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Reaction device for anode or cathode material of lithium battery

A negative electrode material and reaction device technology, which is applied in the field of lithium battery positive electrode or negative electrode material reaction device, can solve the problems such as the process cannot be continuously produced, and achieve the effect of adapting to large-scale industrial production, precise production, and realizing automation

Active Publication Date: 2014-01-22
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

[0004] The purpose of the present invention is to provide a reaction device for lithium battery positive or negative electrode materials, which can solve the defect that the original solid-phase synthesis process cannot be continuously produced, and can continuously produce lithium battery positive or negative electrode materials with high efficiency and low energy consumption

Method used

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  • Reaction device for anode or cathode material of lithium battery

Examples

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Effect test

example 1

[0017] The mixture of lithium carbonate and manganese dioxide with a particle size of 0.1-100 μm is added to the preheating section 1 through the material inlet A, and high-temperature flue gas is introduced into the jacket of the preheating section 1 to maintain 300-500°C in the preheating section 1, After the mixture of lithium carbonate and manganese dioxide is preheated for several hours, it is directly pushed into the reaction section 2 by the screw feeding device. The high-temperature flue gas is introduced into the jacket of the reaction section 2, so that the reaction section 2 is maintained at 500-900 ° C. At this temperature, the mixture of lithium carbonate and manganese dioxide reacts for several hours to generate lithium manganate, and the generated manganese Lithium acid then enters cooling device 6. In the cooling device 6, the generated lithium manganate is cooled by surface water cooling. Cooling water enters the cooling device 6 from the water inlet H of the...

example 2

[0019] The mixture of lithium carbonate and titanium oxide with a particle size of 0.1-100 μm is added to the preheating section 1 from the material inlet A, and high-temperature flue gas is introduced into the jacket of the preheating section 1 to maintain 300-500°C in the preheating section 1, After the mixture of lithium carbonate and titanium oxide is preheated for several hours, it is directly pushed into the reaction section 2 by the screw feeding device. The high-temperature flue gas is introduced into the jacket of the reaction section 2 to maintain the temperature in the reaction section 2 at 500-900°C. At this temperature, the mixture of lithium carbonate and titanium oxide will react for several hours to form lithium titanate, and the produced titanium Lithium acid then enters cooling device 6. The generated lithium titanate is cooled by surface water cooling in the cooling device 6 . Cooling water enters the cooling device 6 from the water inlet H of the cooling d...

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Abstract

The invention discloses a reaction device for an anode or cathode material of a lithium battery. In the device, the lower end of a preheating section is connected with the upper end of a reaction section; a spiral feeding device passes through the insides of the preheating section and the reaction section; the lower end of the spiral feeding device is connected with a rotating motor; the bottom of the reaction section is connected with a cooling device; the outer wall of the preheating section is provide with a jacket for introducing hot flue gas; the lower part of the preheating section is provided with a hot flue gas inlet communicated with the jacket; the upper part of the preheating section is provided with a hot flue gas outlet communicated with the jacket; the outer wall of the reaction section is provided with a jacket for introducing hot flue gas; the lower part of the reaction section is provided with a hot flue gas inlet communicated with the jacket; the upper part of the reactions section is provided with a hot flue gas outlet communicated with the jacket; the preheating section and the outer wall of the reaction section are provided with loose air holes; the top of the preheating section is provided with a material inlet; a material outlet is formed outside the cooling device; and the top of the preheating section is provided with a gas outlet. The reaction device is easy to operate, runs stably, can be used for continuously and accurately producing anode and cathode materials for lithium batteries, and meets the requirement of large-scale industrial production.

Description

technical field [0001] The invention relates to a reaction device for positive or negative materials of lithium batteries, in particular to a reaction device for positive or negative materials of lithium batteries using a solid-phase synthesis method. 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 electrode material is taken as an exampl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/20H01M4/139
CPCY02E60/122Y02E60/10
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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