Nano lithium and sodium ion battery electrode material with bubble wrap structure and preparation method thereof

A sodium ion battery and electrode material technology, applied in battery electrodes, secondary batteries, structural parts, etc., can solve the problems of unsatisfactory battery performance and poor appearance, achieve good buffering effect, improve stability, and prolong cycle life Effect

Inactive Publication Date: 2016-10-26
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve technical problems such as poor morphology of existing nano-lithium/sodium-ion battery electrode materials and unsatisfactory battery performance, the invention provides a preparation of a nano-lithium/sodium-ion battery electrode material with a bubble paper structure method,

Method used

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  • Nano lithium and sodium ion battery electrode material with bubble wrap structure and preparation method thereof
  • Nano lithium and sodium ion battery electrode material with bubble wrap structure and preparation method thereof
  • Nano lithium and sodium ion battery electrode material with bubble wrap structure and preparation method thereof

Examples

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Example Embodiment

[0088] Example 1

[0089] Bubble paper structure Sn

[0090] 0.384g K 2 SnO 3 ·3H 2 O and 0.48g urea are dissolved in 80mL deionized water-absolute ethanol mixed solution (volume ratio 5:3), the mixed solution is stirred with a magnetic stirring device for 30 minutes and then transferred to a Teflon-lined hydrothermal kettle, And keep it at 190℃ for 10h in a blast drying box, centrifuge the resulting solution to obtain white powder and dry it at 60℃ for 12h to obtain SnO 2 Precursor. SnO obtained after drying 2 0.1g precursor was dissolved in a mixed solution of 40mL deionized water and ethanol (volume ratio 3:1), 0.2g glucose was added to the solution and sonicated for 20 minutes, stirred for 1h, and then the solution was transferred to 50mL Teflon In a lined hydrothermal kettle and kept at 190°C in a blast drying box for 10 hours, brown powder was obtained by centrifugation. In order to form a carbon film, after drying, 0.2 g of the above brown powder, 0.1 g glucose and 6.7 g s...

Example Embodiment

[0107] Example 2

[0108] 0.392g(NH 4 ) 2 MoO 4 Dissolve 0.48g urea in 80mL deionized water-absolute ethanol mixed solution (volume ratio 5:3), stir the mixed solution with a magnetic stirring device for 30 minutes, then transfer it to a Teflon-lined hydrothermal kettle, and The temperature was kept at 190°C for 10h in a blast drying box, the solution obtained after the reaction was centrifuged to obtain a white powder and dried at 60°C for 12h. MoO obtained after drying 2 0.1g precursor was dissolved in a mixed solution of 40mL deionized water and ethanol (volume ratio 3:1), 0.2g glucose was added to the solution and sonicated for 20 minutes, stirred for 1h, and then the solution was transferred to 50mL Teflon In a lined hydrothermal kettle and kept at 190°C in a blast drying box for 10 hours, brown powder was obtained by centrifugation. In order to form a carbon film, after drying, 0.2 g of the above brown powder, 0.1 g glucose and 6.7 g sodium chloride were dissolved in 50 mL...

Example Embodiment

[0110] Example 3

[0111] 0.464g GeCl 4 ·H 2 O and 0.56g urea are dissolved in 80mL deionized water-absolute ethanol mixed solution (volume ratio 5:3), the mixed solution is stirred with a magnetic stirring device for 30 minutes and then transferred to a Teflon-lined hydrothermal kettle, It was kept at 190°C for 10h in a blast drying box, and the solution obtained after the reaction was centrifuged to obtain a white powder and dried at 60°C for 12h. Take the GeO obtained after drying 2 0.1g precursor was dissolved in a mixed solution of 40mL deionized water and ethanol (volume ratio 3:1), 0.2g glucose was added to the solution and sonicated for 20 minutes, stirred for 1h, and then the solution was transferred to 50mL Teflon In a lined hydrothermal kettle and kept at 190°C in a blast drying box for 10 hours, brown powder was obtained by centrifugation. In order to form a carbon film, after drying, 0.2 g of the above brown powder, 0.1 g glucose and 6.7 g sodium chloride were disso...

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Abstract

The invention discloses a nano lithium and sodium ion battery electrode material with bubble wrap structure and a preparation method thereof. The preparation method comprises the steps: (1), subjecting electrode material raw materials and a surfactant to hydrothermal reaction in an organic solvent solution, separating solid and liquid, and drying to obtain an energy storage material precursor; (2), dispersing the energy storage material precursor and an organic carbon source in the organic solvent solution for hydrothermal reaction, separating solid and liquid, and drying; (3), dispersing a dried product of step (2), an organic carbon source and a template in a solution, heating and dehydrating, annealing in a mixed atmosphere of a reducing gas and an inertial gas, and removing the template to obtain the nano lithium and sodium ion battery electrode material. The invention also comprises the nano lithium and sodium ion battery electrode material prepared by using the preparation method. The electrode material has bubble wrap structure and has good electrical properties.

Description

technical field [0001] The invention relates to the field of lithium-ion batteries with high specific capacity and high cycle stability, and specifically refers to a preparation method of a nano energy storage material with a bubble paper structure and the electrochemical application of the material as a lithium / sodium ion electrode material. Background technique [0002] With the rapid development of economy and society in the 21st century and the continuous improvement of industrial level, traditional fossil energy sources such as coal and oil are facing the situation of exhaustion. At the same time, the widespread use of traditional fossil energy has caused unprecedented environmental pollution. In order to achieve sustainable development, all kinds of renewable and clean energy have become the focus of vigorous development by countries all over the world. However, renewable energy generally has the disadvantages of large total amount, low energy density, and unsatisfact...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M10/0525
CPCH01M4/366H01M10/0525Y02E60/10
Inventor 刘军李斯特王子明杨林钰
Owner CENT SOUTH UNIV
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