Novel titanium-manganese single flow battery
A flow battery and single cell technology, applied in the field of new titanium-manganese single-flow batteries, can solve the problems of stack damage, positive blockage, hindering the development of titanium-manganese flow batteries, etc. The effect of promoting the application
Active Publication Date: 2021-04-02
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
[0004] As a low-cost, environmentally friendly new type of flow battery, titanium-manganese flow battery has gradually attracted the attention of researchers, but the disproportionation reaction of trivalent manganese ions at the positive electrode generates MnO 2 Deposits are likely to cause positive electrode blockage and stack damage. Generally, the generation of MnO is avoided by controlling the concentration of trivalent manganese ions. 2 deposits, but it is difficult to completely avoid the occurrence of failures, and can only use the single-electron transfer reaction from divalent manganese ions to trivalent manganese ions, which seriously hinders the development of titanium-manganese flow batteries
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Embodiment 1
[0034] 1. Electrolyte configuration:
[0035] The positive and negative electrolytes are the same, each configuration is 40ml, and the electrolyte contains 1mol·dm -3 manganese sulfate and 1mol dm -3 Titanyl Sulfate.
[0036] 2. Battery assembly:
[0037] The single cell is according to the positive end plate, the positive electrode (3×3cm 2 graphite felt), separator (Nafion211), negative electrode (3×3cm 2 Graphite felt), the order of the negative end plate is assembled sequentially;
[0038] Assemble the single cell with the circulating pump, the negative electrolyte storage tank, the negative electrolyte input pipeline and the negative electrolyte output pipeline; make the negative electrolyte storage tank pass through the negative electrolyte input pipeline and the negative electrolyte output tube The circuit is connected to the negative electrode, the circulation pump is set on the negative electrode electrolyte input pipeline, and the positive electrode electrolyte ...
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Abstract
The invention discloses a single flow battery. The battery comprises a titanium-manganese battery module, a circulating pump, a negative electrolyte storage tank, a negative electrolyte, a negative electrolyte input pipeline and a negative electrolyte output pipeline; the titanium-manganese battery module comprises a positive electrode, a diaphragm and a negative electrode; the redox couple of thenegative electrode is Ti<3+> / Ti<4+>, and the redox couple of the positive electrode is Mn<2+> / MnO2, so that the problem that the positive electrode is easily blocked due to precipitation of MnO2 in the positive electrode is solved, the battery cost is greatly reduced, popularization and application of the flow battery are facilitated, and the flow battery has the characteristics of long cycle life and simple structure and manufacturing process.
Description
technical field [0001] The invention belongs to the field of batteries, and in particular relates to a novel titanium-manganese single-fluid flow battery. Background technique [0002] With the development of the economy, the demand for energy is increasing day by day, and the environmental problems caused by the massive consumption of fossil energy are becoming more and more prominent. Large-scale utilization of renewable energy and the realization of energy diversification have become important strategies for energy security and sustainable development of countries around the world. However, the discontinuity and instability of renewable energy such as wind energy and solar energy make their direct utilization difficult. Therefore, using energy storage technology to achieve continuous supply of renewable energy becomes the key to solving the above problems. Flow batteries have become one of the most promising technologies in the large-scale energy storage market due to th...
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IPC IPC(8): H01M8/18
CPCH01M8/188Y02E60/50
Inventor 乔琳李海霞刘淑敏刘玉琴
Owner DALIAN MARITIME UNIVERSITY