A lead-based negative electrode material

A negative electrode material, lead-based technology, applied in the direction of negative electrodes, lead compounds, battery electrodes, etc., can solve the problems of restricting industrial applications, high nanometer cost, etc., and achieve the effect of improving conductivity, good cycle performance, and stable structure

Active Publication Date: 2022-02-01
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nanoscale cost of these two alloy components is very high, which limits their industrial application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] A composition design of a lead-based negative electrode material, comprising:

[0018] 1) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.01mol SnF 2 ;

[0019] 2) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.01mol SnO;

[0020] 3) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.005mol SnF 2 ,0.005mol SnO;

[0021] The above materials are added with other conventional salts and reagents, and heated to prepare a lead-based negative electrode material; the lead-based material has good electrochemical properties, 5Ag -1 Under the current density, 300 charge and discharge cycles, the electrochemical capacity is greater than 200mAh / g.

example 2

[0023] A composition design of a lead-based negative electrode material, comprising:

[0024] 4) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.01mol MgF 2 ;

[0025] 5) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.01mol SnO 2 ;

[0026] 6) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.005mol AlCl 3 ,0.005mol GeO;

[0027] The above materials are added with other conventional salts and reagents, and heated to prepare a lead-based negative electrode material; the lead-based material has good electrochemical properties, 5Ag -1 Under the current density, 300 charge and discharge cycles, the electrochemical capacity is greater than 200mAh / g.

example 3

[0029] A composition design of a lead-based negative electrode material, comprising:

[0030] 7) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.008mol MgI 2 ,0.003mol GeO;

[0031] 8) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.006mol SnO,0.004mol Sb 2 o 3 ;

[0032] 9) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.005mol AlCl 3 ,0.005mol Sb 2 o 5 ;

[0033] 10) 0.06mol CsCO 3 ,0.06mol PbBr 2 ,0.006mol SnF 2 ,0.001mol CuO;

[0034] The above materials are added with other conventional salts and reagents, and heated to prepare a lead-based negative electrode material; the lead-based material has good electrochemical properties, 5Ag -1 Under the current density, 300 charge and discharge cycles, the electrochemical capacity is greater than 200mAh / g.

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Abstract

The invention discloses a lead-based negative electrode material, which is CsPb x m 1‑x Br y‑z N z ; Wherein: M is one or both of tin, germanium, antimony, copper, aluminum, magnesium, the number of moles of x is 0.001-0.3; the number of moles of y is 1-6; N is oxygen, fluorine, chlorine, iodine One or both of them, the molar number of z is 0.001‑1; M and N exist in the form of ions CsPb x m 1‑ x Br y‑z N z In; M and N are from one compound, two compounds or more compounds. The lead-based negative electrode material has good electrochemical properties and has good application prospects in the field of batteries.

Description

technical field [0001] The patent of the present invention relates to an electrode material, in particular to a lead-based negative electrode material. Background technique [0002] Lithium-ion batteries are currently rapidly developing energy storage devices and have been widely used in portable power sources such as mobile phones, notebook computers, and electric vehicles. The performance of lithium-ion batteries mainly depends on the performance of lithium intercalation and extraction electrode materials. At present, the commercial lithium-ion battery anode material graphite has problems such as low theoretical lithium storage capacity and easy occurrence of organic solvent co-intercalation, which seriously restricts the practical application of lithium-ion batteries. Finding anode materials with high specific capacity and high cycle performance is a key problem that researchers and enterprises are trying to solve. [0003] Lithium alloy has the advantages of high speci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/58H01M10/0525C01G21/00
CPCH01M4/582H01M10/0525C01G21/006H01M2004/021H01M2004/027Y02E60/10
Inventor 谢文青曹江行张军杰梁攀飞刘凯元马廷丽范美强
Owner CHINA JILIANG UNIV
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