CN114069084A - Method for recovering anode material of waste lithium ion battery - Google Patents
Method for recovering anode material of waste lithium ion battery Download PDFInfo
- Publication number
- CN114069084A CN114069084A CN202111236241.2A CN202111236241A CN114069084A CN 114069084 A CN114069084 A CN 114069084A CN 202111236241 A CN202111236241 A CN 202111236241A CN 114069084 A CN114069084 A CN 114069084A
- Authority
- CN
- China
- Prior art keywords
- filtrate
- ion battery
- lithium ion
- filter residue
- anode material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The application relates to the technical field of recycling processes, in particular to a method for recycling a waste lithium ion battery anode material, which comprises the following steps: mixing the collected waste lithium ion battery anode material with sodium bicarbonate for pyrolysis treatment to obtain a pyrolysis product; washing the pyrolysis product with water, and filtering to obtain a first filtrate and a first filter residue; mixing the first filter residue with sulfuric acid with the pH value of 2-2.5, performing acid leaching treatment, and filtering to obtain a second filtrate and a second filter residue; and mixing the second filter residue and bagasse in a sulfuric acid solution for reduction leaching reaction, and then filtering to obtain a third filtrate and a third filter residue. The recovery method not only can recover the anode material of the waste lithium ion battery at low cost, but also does not generate sulfur dioxide, can realize secondary utilization of bagasse, is low-carbon and environment-friendly, and has good application prospect.
Description
Technical Field
The application belongs to the technical field of recycling processes, and particularly relates to a recycling method of a waste lithium ion battery anode material.
Background
The waste power batteries contain a lot of lithium, the existing method for treating the waste ions mainly comprises a pyrogenic process and a wet process, and the pyrometallurgical treatment of the waste lithium ion batteries has large energy but larger pollution, and is mainly recovered by the wet process at present. The method has the advantages that the recovery purity of hydrometallurgy is high, each treatment process is strict, the existing waste lithium ion battery is mainly recovered by a full hydrometallurgy process, the first step of the main process is acid leaching, then precipitation and impurity removal are carried out, cobalt and nickel are extracted and recovered again, and then lithium is precipitated or extracted and recovered.
Waste lithium cobaltate (LiCoO)2) The battery contains high-price cobalt, is difficult to react with acid and exists in an aqueous solution; ternary positive electrode material Li (NiCoMn) O2More high-valence cobalt is added, a reducing agent is mostly added in the leaching process, cobalt, nickel, manganese and lithium are simultaneously leached into the solution, and the leached high-valence Co and Mn compounds are difficult to exist in the aqueous solution. Therefore, during leaching, a reducing agent is required to reduce higher oxides of Co and Mn to lower valence Co2+And Mn2+To increase their leaching rate, the reaction is, for example, as follows:
2LiCoO2+H2O2+6H+＝2Li++2Co2++2O2↑+4H2O；
the leaching time of wet-method recovery metal acid leaching is longer, more impurity ions are mixed in a leached metal solution, 90% of lithium is easily leached into a solution mixed with cobalt, nickel and manganese, acid consumption is high, more cobalt, nickel and manganese solution can be lost when impurity removal is carried out in a solution with higher concentration, sulfur dioxide is easily generated by an industrial reducing agent sodium metabisulfite used in the leaching process, workers are harmed, hydrogen peroxide is easily decomposed at high temperature, and the cost of glucose and starch is higher. Therefore, the existing waste ternary batteries have the problems of high impurity content, long process time in the impurity removal process, high cost of the reducing agent, high pollution and the like in the leaching process.
Disclosure of Invention
The application aims to provide a method for recovering a waste lithium ion battery anode material, and aims to solve the technical problem of how to recover the waste lithium ion battery anode material at low cost better.
