CN112687883A - Preparation process of soft package battery - Google Patents
Preparation process of soft package battery Download PDFInfo
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- CN112687883A CN112687883A CN202011581895.4A CN202011581895A CN112687883A CN 112687883 A CN112687883 A CN 112687883A CN 202011581895 A CN202011581895 A CN 202011581895A CN 112687883 A CN112687883 A CN 112687883A
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a preparation process of a soft package battery, which comprises the following raw materials in parts by weight: 100-104 parts of NMP, 5.8-6 parts of PVDF, 30-40 parts of conductive slurry, 1.5-1.7 parts of assistant A, 200 parts of spherical nickel 180-. The soft package battery adopts a zinc-nickel structure, has better conductivity and longer service life, is simple in preparation process, is suitable for large-scale production, follows strict capacity grading screening, ensures the quality of the battery, adopts a strict sealing process, does not cause liquid leakage, only generates bulges under the condition of potential safety hazard, does not cause explosion, and has higher safety.
Description
Technical Field
The invention relates to the technical field of soft package batteries, in particular to a preparation process of a soft package battery.
Background
Pouch cells refer to devices that convert chemical energy into electrical energy in a portion of the space of a cup, tank, or other container or composite container that contains an electrolyte solution and metal electrodes to produce an electrical current. Has a positive electrode and a negative electrode. With the advancement of technology, batteries generally refer to small devices that can generate electrical energy. Such as a solar cell. The performance parameters of the battery are mainly electromotive force, capacity, specific energy and resistance. The battery is used as an energy source, so that the current which has stable voltage and current, is stably supplied for a long time and is slightly influenced by the outside can be obtained, the battery has a simple structure, is convenient to carry, is simple and easy to operate, is not influenced by the outside climate and temperature, has stable and reliable performance, and plays a great role in various aspects of modern social life; the existing battery has large potential safety hazard, and explosion can be caused by careless use of the battery.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation process of a soft package battery.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a laminate polymer battery, this laminate polymer battery comprises the parts by weight of following raw materials: 100-104 parts of NMP, 5.8-6 parts of PVDF, 30-40 parts of conductive slurry, 1.5-1.7 parts of assistant A, 200 parts of spherical nickel 180-.
A preparation process of a soft package battery comprises the following steps:
s01: preparing the positive conductive adhesive: putting NMP and PVDF into a glue making machine, stirring at the rotating speed of 45-55Hz for 190min, then adding the aid A into the glue making machine, stirring again according to the parameters, and preparing the conductive adhesive at the temperature of 15-40 ℃ in the two-time stirrer;
s02: preparing anode slurry: placing the conductive adhesive and the conductive slurry in S01 in a stirrer at the rotation speed of 1300-1500rpm for 20-30min, then adding the spherical nickel twice, wherein the stirring conditions of 700-900rpm and 30-40min are changed into 1300-1500rpm and 50-70min, and finally adding SBR at the stirring conditions of 400-600rpm and 25-35min, wherein the temperature of the processes is 15-45 ℃ to prepare the anode material;
s03: preparing a negative conductive adhesive: putting deionized water and CMC into a stirring tank for stirring at the rotation speed of 790-810rpm for 110-130min, and the temperature in the stirring tank is 15-40 ℃ to prepare the conductive adhesive;
s04: preparing anode slurry: placing the conductive adhesive and the auxiliary agent B in S03 in a stirring tank at the rotation speed of 900-;
s05: filtering, namely filtering the positive electrode ingredients and the negative electrode ingredients by using a screen with 150-180 meshes;
s06: coating, coating the positive electrode slurry on the nickel foil, wherein the surface density of the nickel foil is 32-34g/m2Coating times of 6-8 times, temperature of 80-140 deg.C, single surface density of 19 x 10-3g/cm2-19.4*10-3g/cm2The coating speed is 10-30 m/min;
coating a negative electrode, namely coating negative electrode slurry on a zinc foil, wherein the surface density of the zinc foil is 70-74g/m2Coating times of 6-8 times, temperature of 95-145 ℃, single-side surface density of 9 x 10-3g/cm2-10*10-3g/cm2The coating speed is 20-40 m/min;
s07: manufacturing → laminating → welding the anode and cathode lugs → coating the battery core;
s08: baking the battery cell: setting the internal temperature of the oven to be 90-100 ℃ on the front side and 85-95 ℃ on the side, and baking for 17-19h, wherein the water content of the positive electrode is less than 450ppm, and the water content of the negative electrode is less than 250 ppm;
s09: liquid injection → formation → air extraction → post-treatment → flat pressing → secondary air extraction → charge separation → preparation completion;
preferably, the spherical nickel is charged in step S02 in a ratio of 3:2 in two times.
