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Device and process for manufacturing positive/negative electrode material of lithium battery

A technology of negative electrode material and production equipment, which is applied in the field of solid-phase synthesis method to produce lithium battery positive electrode or negative electrode material, can solve the problems of inability to realize continuous production, low degree of automation, etc. The effect of stop feeding

Active Publication Date: 2013-11-20
济宁市无界科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a production equipment and process for lithium battery cathode or anode materials, to solve the defects of the original equipment with low degree of automation and unable to realize continuous production, to achieve high efficiency, low energy consumption and continuous production of lithium battery anode or anode materials Production Process

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  • Device and process for manufacturing positive/negative electrode material of lithium battery
  • Device and process for manufacturing positive/negative electrode material of lithium battery
  • Device and process for manufacturing positive/negative electrode material of lithium battery

Examples

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specific example 1

[0026] A kind of production technology of lithium manganate battery cathode material is as attached figure 2 As shown, lithium carbonate LiCO3 and manganese oxygen-containing compounds (such as Mn3O4, Mn2O3, MnO2, etc.) particles with a particle size of 0.1-100 μm are respectively fed into the first feeding device 1-1 and the second feeding device 1-2 Fluidized bed mixing device 2, in the fluidized bed mixing device 2, particles of lithium carbonate LiCO3 and manganese oxygen-containing compounds (such as Mn3O4, Mn2O3, MnO2, etc.) Flue gas) is fluidized and fully mixed, and after being separated by the gas-solid separator 3, it enters the preheating section 4 of the spiral continuous feeding reaction device. The mixture of lithium carbonate LiCO3 and manganese oxygen-containing compounds (such as Mn3O4, Mn2O3, MnO2, etc.) is preheated for several hours and then directly enters the reaction section 5 of the spiral continuous feeding reaction device. In the reaction section 5 o...

specific example 2

[0028] A kind of production technology of lithium iron phosphate battery cathode material such as image 3 As shown, lithium carbonate, ferric phosphate (or ferrous phosphate), and reducing agent particles with a particle size of 0.1-100 μm are respectively fed by the first feeding device 1-1, the second feeding device 1-2 and the third feeding device 1-3 enter the fluidized bed mixing device 2, in the fluidized bed mixing device 2, lithium carbonate, iron phosphate (or ferrous phosphate), and reducing agent particles are fed into the fluidized bed mixing device 2 by nitrogen (or air or heat) Flue gas) is fluidized and fully mixed, and after being separated by the gas-solid separator 3, it enters the preheating section 4 of the spiral continuous feeding reaction device. Preheat the mixture of lithium carbonate, ferric phosphate (or ferrous phosphate) and reducing agent particles for 5 hours and then directly enter the reaction section 5 of the spiral continuous feeding reactio...

specific example 3

[0030] A kind of production technology of ternary type lithium battery cathode material is as follows figure 2 As shown, particles such as lithium carbonate, Ni-oxygen compound, Co-oxygen compound, Mn-oxygen compound with a particle size of 0.1-100 μm are respectively fed by the first feeding device 1-1 and the second feeding device 1- 2 Add the fluidized bed mixing device 2, in the fluidized bed mixing device 2, particles such as lithium carbonate, Ni-oxygenate, Co-oxygenate, Mn-oxygenate are fed into the fluidized bed mixing device 2 by nitrogen gas Realize fluidization and fully mix, and enter the preheating section 4 of the spiral continuous feeding reaction device after being separated by the gas-solid separator 3. In the preheating section 4 of the spiral continuous feeding reaction device at a temperature of 200-600 ° C, lithium carbonate , Ni-oxygenate, Co-oxygenate, and Mn-oxygenate particles are preheated for 2 to 15 hours and then directly enter the reaction sectio...

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Abstract

The invention relates to a device and process for manufacturing a positive / negative electrode material of a lithium battery. The device consists of a feeder, a fluidized bed mixer, a gas-solid separator, a spiral continuous feeding reaction device preheating section, a spiral continuous feeding reaction device reacting section, and a cooling device. The process for manufacturing the positive / negative electrode material of the lithium battery comprises the following steps of: firstly feeding raw materials for manufacturing the positive / negative electrode material of the lithium battery into the fluidized bed mixer through the feeder, fully mixing and then separating by the gas-solid separator, sequentially entering the spiral continuous feeding reaction device preheating section and the spiral continuous feeding reaction device reacting section, heating and reacting to generate the positive / negative electrode material of the lithium battery, and then entering the cooling device to be cooled, finally discharging the positive / negative electrode material of the lithium battery from a product outlet. The device and process provided by the invention can be used for continuously manufacturing the positive / negative electrode material of the lithium battery efficiently with low energy consumption.

Description

technical field [0001] The invention relates to a production equipment and process for a positive electrode or negative electrode material of a lithium battery, which adopts a solid-phase synthesis method to produce the positive electrode or negative electrode material of a lithium battery. Background technique [0002] The production of lithium-ion batteries is an emerging industry with broad prospects for development. At present, the relatively mature preparation method of positive (negative) electrode materials of lithium-ion batteries mainly adopts solid-phase synthesis method, and its main advantage is that the process is very simple and the preparation conditions are easy to control. Taking the preparation process of lithium manganate cathode material as an example, Li 2 CO 3 with MnO 2 The raw material particles are mixed and calcined at a high temperature of 500-900°C for several hours to obtain lithium manganate. LiCoO 2 The preparation process of the positive ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/48
CPCY02E60/12Y02E60/10
Inventor 蒋永乐向文国王岳段钰锋蒋永善贺兆书李俊峰
Owner 济宁市无界科技有限公司
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