Technique for shortening activation time of thermal batteries

A process method and technology of activation time, applied in the direction of primary battery use/maintenance, primary battery to battery grouping, delay action cells, etc. The effect of time and craftsmanship is simple

Inactive Publication Date: 2016-04-27
SHANGHAI INST OF SPACE POWER SOURCES
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The activation time of the battery is related to the ambient temperature before activation, the load current during activation, the burning rate of the ignition strip, the burning rate of the heating plate, the diameter of the single battery, and the design of the calorific value, but these conditions are generally the same as the use of thermal batteries. The requirements are related to the design scheme and cannot be changed casually, so in order to further shorten the activation time of the battery, other design measures must be taken

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  • Technique for shortening activation time of thermal batteries
  • Technique for shortening activation time of thermal batteries
  • Technique for shortening activation time of thermal batteries

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Embodiment Construction

[0014] The unit battery provided by the embodiment of the present invention has a diameter of 68mm, a total height of 95mm, a working load of 16A, and a low temperature working temperature of -45°C. The temperature is low, in order to ensure that the activation time of the battery meets the requirements, it is necessary to carry out the distribution design of the ignition bars in the stack according to the method of the present invention; figure 1 , Figure 2(a) and Figure 2(b) As stated above, the present invention provides a method for shortening the activation time of a thermal battery. The thermal battery is a stack composed of a plurality of single cells connected in series and in parallel. The thermal battery includes an electric ignition head 1, an ignition strip 2, a heating substance 3. The method includes the following steps:

[0015] (1) The electric ignition head 1 is detonated by means of electric activation, and the ignition strip 2 is directly burned after th...

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Abstract

The invention discloses a technique for shortening activation time of thermal batteries. An ignition strip on the periphery of a galvanic pile is turned upwards to the lower part of a mesopore asbestos pad; the ignition strip is directly burnt after an electric igniter is detonated; and heating substances in each single battery are ignited through the ignition strip from top to bottom, so that the thermal batteries are activated. According to the technique, traditional activation processes of detonating the electric igniter, igniting a heating plate, burning the ignition strip and finally igniting each single battery from top to bottom are changed into the processes of directly burning the ignition strip after detonating the electric igniter and then igniting each single battery from top to bottom, so that the activation time can be shortened by about 0.1-0.2 second; and the technique is simple in process, does not generate a redundant substance, and is of great significance in improvement of the activation time.

Description

technical field [0001] The invention belongs to the technical field of thermal batteries, and in particular relates to a process for shortening the activation time of thermal batteries. Background technique [0002] The thermal battery is a kind of thermally activated reserve battery that uses the heating system of the battery itself to heat and melt the non-conductive solid-state salt electrolyte into an ionic conductor and enter the working state. The internal electrolyte of the thermal battery is a eutectic melt composed of two or more inorganic salts. At room temperature, the electrolyte is a non-conductive solid; when in use, the electric ignition head inside the battery is ignited by an external current, thereby igniting the heating inside the battery. materials, the internal temperature of the battery rises rapidly, causing the molten salt electrolyte to melt and conduct electricity, activate the battery, and output electricity. The use of solid salt electrolytes is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/36H01M6/42H01M6/50
CPCH01M6/36H01M6/42H01M6/50
Inventor 袁光明汤胜高文秀于金玉郑侠强杉杉越云博刘波
Owner SHANGHAI INST OF SPACE POWER SOURCES
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