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High-temperature fusant battery apparatus and preparation process thereof

A battery device and high-temperature melt technology, applied in secondary batteries, battery pack parts, battery boxes/jackets, etc., can solve problems such as corrosion of high-temperature insulating and sealed batteries, and achieve a reduction in production cycle, good performance, and cost reduction. Effect

Active Publication Date: 2017-05-10
CHINA XD ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above problems, the purpose of the present invention is to provide a high-temperature melt battery device and its preparation process, which are used to solve the problems of high-temperature insulation and sealing and battery corrosion in existing liquid metal batteries.

Method used

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  • High-temperature fusant battery apparatus and preparation process thereof
  • High-temperature fusant battery apparatus and preparation process thereof
  • High-temperature fusant battery apparatus and preparation process thereof

Examples

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Embodiment 3

[0063] The preparation process of the liquid metal battery adopted in embodiment 3 is as follows:

[0064] 1) Put Sb pellets into a mold and heat to melt. The heating process is as follows: 5°C / min to 800°C, heat preservation for 10h, and then naturally cool to room temperature. The whole process is carried out in an absolute vacuum or high-purity argon environment less than 0.1Pa.

[0065] 2) the mixed MgCl 2 , NaCl and KCl electrolyte powders were put into a mold and heated and melted. The heating process was as follows: the temperature was raised to 450°C at a rate of 1°C / min, kept for 15 hours, and then naturally cooled to room temperature to obtain the battery electrolyte material. The whole process is carried out in an absolute vacuum or high-purity argon environment less than 0.1Pa.

[0066] 3) Put the metal Mg into the mold and heat and melt it. The heating process is as follows: the temperature is raised to 800° C. at 5° C. / min, and the temperature is kept for 3 to ...

Embodiment 6

[0073] The preparation process of the liquid metal battery adopted in embodiment 6 is as follows:

[0074] 1) Put the metal Te into the mold and heat and melt it. The heating process is as follows: the temperature is raised to 800°C at 5°C / min, kept for 20 hours, and then naturally cooled to room temperature. The whole process is carried out in an absolute vacuum of less than 0.1Pa or in high-purity argon.

[0075] 2) Put the mixed NaF, NaCl and NaI electrolyte powders into a mold and heat and melt them. The heating process is to raise the temperature to 600°C at 1°C / min, keep it warm for 20h, and then cool it down to room temperature naturally. The whole process is carried out in an absolute vacuum or high-purity argon environment less than 0.1Pa.

[0076] 3) Put the metal Na into the mold and heat and melt it. The heating process is as follows: the temperature is raised to 400° C. at 5° C. / min, and the temperature is kept for 3 to 5 hours. The anode current collector was s...

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Abstract

The invention discloses a high-temperature fusant battery apparatus and a preparation process thereof. The high-temperature fusant battery apparatus comprises a ceramic sealing-in negative electrode column, a stainless steel negative electrode current collector, a stainless steel positive electrode cover plate and a stainless steel positive electrode shell, wherein the ceramic sealing-in negative electrode column is connected with the positive electrode cover plate to form a battery top cover; an electrode core is connected with the negative electrode current collector through screw threads to form a battery negative electrode; the battery top cover is tightly connected with the positive electrode shell to form a sealed battery cavity; a compact oxide insulating thin film and a carbide conductive thin film are formed on the inner wall and the bottom surface of the positive electrode shell through physical film-coating respectively; the ceramic sealing-in negative electrode column consists of the electrode core, a stainless steel coating layer, an insulating ceramic sleeve, and an upper transitional ring and a lower transitional ring, wherein the lower transitional ring is tightly welded with the battery shell to form the sealed battery cavity; and the lower end of the electrode core is connected with the negative electrode current collector to form the battery negative electrode. By adoption of the high-temperature fusant battery apparatus, problems existing in corrosion resistance and sealing of the battery at the high-temperature environment are solved; and meanwhile, the long-term cycling stability and working life of the battery are improved and prolonged.

Description

technical field [0001] The invention belongs to the field of electrochemical energy storage batteries, and in particular relates to a high-temperature melt battery device and a preparation process thereof. Background technique [0002] At present, my country is entering a critical period of deepening reform of the energy system, and the development strategy for building a global energy Internet is becoming increasingly clear. In the future, the Global Energy Internet will be an extensive integration of smart grids, UHV grids, and clean energy, which will require more new energy storage devices. Power flow control, distributed grids, and micro-grids will be widely used, and energy storage technologies will be A key link in coordinating these applications. Currently, commonly used grid-level energy storage technologies include pumped hydro storage, compressed air energy storage, supercapacitor energy storage, superconducting energy storage, flywheel energy storage, and variou...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M2/30H01M10/39H01M10/38
CPCH01M10/38H01M10/399H01M50/116H01M50/543Y02E60/10Y02P70/50
Inventor 彭勃张坤郭姣姣王玉平李侠
Owner CHINA XD ELECTRIC CO LTD
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