In order to achieve the purpose of the application, the technical scheme adopted by the application is as follows:
a method for recovering a waste lithium ion battery anode material comprises the following steps:
mixing the collected waste lithium ion battery anode material with sodium bicarbonate for pyrolysis treatment to obtain a pyrolysis product;
washing the pyrolysis product with water, and filtering to obtain a first filtrate and a first filter residue;
mixing the first filter residue with sulfuric acid with the pH value of 2-2.5 for acid leaching treatment, and then filtering to obtain a second filtrate and a second filter residue;
mixing the second filter residue and bagasse in a sulfuric acid solution for reduction leaching reaction, and then filtering to obtain a third filtrate and a third filter residue;
the first filtrate contains more than 90% of lithium metal in the waste lithium ion battery anode material, the second filtrate contains 1-5% of lithium metal and 1-4% of non-lithium metal in the waste lithium ion battery anode material, and the third filtrate contains more than 95% of non-lithium metal in the waste lithium ion battery anode material.
The method comprises the steps of mixing the waste lithium ion battery positive electrode material with sodium bicarbonate for pyrolysis treatment, selectively washing out most of lithium by using water, and then carrying out acid leaching treatment, so that the consumption of acid can be reduced, mixing second filter residue obtained by the acid leaching treatment with bagasse in a sulfuric acid solution for reduction leaching reaction, wherein aldehyde groups in the bagasse and intermediate products RCOO and H obtained after reaction2All can be reacted with expensive Ni3+、Co3+Etc. of the metal, so that it can be reduced to Co2+、Ni+And the like, thus improving the leaching rate of the metal. The recovery method not only can recover the anode material of the waste lithium ion battery at low cost, but also does not generate sulfur dioxide, and can realize sweet tasteThe secondary utilization of the bagasse is low-carbon and environment-friendly, and the application prospect is good.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts;
fig. 1 is a schematic flow chart of a method for recovering a waste lithium ion battery positive electrode material according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly apparent, the present application is further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The weight of the related components mentioned in the description of the embodiments of the present application may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, the content of the related components is scaled up or down within the scope disclosed in the description of the embodiments of the present application as long as it is scaled up or down according to the description of the embodiments of the present application. Specifically, the mass described in the specification of the embodiments of the present application may be a mass unit known in the chemical industry field such as μ g, mg, g, kg, etc.
The terms "first" and "second" are used for descriptive purposes only and are used for distinguishing purposes such as substances from one another, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. For example, a first XX may also be referred to as a second XX, and similarly, a second XX may also be referred to as a first XX, without departing from the scope of embodiments of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The embodiment of the application provides a method for recovering a waste lithium ion battery positive electrode material, as shown in fig. 1, the method for recovering the waste lithium ion battery positive electrode material comprises the following steps:
s01: mixing the collected waste lithium ion battery anode material with sodium bicarbonate for pyrolysis treatment to obtain a pyrolysis product;
s02: washing the pyrolysis product with water, and filtering to obtain a first filtrate and a first filter residue;
s03: mixing the first filter residue with sulfuric acid with the pH value of 2-2.5, performing acid leaching treatment, and filtering to obtain a second filtrate and a second filter residue;
s04: mixing the second filter residue and bagasse in a sulfuric acid solution for reduction leaching reaction, and then filtering to obtain a third filtrate and a third filter residue;
the first filtrate contains more than 90% of lithium metal in the anode material of the waste lithium ion battery, the second filtrate contains 1-5% of lithium metal and 1-4% of non-lithium metal in the anode material of the waste lithium ion battery, and the third filtrate contains more than 95% of non-lithium metal in the anode material of the waste lithium ion battery.
The embodiment of the application provides a method for recycling a waste lithium ion battery anode material, the method comprises the steps of mixing the waste lithium ion battery anode material with sodium bicarbonate for pyrolysis treatment, selectively washing out most of lithium by using water, and then performing acid leaching treatment, so that the consumption of acid can be reduced, and second filter residue obtained by acid leaching treatment and bagasse are mixedThe mixture is combined in sulfuric acid solution for reduction leaching reaction, because of aldehyde group in bagasse and intermediate products RCOO and H after reaction2All can be reacted with expensive Ni3+、Co3+Etc. of the metal, so that it can be reduced to Co2+、Ni+And the like, thus improving the leaching rate of the metal. The recovery method not only can recover the anode material of the waste lithium ion battery at low cost, but also does not generate sulfur dioxide, can realize secondary utilization of bagasse, is low-carbon and environment-friendly, and has good application prospect.
