All iron oxide flow battery system
A liquid flow battery, iron oxidation technology, applied in fuel cells, regenerative fuel cells, circuits, etc., can solve the problems of poor performance and high overall cost, and achieve high discharge power, reasonable and available working voltage, and high specific power Effect
Active Publication Date: 2022-05-20
张明刚
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Problems solved by technology
[0004] The energy density of the hybrid flow battery is limited by the positive half-cell electrolyte. Although the overall energy density has been greatly improved, it does not perform well compared to the current relatively mature battery technology.
The reaction substances, diaphragm and other auxiliary devices of the flow battery make the overall cost still relatively high
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] figure 1 It is a structural schematic diagram of an embodiment applied to a power battery according to the present invention. Such as figure 1 As shown, the all-iron oxide flow battery system includes: 1. reaction chamber, 2. iron ion electrolyte, 3. iron electrode, 4. flow electrode, 5. pressure relief valve, 6. liquid injection pipe, 7. Liquid injection valve, 8. Liquid suction pipe, 9. Liquid pump, 10. Oxidation chamber, 11. Liquid storage chamber,...
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The invention discloses an all-iron oxidation liquid flow battery system in the technical field of batteries, comprising: a reaction chamber, an oxidation chamber, a pipeline, an iron electrode, a liquid flow electrode, an iron ion electrolyte, and an oxidizing substance. The iron electrode and the liquid flow electrode are located in the reaction chamber. The reaction chamber and the oxidation chamber form a circulation system through the pipeline. The iron ion electrolyte in the reaction chamber reacts with the iron electrode on the liquid flow electrode to release electric energy, and the iron ion on the liquid flow electrode It is reduced to ferrous ions, and the iron electrode loses electrons and becomes ferrous ions to enter the electrolyte. The electrolyte enters the oxidation chamber to react with oxidizing substances, and the oxidized electrolyte circulates into the reaction chamber. The invention realizes the regeneration of the iron ion electrolyte through the oxidation of the oxidation chamber, reduces the consumption of the electrolyte of the positive half-cell of the mixed flow battery, and realizes the improvement of the energy density of the system.
Description
technical field [0001] The invention belongs to the technical field of batteries, and relates to a hybrid flow battery system, in particular to an all-iron oxide flow battery system. Background technique [0002] A flow battery is a battery technology in which the active material exists in a liquid electrolyte. The electrolyte is placed outside the stack, driven by the circulating pump, flows through the stack, and undergoes an electrochemical reaction to realize the conversion of chemical energy and electrical energy. The rated power and rated energy of the flow battery are independent, the power depends on the stack, and the energy depends on the electrolyte. The amount of electrolyte can be increased at will to achieve the purpose of increasing battery capacity. Can deep discharge without damaging the battery, can be 100% discharged. The structure of the battery is simple, the material is cheap, and the cost of replacement and maintenance is low. The electrolyte solut...
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IPC IPC(8): H01M8/04186H01M8/18
CPCH01M8/184H01M8/04186Y02E60/50
Inventor 张明刚
Owner 张明刚