Nano porous oxide electrode material for lithium ion battery

A lithium-ion battery, nanoporous technology, applied in the direction of battery electrodes, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of low theoretical capacity, unable to meet the needs of industry development, etc., to avoid excessive pore size Larger, improved stability and functionality, enhanced electrical conductivity

Inactive Publication Date: 2015-03-11
JIANGSU LEKE METAL MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional lithium-ion battery anode materials are graphite and carbon materials, which cannot meet the needs of industry development due to their low theoretical capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment provides a nanoporous oxide electrode material for lithium-ion batteries, including C-skeleton reinforced nanoporous SnO 2 Composite material, its preparation method is specifically as follows:

[0020] (1) Mix ethylene glycol, ethanol and methanol in a ratio of 5:4:1, and then add stannous salt to make a stannous salt precursor solution;

[0021] (2) adding oxalic acid to the stannous salt precursor solution obtained in step (1), stirring and mixing to obtain a stannous oxalate precursor;

[0022] (3) Calcining the stannous oxalate precursor obtained in step (2) in air to obtain nanoporous SnO 2 Material;

[0023] (4) the nanoporous SnO obtained in step (3) 2 The material was mixed with glucose solution and reacted in a water bath at 45°C for 6 hours to obtain C-skeleton-enhanced nanoporous SnO 2 the precursor of

[0024] (5) Reinforce the C skeleton in step (4) with nanoporous SnO 2 The precursor was calcined under a protective atmosphere to obta...

Embodiment 2

[0027] This embodiment provides a nanoporous oxide electrode material for lithium-ion batteries, including C-skeleton reinforced nanoporous SnO 2 Composite material, its preparation method is specifically as follows:

[0028] (1) Mix ethylene glycol, ethanol and methanol in a ratio of 5:3:2, and then add stannous salt to make a stannous salt precursor solution;

[0029] (2) adding oxalic acid to the stannous salt precursor solution obtained in step (1), stirring and mixing to obtain a stannous oxalate precursor;

[0030] (3) Calcining the stannous oxalate precursor obtained in step (2) in air to obtain nanoporous SnO 2 Material;

[0031] (4) the nanoporous SnO obtained in step (3) 2 The material was mixed with glucose solution and reacted in a water bath at 85°C for 3 hours to obtain C-skeleton-enhanced nanoporous SnO 2 the precursor of

[0032] (5) Reinforce the C skeleton in step (4) with nanoporous SnO 2 The precursor was calcined under a protective atmosphere to obta...

Embodiment 3

[0035] This embodiment provides a nanoporous oxide electrode material for lithium-ion batteries, including C-skeleton reinforced nanoporous SnO 2 Composite material, its preparation method is specifically as follows:

[0036] (1) Mix ethylene glycol, ethanol and methanol in a ratio of 4:4:2, and then add stannous salt to make a stannous salt precursor solution;

[0037] (2) adding oxalic acid to the stannous salt precursor solution obtained in step (1), stirring and mixing to obtain a stannous oxalate precursor;

[0038] (3) Calcining the stannous oxalate precursor obtained in step (2) in air to obtain nanoporous SnO 2 Material;

[0039] (4) the nanoporous SnO obtained in step (3) 2 The material was mixed with glucose solution and reacted in a water bath at 65°C for 4.5 hours to obtain C-skeleton-enhanced nanoporous SnO 2 the precursor of

[0040] (5) Reinforce the C skeleton in step (4) with nanoporous SnO 2 The precursor was calcined under a protective atmosphere to ob...

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PUM

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Abstract

The invention discloses a nano porous oxide electrode material for a lithium ion battery. The nano porous oxide electrode material comprises a C-frame reinforced nano porous SnO2 composite material. The preparation method of the nano porous oxide electrode material specifically comprises the following steps: (1) mixing ethanediol, alcohol and methanol, and adding stannous salt to prepare a stannous salt precursor solution; (2) adding oxalic acid to the stannous salt precursor solution, and stirring and mixing uniformly to obtain a stannous oxalate precursor; (3) calcining the stannous oxalate precursor in air to obtain a nano porous SnO2 material;(4) mixing the nano porous SnO2 material with a glucose solution, and reacting for 3-6 hours under 45-85 DEG C water bath conditions to obtain a C-frame reinforced nano porous SnO2 precursor; (5) calcining the C-frame reinforced nano porous SnO2 precursor under a protective atmosphere to obtain the C-frame reinforced nano porous SnO2 composite material. The prepared nano porous oxide electrode material is applied to power lithium ion batteries, and nano porous oxide and a composite material thereof for energy-storage lithium ion batteries. The nano porous oxide electrode material has the characteristics of high specific capacity, good cyclic stability and excellent rate capability.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, and relates to a nanoporous oxide electrode material for lithium ion batteries. Background technique [0002] With the development of society, more and more portable electronic products are used by people, and the requirements for flexible and convenient energy storage devices are also getting higher and higher; at the same time, the rapid development of new energy technologies such as solar energy, wind energy and tidal energy requires corresponding Energy storage equipment is matched; due to the depletion of oil resources and exhaust pollution, the development of electric vehicles is particularly urgent, and high-performance energy storage devices are also required. Therefore, the development of secondary batteries with high energy density, high power density, high safety and no pollution has become one of the most important research topics. [0003] Currently widely used seconda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/48B82Y30/00
CPCB82Y30/00H01M4/364H01M4/48H01M4/62Y02E60/10
Inventor 潘军刘云建
Owner JIANGSU LEKE METAL MATERIAL TECH
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