Specifically, the first filtrate contains more than 90% of lithium metal in the anode material of the waste lithium ion battery, the second filtrate contains 1-5% of lithium metal and 1-4% of non-lithium metal in the anode material of the waste lithium ion battery, and the third filtrate contains more than 95% of non-lithium metal in the anode material of the waste lithium ion battery. The method comprises the following steps that more than 90% of lithium metal (calculated by total weight of 100%) in the anode material of the waste lithium ion battery is left in a first filtrate, and 1-5% of lithium metal is left in a second filtrate; and more than 95% of non-lithium metals (calculated by the total weight of 100%) in the anode material of the waste lithium ion battery are left in the third filtrate, and 1-4% of non-lithium metals are left in the second filtrate.
In one embodiment, the waste lithium ion battery cathode material recovered by the method is a ternary cathode material, so that the first filtrate formed by the recovery method is a lithium-rich solution which can be used for recovering lithium, the second filtrate contains a low-valence cobalt nickel manganese solution and a small amount of lithium, and the third filtrate is rich in high-concentration low-valence cobalt nickel manganese. Therefore, the second filtrate and the third filtrate can be used for recovering cobalt, nickel and manganese.
In one embodiment, the waste lithium ion battery anode material is a ternary anode material, the non-lithium metal mentioned above refers to divalent cobalt nickel manganese metal, wherein the lithium concentration in the first filtrate is greater than or equal to 3.5g/L, the lithium concentration in the second filtrate is less than or equal to 0.2g/L, the cobalt nickel manganese concentration is 7-8 g/L, and the cobalt nickel manganese concentration in the third filtrate is greater than or equal to 30g/L, so that most of lithium can be recovered from the first filtrate, and the second filtrate and the third filtrate can be used for recovering most of low-valence cobalt nickel manganese.
In step S01, the used lithium ion battery positive electrode material is laid on the sodium bicarbonate. Adding sodium bicarbonate and the waste lithium ion battery electrode material in a mass ratio of 1: 2-3, sodium bicarbonate is paved at the bottom of the anode material of the waste lithium ion battery, so that the pyrolysis effect is better.
In one embodiment, the pyrolysis treatment is performed at 600-700 deg.C, such as 600 deg.C, 640 deg.C, 680 deg.C, 700 deg.C, for 3-4 h. Under the condition, the pyrolysis can be more fully performed. Further, the pyrolysis treatment is performed under nitrogen.
In the step S02, the water consumption of the pyrolysis product water washing treatment is determined by using a liquid-solid ratio of 10-15 mL: 1g is standard. The washing process is accompanied by stirring, the stirring speed is 500-600 r/min, the washing temperature is 20-50 ℃, and the washing time is 50-60 min. The washing effect is better under the condition, and the lithium ions can be better washed out by water, so that the lithium is recovered, and the consumption of acid in the subsequent process is reduced.
In the step S03, the stirring speed is 500-600 r/min, the temperature is 50-60 ℃, and the time is 1-2 h during the acid leaching treatment. Filtering after the acid leaching treatment is finished to obtain second filter residue and second filtrate, namely the second filter residue and the second filtrate contain low-price cobalt, nickel and manganese which are used for recycling the cobalt, nickel and manganese. Sulfuric acid with the pH value of 2-2.5 is mixed for acid leaching treatment to leach part of nickel, cobalt and manganese, and the use of a reducing agent can be reduced by reducing and leaching the subsequent second filter residue.
In the step S04, performing a reduction leaching reaction, and reducing and leaching the second filter residue by using a sulfuric acid and bagasse system, wherein the concentration of the sulfuric acid solution is 3.0-3.5 mol/L, and the liquid-solid ratio of the sulfuric acid solution to the second filter residue is 19-21 mL: 1/g, the mass ratio of the second filter residue to the bagasse is 0.5-1: 1. under the condition, the leaching rate of metals Ni, Co and Mn in the waste lithium ion battery slag is more than 98 percent. Specifically, the volume of the sulfuric acid solution can be prepared to be 20-30mL according to the amount of filter residues.
