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Recovery device of lithium iron phosphate positive electrode material

A positive electrode material, lithium iron phosphate technology, applied in the field of lithium iron phosphate positive electrode material recovery device, can solve the problems of low intelligence, easy to be oxidized, and waste gas pollution, so as to avoid waste gas pollution of the environment and improve material quality. The effect of separation speed and high degree of intelligence

Pending Publication Date: 2021-09-03
英德市湾区新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, it is necessary to recycle the waste lithium iron phosphate positive pole pieces. However, the current recovery device for lithium iron phosphate positive pole materials, the recovered lithium iron phosphate positive pole materials are easily oxidized during the recovery process, and it is difficult to ensure that the recovered lithium iron phosphate The quality of the positive electrode material; secondly, the current recovery device for lithium iron phosphate positive electrode material, the calcination effect is not very good, resulting in a slow separation speed of the material on the surface of the waste lithium iron phosphate positive electrode sheet, thus affecting the recovery efficiency of lithium iron phosphate positive electrode material In addition, the current recovery device for lithium iron phosphate cathode material is not very intelligent, and the operation is not very convenient; in addition, the current recovery device for lithium iron phosphate cathode material has no purification function, and the Exhaust gas will pollute the environment, resulting in poor environmental protection value

Method used

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  • Recovery device of lithium iron phosphate positive electrode material
  • Recovery device of lithium iron phosphate positive electrode material
  • Recovery device of lithium iron phosphate positive electrode material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] like figure 1 As shown, a recovery device for lithium iron phosphate cathode material provided in this embodiment includes: a base 1 , a calciner 2 and a driving mechanism 3 .

[0051] Among them, such as figure 1 As shown, in order to enable the recovery device of the lithium iron phosphate positive electrode material to be placed stably, the base 1 is set horizontally, and a foot is fixedly installed at the bottom of the base 1;

[0052] Among them, such as Figure 1-8 As shown, the calciner 2 is used for sintering the waste lithium iron phosphate positive pole piece. The calciner 2 consists of two columns 201, a support shaft 204, a casing 202, an upper cover 203, a cylindrical hollow liner 210, and a first sealing cover. 213. Several electric heating plates 205, a collecting hopper 208 and a second sealing cover 209 are formed. The two columns 201 are installed vertically and fixedly on the upper part of the base 1. The support shaft 204 is rotatably installed bet...

Embodiment 2

[0058] like figure 1 As shown, the difference between the lithium iron phosphate cathode material recovery device provided in this embodiment and the embodiment 1 is that it also includes a control mechanism 4 .

[0059] Among them, such as Figure 1-5 As shown in 14-16, the control mechanism 4 is used to control the operation of the calciner 2 and the drive mechanism 3; the control mechanism 4 is composed of a control box 401, a controller 404, a temperature sensor and a touch screen 408, and the control box 401 is supported by The rod 410 is fixedly installed on the upper part of the base 1, the controller 404 is fixedly installed inside the control box 401, and the controller 404 is respectively electrically connected with the driving motor 304 and a plurality of electric heating plates 205, and the temperature sensor is embedded in the two sides of the shell 202. The signal output end of the temperature sensor is electrically connected to the signal input end of the contr...

Embodiment 3

[0065] like figure 1 As shown, the difference between the lithium iron phosphate cathode material recovery device provided in this embodiment and the embodiment 2 is that it also includes a purification mechanism 5 .

[0066] Among them, such as Figure 1-4 Shown in 9-13 and 16, the purification mechanism 5 is used to purify the waste gas produced in the calciner 2 working process. The purification mechanism 5 consists of a liquid medicine barrel 501, a suction fan 509, a first cylindrical housing 513, The first end cover 514, the filter screen 518, the first connecting pipe 510, the second connecting pipe 507, the exhaust pipe 511, the second cylindrical housing 512, the second end cover 520 and the filter element 519 are composed of the liquid medicine barrel 501 It is fixedly installed on the top of the base 1, and the inside of the liquid medicine barrel 501 contains purified liquid medicine. The suction fan 509 is fixedly installed on the top of the liquid medicine barre...

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Abstract

The invention belongs to the technical field of lithium iron phosphate positive electrode material recovery, and discloses a recovery device of a lithium iron phosphate positive electrode material. The device comprises a base, a calcining furnace, a driving mechanism, a control mechanism and a purification mechanism, wherein the calcining furnace is used for sintering a waste lithium iron phosphate positive electrode piece; the driving mechanism is used for driving the calcining furnace to work; and the control mechanism is used for controlling the calcining furnace, the driving mechanism and the purification mechanism to work. The recovery device of the lithium iron phosphate positive electrode material provided by the invention can prevent the recovered lithium iron phosphate positive electrode material from being oxidized, can ensure the quality of the recovered lithium iron phosphate positive electrode material, not only can improve the calcination effect, but also can effectively improve the separation speed of substances on the surface of the waste lithium iron phosphate positive electrode piece, so that the recovery efficiency of the lithium iron phosphate positive electrode material is improved, the intelligent degree is relatively high, the operation is relatively convenient, the purification function is achieved, waste gas generated in the working process can be prevented from polluting the environment, and the environmental protection value is relatively good.

Description

technical field [0001] The invention relates to the technical field of recycling lithium iron phosphate cathode materials, in particular to a recycling device for lithium iron phosphate cathode materials. Background technique [0002] Lithium iron phosphate is a lithium-ion battery electrode material with a chemical formula of LiFePO4, which is mainly used in various lithium-ion batteries. Lithium iron phosphate battery is a lithium ion battery that uses lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material. Lithium iron phosphate battery has high working voltage, high energy density, long cycle life, good safety performance, self-discharge The advantages of small rate and no memory effect. [0003] Therefore, it is necessary to recycle the waste lithium iron phosphate positive pole pieces. However, the current recovery device for lithium iron phosphate positive pole materials, the recovered lithium iron phosphate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J6/00B01D46/24B01D53/04B01D53/78C01B25/45H01M4/58H01M10/54
CPCB01J6/002B01D53/78B01D46/24B01D53/04C01B25/45H01M10/54H01M4/5825B01D2253/102B01D2251/306B01D2251/604B01D2258/02Y02W30/84Y02E60/10
Inventor 武洪彬梁德钱张方奇
Owner 英德市湾区新能源科技有限公司