Thermal battery composite ignition paper and preparation method thereof
A composite type, thermal battery technology, applied in firelighting, petroleum industry, delayed action cells, etc., can solve problems such as spontaneous combustion, lower product reliability, water pollution, etc., to improve safety and work efficiency, reduce contact time and reduce labor intensity
Inactive Publication Date: 2021-08-31
GUIZHOU MEILING POWER SUPPLY CO LTD
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Problems solved by technology
[0018] This method increases the linear burning velocity of the pilot paper by replacing barium chromate with lead dioxide. The operation is cumbersome, and the linear burning velocity of the pilot paper can be increased to 50-400cm / s, but the zirconium powder needs to be dried during the preparation process. , sieving, zirconium powder with particularly high activity is prone to spontaneous combustion during drying and sieving
And the igniter paper prepared by this method has a lower reaction energy barrier, so the thermal battery assembled with the igniter paper prepared by this method has the risk of spontaneous combustion when it is subjected to mechanical forces such as impact or large-scale vibration, resulting in the accidental activation of the thermal battery and thus Reduced product reliability
In addition, lead dioxide is easy to fly and generate dust during the drying and sieving process. Lead-containing dust has a great impact on the natural environment and the health of operators. Frequent use has hidden dangers of heavy metal poisoning or water pollution.
Method used
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preparation example Construction
[0047] Each embodiment prepares materials according to Table 1 respectively, and then prepares thermal battery composite ignition paper in conjunction with the following preparation methods, including the following steps:
[0048] Step 1. Soak the loose asbestos paper in distilled water for 12 hours, stir and crush it, add zirconium powder, and mix to obtain a zirconium powder pulp solution;
[0049] Step 2, barium chloride and potassium chromate add water 200ml to dissolve respectively, potassium perchlorate adds water 50ml to dissolve, obtain barium chloride solution, potassium chromate solution and potassium perchlorate suspension respectively;
[0050]Step 3, mix the barium chloride solution and the potassium chromate solution and stir evenly for about 360s, then add the zirconium powder pulp solution and stir evenly for about 360s, finally add the potassium perchlorate suspension and stir evenly to obtain the mixture, Stir for about 120s, let the mixture stand, settle, an...
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Abstract
The invention discloses a preparation method of thermal battery composite ignition paper, and belongs to the technical field of thermal battery preparation. The composite ignition paper is of a double-layer structure and is divided into an ignition paper layer and a combustion-supporting layer which are bonded together, the ignition paper layer is zirconium-barium chromate-potassium perchlorate type ignition paper, and the combustion-supporting layer is an aluminum foil, an aluminum oxide sheet, a mica sheet or kraft paper and the like. The composite ignition paper provided by the invention has the characteristic of greatly improving the burning speed of the ignition paper line, and is particularly suitable for thermal batteries with short activation time requirements. The method provided by the invention has the characteristic of simplicity and convenience in operation, and is suitable for the requirement of short activation time of the thermal battery.
Description
technical field [0001] The invention belongs to the related technical field of ignition paper in a thermal battery activation system, and in particular relates to a thermal battery composite ignition paper and a preparation method thereof. Background technique [0002] A thermal battery is a primary reserve battery that uses molten salt as an electrolyte, which is activated by melting it with its own heat source. It has the advantages of short activation time, wide operating environment temperature, long storage period, and maintenance-free, and is more and more widely used in weapon equipment systems. [0003] When the thermal battery is working, an external electrical signal or mechanical force is used to ignite the igniter inside the battery, and the fire source of the igniter is guided to the heating plate inside the battery through the igniter paper, so that the single battery reaches its working temperature, and the normal temperature is non-conductive. The solid elec...
Claims
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IPC IPC(8): C10L11/06C10L11/04H01M6/30
CPCC10L11/06C10L11/04H01M6/30
Inventor 李海君陈祥华万伟华卢崇庆赵洪楷卢丫刘丹刘美美刘宏黄晓丽阳玲杨冬丽
Owner GUIZHOU MEILING POWER SUPPLY CO LTD