In the reduction leaching, the reaction of reducing the high valence metal ions is as follows:
RCOH+Co3+＝RCO+H++Co2+(the former atom being a radical atom)
RCO+H2O＝RCOOH2
RCOOH2+Co3+＝RCOOH2 ++Co2+
2RCOOH2 ++O2-＝2RC00H+H2O
Also possible reactions are the autoxidation of aldehyde groups:
RCO+O2＝＝RCOOO
RCOOO+RCOH＝＝RCOOOH+RCO
RCOH+RCOOOH-＝2RCOOH。
further, the grain size of the bagasse is 0.5-0.6 mm, and the temperature of the reduction leaching reaction is 80-90 ℃. Thus, the reduction effect is better. The sucrose residue as a reducing agent has wide source, is low-carbon and environment-friendly, and avoids the generation of sulfur dioxide.
According to the recovery method, more than 90% of lithium can be leached out in advance by front-end pyrolysis water washing, and the leaching rate of cobalt, nickel and manganese is lower than 1%; the low-sulfur acid leaching can leach part of low-price nickel, cobalt and manganese, the use of a reducing agent is reduced, the cane bagasse used for subsequent reduction leaching is widely used as the reducing agent, the cost is low, the low carbon and environment protection are realized, no sulfur dioxide is generated, and the secondary utilization of the cane bagasse is realized. Therefore, the method has good application prospect.
The following description will be given with reference to specific examples.
Example 1
The method for recovering the anode material of the waste lithium ion battery comprises the following steps:
(1) taking 200g of black powder of the anode material of the waste lithium ion battery after the disassembly of the waste ternary battery, wherein the element content is shown in table 1;
TABLE 1
| Element(s) | Li | Co | Ni | Ca | Mg | Mn | Na | Cu |
| Content of raw Material (%) | 4.03 | 9.24 | 19.84 | 0.73 | 0.1 | 12.21 | 0.11 | 3.43 |
| Element(s) | Cr | Al | F | Cd | S | Zr | Zn | Fe |
| Content of raw Material (%) | 0.005 | 0.012 | 2.00 | 0.055 | 0.075 | 0.0036 | 0.011 | 0.19 |
Pyrolysis: putting the black powder into a tubular furnace (sodium bicarbonate is laid at the bottom of the black powder, and the mass ratio of the sodium bicarbonate to the black powder is 1: 2); the pyrolysis temperature is 600 ℃, and the time is 3 h.
(2) Washing, namely washing the pyrolyzed product with water, wherein the liquid-solid ratio of the washing is 10 g: 1 mL. The water washing temperature is 20 ℃, the time is 50min, and the stirring speed is 500 r/min. The washed solution was filtered. Obtaining a first filtrate and a first filter residue. The elemental content of the first filtrate is shown in table 2:
TABLE 2
| Element(s) | Li | Co | Ni | Mn |
| Concentration (g/L) | 3.69 | 0.032 | 0.042 | 0.012 |
(3) And performing acid leaching treatment on the first filter residue obtained after the water washing by using sulfuric acid with the pH value of 2-2.5, wherein the stirring speed is 500r/min, the temperature is 50 ℃, and the time is 1 h. And filtering after the reaction is finished to obtain a second filtrate and a second filter residue. The second filtrate is a low-price cobalt nickel manganese solution, and the element content is shown in table 3:
TABLE 3
| Element(s) | Li1+ | Co2+ | Ni2+ | Mn2+ |
| Concentration (g/L) | 0.12 | 1.36 | 3.62 | 2.36 |
(4) And the second filter residue is subjected to reduction leaching by adopting a sulfuric acid and bagasse system: specifically, a sulfuric acid solution with the concentration of 3.0mol/L is mixed with the second filter residue according to the liquid-solid ratio of 19mL/g, the adding amount of the bagasse is 100g, and the grain size of the bagasse is 0.50 mm. The reaction temperature is 80 ℃, and after the reaction is finished, filtering is carried out to obtain a third filtrate and a third filter residue; the third filtrate is a cobalt nickel manganese solution with high concentration, and the element content is shown in table 4:
TABLE 4
| Element(s) | Li1+ | Co2+ | Ni2+ | Mn2+ | Cu |
| Concentration (g/L) | 0.49 | 8.23 | 16.32 | 9.78 | / |
The first filtrate obtained by the recovery method is rich in most of lithium in the black powder of the anode material of the waste lithium ion battery, and can be used for recovering lithium; the third filtrate is rich in most of bivalent cobalt, nickel and manganese, and the second filtrate also contains a certain amount of bivalent cobalt, nickel and manganese, so that the second filtrate and the third filtrate can be used for recovering low-valence cobalt, nickel and manganese.