Preferably, the ratio of zinc oxide charged in step S04 is 10:7 in two consecutive charges.
Compared with the prior art, the invention has the beneficial effects that: the soft package battery adopts a zinc-nickel structure, has better conductivity and longer service life, is simple in preparation process, is suitable for large-scale production, follows strict capacity grading screening, ensures the quality of the battery, adopts a strict sealing process, does not cause liquid leakage, only generates bulges under the condition of potential safety hazard, does not cause explosion, and has higher safety.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
The utility model provides a laminate polymer battery, this laminate polymer battery comprises the parts by weight of following raw materials: 100-104 parts of NMP, 5.8 parts of PVDF (polyvinylidene fluoride), 30 parts of conductive slurry, 1.5 parts of an auxiliary agent A, 180 parts of spherical nickel, 160 parts of deionized water, 3 parts of CMC (carboxy methyl cellulose), 7 parts of an auxiliary agent B, 190 parts of zinc oxide and 18 parts of SBR.
A preparation process of a soft package battery comprises the following steps:
s01: preparing the positive conductive adhesive: putting NMP and PVDF into a glue making machine, stirring at the rotating speed of 45Hz for 170min, then adding the aid A into the glue making machine, stirring again according to the parameters, and preparing the conductive adhesive at the temperature of 15 ℃ in the two-time stirrer;
s02: preparing anode slurry: placing the conductive adhesive and the conductive slurry in the S01 in a stirrer at the rotating speed of 1300rpm for 20min, then adding the spherical nickel twice, wherein the stirring condition of the two times is changed from 700rpm, the time of 30min to 1300rpm, the time of 50min, and finally adding SBR, the stirring condition is 400rpm, the time of 25min, and the temperature of the above process is 15 ℃ to prepare the anode batch;
s03: preparing a negative conductive adhesive: putting deionized water and CMC into a stirring tank, stirring at the rotation speed of 790rpm for 110min, and controlling the temperature in the stirring tank to be 15 ℃ to prepare conductive adhesive;
s04: preparing anode slurry: placing the conductive adhesive and the auxiliary agent B in the step S03 in a stirring tank at the rotating speed of 900rpm for 110min, then adding zinc oxide twice, wherein the stirring conditions for two times are changed from 950rpm to 1200rpm from 25min for 170min, and finally adding NMP, the stirring conditions are 1300rpm and 15min, the internal air pressure is lower than-0.095 MPa, the temperature in the above process is 15 ℃, and preparing a negative electrode ingredient;
s05: filtering, namely filtering the positive electrode ingredients and the negative electrode ingredients by using a 150-mesh screen;
s06: coating, coating a positive electrode, coating positive electrode slurry on a nickel foil, wherein the surface density of the nickel foil is 32g/m2Coating times 6 times, temperature 80 ℃, single-side surface density 19 x 10-3g/cm2Coating speed is 10 m/min;
coating a negative electrode, namely coating negative electrode slurry on a zinc foil, wherein the surface density of the zinc foil is 70g/m2Coating times 6 times, temperature 95 ℃, single-side surface density 9 x 10-3g/cm2Coating speed is 20 m/min;
s07: manufacturing → laminating → welding the anode and cathode lugs → coating the battery core;
s08: baking the battery cell: setting the internal temperature of the oven to be 90 ℃ on the front side and 85 ℃ on the side surface, and baking for 17 hours, wherein the water content of the positive electrode is less than 450ppm, and the water content of the negative electrode is less than 250 ppm;
s09: liquid injection → formation → air extraction → post-treatment → flat pressing → secondary air extraction → charge separation → preparation completion;
the ratio of spherical nickel charged in the two preceding and succeeding steps in step S02 is 3:2, and the ratio of zinc oxide charged in the two preceding and succeeding steps in step S04 is 10: 7.
