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Ship power supply device comprising iron flow cell

A technology of ship power supply and flow battery, applied in battery electrodes, fuel cells, regenerative fuel cells, etc., can solve the problems of low energy density and cost, cost reduction of all-vanadium redox flow battery, and difficult recovery of vanadium electrolyte, etc. Achieve the effects of eliminating burning, solving temporary power failure problems, and low battery cost

Inactive Publication Date: 2019-09-06
SHANGHAI ELECTRICGROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent CN207956016U discloses a nickel-metal hydride battery electric propulsion ship, which uses nickel-metal hydride batteries as the power of the ship. Although the nickel-hydrogen battery has the advantage of high current operation, its own energy density and cost do not have advantages.
However, due to the recent ban on the import of vanadium waste and the new steel standards, the raw material prices for the production of all-vanadium redox flow battery electrolytes have risen, and the stabilization of raw material prices requires a process.
Therefore, there is insufficient space for reducing the cost of all-vanadium redox flow batteries
In addition, although all-vanadium redox flow batteries have higher safety than lithium-ion batteries, when they are used for driving power of ships, there is still the risk of difficult recovery of vanadium electrolyte leaks after ship accidents, which is detrimental to the water body where the ship is located.
[0009] But at present, there is no report on the application of iron liquid flow battery as ship power battery, backup power supply, etc.

Method used

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  • Ship power supply device comprising iron flow cell
  • Ship power supply device comprising iron flow cell
  • Ship power supply device comprising iron flow cell

Examples

Experimental program
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Effect test

Embodiment 1

[0047] This embodiment relates to a preferred form of iron flow battery.

[0048] Such as image 3 As shown, the iron liquid flow battery 3 described in this embodiment includes end plates 31 on both sides, an electrode frame 33 is arranged on the end plate 31 on one side, and a negative electrode 32 is arranged inside the electrode frame 33. From the negative electrode A separator 34 ; a positive electrode 35 ; a bipolar plate 36 ; and a positive current collector 37 are sequentially arranged between the electrode 32 and the other end plate 31 . The installation forms and liquid flow channels of the above-mentioned components all adopt conventional installation methods in the field.

[0049] In the present embodiment, the positive electrode 35 adopts graphene, the negative electrode 32 adopts a composite material prepared from titanium-plated steel plate and graphene, and the separator 34 adopts a polypropylene microporous membrane; the active material in the electrolyte on ...

Embodiment 2

[0055] This embodiment relates to a preferred form of iron liquid flow battery, the structure of which is the same as that of the iron liquid flow battery in Example 1, and the materials and active substances used are different, as follows:

[0056] In the present embodiment, the positive electrode 35 adopts carbon nanotubes, the negative electrode 32 adopts a steel strip containing a lead oxide layer, and the separator 34 adopts a cation exchange membrane; the active material in the electrolyte on the positive side is Fe 2 (SO 4 ) 3 and FeCl 3 The mixture, and add the anion cyanide with complexing effect to improve the ionic conductivity of the electrolyte Na 2 SO 4 , a sodium acetate buffer to maintain a stable pH value of the positive electrolyte; the active substance in the negative electrolyte is FeSO 4 and FeCl 2 The mixture, and added antioxidant potassium monoborohydride, sodium citrate to improve the uniformity of the negative electrode electrolyte in the deposit...

Embodiment 3

[0058] This embodiment is a ship power supply device containing the iron liquid flow battery in embodiment 1 or embodiment 2.

[0059] Such as figure 1 As shown, in this embodiment, the all-iron liquid flow battery system is equipped with an electrolyte storage tank for temporary power supply when the ship is powered off. The specific plan is: the first positive electrode liquid storage tank 4 and the first negative electrode liquid storage tank 5 can be placed at a convenient position on the upper deck of the ship, respectively containing the positive electrode electrolyte and the negative electrode electrolyte, and the positive electrode active material batching storage tanks are respectively installed next to the corresponding liquid storage tanks 1 and negative electrode active material batching storage tank 2, respectively storing positive electrode active material and negative electrode active material batches in charged state. When needed, the active substance will be ...

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Abstract

The invention provides a ship power supply device comprising an iron flow cell. The ship power supply device is provided with a positive active material ingredient storage tank, a negative active material ingredient storage tank, a positive electrode liquid storage tank and a negative electrode liquid storage tank in a matched mode; the positive electrode liquid storage tank communicates with a positive electrode reaction area of the iron flow cell through a liquid guide tube; and the negative electrode liquid storage tank communicates with a negative electrode reaction area of the iron flow cell through a liquid guide tube. The ship power supply device comprising the iron flow cell can serve as a ship short-distance driving force close to a land area, can also serve as a standby power supply in an offshore region after a ship reaches a port, and provides basic power of illumination, life and related equipment operation and maintenance for the ship; the atmospheric pollution and the noise pollution caused by the fact that the ship uses power supply of fuel oil in the area close to the land and the coast can be effectively avoided; and the ship power supply device is prepared from an edible element, namely, the iron element as a raw material, so that the ship power supply device has high safety performance, and any environmental pollution to the coastal area reached by the shipis not caused even if the ship has an accident to cause electrolyte leakage.

Description

technical field [0001] The invention relates to the technical field of marine batteries, in particular to a marine power supply device including an iron liquid flow battery. Background technique [0002] Shipping is one of the most important modes of transportation for human beings and the main mode of transportation for bulk goods transnational transactions. While it shortens time and space and enables people to benefit from convenience and speed, it also brings a series of problems, for example, it takes a lot of energy to drive ships for long distances. Statistics from the Ministry of Transport in 2015 show that the air pollution caused by fuel oil from ships ranks third after motor vehicle exhaust and industrial emissions. However, in my country, the fuel oil standards for ships along the coast of the mainland are relatively low, and most ships still use low-quality diesel oil or heavy oil as fuel. However, if a ship powered by ordinary diesel with a sulfur content of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/18H01M4/90
CPCH01M8/188H01M4/9016H01M4/9091H01M2250/20Y02E60/50
Inventor 杨霖霖苏秀丽薛维恒
Owner SHANGHAI ELECTRICGROUP CORP
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