CN106784848A - Insulating coating composition, the preparation method of insulating coating, positive plate and lithium ion battery - Google Patents
Insulating coating composition, the preparation method of insulating coating, positive plate and lithium ion battery Download PDFInfo
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- CN106784848A CN106784848A CN201710036571.4A CN201710036571A CN106784848A CN 106784848 A CN106784848 A CN 106784848A CN 201710036571 A CN201710036571 A CN 201710036571A CN 106784848 A CN106784848 A CN 106784848A
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- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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
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- 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
- H01M4/621—Binders
- H01M4/622—Binders being polymers
- H01M4/623—Binders being polymers fluorinated polymers
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to Material Field, specifically, a kind of insulating coating composition, the preparation method of insulating coating, positive plate and lithium ion battery are disclosed, wherein, the composition includes insulating materials, binding agent and solvent.The present invention is mixed to prepare insulating coating by by insulating materials, binding agent and solvent, then insulating coating obtained above and anode sizing agent and/or cathode size are coated on battery pole piece simultaneously, the battery pole piece blank for being coated with this insulating coating is punched again then, the burr of battery pole piece that is obtained after being punched in this way and drop off situation and can be controlled effectively, solve the problems, such as that short circuit easily occurs in obtained lithium ion battery.
Description
Technical field
The present invention relates to Material Field, in particular it relates to the preparation method of insulating coating composition, insulating coating, positive pole
Piece and lithium ion battery.
Background technology
It is the main force of current new-energy automobile using the pure electric vehicle of lithium-ion-power cell, and restricts pure electronic at present
Two big bottlenecks of development of automobile are the safety problem and energy density problem of lithium ion battery.In order to further improve lithium ion
The energy density of electrokinetic cell and the performance of improvement lithium-ion-power cell, many electrokinetic cell producers use coiled lithium ion
Battery production technology.But the preparation technology of coiled lithium ion battery is related to pole piece clicking technique, and is used for the mould being punched
Tool also increases therewith with the increase of frequency of usage, its generation burrs on edges and the risk for dropping off.If battery pole piece is in punching
During there is burr, then can cause battery occur in charge and discharge process positive/negative plate expansion and cause extruding, and then occur
Burr drops off puncture barrier film and is short-circuited.
Therefore it provides one kind can effectively prevent obtained lithium ion battery from producing burr and dropping off, greatly improve obtained
The insulating coating composition of the performance of lithium ion battery, the preparation method of insulating coating, positive plate and lithium ion battery are
The problem of urgent need to resolve of the present invention.
The content of the invention
For above-mentioned prior art, it is an object of the invention to overcome battery pole piece in the prior art to go out in blanking process
Existing burr, then can cause battery to occur positive/negative plate expansion in charge and discharge process and cause extruding, and then burr occur or fall
Material pierces through barrier film and the problem being short-circuited, and can effectively prevent obtained lithium ion battery from producing burr so as to provide one kind
And drop off, greatly improve the insulating coating composition of the performance of obtained lithium ion battery, the preparation method of insulating coating,
Positive plate and lithium ion battery.
To achieve these goals, the invention provides a kind of insulating coating composition, wherein, the composition includes exhausted
Edge material, binding agent and solvent.
Present invention also offers a kind of preparation method of insulating coating, wherein, the insulating coating is by group described above
Compound is obtained.
Present invention also offers a kind of positive plate, wherein, the positive plate is included according to preparation method system described above
The insulating coating for obtaining.
Present invention also offers a kind of lithium ion battery, wherein, the lithium ion battery include according to it is described above just
Pole piece.
By above-mentioned technical proposal, the present invention is mixed to prepare insulating coating by by insulating materials, binding agent and solvent, and
Insulating coating obtained above and anode sizing agent and/or cathode size are coated on battery pole piece simultaneously afterwards, then again to applying
The battery pole piece blank for being covered with this insulating coating is punched, the burr of battery pole piece that is obtained after being punched in this way and
The situation of dropping off can be controlled effectively, and solve the problems, such as that short circuit easily occurs in obtained lithium ion battery.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with following tool
Body implementation method is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the aluminium foil for being coated with insulating coating and anode sizing agent；
Fig. 2 is obtained positive plate after punching.
