A kind of trivalent vanadium ion electrolyte and its preparation method and a kind of vanadium battery
A trivalent vanadium and electrolyte technology, which is applied in the field of vanadium batteries, can solve the problem of low purity of vanadium ion electrolyte and achieve the effect of reducing the impact
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preparation example 1
[0050] This preparation example is used to illustrate the trivalent vanadium ion electrolyte and preparation method provided by the present invention.
[0051] Production of the electrolytic cell: use polyethylene with a weight average molecular weight of 3.5 million to make the anode and cathode cells with specifications of 170×170×170mm, and place the perfluorosulfonic acid ion exchange membrane between the anode cell and the cathode cell and fix it , And then put the two platinum plates connected with the positive and negative electrodes of the constant voltage power supply in the anode pool and the cathode pool respectively. The effective area of the platinum plate is 100×100mm 2 .
[0052] Preparation of sulfuric acid solution containing vanadyl sulfate: first add 550 mL of deionized water to the reactor, and then add 259 mL of concentrated sulfuric acid to the reactor under stirring conditions. When the temperature rises to 80 ℃, 62 grams of V 2 O 3 With 74.5 g V 2 O 5 The m...
preparation example 2
[0062] This preparation example is used to illustrate the trivalent vanadium ion electrolyte and preparation method provided by the present invention.
[0063] Production of the electrolytic cell: use polyethylene with a weight-average molecular weight of 4 million to make the anode and cathode cells with specifications of 170×170×170mm, and place the perfluorosulfonic acid ion exchange membrane between the anode cell and the cathode cell and fix it , And then put the two platinum plates connected with the positive and negative electrodes of the constant voltage power supply in the anode pool and the cathode pool respectively. The effective area of the platinum plate is 100×100mm 2 .
[0064] Preparation of sulfuric acid solution containing vanadyl sulfate: first add 600 mL of deionized water to the reactor, and then add 288 mL of concentrated sulfuric acid to the reactor under stirring conditions. When the temperature rises to 80 ℃, 75 grams of V 2 O 3 With 83.2 g V 2 O 5 The mix...
preparation example 3
[0068] This preparation example is used to illustrate the trivalent vanadium ion electrolyte and preparation method provided by the present invention.
[0069] Production of the electrolytic cell: use polyethylene with a weight-average molecular weight of 4 million to make the anode and cathode cells with specifications of 170×170×170mm, and place the perfluorosulfonic acid ion exchange membrane between the anode cell and the cathode cell and fix it , And then put the two platinum plates connected with the positive and negative electrodes of the constant voltage power supply in the anode pool and the cathode pool respectively. The effective area of the platinum plate is 100×100mm 2 .
[0070] Preparation of sulfuric acid solution containing vanadyl sulfate: first add 600 mL of deionized water to the reactor, and then add 269 mL of concentrated sulfuric acid to the reactor under stirring conditions. When the temperature rises to 80 ℃, 61.7 grams of V 2 O 3 With 74 g V 2 O 5 The mix...
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