CN104617282A - Manufacturing method of nickel-based high-energy secondary battery negative electrode slurry - Google Patents
Manufacturing method of nickel-based high-energy secondary battery negative electrode slurry Download PDFInfo
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- CN104617282A CN104617282A CN201510083837.1A CN201510083837A CN104617282A CN 104617282 A CN104617282 A CN 104617282A CN 201510083837 A CN201510083837 A CN 201510083837A CN 104617282 A CN104617282 A CN 104617282A
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- powder
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000011267 electrode slurry Substances 0.000 title abstract 3
- 229910052759 nickel Inorganic materials 0.000 title abstract 2
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 14
- 239000001257 hydrogen Substances 0.000 claims abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 25
- 239000000853 adhesive Substances 0.000 claims description 22
- 230000001070 adhesive effect Effects 0.000 claims description 22
- 239000012752 auxiliary agent Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 15
- 239000004615 ingredient Substances 0.000 claims description 15
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 13
- 239000012153 distilled water Substances 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000001996 bearing alloy Substances 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 5
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 4
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 4
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 4
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 description 3
- 239000002932 luster Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000008240 homogeneous mixture Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/383—Hydrogen absorbing alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a manufacturing method of nickel-based high-energy secondary battery negative electrode slurry. According to the manufacturing method of the negative electrode slurry, a hydrogen storage alloy and a negative electrode auxiliary are added step by step, so that the stirring and dispersion of thematerial in the binder are facilitated, the cracking phenomenon which cannot be solved by the equipment can be solved and the consistency of the slurry of each batch is improved.
Description
Technical field
The present invention relates to the making of Ni-based secondary cell, particularly relate to a kind of manufacture method of Ni-based high-energy secondary battery cathode size.
Background technology
In the middle of the production process of battery, batching is one of committed step.Blending process is mixed according to a certain percentage the various components in slurry, is just coated with on a current collector uniformly, thus ensures the consistency of pole plate after being mixed with slurry.The CCP of batching is, the kind of mixing time and speed, jitter time and speed, electrode material and consumption; In current industrial production, do not adopt effective ways to control the consistency of every barrel of slurry, this shows that the conventional anode distribution used at present requires further improvement.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method of Ni-based high-energy secondary battery cathode size, effectively can improve the consistency of each batch of cathode size, solve the problem in background technology.
For achieving the above object, the present invention adopts following technical scheme:
A manufacture method for Ni-based high-energy secondary battery cathode size, to prepare one ton of described slurry for benchmark, comprises the following steps:
A). prepare adhesive, described adhesive is the aqueous solution of HPMC powder, and its mass percent is 1.5%-3%;
B). described adhesive is poured in blender, starts the frequency stirring that blender encloses with 550-650 per minute;
C). start after blender within 1-10 minute, point several times add negative pole auxiliary agent, then start the frequency that blender encloses with 850-950 per minute, the discrete lines speed of 7-8m/s, stir 1-1.5 hour; The raw material of described negative pole auxiliary agent is that one or more in manganese dioxide, fluorographite, cobalt oxide, nickel oxide, nickel powder, Graphene, carbon nano-tube mix;
D). hydrogen storing alloy powder is added blender with each 10-15 kilogram, adds rear stirring at every turn and within 20-25 minute, feed in raw material again, until after adding last defective material next time, the shovel end, once, continue the frequency of enclosing with 700-800 per minute again, the discrete lines speed of 6-7m/s, stir 1.5 hours;
E). add PTFE and active carbon, continue the frequency of enclosing with 550-650 per minute, the discrete lines speed of 4.5-5.5m/s, stir 0.5 hour; Wherein, described hydrogen bearing alloy, active carbon, PTFE and adhesive constitute the major ingredient of described cathode size, and their percentage by weight is: hydrogen bearing alloy 85.5%-92.5%, active carbon 1%-3%, PTFE1.5%, adhesive 4%-12%; The percentage by weight of described negative pole auxiliary agent and described cathode size major ingredient is: negative pole auxiliary agent 5%-10%, cathode size major ingredient 90%-95%.