Description of reference numerals
1- aluminium foil 2- insulating coatings
3- insulating coatings and anode sizing agent coincidence part 4- anode sizing agents.
Specific embodiment
Specific embodiment of the invention is described in detail below.It should be appreciated that described herein specific
Implementation method is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of insulating coating composition, wherein, the composition includes insulating materials, binding agent and molten
Agent.
Above-mentioned design is mixed to prepare insulating coating by by insulating materials, binding agent and solvent, then will be obtained above
Insulating coating is coated on battery pole piece simultaneously with anode sizing agent and/or cathode size, then again to being coated with this insulating coating
Battery pole piece blank be punched, the burr of battery pole piece that is obtained after being punched in this way and drop off situation and can obtain
Effective control, solves the problems, such as that short circuit easily occurs in obtained lithium ion battery.
The insulating materials, the binding agent and the solvent can be adjusted according to being actually needed, for example, in this hair
It is bright it is a kind of preferred embodiment in, in order to further improve the insulating properties of obtained insulating coating, adhesive property and
Processing characteristics (for example, die-cutting performance etc.) so that obtained insulating coating can preferably be punched out, after further reducing punching
Burr the problems such as, on the basis of the gross weight of the composition, the content of the insulating materials is 30 weight %-50 weights
Amount %, the content of the binding agent is 2 weight %-5 weight %, and the content of the solvent is 48 weight %-68 weight %.
Here insulating materials can be insulating materials commonly used in the art, for example, one kind is preferred embodiment
In, the insulating materials can select to be ceramic material.Certainly, ceramic material here can be pottery commonly used in the art
Porcelain type, for example, can be silicon carbide ceramics, silicon nitride ceramics etc., certainly, in the implementation method being more highly preferred to, in order to more preferable
Prevent from occurring burr in pole piece blanking process and drop off phenomenon, preferably the mould cutter head being punched is protected, improve mould
Tool cutter head service life, the insulating materials can be further selected as aluminum oxide and/or boehmite.By using aluminum oxide
And/or boehmite, so as to improve insulating coating overall compactness, finish, cool-hot fatigue, fracture toughness, creep resistance
Energy and anti-wear performance etc..It is further preferred that the particle diameter of the aluminum oxide and/or the boehmite is not more than 1 μm.
Similarly, binding agent here can be type commonly used in the art, for example, the binding agent can be selected from
Polyvinyl alcohol, polytetrafluoroethylene (PTFE), sodium carboxymethylcellulose, TPO binding agent and Viton etc., certainly, of the invention
In a kind of implementation method being more highly preferred to, occurs burr when preventing pole piece to be die cut to further improve obtained insulating coating
And the effect for dropping off, the binding agent can be further selected as Kynoar.
Certainly, in order to adhesive property is better achieved, and the obtained insulating coating of raising occurs when preventing pole piece to be die cut
Burr and the effect for dropping off, the Kynoar can be further defined to its intrinsic viscosity and be not less than 2.2dl/g.
Here solvent can also select to be type commonly used in the art, for example, can select for ethylene carbonate,
Propene carbonate etc., certainly, in the implementation method being more highly preferred to, the solvent can be further selected as N- crassitudes
Ketone.
Present invention also offers a kind of preparation method of insulating coating, wherein, the insulating coating is by group described above
Compound is obtained.The preparation method can be conventional mixing, for example, being directly stirred mixing etc..