Example 2
The method for recovering the anode material of the waste lithium ion battery comprises the following steps:
(1) taking 100g of black powder of the anode material of the waste lithium ion battery obtained by disassembling the waste ternary battery, wherein the element content is shown in table 5;
TABLE 5
| Element(s) | Li | Co | Ni | Ca | Mg | Mn | Na | Cu |
| Content of raw Material (%) | 4.63 | 10.24 | 18.84 | 0.71 | 0.12 | 12.21 | 0.13 | 4.43 |
| Element(s) | Cr | Al | F | Cd | S | Zr | Zn | Fe |
| Content of raw Material (%) | 0.003 | 0.016 | 3.00 | 0.065 | 0.085 | 0.0038 | 0.02 | 0.20 |
Pyrolysis: putting the black powder into a tubular furnace (sodium bicarbonate is laid at the bottom of the black powder, and the mass ratio of the sodium bicarbonate to the black powder is 1: 2); the pyrolysis temperature is 700 ℃, and the time is 3 h.
(2) And (4) washing, namely washing the pyrolyzed product with water, wherein the liquid-solid ratio of the washing is 13 g/mL. The temperature of water washing is 25 ℃, the stirring speed is 550r/min, and the time is 60 min. The washed solution was filtered. Obtaining a first filtrate and a first filter residue. The elemental content of the first filtrate is shown in table 6:
TABLE 6
| Element(s) | Li | Co | Ni | Mn |
| Concentration (g/L) | 3.79 | 0.012 | 0.037 | 0.082 |
(3) And performing acid leaching treatment on the first filter residue obtained after the water washing by using sulfuric acid with the pH value of 2-2.5, wherein the stirring speed is 600r/min, the temperature is 60 ℃, and the reaction time is 2 hours. And filtering after the reaction is finished to obtain a second filtrate and a second filter residue. The second filtrate is a low-price cobalt nickel manganese solution, and the element content is shown in table 7:
TABLE 7
| Element(s) | Li1+ | Co2+ | Ni2+ | Mn2+ |
| Concentration (g/L) | 0.18 | 1.67 | 3.22 | 2.66 |
(4) And the second filter residue is subjected to reduction leaching by adopting a sulfuric acid and bagasse system: specifically, a sulfuric acid solution with the concentration of 3.5mol/L is mixed with the second filter residue according to the liquid-solid ratio of 19mL/g, the adding amount of the bagasse is 50g, and the grain size of the bagasse is 0.60 mm. The reaction temperature is 90 ℃, and after the reaction is finished, filtering is carried out to obtain a third filtrate and a third filter residue; the third filtrate is a cobalt nickel manganese solution with high concentration, and the element content is shown in table 8:
TABLE 8
| Element(s) | Li1+ | Co2+ | Ni2+ | Mn2+ | Cu |
| Concentration (g/L) | 0.56 | 9.21 | 17.16 | 9.38 | / |
The first filtrate obtained by the recovery method is rich in most of lithium in the black powder of the anode material of the waste lithium ion battery, and can be used for recovering lithium; the third filtrate is rich in most of bivalent cobalt, nickel and manganese, and the second filtrate also contains a certain amount of bivalent cobalt, nickel and manganese, so that the second filtrate and the third filtrate can be used for recovering low-valence cobalt, nickel and manganese.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A method for recovering a waste lithium ion battery anode material is characterized by comprising the following steps:
mixing the collected waste lithium ion battery anode material with sodium bicarbonate for pyrolysis treatment to obtain a pyrolysis product;
washing the pyrolysis product with water, and filtering to obtain a first filtrate and a first filter residue;
mixing the first filter residue with sulfuric acid with the pH value of 2-2.5 for acid leaching treatment, and then filtering to obtain a second filtrate and a second filter residue;
mixing the second filter residue and bagasse in a sulfuric acid solution for reduction leaching reaction, and then filtering to obtain a third filtrate and a third filter residue;
the first filtrate contains more than 90% of lithium metal in the waste lithium ion battery anode material, the second filtrate contains 1-5% of lithium metal and 1-4% of non-lithium metal in the waste lithium ion battery anode material, and the third filtrate contains more than 95% of non-lithium metal in the waste lithium ion battery anode material.
