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A metal/air battery system

An air battery and air battery stack technology, applied in fuel cells, fuel cell additives, circuits, etc., can solve the problems of insufficient heat dissipation, the volume occupied by the main circuit, and the branch circuit cannot be too thin, so as to improve the anode utilization rate, The effect of improving flow consistency and increasing discharge capacity

Active Publication Date: 2021-09-07
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a certain range for reducing the flow rate. If the flow rate is too low, the heat dissipation cannot meet the requirements; and there are certain limitations in increasing the diameter ratio of the main pipeline and the branch pipeline. The branch path should not be too thin; on the other hand, the larger the main path, the more volume it will occupy

Method used

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  • A metal/air battery system
  • A metal/air battery system
  • A metal/air battery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, a coaxial impeller is added in the liquid injection main channel, the impeller speed is proportional to the flow rate entering the single cell, the temperature in the single cell is detected by the temperature sensor, and is fed back to the electronic control room at the same time, the electronic control part will detect the temperature The signal is associated with voltage or current, and the voltage signal or current signal is output to control the adjustable speed motor to drive the impeller shaft to rotate at a corresponding speed, thereby controlling the flow in the battery. The main liquid injection port is injected according to the liquid injection volume of 10L / min, such as figure 1 As shown, the measured flow value in the single cell is as follows Image 6 shown.

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Abstract

The present invention provides a metal / air battery system, which includes a metal / air battery pack, a liquid pump, a heat exchanger and a liquid storage unit; the metal / air battery pack includes N cells connected in series, and the N is an integer greater than or equal to 2; the single cell includes a single cell shell, and the adjacent single cell shells have a main liquid injection channel, a main drainage channel and an air flow channel; the main liquid injection channel is A flow balancing unit is provided in the channel, and is externally connected to a motor. The movement of the flow balancing unit is controlled by the motor to achieve a consistent flow of electrolyte. The invention has highly consistent electrolyte flow that effectively controls the performance of the single cell (voltage, temperature, etc.), improves the discharge capacity of the system, improves the anode utilization rate, and effectively extends the service life of the cathode in actual working conditions; the flow balancing unit is built into the main flow of liquid injection In the channel, the flow consistency can be reasonably improved without increasing the size of the main channel, reducing the system volume and improving the system specific energy.

Description

technical field [0001] The invention relates to a metal / air battery system, in particular to a metal / air battery system with high consistency. Background technique [0002] A metal / air battery is an electrochemical reaction device that uses metal (such as magnesium, aluminum, zinc, etc.) as the anode fuel, oxygen in the air as the oxidant, and lye as the electrolyte solution. my country's magnesium, aluminum, zinc and other metals are rich in reserves and low in price, so metal / air batteries have broad application prospects in many fields of mobile power sources such as communication power supplies, field emergency power supplies, lighting power supplies, and reserve power supplies. [0003] Since the working voltage of metal / air battery cells is only 1-1.5V, when encountering electrical equipment with higher rated voltage requirements, it is often necessary to connect multiple metal / air cells in series to obtain higher voltage. At the same time, due to the chemical reactio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/06H01M8/04276H01M8/04701H01M8/04029
CPCH01M8/04029H01M8/04283H01M8/04708H01M12/06Y02E60/50
Inventor 王二东刘敏孙公权
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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