Example 2
The utility model provides a laminate polymer battery, this laminate polymer battery comprises the parts by weight of following raw materials: NMP102 parts, PVDF5.9 parts, conductive slurry 35 parts, assistant A1.6 parts, spherical nickel 190 parts, deionized water 165 parts, CMC3.5 parts, assistant B7.5 parts, zinc oxide 200 parts, and SBR20 parts.
A preparation process of a soft package battery comprises the following steps:
s01: preparing the positive conductive adhesive: putting NMP and PVDF into a glue making machine, stirring at the rotating speed of 50Hz for 180min, then adding the aid A into the glue making machine, stirring again according to the parameters, and preparing the conductive adhesive at the temperature of 22.5 ℃ in the two-time stirrer;
s02: preparing anode slurry: placing the conductive adhesive and the conductive slurry in the S01 in a stirrer at the rotating speed of 1400rpm for 25min, then adding the spherical nickel twice, wherein the stirring condition of the two times is changed from 800rpm, the time of 35min to 1400rpm, the time of 60min, and finally adding SBR, the stirring condition is 500rpm, the time of 30min, and the temperature of the above process is 30 ℃ to prepare the anode batch;
s03: preparing a negative conductive adhesive: putting deionized water and CMC into a stirring tank, stirring at 800rpm for 120min, and making into conductive adhesive at 22.5 deg.C;
s04: preparing anode slurry: placing the conductive adhesive and the auxiliary agent B in the S03 in a stirring tank at the rotating speed of 1000rpm for 120min, then adding zinc oxide twice, wherein the stirring condition of the two times is changed from 1000rpm to 1300rpm when the time is 30min and is 180min, and finally adding NMP, the stirring condition is 1400rpm and is 20min, the internal air pressure is lower than-0.095 MPa, the temperature in the above process is 30 ℃, and preparing a negative electrode ingredient;
s05: filtering, namely filtering the positive electrode ingredients and the negative electrode ingredients by using a 165-mesh screen;
s06: coating, coating a positive electrode, coating positive electrode slurry on a nickel foil, wherein the surface density of the nickel foil is 33g/m2Coating times 7 times, temperature 110 ℃, single-side surface density 19.2 x 10-3g/cm2Coating speed is 20 m/min;
coating a negative electrode, namely coating negative electrode slurry on a zinc foil, wherein the surface density of the zinc foil is 72g/m2Coating times 7 times, temperature 120 ℃, single-side surface density 9.5 x 10-3g/cm2The coating speed is 30 m/min;
s07: manufacturing → laminating → welding the anode and cathode lugs → coating the battery core;
s08: baking the battery cell: setting the front side temperature and the side surface temperature of the oven at 95 ℃, the baking time at 18h, the water content of the anode less than 450ppm and the water content of the cathode less than 250 ppm;
s09: liquid injection → formation → air extraction → post-treatment → flat pressing → secondary air extraction → charge separation → preparation completion;
the ratio of spherical nickel charged in the two preceding and succeeding steps in step S02 is 3:2, and the ratio of zinc oxide charged in the two preceding and succeeding steps in step S04 is 10: 7.
Example 3
The utility model provides a laminate polymer battery, this laminate polymer battery comprises the parts by weight of following raw materials: 104 parts of NMP, 6 parts of PVDF, 40 parts of conductive slurry, 1.7 parts of assistant A, 200 parts of spherical nickel, 170 parts of deionized water, 4 parts of CMC, 8 parts of assistant B, 210 parts of zinc oxide and 22 parts of SBR.
