battery system. like figure 1 The system consists of the following three parts, the battery part: deposited zinc negative electrode graphite plate, positive electrode carbon felt, proton exchange membrane, battery case; electrolyte storage part: negative electrode electrolyte, negative electrode storage tank, positive electrode electrolyte, positive electrode storage tank ; Electrolyte transmission part: liquid pump, pipeline, control system.

[0026] The negative electrode electrolyte is divided into a charged state electrolyte and a discharged state electrolyte, which are separately stored in a negative electrode electrolyte storage tank. When charging, use 40ml of acidic solution containing zinc ions to make up 2 mol / L ZnBr 2 , 1 mol / L KBr composition. When di...

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Abstract

The invention relates to a liquid flow energy-storage battery system which consists of a deposition-type zinc negative pole, negative electrolyte, a negative pole storage tank, a positive pole, positive electrolyte, a positive pole storage tank, a liquid pump, a pipeline and a control system. The negative electrolyte is charging state electrolyte and discharging state electrolyte; an acid solution containing zinc ions can be adopted in charging, and an alkaline zincate solution is adopted in discharging; the electrolytes can be sent into the battery from the storage tanks through the pipeline by the liquid pump; and the liquid flow battery system has the advantage that the actual voltage efficiency is more than 100%.

Description

technical field [0001] The invention relates to a liquid flow energy storage battery system, in particular to a zinc deposition type liquid flow energy storage battery system and its operation mode. technical background [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 f...

Claims

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Application Information

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IPC IPC(8): H01M8/18H01M8/04
CPCY02E60/528Y02E60/50
Inventor 张华民赖秦志张立群
Owner DALIAN RONGKE POWER
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