As preferably, described step a comprises, described HPMC powder and distilled water are weighed for subsequent use by weight 1.5-3:100, distilled water is heated to 60-70 DEG C, then hot water is poured into blender, when water temperature drops to 45-50 DEG C, add HPMC powder, the frequency of enclosing with 650-750 per minute stirs 2 hours, shelve more than 8 hours for subsequent use.
As preferably, check in time in whipping process and process the dry powder remained at the bottom of blender bucket and on bucket wall and the slurry do not stirred evenly, keeping stirring to nothing caking.
The manufacture method of cathode size of the present invention, substep adds hydrogen bearing alloy and negative pole auxiliary agent, is conducive to material dispersed with stirring in a binder, effectively can solves the insurmountable caking phenomenon of equipment, improve the consistency of each batch of slurry.
Embodiment
Below in conjunction with embodiment 1-3, technical scheme of the present invention is described further, but is not limited to this explanation.
Embodiment 1:
A kind of Ni-based high-energy secondary battery cathode size, comprise cathode size major ingredient and negative pole auxiliary agent, and their percentage by weight is: cathode size major ingredient 90%, negative pole auxiliary agent 10%; Wherein, the raw material of described cathode size major ingredient forms and percentage by weight is: hydrogen bearing alloy 85.5%, active carbon 1%, PTFE(ptfe emulsion) 1.5%, adhesive 12%; Wherein, described adhesive is HPMC(hydroxypropyl methylcellulose) aqueous solution of powder, its mass percent is 3%; Wherein, the raw material of described negative pole auxiliary agent is manganese dioxide.
The manufacture method of described Ni-based high-energy secondary battery cathode size, to prepare one ton of described slurry for benchmark, comprises the following steps:
A). prepare described adhesive: weigh for subsequent use by described HPMC powder and distilled water by weight 3:100, distilled water is heated to 65 DEG C, then hot water is poured into blender, HPMC powder is added when water temperature drops to 45 DEG C, with per minute 700 circle frequency stir 2 hours, shelve more than 8 hours for subsequent use;
B). described adhesive is poured in blender, starts blender and stir with the frequency of 550 circles per minute;
C). start after blender in 7 minutes, point several times add described negative pole auxiliary agent, and then start blender with the frequency of 900 circles per minute, the discrete lines speed of 7m/s, stirs 1.2 hours;
D). then described hydrogen storing alloy powder is added blender with the amount of each 12 kilograms, add rear stirring at every turn and within 22 minutes, feed in raw material again, until after adding last defective material next time; the shovel end, once; continue with the frequency of 750 circles per minute, the discrete lines speed of 7m/s, stirs 1.5 hours again;
E). add described PTFE, continue with the frequency of 550 circles per minute, the discrete lines speed of 4.5m/s, stirs 0.5 hour, obtains slurry finished product.
Check in time in whipping process and process the dry powder remained at the bottom of blender bucket and on bucket wall and the slurry do not stirred evenly, keeping stirring to nothing caking.
By the cathode size obtained by this method, stable homogeneous, shelves half an hour still without precipitation, and sieves without difficulty, and when being coated with without deposit clumps phenomenon, obtained pole piece color and luster is homogeneous, without dark particle, without dry linting.
Embodiment 2:
A kind of Ni-based high-energy secondary battery cathode size, comprise cathode size major ingredient and negative pole auxiliary agent, and their percentage by weight is: cathode size major ingredient 95%, negative pole auxiliary agent 5%; Wherein, the raw material of described cathode size major ingredient forms and percentage by weight is: hydrogen bearing alloy 87.5%, active carbon 3%, PTFE(ptfe emulsion) 1.5%, adhesive 8%; Wherein, described adhesive is HPMC(hydroxypropyl methylcellulose) aqueous solution of powder, its mass percent is 1.5%; Wherein, the raw material of described negative pole auxiliary agent is the homogeneous mixture of fluorographite, cobalt oxide, nickel oxide, nickel powder.