A preparation process of a soft package battery comprises the following steps:
s01: preparing the positive conductive adhesive: putting NMP and PVDF into a glue making machine, stirring at the rotating speed of 55Hz for 190min, then adding the aid A into the glue making machine, stirring again according to the parameters, and preparing the conductive adhesive at the temperature of 40 ℃ in the two-time stirrer;
s02: preparing anode slurry: placing the conductive adhesive and the conductive slurry in the S01 in a stirrer at the rotating speed of 1500rpm for 30min, then adding the spherical nickel twice, wherein the stirring condition of the two times is changed from 900rpm, the time of 40min to 1500rpm, the time of 70min, and finally adding SBR, the stirring condition is 600rpm, the time of 35min, and the temperature of the above process is 45 ℃ to prepare the anode material;
s03: preparing a negative conductive adhesive: putting deionized water and CMC into a stirring tank, stirring at a rotation speed of 810rpm for 130min, and making into conductive adhesive at a temperature of 40 ℃ in the stirring tank;
s04: preparing anode slurry: placing the conductive adhesive and the auxiliary agent B in the S03 in a stirring tank at the rotating speed of 1100rpm for 130min, then adding zinc oxide twice, wherein the stirring conditions for twice are 1050rpm, the time for 35min is changed into 1400rpm, the time for 190min, and finally adding NMP, the stirring conditions are 1500rpm and 25min, the internal air pressure is lower than-0.095 MPa, the temperature of the processes is 45 ℃, and preparing a negative electrode ingredient;
s05: filtering, namely filtering the positive electrode ingredients and the negative electrode ingredients by using a 180-mesh screen;
s06: coating, coating a positive electrode, coating positive electrode slurry on a nickel foil, wherein the surface density of the nickel foil is 34g/m2Coating times 8 times, temperature 140 ℃, single-side surface density 19.4 x 10-3g/cm2The coating speed is 30 m/min;
coating a negative electrode, namely coating negative electrode slurry on a zinc foil, wherein the surface density of the zinc foil is 74g/m2Coating times 8 times, temperature 145 ℃, single-side surface density 10 x 10-3g/cm2Coating speed is 40 m/min;
s07: manufacturing → laminating → welding the anode and cathode lugs → coating the battery core;
s08: baking the battery cell: setting the internal temperature of the oven to be 100 ℃ on the front side and 95 ℃ on the side, and baking for 19 hours, wherein the water content of the positive electrode is less than 450ppm, and the water content of the negative electrode is less than 250 ppm;
s09: liquid injection → formation → air extraction → post-treatment → flat pressing → secondary air extraction → charge separation → preparation completion;
the ratio of spherical nickel charged in the two preceding and succeeding steps in step S02 is 3:2, and the ratio of zinc oxide charged in the two preceding and succeeding steps in step S04 is 10: 7.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The soft package battery is characterized by comprising the following raw materials in parts by weight: 100-104 parts of NMP, 5.8-6 parts of PVDF, 30-40 parts of conductive slurry, 1.5-1.7 parts of assistant A, 200 parts of spherical nickel 180-.
2. The soft package battery according to claim 1, which is characterized by comprising the following raw materials in parts by weight: NMP102 parts, PVDF5.9 parts, conductive slurry 35 parts, assistant A1.6 parts, spherical nickel 190 parts, deionized water 165 parts, CMC3.5 parts, assistant B7.5 parts, zinc oxide 200 parts, and SBR20 parts.
