Hybrid power supply employing fuel cell and storage battery and thermal management method

A technology of fuel cell and hybrid power supply, which is applied in the direction of fuel cell half-cell and secondary battery-type half-cell, fuel cell heat exchange, fuel cell, etc. It can solve the problems of complex system and poor management effect, and achieve Simplifies system composition, improves low-temperature start-up characteristics, and saves space

Active Publication Date: 2018-04-03
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a thermal management method for a fuel cell and storage battery hybrid system to solve the problems of complex systems and poor management effects that exist when the fuel cell and storage battery cooling liquid circulation systems are relatively independent

Method used

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  • Hybrid power supply employing fuel cell and storage battery and thermal management method
  • Hybrid power supply employing fuel cell and storage battery and thermal management method
  • Hybrid power supply employing fuel cell and storage battery and thermal management method

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Embodiment 1

[0048] The invention provides a hybrid power supply of a fuel cell and a storage battery and a thermal management method. The hybrid power supply includes a fuel cell, a storage battery, and a heating / cooling module, wherein the heating / cooling module is composed of a pump, a radiator, a heater, etc., and heats The heater can be electric heater, gas heater or oil heater.

[0049] Fuel cells are fuel cells based on different fuels such as hydrogen fuel cells, direct methanol fuel cells, and metal-air fuel cells.

[0050] The storage battery is a rechargeable battery such as a lithium-ion battery, a lead-acid battery, a nickel-metal hydride battery, or a nickel-cadmium battery.

[0051] When the ambient temperature is extremely low (below 40°C) and neither the fuel cell nor the battery can work, the fuel is directly supplied to the gas heater or fuel oil heater to rapidly heat up the coolant, and the coolant circulation system simultaneously realizes the temperature rise of the ...

Embodiment 2

[0061] as attached figure 2 As shown, the hybrid power system includes a metal-air fuel cell and a battery 9 . The metal-air fuel cell and the accumulator 9 are designed as a whole, wherein the accumulator 9 is located in the central area, and the two can be disassembled.

[0062] The central area of ​​the metal-air fuel cell is a structure with accommodating space, specifically a hollow multi-layer structure. From the outside to the inside, there are air electrodes 13, diaphragms 12 and metal electrodes 10 in sequence, and the electrolyte 11 fills the entire inner space. The accumulator 9 is located in the containing space of the metal-air fuel cell, surrounded by the electrolyte 11 of the metal-air fuel cell. The cover of the metal-air fuel cell can be opened, and the metal electrode 10 and the storage battery 9 can be replaced by opening the cover above, so that metal plates are added after the metal is consumed in the metal-air fuel cell to maintain its continuous discha...

Embodiment 3

[0068] as attached figure 1 As shown, the hybrid power system includes a fuel cell 17 , a cable 16 , a heating device 15 and a battery 14 .

[0069] The outer surface of the storage battery 14 is covered with a heating device 15 such as a resistance wire or a heating film. When the ambient temperature is low (-30°C), since the metal-air fuel cell has a good low-temperature self-starting capability, the fuel cell 17 starts to generate electricity first. Utilizing the electric energy output by it, the battery 14 is heated through the heating device 15, and the temperature of the battery is raised, which can solve the problem of poor low-temperature characteristics of the battery; the cable 16 is connected to the fuel cell 17 and the heating device 15, and the heating device 15 is powered by the fuel cell, and the The storage battery 14 is heated, thereby avoiding the problem that the storage battery 14 cannot be started normally when it is replaced at an extremely low temperatur...

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PUM

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Abstract

The invention provides a hybrid power supply employing a fuel cell and a storage battery and a thermal management method. The power supply comprises the fuel cell, the storage battery and a heating / cooling module, wherein the heating / cooling module is used for heating or cooling the fuel cell and / or the storage battery. According to the power supply, a thermal management system of the metal air fuel cell and a thermal management system of the storage battery are mixed and the advantages of the metal air fuel cell and the storage battery are utilized, so that a power supply system with high power density and high energy density can be obtained; and the storage battery can be heated by using a relatively good low-temperature starting characteristic of the metal air fuel cell, so that the problem that the storage battery cannot work in a low-temperature environment can be solved.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a hybrid power supply and thermal management method of fuel cells and storage batteries. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, human activities have an increasing demand for electric energy, and power supplies are widely used in various products. Existing power systems include primary batteries, storage batteries, fuel cells and generator sets, among which batteries and fuel cells are in increasing market demand driven by the demand for energy conservation and environmental protection. They are widely used in portable power supplies, new energy vehicles, military power supplies, and energy storage There are urgent needs in other fields. However, both existing storage batteries and fuel cells have certain defects and deficiencies. For example, storage batteries such as lead-acid batteries, nickel-met...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/615H01M8/04007H01M8/04029H01M12/08H01M10/42
CPCH01M8/04007H01M8/04029H01M10/42H01M10/613H01M10/615H01M12/08Y02E60/10Y02E60/50
Inventor 马泽李勇王刚
Owner BEIJING MECHANICAL EQUIP INST
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