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Preparation method of compact type solid-state electrolyte material

A solid electrolyte, dense technology, applied in the direction of solid electrolyte, non-aqueous electrolyte, hybrid capacitor electrolyte, etc., can solve the problems of low density, poor performance of electrolyte membrane materials, etc., to improve the compact performance, promote good connection, excellent performance Effect

Active Publication Date: 2018-07-06
陕西宸立崇电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the existing solid electrolyte material has low density, which leads to poor performance of the electrolyte membrane material, a method for preparing a dense solid electrolyte material is provided

Method used

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  • Preparation method of compact type solid-state electrolyte material

Examples

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example 1

[0018] In parts by weight, weigh 55 parts of deionized water, 3 parts of sodium dihydrogen phosphate, 6 parts of lithium nitrate and 6 parts of aluminum nitrate in a beaker, stir and mix and ultrasonically disperse for 10 minutes to obtain a dispersion and calculate Count, weigh 45 parts of dispersion liquid, 10 parts of 15% ethanol solution by mass fraction, 1 part of 5% nitric acid solution by mass fraction, 3 parts of tetrabutyl titanate and 6 parts of acetylacetone in Erlenmeyer flask, at 45 ℃ After heating in a water bath for 3 hours, let stand and cool to room temperature to obtain a gel solution, and vacuum freeze-dry to obtain a dried gel powder, place it in a muffle furnace at 450°C for calcination for 1 hour, stand to cool to room temperature, and grind and sieve to obtain a precursor Body powder; in parts by weight, weigh 45 parts of deionized water, 3 parts of polyvinyl alcohol, 2 parts of peach gum, 6 parts of 200 mesh expanded perlite powder and 25 parts of precur...

example 2

[0020] In parts by weight, weigh 57 parts of deionized water, 4 parts of sodium dihydrogen phosphate, 7 parts of lithium nitrate and 7 parts of aluminum nitrate in a beaker, stir and mix and ultrasonically disperse for 12 minutes to obtain a dispersion liquid and Count, weigh 47 parts of dispersion liquid, 12 parts of 15% ethanol solution by mass fraction, 2 parts of 5% nitric acid solution by mass fraction, 4 parts of tetrabutyl titanate and 7 parts of acetylacetone in Erlenmeyer flask. After heating in a water bath for 4 hours, let stand and cool to room temperature to obtain a gel solution, and vacuum freeze-dry to obtain a dried gel powder, place it in a muffle furnace at 475°C for calcination for 2 hours, stand to cool to room temperature, and grind and sieve to obtain a precursor Body powder; in parts by weight, weigh 47 parts of deionized water, 4 parts of polyvinyl alcohol, 2 parts of peach gum, 7 parts of 200 mesh expanded perlite powder and 27 parts of precursor powde...

example 3

[0022] In parts by weight, weigh 60 parts of deionized water, 5 parts of sodium dihydrogen phosphate, 8 parts of lithium nitrate and 8 parts of aluminum nitrate in a beaker, stir and mix and ultrasonically disperse for 15 minutes to obtain a dispersion liquid and Count, weigh 50 parts of dispersion liquid, 15 parts of 15% ethanol solution by mass fraction, 2 parts of 5% nitric acid solution by mass fraction, 5 parts of tetrabutyl titanate and 8 parts of acetylacetone in Erlenmeyer flask. After heating in a water bath for 5 hours, let stand and cool to room temperature to obtain a gel solution, and vacuum freeze-dry to obtain a dried gel powder, place it in a muffle furnace at 500°C for calcination for 2 hours, stand to cool to room temperature, and grind and sieve to obtain a precursor Body powder; in parts by weight, weigh 50 parts of deionized water, 5 parts of polyvinyl alcohol, 3 parts of peach gum, 8 parts of 200 mesh expanded perlite powder and 35 parts of precursor powde...

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Abstract

The invention relates to a preparation method of a compact type solid-state electrolyte material, and belongs to the technical field of an electrolyte material. The electrolyte material is prepared bytaking lithium nitrate and aluminium nitrate as the raw materials through sintering; in the sintering process, existence of an amorphous phase can be observed in the crystal boundary, and the gap holes in the crystal boundary are well filled with the generated amorphous phase, so that high joining between crystal particles is promoted, thereby greatly improving the compact degree of the solid-state electrolyte material, and obtaining the electrolyte material with high performance effectively; in addition, an expanded perlite material is coated with gel; and in a high-temperature carbonizationprocess, the expanded perlite suffers from volume expansion, so that the internal pore structure of the sintered material can be filled effectively, thereby effectively improving the compact performance of the solid-state electrolyte material, and obtaining the solid-state electrolyte material with excellent performance.

Description

technical field [0001] The invention relates to a preparation method of a dense solid electrolyte material, belonging to the technical field of electrolyte materials. Background technique [0002] The all-solid polymer electrolyte is only composed of polymer and lithium salt, does not contain any liquid, and is a solid solution with ion conductivity. Therefore, the all-solid polymer electrolyte is the real polymer solid electrolyte. Commonly used polymer matrices include polyether, aliphatic polyester, polyimine, and other linear polymers. In the polymer electrolyte, there is an interaction between the polymer chain segment and the lithium salt, and the migration of ions is the liquid-like mobility provided by the local relaxation motion of the polymer chain segment, and the ion coordination point in the polymer result of migration. Therefore, the amorphous part of the polymer is the ion-conducting part, which determines the electrochemical performance of the polymer elec...

Claims

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Application Information

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IPC IPC(8): H01M10/0562H01M10/0565H01G11/56
CPCH01G11/56H01M10/0562H01M10/0565H01M2300/0065Y02E60/10
Inventor 陈建峰蒋益
Owner 陕西宸立崇电子有限公司
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