The manufacture method of described Ni-based high-energy secondary battery cathode size, to prepare one ton of described slurry for benchmark, comprises the following steps:
A). prepare described adhesive: weigh for subsequent use by described HPMC powder and distilled water by weight 1.5:100, distilled water is heated to 60 DEG C, then hot water is poured into blender, HPMC powder is added when water temperature drops to 47 DEG C, with per minute 650 circle frequency stir 2 hours, shelve more than 8 hours for subsequent use;
B). described adhesive is poured in blender, starts blender and stir with the frequency of 600 circles per minute;
C). start after blender in 10 minutes, point several times add described negative pole auxiliary agent, and then start blender with the frequency of 850 circles per minute, the discrete lines speed of 7.5m/s, stirs 1 hour;
D). then described hydrogen storing alloy powder is added blender with the amount of each 10 kilograms; add rear stirring to feed in raw material again for 20 minutes at every turn next time; until after adding last defective material; the shovel end, once; continue with the frequency of 700 circles per minute again; the discrete lines speed of 6.5m/s, stirs 1.5 hours;
E). add described PTFE, continue with the frequency of 650 circles per minute, the discrete lines speed of 5.5m/s, stirs 0.5 hour, obtains slurry finished product.
Check in time in whipping process and process the dry powder remained at the bottom of blender bucket and on bucket wall and the slurry do not stirred evenly, keeping stirring to nothing caking.
By the cathode size obtained by this method, stable homogeneous, shelves half an hour still without precipitation, and sieves without difficulty, and when being coated with without deposit clumps phenomenon, obtained pole piece color and luster is homogeneous, without dark particle, without dry linting.
Embodiment 3:
A kind of Ni-based high-energy secondary battery cathode size, comprise cathode size major ingredient and negative pole auxiliary agent, and their percentage by weight is: cathode size major ingredient 93%, negative pole auxiliary agent 7%; Wherein, the raw material of described cathode size major ingredient forms and percentage by weight is: hydrogen bearing alloy 92.5%, active carbon 2%, PTFE(ptfe emulsion) 1.5%, adhesive 4%; Wherein, described adhesive is HPMC(hydroxypropyl methylcellulose) aqueous solution of powder, its mass percent is 2%; Wherein, the raw material of described negative pole auxiliary agent is the homogeneous mixture of manganese dioxide, fluorographite, cobalt oxide, nickel oxide, nickel powder, Graphene, carbon nano-tube.
The manufacture method of described Ni-based high-energy secondary battery cathode size, to prepare one ton of described slurry for benchmark, comprises the following steps:
A). prepare described adhesive: weigh for subsequent use by described HPMC powder and distilled water by weight 2:100, distilled water is heated to 70 DEG C, then hot water is poured into blender, HPMC powder is added when water temperature drops to 50 DEG C, with per minute 750 circle frequency stir 2 hours, shelve more than 8 hours for subsequent use;
B). described adhesive is poured in blender, starts blender and stir with the frequency of 650 circles per minute;
C). start after blender in 1 minute, evenly add described negative pole auxiliary agent, then start blender with the frequency of 950 circles per minute, the discrete lines speed of 8m/s, stirs 1.5 hours;
D). then described hydrogen storing alloy powder is added blender with the amount of each 15 kilograms, add rear stirring at every turn and within 25 minutes, feed in raw material again, until after adding last defective material next time; the shovel end, once; continue with the frequency of 800 circles per minute, the discrete lines speed of 6m/s, stirs 1.5 hours again;
E). add described PTFE, continue with the frequency of 600 circles per minute, the discrete lines speed of 5m/s, stirs 0.5 hour, obtains slurry finished product.
Check in time in whipping process and process the dry powder remained at the bottom of blender bucket and on bucket wall and the slurry do not stirred evenly, keeping stirring to nothing caking.
By the cathode size obtained by this method, stable homogeneous, shelves half an hour still without precipitation, and sieves without difficulty, and when being coated with without deposit clumps phenomenon, obtained pole piece color and luster is homogeneous, without dark particle, without dry linting.
