Vanadium ion liquid flow accumulator battery

Abstract

The present invention relates to a vanadium ion fluid-flow battery. Said invention is characterized by that on the electrochemical principle it uses liquid vanadium ion as active substance, and makes the vanadium ions with different valences produce oxidation reduction reaction to store or release electric energy.

Description

technical field

[0001] The invention relates to a flow battery in the field of new energy, in particular to a vanadium ion flow battery. Background technique

[0002] Most of the existing storage batteries fail due to problems such as softening and falling off of the active material, because the active materials are all solid, such as lead-acid battery yang: lead dioxide, yin: sponge lead. They are manufactured in the following way: after metal lead is ground into powder, add water and sulfuric acid to make lead paste, and then apply it on the lead grid. 2 ), sponge lead (Pb), these active substances must be firmly combined with the lead grid to serve the purpose of electron transport when they undergo energy conversion. From its reaction equation:

[0003] <chemistry num="001"> <chem file="200510031451_cml001.xml" / > < / chemistry>

[0004] It can be seen that the reaction is accompanied by the state change of the reaction subst...

Examples

Embodiment Construction

[0026] specific implementation

[0027] Two electrolyte pools 12 and several layers of battery cells are formed. The electrolyte pools 12 hold anode and catholyte solutions 9 and 10 respectively, and the anolyte solution 9 contains 9mol / L of H 2 SO 4 and 1~2mol / L (VO 2 ) 2 SO 4 Solution (optimally 2mol / L), the balance is water; catholyte 10 contains 9mol / L of H 2 SO 4 And 1~2mol / L VSO 4 Solution (optimally 2mol / L), the balance is water. The several layers of battery cells are stacked together, and each battery cell is formed by stacking bipolar electrodes 3, felt membranes 4, flow frames 2, separators 1, flow frames 2, felt membranes 4, and bipolar electrodes 3 in sequence , the diaphragm 1 separates the single cell into positive and negative two half-units; each electrolyte pool 12 is equipped with a pump 13, connected to each half-unit with a sealed pipeline 11; the flow frame 2 is a sealed pipeline 11 that flows through each half-unit The chann...

technical field

[0001] The invention relates to a flow battery in the field of new energy, in particular to a vanadium ion flow battery. Background technique

[0002] Most of the existing storage batteries fail due to problems such as softening and falling off of the active material, because the active materials are all solid, such as lead-acid battery yang: lead dioxide, yin: sponge lead. They are manufactured in the following way: after metal lead is ground into powder, add water and sulfuric acid to make lead paste, and then apply it on the lead grid. 2 ), sponge lead (Pb), these active substances must be firmly combined with the lead grid to serve the purpose of electron transport when they undergo energy conversion. From its reaction equation:

[0003] <chemistry num="001"> <chem file="200510031451_cml001.xml" / > < / chemistry>

[0004] It can be seen that the reaction is accompanied by the state change of the reaction subst...

Examples

Embodiment Construction

[0026] specific implementation

[0027] Two electrolyte pools 12 and several layers of battery cells are formed. The electrolyte pools 12 hold anode and catholyte solutions 9 and 10 respectively, and the anolyte solution 9 contains 9mol / L of H 2 SO 4 and 1~2mol / L (VO 2 ) 2 SO 4 Solution (optimally 2mol / L), the balance is water; catholyte 10 contains 9mol / L of H 2 SO 4 And 1~2mol / L VSO 4 Solution (optimally 2mol / L), the balance is water. The several layers of battery cells are stacked together, and each battery cell is formed by stacking bipolar electrodes 3, felt membranes 4, flow frames 2, separators 1, flow frames 2, felt membranes 4, and bipolar electrodes 3 in sequence , the diaphragm 1 separates the single cell into positive and negative two half-units; each electrolyte pool 12 is equipped with a pump 13, connected to each half-unit with a sealed pipeline 11; the flow frame 2 is a sealed pipeline 11 that flows through each half-unit The chann...

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