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A kind of automatic preparation device and method of thermal battery diaphragm material

An automatic preparation and thermal battery technology, which is applied in the direction of battery components, circuits, electrical components, etc., can solve the problems that affect the mixing uniformity of binder and electrolyte, and cannot solve the problems of separator material efficiency and low efficiency, so as to achieve production efficiency Improvement, high degree of automation and high efficiency

Active Publication Date: 2022-05-24
GUIZHOU MEILING POWER SUPPLY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method, the efficiency of diaphragm material preparation is (18-25) h / kg, and the energy consumption of diaphragm material preparation is (80-100) kW / kg, which is low in efficiency and high in energy consumption.
In addition, during the ball milling process, the corundum ball will crush the MgO powder on the wall of the ball mill tank, causing the problem of sticking to the wall, which affects the mixing uniformity of the binder and the electrolyte.
[0010] Al 2 o 3 It is expected to solve the safety problem of thermal batteries for the binder, but its preparation method is basically the same as that proposed by Lu Ruisheng et al. The separator material is still prepared by mixing electrolyte and binder, melting and sintering, and ball milling after melting. Preparation, unable to solve the problems of low efficiency, high energy consumption and uneven mixing during the preparation of diaphragm materials

Method used

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  • A kind of automatic preparation device and method of thermal battery diaphragm material
  • A kind of automatic preparation device and method of thermal battery diaphragm material
  • A kind of automatic preparation device and method of thermal battery diaphragm material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Heat treatment of binder: MgO powder is sintered in a resistance furnace, the sintering temperature is 1000 °C, and the time is 4 hours. Then it is transferred into the adhesive holding cavity 26 through the transition chamber 14 .

[0056] (2) Electrolyte melting: transfer the mixed electrolyte LiCl-KCl to the electrolyte melting pool 11, and the heating temperature is 700°C.

[0057] (3) Preparation of diaphragm material: The device controls the electrolyte shower head 12 to spray the molten electrolyte on the MgO powder according to the weight ratio of electrolyte:magnesium oxide=30:70, and then the adhesive is lifted by the adhesive lifting mechanism 25. Lift up by 3mm, and then push the wetted electrolyte adhesive into the powder discharge port 23 by the powder scraping device 21 and the powder baffle 22 .

[0058] (4) Diaphragm material mixing: The diaphragm material mixing pot 31 is connected to the powder material discharge port 23 and can be heated, and th...

Embodiment 2

[0061] (1) Heat treatment of binder: MgO powder is sintered in a resistance furnace at a sintering temperature of 800°C and a time of 6h. Then it is transferred into the adhesive holding cavity 26 through the transition chamber 14 .

[0062] (2) Electrolyte melting: transfer the mixed electrolyte LiCl-LiBr-LiF into the electrolyte melting pool 11, and the heating temperature is 800°C.

[0063] (3) Preparation of diaphragm material: The device controls the electrolyte shower head 12 to spray the molten electrolyte on the MgO powder according to the weight ratio of electrolyte:magnesium oxide=40:60, and then the adhesive is lifted by the adhesive lifting mechanism 25. Lift up by 1mm, and then push the wetted electrolyte adhesive into the powder discharge port 23 by the powder scraping device 21 and the powder baffle 22 .

[0064] (4) Diaphragm material mixing: The diaphragm material mixing pot 31 is connected to the powder feeding port 23 and can be heated. The heating temperat...

Embodiment 3

[0067] (1) Heat treatment of binder: SiO 2 The powder was sintered in a resistance furnace at a sintering temperature of 1000°C for 6 hours. Then it is transferred into the adhesive holding cavity 26 through the transition chamber 14 .

[0068] (2) Electrolyte melting: transfer the mixed electrolyte LiCl-LiBr-LiF into the electrolyte melting pool 11, and the heating temperature is 800°C.

[0069] (3) Preparation of diaphragm material: The device controls the electrolyte shower head 12 to spray the molten electrolyte on SiO according to the weight ratio of electrolyte:silicon dioxide=30:70 2 Then, the adhesive is lifted up by 1 mm by the adhesive lifting mechanism 25 , and then the powder scraping device 21 and the powder baffle 22 push the wetted electrolyte adhesive into the powder discharge port 23 .

[0070] (4) Diaphragm material mixing: The diaphragm material mixing pot 31 is connected to the powder feeding port 23 and can be heated, and the heating temperature is 800°C...

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Abstract

The invention discloses an automatic preparation device and method for thermal battery diaphragm material, which adopts the method of directly mixing molten electrolyte with adhesive, greatly reducing working steps. The automatic preparation device includes four parts: an electrolyte spraying device, a diaphragm material forming device, a diaphragm material mixing device, and a diaphragm material granulating device. The electrolyte spraying device sprays the heated and melted electrolyte on the adhesive, and the diaphragm material forming device pushes the adhesive soaked in electrolyte to the diaphragm material mixing device, which mixes the diaphragm material evenly and keeps the high temperature to make the electrolyte Continue to mix with the binder evenly, and the diaphragm material granulation device crushes the diaphragm material into particles of suitable particle size, and obtains the finished product of the diaphragm material for storage. The invention has the characteristics of high efficiency, energy saving, and low water content in the preparation of diaphragm materials, and is especially suitable for mass production requirements of thermal batteries.

Description

technical field [0001] The invention belongs to the technical field of thermal batteries, in particular to an automatic preparation device and method for thermal battery separator materials. Background technique [0002] The thermal battery uses molten salt as the electrolyte and uses its own heat source to melt and activate the primary storage battery. It has the advantages of short activation time, wide use environment temperature, long storage period and maintenance-free, and is more and more widely used in weapon equipment systems. [0003] The separator material used in the thermal battery is made of electrolyte (E) and binder (B) mixed in a certain proportion and then fused at high temperature. Electrolytes are generally eutectic salts such as LiCl-KCl, LiCl-LiBr-LiF, LiCl-LiBr-LiF-KBr, etc. These halogen salts have high conductivity when molten, but very low conductivity at room temperature, especially suitable for high-power discharge and Requirements for long-term...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/403H01M6/36
CPCH01M6/36
Inventor 李海君陈祥华卢丫刘江涛万伟华赵洪楷王幸刘丹刘美美黄晓丽李进秦雪敏朱琳刘大川阳玲
Owner GUIZHOU MEILING POWER SUPPLY CO LTD