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Precursor glass of lithium phosphorous complex oxide and method for manufacturing same, method for manufacturing precursor crystallized glass of lithium phosphorous complex oxide, and lithium phosphorous complex oxide powder and method for manufacturing same

A technology of composite oxides and manufacturing methods, which is applied in the manufacture of oxide conductors, phosphorus compounds, cables/conductors, etc., and can solve problems such as inability to obtain uniform micronization

Active Publication Date: 2020-02-11
SUMITA OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, uniform micronized crystals cannot be obtained in the end

Method used

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  • Precursor glass of lithium phosphorous complex oxide and method for manufacturing same, method for manufacturing precursor crystallized glass of lithium phosphorous complex oxide, and lithium phosphorous complex oxide powder and method for manufacturing same
  • Precursor glass of lithium phosphorous complex oxide and method for manufacturing same, method for manufacturing precursor crystallized glass of lithium phosphorous complex oxide, and lithium phosphorous complex oxide powder and method for manufacturing same
  • Precursor glass of lithium phosphorous complex oxide and method for manufacturing same, method for manufacturing precursor crystallized glass of lithium phosphorous complex oxide, and lithium phosphorous complex oxide powder and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] (Example 1: Li 1.4 Al 0.4 Ti 1.6 (PO 4 ) 3 manufacturing)

[0104] Follow the procedure below to manufacture Li 1.4 Al 0.4 Ti 1.6 (PO 4 ) 3 Represented lithium-phosphorus composite oxide.

[0105] Li:Al:Ti:P=1.4:0.4:1.6:3 (in terms of oxides, Li 2 O:1.4, Al 2 o 3 :0.4, TiO 2 :3.2, P 2 o 5 :3) method, prepared to take the specified amount of LiPO 3 , Al(PO 3 ) 3 、Ti 2 P 2 o 7 , and TiO 2 as a raw material. In addition, Li 2 O: 6, P 2 o 5 : 3 (Li / P=2) method, prepare and weigh the specified amount of LiPO 3 and Li 2 CO 3 as additional raw material. Mix them and melt them, thus making by Li 2 O: 7.4, Al 2 o 3 :0.4, TiO 2 :3.2, P 2 o 5 : 6 (molar ratio) precursor glass (x=0.4, y=3). It should be pointed out that the calculation of Li in the mixture and precursor glass 2 The ratio of O was 43.5 mol%.

[0106] Next, the precursor glass was heated at 500° C. for 10 hours, and then at 700° C. for 10 hours, thereby producing a precursor crys...

Embodiment 2

[0108] (Example 2: LiTi 2 (PO 4 ) 3 manufacturing)

[0109] Follow the procedure below to manufacture LiTi 2 (PO 4 ) 3 Represented lithium-phosphorus composite oxide.

[0110] In terms of molar ratio, Li:Ti:P=1:2:3 (in terms of oxides, Li 2 O:1, TiO 2 :4, P 2 o 5 :3) method, prepared to take the specified amount of LiPO 3 、Ti 2 P 2 o 7 , and TiO 2 as a raw material. In addition, Li 2 O: 4.5, P 2 o 5 :3 (Li / P=1.5) method, prepare and weigh the specified amount of LiPO 3 and Li2 CO 3 as additional raw material. Mix them and melt them, thus making by Li 2 O: 5.5, TiO 2 :4, P 2 o 5 : 6 (molar ratio) precursor glass (x=0, y=3). It should be pointed out that the calculation of Li in the mixture and precursor glass 2 The ratio of O was 35.5 mol%.

[0111] Next, the precursor glass was heated at 500° C. for 10 hours, and then at 700° C. for 10 hours, thereby producing a precursor crystallized glass.

[0112] Then, the precursor crystallized glass was immers...

Embodiment 3

[0113] (Example 3: Li 1.2 Cr 0.2 Ti 1.8 (PO 4 ) 3 manufacturing)

[0114] Follow the procedure below to manufacture Li 1.2 Cr 0.2 Ti 1.8 (PO 4 ) 3 Represented lithium-phosphorus composite oxide.

[0115] Li:Cr:Ti:P=1.2:0.2:1.8:3 (in oxide conversion, Li 2 O:1.2, Cr 2 o 3 :0.2, TiO 2 :3.6, P 2 o 5 :3) method, prepared to take the specified amount of LiPO 3 、Ti 2 P 2 o 7 、Cr 2 o 3 and TiO 2 as a raw material. In addition, Li 2 O: 5, P 2 o 5 :2 (Li / P=2.5) method, prepare and weigh the specified amount of LiPO 3 and Li 2 CO 3 as additional raw material. Mix them and melt them, thus making by Li 2 O:6.2, Cr 2 o 3 :0.2, TiO 2 :3.6, P 2 o 5 : 5 (molar ratio) precursor glass (x=0.2, y=2). It should be pointed out that the calculation of Li in the mixture and precursor glass 2 The ratio of O was 41.3 mol%.

[0116] Next, the precursor glass was heated at 500° C. for 10 hours, and then at 700° C. for 10 hours, thereby producing a precursor crystalli...

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Abstract

Provided is a high quality lithium phosphorous complex oxide powder. The lithium phosphorous complex oxide powder is characterized by comprising Li1+xMIII xMIV 2-x(PO4)3 (where 0<=x<=1, MIII is an element selected from Al, Sc, Cr, Fe, Ga, and In, and MIV is an element selected from Si, Ti, Ge, and Zr) and having a concentration of Zn as an impurity of less than 100 ppm.

Description

technical field [0001] The present invention relates to a precursor glass of a lithium-phosphorus composite oxide and a manufacturing method thereof, a manufacturing method of a precursor crystallized glass of a lithium-phosphorus composite oxide, and a lithium-phosphorus composite oxide powder and a manufacturing method thereof. Background technique [0002] The crystal chemistry of lithium-phosphorus composite oxides is stable and shows high lithium-ion conductivity at room temperature, so they are expected to be used as solid electrolyte materials for lithium-ion secondary batteries. As a representative lithium-phosphorus composite oxide that can be used as a solid electrolyte material, Li 1+x Al x Ti 2-x (PO 4 ) 3 Among the substances represented by (0≤x≤1.0), the substance with x=0 is also called "LTP", and the substance with 0<x≤1.0 is also called "LATP". [0003] In addition, in order to be used in batteries of various forms and shapes such as all-solid-state ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/17C01B25/45C03B32/02C03C3/21C03C8/02C03C10/02H01M10/052H01M10/0562
CPCH01M10/052H01M10/0562C01B25/45C03B32/02C03C3/21C03C12/00H01B1/06H01B1/08H01B13/00Y02E60/10C03C10/00C03C15/00C01P2002/72C01P2004/03C01P2006/40C01P2006/80H01M10/0525H01M2300/0068
Inventor 手塚达也
Owner SUMITA OPTICAL GLASS