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Automatic preparation device and method of thermal battery diaphragm material

A technology for automatic preparation and heating of batteries, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of low efficiency, sticking to walls, high energy consumption, and achieve simple process flow, high degree of automation, and low energy consumption. Effect

Active Publication Date: 2021-03-19
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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  • Automatic preparation device and method of thermal battery diaphragm material
  • Automatic preparation device and method of thermal battery diaphragm material
  • Automatic preparation device and method of thermal battery diaphragm material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Binder heat treatment: Sinter the MgO powder in a resistance furnace at a temperature of 1000° C. for 4 hours. Then it is transferred into the adhesive holding chamber 26 through the transition chamber 14 .

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

[0057] (3) Diaphragm material preparation: the device controls the electrolyte spray head 12 to spray the molten electrolyte on the MgO powder according to the weight ratio electrolyte: magnesium oxide = 30:70, and then the adhesive is lifted by the adhesive jacking mechanism 25. Lift up by 3mm, and then the binder of the soaked electrolyte is pushed 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 docked with the powder material discharge port 23, and can be heated. The heating tempe...

Embodiment 2

[0061] (1) Binder heat treatment: Sinter the MgO powder in a resistance furnace at a temperature of 800°C for 6 hours. Then it is transferred into the adhesive holding chamber 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) Diaphragm material preparation: the device controls the electrolyte spray head 12 to spray the molten electrolyte on the MgO powder according to the weight ratio electrolyte: magnesium oxide = 40: 60, and then the adhesive is lifted by the adhesive jacking mechanism 25. Lift up by 1 mm, and then push the soaked electrolyte binder 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 docked with the powder material discharge port 23, and can be heated. The heating temperature is 800°...

Embodiment 3

[0067] (1) Adhesive heat treatment: SiO 2 The powder is sintered in a resistance furnace at a temperature of 1000°C for 6 hours. Then it is transferred into the adhesive holding chamber 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) Diaphragm material preparation: the device controls the electrolyte spray head 12 to spray the molten electrolyte on the MgO powder according to the weight ratio electrolyte: magnesium oxide = 30:70, and then the adhesive is lifted by the adhesive jacking mechanism 25. Lift up by 1 mm, and then push the soaked electrolyte binder into the powder discharge port 23 by the powder scraping device 21 and the powder baffle 22 .

[0070] (4) Membrane material mixing: the membrane material mixing pot 31 is docked with the powder material discharge port 23 and can be heated, and the heating temperat...

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Abstract

The invention discloses an automatic preparation device and method of a thermal battery diaphragm material, which adopt a mode of directly mixing molten electrolyte with an adhesive to greatly reducethe process steps. The automatic preparation device comprises 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 heated molten electrolyte on the adhesive, the diaphragm material forming device pushes the adhesive infiltrating the electrolyte to the diaphragm material mixing device, and the diaphragm material mixing device uniformly mixes diaphragm materials and keeps high temperature to enable the electrolyte and the adhesive to be continuously and uniformlymixed. And the diaphragm material granulating device crushes the diaphragm material into particles with proper particle sizes to obtain a finished product of the diaphragm material for storage. The device has the characteristics of high efficiency, energy conservation and low water content of the prepared diaphragm material, and is particularly suitable for the batch production requirement 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 diaphragm materials. 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] The diaphragm material used in the thermal battery is formed by mixing electrolyte (E) and binder (B) according to a certain ratio and then fusing at high temperature. The electrolyte is generally LiCl-KCl, LiCl-LiBr-LiF, LiCl-LiBr-LiF-KBr and other eutectic salts. These halogen salts have high conductance when molten, but very low conductance at room temperature, especially suitable for high-power discharge and L...

Claims

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Application Information

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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