2. The recycling method of claim 1, wherein the waste lithium ion battery positive electrode material is a ternary positive electrode material, the non-lithium metal is divalent cobalt nickel manganese metal, the lithium concentration in the first filtrate is not less than 3.5g/L, the lithium concentration in the second filtrate is not more than 0.2g/L, the cobalt nickel manganese concentration is 7-8 g/L, and the cobalt nickel manganese concentration in the third filtrate is not less than 30 g/L.
3. The recycling method according to claim 1, wherein the spent lithium ion battery positive electrode material is laid on the sodium bicarbonate in the pyrolysis process.
4. The recycling method according to claim 3, wherein the pyrolysis treatment is carried out at a temperature of 600 to 700 ℃ for 3 to 4 hours.
5. The recovery method according to claim 1, wherein the liquid-solid ratio in the washing treatment is 10 to 15 mL/g.
6. The recovery method according to claim 5, wherein the stirring speed is 500 to 600r/min, the washing temperature is 20 to 50 ℃, and the washing time is 50 to 60 min.
7. The recovery method according to claim 1, wherein the stirring speed in the acid leaching treatment is 500 to 600r/min, the temperature is 50 to 60 ℃, and the time is 1 to 2 hours.
8. The recovery method according to any one of claims 1 to 7, wherein in the reduction leaching reaction, the concentration of the sulfuric acid solution is 3.0 to 3.5mol/L, the liquid-solid ratio of the sulfuric acid solution to the second filter residue is 19 to 21mL/g, and the mass ratio of the second filter residue to the bagasse is 0.5 to 1: 1.
9. the recovery method according to claim 8, wherein the bagasse has a particle size of 0.5 to 0.6 mm.
10. A recovery method as claimed in claim 8, characterised in that the temperature of the reductive leaching reaction is 80 to 90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236241.2A CN114069084A (en) | 2021-10-22 | 2021-10-22 | Method for recovering anode material of waste lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236241.2A CN114069084A (en) | 2021-10-22 | 2021-10-22 | Method for recovering anode material of waste lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114069084A true CN114069084A (en) | 2022-02-18 |
Family
ID=80235249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111236241.2A Pending CN114069084A (en) | 2021-10-22 | 2021-10-22 | Method for recovering anode material of waste lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114069084A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093095A1 (en) * | 2022-11-04 | 2024-05-10 | 广东邦普循环科技有限公司 | Reparative regeneration method for positive electrode material of alkali metal ion battery, positive electrode material, and use |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943911A (en) * | 2014-03-26 | 2014-07-23 | 四川长虹电器股份有限公司 | Method for comprehensively recycling waste lithium ion batteries |
| CN207637951U (en) * | 2017-12-01 | 2018-07-20 | 江西奥盛新能源有限公司 | A kind of battery positive/negative plate recycling device |
| CN110668506A (en) * | 2019-09-29 | 2020-01-10 | 昆明理工大学 | Method for recycling and regenerating lithium cobaltate from waste lithium ion battery |
| CN110923453A (en) * | 2019-11-29 | 2020-03-27 | 中南大学 | Method for recovering lithium from waste lithium ion battery |
| CN111484044A (en) * | 2020-04-26 | 2020-08-04 | 北京矿冶科技集团有限公司 | Method for extracting lithium in lithium battery waste at front end |
-
2021
- 2021-10-22 CN CN202111236241.2A patent/CN114069084A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943911A (en) * | 2014-03-26 | 2014-07-23 | 四川长虹电器股份有限公司 | Method for comprehensively recycling waste lithium ion batteries |
