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Lithium carbon boron oxide solid electrolyte material and battery containing planar triangular groups

A solid electrolyte, triangular-based technology, applied in the field of materials to solve safety problems and low electronic conductivity

Active Publication Date: 2017-05-10
INST OF PHYSICS - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lithium-ion battery using the solid electrolyte material as the electrolyte fundamentally solves the safety problem of the current commercial lithium-ion battery because it does not contain an organic electrolyte.

Method used

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  • Lithium carbon boron oxide solid electrolyte material and battery containing planar triangular groups
  • Lithium carbon boron oxide solid electrolyte material and battery containing planar triangular groups
  • Lithium carbon boron oxide solid electrolyte material and battery containing planar triangular groups

Examples

Experimental program
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Embodiment 1

[0048] Embodiment 1 of the present invention provides a lithium carbon boron oxide solid electrolyte material containing a planar triangular group, and its general chemical formula is: Li 2+x C z B b m m o 3-n Y n ;

[0049] Among them, C refers to carbon element, B refers to boron element, and O refers to oxygen element; each C or B or M forms a plane triangular structure with adjacent three Os, or each C or B or M forms a planar triangular structure with adjacent three Two Ys form a planar triangular structure; M is an element for doping and substituting Li, C or B; Y is an element for doping and substituting O; the M is specifically Na, K, Mg, Ca, Al, Ga , one or more of La, Y, Si,, Ge, Zr; said Y is specifically one or more of S, N, F; said x, z, b, m, n are respectively The mole percentage of the corresponding element; 0≤x≤1, 0.3≤z≤1, 0≤b≤1, 0≤m≤0.2, 0≤n≤0.5;

[0050] The lithium carbon boron oxide solid electrolyte material containing planar triangular groups prov...

Embodiment 2

[0059] This embodiment provides a preparation method of a lithium carbon boron oxide solid electrolyte material containing a planar triangular group, specifically a preparation method of a powder material, such as Figure 6 shown, including:

[0060] Step 201, Li source, C source, B source, M source, Y source according to Li 2+x C z B b m m o 3-n Y n molar ratio ingredients to form a precursor;

[0061] Specifically, the M can be one or more of Na, K, Mg, Ca, Al, Ga, La, Y, Si, Ge, Zr; the Y can be S, N, F One or more; said x, z, b, m, n are the mole percentages of corresponding elements; 0≤x≤1, 0.3≤z≤1, 0≤b≤1, 0≤m≤0.2 , 0≤n≤0.5.

[0062] Step 202, mixing uniformly through hand milling, planetary ball milling or high-energy ball milling to obtain precursor powder;

[0063] Step 203, pretreating the precursor powder in an air atmosphere at 100° C. to 500° C. for 1 to 12 hours;

[0064] Step 204, performing hand grinding, planetary ball milling or high energy ball mill...

Embodiment 3

[0068] This embodiment provides a preparation method of a lithium carbon boron oxide solid electrolyte material containing a planar triangular group, specifically another preparation method of a powder material, such as Figure 7 shown, including:

[0069] Step 301, Li source, C source, B source, M source, Y source according to Li 2+x C z B b m m o 3-n Y n molar ratio ingredients to form a precursor;

[0070] Specifically, the M can be one or more of Na, K, Mg, Ca, Al, Ga, La, Y, Si, Ge, Zr; the Y can be S, N, F One or more; said x, z, b, m, n are the mole percentages of corresponding elements; 0≤x≤1, 0.3≤z≤1, 0≤b≤1, 0≤m≤0.2 , 0≤n≤0.5.

[0071] Step 302, mixing uniformly through hand milling, planetary ball milling or high-energy ball milling to obtain precursor powder;

[0072] Step 303, pretreating the precursor powder in an air atmosphere at 100° C. to 500° C. for 1 to 12 hours;

[0073] Step 304, performing hand grinding, planetary ball milling or high energy bal...

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Abstract

The invention discloses a lithium-carbon-boron oxide solid electrolyte material containing a plane triangle group and a battery. A chemical general formula of the material is Li<2+x>CzBbMmO<3-n>Yn, wherein each C or B or M and adjacent three Os form a plane triangle structure; or each C or B or M and the adjacent three Ys form the plane triangle structure; M is an element for doping and substituting Li or C or B; Y is an element for doping and substituting O; M specifically is one or more of Na, K, Mg, Ca, Al, Ga, La, Y, Si, Ge and Zr; the Y specifically is one or more of S, N and F; x, z, b, m and n are respectively the molar percents accounted by the corresponding elements; x is smaller than or equal to 1 and greater than or equal to 0; z is smaller than or equal to 1 and greater than or equal to 0.3; b is smaller than or equal to 1 and greater than or equal to 0; m is smaller than or equal to 0.2 and greater than or equal to 0; and n is smaller than or equal to 0.5 and greater than or equal to 0.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a lithium carbon boron oxide solid state electrolyte material and battery containing planar triangular groups. Background technique [0002] In recent years, with the development of electric vehicles and the demand for grid energy storage and small energy storage, it is necessary to develop batteries that can be used in a wide temperature range and have high safety, high energy density, and power density. [0003] Lithium-ion batteries have been applied and developed relatively late as a chemical energy storage method, but they are regarded as one of the most competitive electrochemical energy storage technologies due to their light weight, high specific energy, high specific power, and long life. Existing commercial lithium-ion batteries mainly include two types: one is a lithium-ion battery using a liquid electrolyte, and the other is a lithium-ion battery using a gel electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0562
CPCY02E60/10
Inventor 张舒孟凡昊贺蒙李泓
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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