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Inorganic nonmetal sodium ion battery cathode material and preparation method thereof

A sodium-ion battery, inorganic non-metallic technology, applied in battery electrodes, non-metallic elements, positive electrodes, etc., can solve the problems of low ion and electronic conductivity, improve stability, ensure stability, conductivity and charging The effect of improving efficiency

Inactive Publication Date: 2019-11-12
许对兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the conductivity of ions and electrons in existing sodium-ion batteries is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention provides an inorganic non-metallic sodium ion battery cathode material, wherein the raw materials used include: 10-20 parts of sodium carbonate, 5-16 parts of sodium acetate, 8-23 parts of sodium nitrate, 5 parts of sodium hydroxide -15 parts, 5-16 parts of manganese carbonate, 8-16 parts of manganese acetate, 10-25 parts of manganese nitrate, 10-18 parts of manganese oxide, 15-20 parts of ammonium molybdate, 5-10 parts of molybdenum oxide, dihydrogen phosphate Ammonium 10-20 parts, ammonium phosphate 10-20 parts, diammonium hydrogen phosphate 10-20 parts, phosphoric acid 4-6 parts, dilute nitric acid 14-20 parts, water solvent 4-5 parts, citric acid 5-10 parts;

[0025] A preparation method of an inorganic non-metallic sodium ion battery cathode material, characterized in that: its specific steps are as follows:

[0026] Step 1: dissolving one or more of sodium carbonate, sodium acetate, sodium nitrate or sodium hydroxide and one or more of manganese carb...

Embodiment 2

[0040] The invention provides an inorganic non-metallic sodium ion battery cathode material, wherein the raw materials used include by weight: 12-18 parts of sodium carbonate, 6-15 parts of sodium acetate, 10-20 parts of sodium nitrate, 6 parts of sodium hydroxide -13 parts, 6-13 parts of manganese carbonate, 10-15 parts of manganese acetate, 12-20 parts of manganese nitrate, 12-16 parts of manganese oxide, 16-20 parts of ammonium molybdate, 6-8 parts of molybdenum oxide, dihydrogen phosphate Ammonium 12-18 parts, ammonium phosphate 12-18 parts, diammonium hydrogen phosphate 12-18 parts, phosphoric acid 5-6 parts, dilute nitric acid 15-18 parts, water solvent 4-5 parts, citric acid 5-10 parts;

[0041] A preparation method of an inorganic non-metallic sodium ion battery cathode material, characterized in that: its specific steps are as follows:

[0042] Step 1: dissolving one or more of sodium carbonate, sodium acetate, sodium nitrate or sodium hydroxide and one or more of man...

Embodiment 3

[0056] The invention provides an inorganic non-metallic sodium ion battery cathode material, wherein the raw materials used include by weight: 15-17 parts of sodium carbonate, 10-15 parts of sodium acetate, 12-18 parts of sodium nitrate, 7 parts of sodium hydroxide -10 parts, 8-14 parts of manganese carbonate, 12-15 parts of manganese acetate, 13-17 parts of manganese nitrate, 14-16 parts of manganese oxide, 17-19 parts of ammonium molybdate, 6-8 parts of molybdenum oxide, dihydrogen phosphate Ammonium 14-17 parts, ammonium phosphate 13-17 parts, diammonium hydrogen phosphate 13-17 parts, phosphoric acid 4-6 parts, dilute nitric acid 14-20 parts, water solvent 4-5 parts, citric acid 5-10 parts;

[0057] A preparation method of an inorganic non-metallic sodium ion battery cathode material, characterized in that: its specific steps are as follows:

[0058] Step 1: dissolving one or more of sodium carbonate, sodium acetate, sodium nitrate or sodium hydroxide and one or more of ma...

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PUM

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Abstract

The invention discloses an inorganic nonmetal sodium ion battery cathode material and a preparation method thereof, and particularly relates to the technical field of sodium battery cathode material.The inorganic nonmetal sodium ion battery cathode material comprises 10-20 parts of sodium carbonate, 5-16 parts of sodium acetate, 8-23 parts of sodium nitrate. 5-15 parts of sodium hydroxide, 5-16 parts of manganese carbonate, 8-16 parts of manganese acetate, 10-25 parts of manganese nitrate, 10-18 parts of manganese oxide, and 15-20 parts of ammonium molybdate. The cathode material prepared bymixing a solution obtained by mixing and stirring ammonium dihydrogen phosphate, ammonium phosphate, diammonium hydrogen phosphate and phosphoric acid and a solution obtained by dissolving ammonium molybdate and molybdenum oxide in an aqueous solvent improves the stability of the sodium battery during a charge-discharge process, and it can be obviously discovered that the conductivity and the charging efficiency are significantly improved and in a long-term test, the discharge specific capacity is still not significantly attenuated, thereby ensuring the stability of the sodium battery made ofthe cathode material in use.

Description

technical field [0001] The invention relates to the technical field of anode materials for sodium batteries, more specifically, the invention relates to an anode material for an inorganic non-metallic sodium ion battery and a preparation method thereof. Background technique [0002] Sodium-ion battery is a secondary battery (rechargeable battery), which mainly relies on sodium ions to move between the positive and negative electrodes. It works similarly to the working principle of lithium-ion batteries. The electrode materials used in sodium-ion batteries It is mainly sodium salt, which is more abundant and cheaper than lithium salt. Since sodium ions are larger than lithium ions, sodium-ion batteries are a cost-effective alternative when weight and energy density are not critical. [0003] Compared with lithium-ion batteries, sodium-ion batteries have the following advantages: rich reserves of sodium salt raw materials, low prices, the use of iron-manganese-nickel-based po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/58H01M10/054C01B25/26C01B25/45
CPCC01B25/26C01B25/45C01B25/451H01M4/5825H01M10/054H01M2004/021H01M2004/028Y02E60/10
Inventor 许对兴
Owner 许对兴
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