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Compact liquid metal battery and assembly method thereof

A liquid metal battery, compact technology, used in secondary batteries, battery pack parts, battery boxes/jackets, etc., can solve the problems of high cost, low product yield, complex battery processing technology, etc., to prolong the service life , The effect of compressing the space volume and the battery assembly process is simple

Active Publication Date: 2017-11-24
CHINA XD ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned design requires extremely high processing precision of each socketed part, and the socketing process needs to be carried out under extreme temperature conditions (high temperature 120-1200°C or low temperature -20--273°C), resulting in complicated battery processing technology and high cost. Too high, low product yield

Method used

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  • Compact liquid metal battery and assembly method thereof
  • Compact liquid metal battery and assembly method thereof
  • Compact liquid metal battery and assembly method thereof

Examples

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preparation example Construction

[0049] 1) Preparation of negative electrode material 13 . Put the negative electrode material 13 into a container, heat and melt it, wait for the negative electrode material 13 and the negative electrode current collector 8 to keep warm for a period of time and form good wetting, and then cool to room temperature. Specifically, the heating process is to raise the temperature to 300-800° C. at a rate of 1-5° C. / min, keep the temperature for 3-5 hours, and then cool down naturally to room temperature. When using the negative electrode current collector 8 of solid stainless steel round block, place the negative electrode current collector 8 in the negative electrode material 13 for soaking, stop heating after the negative electrode current collector 8 is fully wetted by the negative electrode material 13 and let it cool down to room temperature naturally. When the negative electrode current collector 8 of porous metal foam is used, the negative electrode current collector 8 is im...

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Abstract

The invention provides a compact liquid metal battery and an assembly method thereof. The battery includes a negative column, a high temperature sealing device, a negative current collector, a battery top cover, a battery shell, a battery bottom cover, a negative material, an electrolyte material and a positive material. The battery top cover, the battery shell and the battery bottom cover are in seal connection and form a sealed cavity. The negative material, the electrolyte material and the positive material are all arranged in the sealed cavity. The negative column passes through the battery top cover, and is in seal connection with the battery top cover through the high temperature sealing device. One negative column end stretching into the sealed cavity is connected to the negative current collector. The negative column body stretching into the sealed cavity is equipped with a round table. The high temperature sealing device includes a sealing gasket, a sealing gum layer, an insulation spacer and a fastening nut that are sleeved on the negative column. The sealing gasket is compressed between the round table and the battery top cover, the sealing gum layer seals and fills the space between the battery top cover and the negative column, and the insulation spacer is compressed on the battery top cover through the fastening nut.

Description

technical field [0001] The invention relates to the technical field of energy storage batteries, in particular to a compact liquid metal battery and an assembly method thereof. Background technique [0002] Liquid metal battery is a new type of energy storage battery. As the name implies, the battery works in a high-temperature environment (300-700°C) to melt its internal materials into a liquid state. The negative electrode of the liquid metal battery is usually an alkali metal or alkaline earth metal, the electrolyte is a mixed halide of the negative metal, and the positive electrode is a simple substance or alloy of lead, tin, bismuth, and antimony. When the battery is working, the molten negative electrode, electrolyte and positive electrode materials are divided into three layers from top to bottom due to their density difference and mutual immiscibility. When discharging, the negative electrode metal releases electrons to the external circuit, and its ions pass throu...

Claims

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Application Information

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IPC IPC(8): H01M10/39H01M2/08H01M10/38H01M50/147H01M50/169H01M50/184H01M50/186H01M50/188H01M50/198
CPCH01M10/38H01M10/399H01M50/183Y02E60/10Y02P70/50
Inventor 彭勃王康丽郭姣姣张坤蒋凯王玉平李侠
Owner CHINA XD ELECTRIC CO LTD
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