Claims (3)
1. a manufacture method for Ni-based high-energy secondary battery cathode size, to prepare one ton of described slurry for benchmark, comprises the following steps:
A). prepare adhesive, described adhesive is the aqueous solution of HPMC powder, and its mass percent is 1.5%-3%;
B). described adhesive is poured in blender, starts the frequency stirring that blender encloses with 550-650 per minute;
C). start after blender within 1-10 minute, point several times add negative pole auxiliary agent, then start the frequency that blender encloses with 850-950 per minute, the discrete lines speed of 7-8m/s, stir 1-1.5 hour; The raw material of described negative pole auxiliary agent is that one or more in manganese dioxide, fluorographite, cobalt oxide, nickel oxide, nickel powder, Graphene, carbon nano-tube mix;
D). hydrogen storing alloy powder is added blender with each 10-15 kilogram, adds rear stirring at every turn and within 20-25 minute, feed in raw material again, until after adding last defective material next time, the shovel end, once, continue the frequency of enclosing with 700-800 per minute again, the discrete lines speed of 6-7m/s, stir 1.5 hours;
E). add PTFE and active carbon, continue the frequency of enclosing with 550-650 per minute, the discrete lines speed of 4.5-5.5m/s, stir 0.5 hour; Wherein, described hydrogen bearing alloy, active carbon, PTFE and adhesive constitute the major ingredient of described cathode size, and their percentage by weight is: hydrogen bearing alloy 85.5%-92.5%, active carbon 1%-3%, PTFE1.5%, adhesive 4%-12%; The percentage by weight of described negative pole auxiliary agent and described cathode size major ingredient is: negative pole auxiliary agent 5%-10%, cathode size major ingredient 90%-95%.
2. the manufacture method of a kind of Ni-based high-energy secondary battery cathode size as claimed in claim 1, it is characterized in that, described step a comprises, described HPMC powder and distilled water are weighed for subsequent use by weight 1.5-3:100, distilled water is heated to 60-70 DEG C, then pours hot water into blender, when water temperature drops to 45 ~ 50 DEG C, add HPMC powder, the frequency of enclosing with 650-750 per minute stirs 2 hours, shelve more than 8 hours for subsequent use.
3. the manufacture method of a kind of Ni-based high-energy secondary battery cathode size as claimed in claim 1, it is characterized in that, check in time in whipping process and process the dry powder remained at the bottom of blender bucket and on bucket wall and the slurry do not stirred evenly, keeping stirring to nothing caking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083837.1A CN104617282B (en) | 2015-02-16 | 2015-02-16 | A kind of manufacture method of Ni-based high-energy secondary battery cathode size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083837.1A CN104617282B (en) | 2015-02-16 | 2015-02-16 | A kind of manufacture method of Ni-based high-energy secondary battery cathode size |
Publications (2)
| Publication Number | Publication Date |
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| CN104617282A true CN104617282A (en) | 2015-05-13 |
| CN104617282B CN104617282B (en) | 2017-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786676A (en) * | 2019-01-31 | 2019-05-21 | 浙江霖润新能源科技有限公司 | A kind of production method of nickel-hydrogen high-power anode of secondary battery slurry |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165947A (en) * | 2007-09-17 | 2008-04-23 | 广东工业大学 | Carbon nanometer composite nickel-hydrogen power battery cathode sheet preparation method and its uses |
| CN101577331A (en) * | 2009-06-09 | 2009-11-11 | 蔡铭湛 | Method for manufacturing nickel electrode of alkaline accumulator |
| CN104269532A (en) * | 2014-09-05 | 2015-01-07 | 冯祖勇 | Preparation method of negative pole of graphene-based high-capacity nickel-hydrogen power battery |
-
2015
- 2015-02-16 CN CN201510083837.1A patent/CN104617282B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165947A (en) * | 2007-09-17 | 2008-04-23 | 广东工业大学 | Carbon nanometer composite nickel-hydrogen power battery cathode sheet preparation method and its uses |
| CN101577331A (en) * | 2009-06-09 | 2009-11-11 | 蔡铭湛 | Method for manufacturing nickel electrode of alkaline accumulator |
| CN104269532A (en) * | 2014-09-05 | 2015-01-07 | 冯祖勇 | Preparation method of negative pole of graphene-based high-capacity nickel-hydrogen power battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786676A (en) * | 2019-01-31 | 2019-05-21 | 浙江霖润新能源科技有限公司 | A kind of production method of nickel-hydrogen high-power anode of secondary battery slurry |
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| CN104617282B (en) | 2017-03-15 |
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