3. The manufacturing process of the laminate battery according to claim 1 or 2, wherein the manufacturing process comprises the following steps:
s01: preparing the positive conductive adhesive: putting NMP and PVDF into a glue making machine, stirring at the rotating speed of 45-55Hz for 190min, then adding the aid A into the glue making machine, stirring again according to the parameters, and preparing the conductive adhesive at the temperature of 15-40 ℃ in the two-time stirrer;
s02: preparing anode slurry: placing the conductive adhesive and the conductive slurry in S01 in a stirrer at the rotation speed of 1300-1500rpm for 20-30min, then adding the spherical nickel twice, wherein the stirring conditions of 700-900rpm and 30-40min are changed into 1300-1500rpm and 50-70min, and finally adding SBR at the stirring conditions of 400-600rpm and 25-35min, wherein the temperature of the processes is 15-45 ℃ to prepare the anode material;
s03: preparing a negative conductive adhesive: putting deionized water and CMC into a stirring tank for stirring at the rotation speed of 790-810rpm for 110-130min, and the temperature in the stirring tank is 15-40 ℃ to prepare the conductive adhesive;
s04: preparing anode slurry: placing the conductive adhesive and the auxiliary agent B in S03 in a stirring tank at the rotation speed of 900-;
s05: filtering, namely filtering the positive electrode ingredients and the negative electrode ingredients by using a screen with 150-180 meshes;
s06: coating, coating the positive electrode slurry on the nickel foil, wherein the surface density of the nickel foil is 32-34g/m2Coating times of 6-8 times, temperature of 80-140 deg.C, single surface density of 19 x 10-3g/cm2-19.4*10-3g/cm2The coating speed is 10-30 m/min;
coating a negative electrode, namely coating negative electrode slurry on a zinc foil, wherein the surface density of the zinc foil is 70-74g/m2Coating times of 6-8 times, temperature of 95-145 ℃, single-side surface density of 9 x 10-3g/cm2-10*10-3g/cm2The coating speed is 20-40 m/min;
s07: manufacturing → laminating → welding the anode and cathode lugs → coating the battery core;
s08: baking the battery cell: setting the internal temperature of the oven to be 90-100 ℃ on the front side and 85-95 ℃ on the side, and baking for 17-19h, wherein the water content of the positive electrode is less than 450ppm, and the water content of the negative electrode is less than 250 ppm;
s09: liquid injection → formation → air extraction → post treatment → flat pressing → secondary air extraction → charge separation → preparation is completed.
4. The manufacturing process of the soft-package battery according to claim 3, wherein the ratio of spherical nickel added in the step S02 is 3: 2.
5. The manufacturing process of the soft-package battery according to claim 4, wherein the ratio of zinc oxide added in step S04 in two times is 10: 7.
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| CN202011581895.4A CN112687883A (en) | 2020-12-28 | 2020-12-28 | Preparation process of soft package battery |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024994A (en) * | 2010-11-30 | 2011-04-20 | 辽宁九夷三普电池有限公司 | Nickel-zinc secondary battery and preparation method thereof |
| CN110085826A (en) * | 2019-04-22 | 2019-08-02 | 双登集团股份有限公司 | Lithium ion battery anode glue size substep homogenate technique |
| CN111048846A (en) * | 2019-12-18 | 2020-04-21 | 陈发生 | Nickel-zinc battery |
| CN111584943A (en) * | 2020-06-15 | 2020-08-25 | 湖北亿纬动力有限公司 | Preparation method of soft package lithium ion battery and soft package lithium ion battery |
-
2020
- 2020-12-28 CN CN202011581895.4A patent/CN112687883A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024994A (en) * | 2010-11-30 | 2011-04-20 | 辽宁九夷三普电池有限公司 | Nickel-zinc secondary battery and preparation method thereof |
| CN110085826A (en) * | 2019-04-22 | 2019-08-02 | 双登集团股份有限公司 | Lithium ion battery anode glue size substep homogenate technique |
| CN111048846A (en) * | 2019-12-18 | 2020-04-21 | 陈发生 | Nickel-zinc battery |
| CN111584943A (en) * | 2020-06-15 | 2020-08-25 | 湖北亿纬动力有限公司 | Preparation method of soft package lithium ion battery and soft package lithium ion battery |
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Application publication date: 20210420 |