| CN207637951U (en) * | 2017-12-01 | 2018-07-20 | 江西奥盛新能源有限公司 | A kind of battery positive/negative plate recycling device |
| CN110668506A (en) * | 2019-09-29 | 2020-01-10 | 昆明理工大学 | Method for recycling and regenerating lithium cobaltate from waste lithium ion battery |
| CN110923453A (en) * | 2019-11-29 | 2020-03-27 | 中南大学 | Method for recovering lithium from waste lithium ion battery |
| CN111484044A (en) * | 2020-04-26 | 2020-08-04 | 北京矿冶科技集团有限公司 | Method for extracting lithium in lithium battery waste at front end |
Non-Patent Citations (1)
| Title |
|---|
| 孟冠军: "《硫酸——甘蔗渣体系浸出提取废旧锂离子电池中的钴》", 《广西大学学报(自然科学版)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093095A1 (en) * | 2022-11-04 | 2024-05-10 | 广东邦普循环科技有限公司 | Reparative regeneration method for positive electrode material of alkali metal ion battery, positive electrode material, and use |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109935922B (en) | Method for recovering valuable metals from waste lithium ion battery materials | |
| CN107017443B (en) | A method of the comprehensively recovering valuable metal from waste and old lithium ion battery | |
| CN112158894A (en) | Method for recovering anode material of waste lithium battery | |
| CN108550939B (en) | A method of selective recovery lithium and lithium carbonate is prepared from waste lithium cell | |
| US11316208B2 (en) | Process for recycling cobalt and nickel from lithium ion batteries | |
| CN110474123B (en) | Comprehensive recovery method of waste lithium iron phosphate battery positive electrode material | |
| CN109022793B (en) | Method for selectively leaching lithium from waste powder of cathode material containing at least one of cobalt, nickel and manganese | |
| CN108265178B (en) | A kind of processing method of cobalt metallurgy of nickel waste water slag | |
| CN109097581A (en) | The recovery method of valuable metal in waste and old nickel cobalt manganese lithium ion battery | |
| CN111254276A (en) | Method for selectively extracting valuable metals from waste lithium ion battery powder based on phase conversion of sodium reduction roasting | |
| CN111180819B (en) | Preparation method of battery-grade Ni-Co-Mn mixed solution and battery-grade Mn solution | |
| WO2023029573A1 (en) | Method for extracting lithium from waste lithium battery | |
| JP2024514966A (en) | Method for recovering valuable metals from used lithium-ion batteries | |
| CN115058605B (en) | Recovery method of waste lithium battery material | |
| CN114477240A (en) | Preparation method of battery-grade lithium hydroxide | |
| CN113957252A (en) | Method for selectively recovering valuable metals in waste lithium batteries | |
| CN112366381A (en) | Method for recovering lithium from waste lithium battery anode material and application | |
| CN114069084A (en) | Method for recovering anode material of waste lithium ion battery | |
| CN113584309A (en) | Method for separating manganese in ternary lithium ion battery anode leachate | |
| CN116411182A (en) | Method for selectively recovering lithium from lithium battery | |
| CN113481368B (en) | Method for leaching valuable metals from waste lithium cobaltate battery powder | |
| CN116590538A (en) | Method for preferentially extracting lithium from waste lithium battery | |
| CN112481492A (en) | Method for recovering valuable metals from waste lithium battery lithium cobaltate positive electrode material | |
| CN114614130A (en) | Method for high-selectivity recovery of waste lithium ion battery anode material assisted by ammonium salt in subcritical water | |
| CN114592126A (en) | Method for recovering anode material of waste lithium cobalt oxide battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220218 |