Filling method of solid electrolyte in double-pass AAO template

A technology of solid electrolyte and filling method, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, circuits, etc.

Active Publication Date: 2020-10-02
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Our research group also proposed several methods to provide filling gaps in the through-holes of AAO templates, but no method has been obtained before that can effectively control the specific size of the gaps as required

Method used

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  • Filling method of solid electrolyte in double-pass AAO template

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Embodiment

[0025] A method for filling solid electrolyte in a double-pass AAO template, comprising the following steps:

[0026] Step 1. Select a suitable double-pass V-type AAO template as the skeleton of the solid composite electrolyte. The V-type AAO template is a double-pass AAO template with a tapered channel and a narrow opening at the upper end with a diameter of D X , lower end wide opening aperture D d , where D d >D X ; The lower wide opening of the V-shaped AAO template has an aperture of 400 nm, the upper narrow opening has an aperture of 40 nm, and a pore depth of 500 nm.

[0027] Step 2, obtain the SEM topography map of the double-pass V-shaped AAO template channel by SEM, and directly obtain the relationship between the pore diameter D(y) and the pore depth h(x) and the specific pore depth value h according to the SEM topography map T Corresponding aperture value D T , as shown in the table below, basically satisfy the relationship of D(y)=40+0.72h(x).

[0028] ...

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Abstract

The invention provides a filling method of a solid electrolyte in a double-pass AAO template. The method can effectively control the specific size of a gap as required, and specifically comprises thefollowing steps: measuring and obtaining the relationship between the pore diameter D (y) and the pore depth h (x), obtaining the pore diameter value DT at the pore depth according to the specific pore depth value hT, preparing solid electrolyte particles, and controlling the size of the solid electrolyte particles to enable the particle size DG to be equal to DT; and filling the solid electrolyteprecursor turbid liquid into pore channels of the V-shaped AAO template, and carrying out curing and drying.

Description

technical field [0001] The invention relates to a method for filling a solid electrolyte in a double-pass AAO template, in particular to a method for preparing a solid electrolyte with a fixed gap size in a double-pass AAO template. Background technique [0002] In recent years, solid electrolytes based on AAO templates have been widely used because of their strong structural stability and inhibition of lithium dendrites, but filling the through holes of AAO templates with solid electrolytes has always been a difficult point in the industry. In addition, a continuous conductive LATP solid electrolyte with an air gap based on the AAO template can avoid side reactions caused by the contact between LATP and the negative lithium metal and ensure the transition transport of lithium ions, which has great industrial potential. Our research group also proposed several methods to provide filling gaps in the through-holes of AAO templates, but no method has been obtained before that c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0562H01M10/058H01M10/052B82Y30/00B82Y40/00
CPCH01M10/0562H01M10/058H01M10/052B82Y30/00B82Y40/00Y02E60/10Y02P70/50
Inventor 白莹高镏飞赵慧玲郁彩艳尹延锋
Owner HENAN UNIVERSITY
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