Certainly, in a kind of implementation method being more highly preferred to, lithium is being coated in order to further improve obtained insulating coating
Die-cutting performance after ion battery, the preparation method includes：
1) binding agent and Part I solvent are mixed, glue is obtained；
2) by step 1) in obtained glue and insulating materials mixing, the young material of coating is obtained；
3) by step 2) in the young material of obtained coating and the mixing of Part II solvent, insulating coating is obtained；
Wherein, on the basis of the gross weight of the solvent, the consumption of the Part I solvent is 80 weight %-90 weights
Amount %, the consumption of the Part II solvent is 10 weight %-20 weight %.
Step 1) in glue can directly be used upon configuration, certainly, in a kind of preferred embodiment party of the invention
In formula, in order that obtained insulating coating processing characteristics more preferably, step 1) in can also include obtained glue is placed in temperature
Spend to place 120-300min under conditions of 10-30 DEG C.
In further preferred embodiment, step 3) in can also include the sieving of obtained insulating coating, and sieving
Sieve aperture be 120-150 mesh.
Mixed process can be mode commonly used in the art, for example, in a preferred embodiment, step 1)
In be mixed into stirring mixing, stir speed (S.S.) is 1200-1500r/min, and mixing time is 120-180min；And/or
Step 2) in be mixed into stirring mixing, stir speed (S.S.) is 1500-2000r/min, and mixing time is 240-360min；
And/or
Step 3) in be mixed into stirring mixing, stir speed (S.S.) is 1500-2000r/min, and mixing time is 30-60min.
Present invention also offers a kind of positive plate, wherein, the positive plate is included according to preparation method system described above
The insulating coating for obtaining.
Certainly, the preparation method of positive plate here can be with specific as follows：Insulating coating and anode sizing agent are coated on just
Pole sheet metal surface；And/or insulating coating and cathode size are coated on negative metal piece surface.Will insulating coating and slurry
Sheet metal surface is coated on, as shown in figure 1, the aluminium foil to be coated with insulating coating and anode sizing agent.
In order to further make obtained positive plate blank and negative plate the blank burr and to drop off situation less after punching, such as
Shown in Fig. 2, the thickness of the insulating coating can be further selected as 3-8mm；And the insulating coating and the anode sizing agent
The thickness of intersection is 1-2mm (i.e. the part of reference 3 in Fig. 1 and Fig. 2), and/or the insulating coating and described negative
The thickness of pole slurry intersection is 1-2mm (i.e. the part of reference 3 in Fig. 1 and Fig. 2).
Present invention also offers a kind of lithium ion battery, wherein, the lithium ion battery include according to it is described above just
Pole piece.
Below will the present invention will be described in detail by embodiment.In following examples, the aluminum oxide is commercially available grain
Footpath is not more than 1 μm of commercially available product, and the boehmite is conventional commercial product, the Kynoar for the trade mark be 5130 it is commercially available
Product, the 1-METHYLPYRROLIDONE is conventional commercial product.
Preparation example 1
1) 1-METHYLPYRROLIDONE of the Kynoar of 2 weight %, 60 weight % is placed in conjunction pulp grinder and is stirred
180min is obtained glue；
2) obtained glue is placed in temperature to place 300min curings under conditions of 25 DEG C；
3) to after the aluminum oxide that 30 weight % are added in the glue after above-mentioned curing, stirring 300min is obtained the young material of coating；
4) to step 3) in the 1-METHYLPYRROLIDONE of 8 weight % is added in the young material of obtained coating after stir, make
Obtain mixture M 1；
5) by step 4) in after obtained mixture M 1 crosses 150 mesh sieves, insulating coating A1 is obtained.
Preparation example 2
Preparation method according to preparation example 1 is prepared, unlike, the aluminum oxide is substituted with boehmite, gather inclined fluorine
The consumption of ethene is 3 weight %, and the consumption of boehmite is 40 weight %, step 1) in the consumption of 1-METHYLPYRROLIDONE be 50 weights
Amount %, step 4) in the consumption of 1-METHYLPYRROLIDONE be 7 weight %, insulating coating A2 is obtained.
Preparation example 3
Preparation method according to preparation example 1 is prepared, unlike, step 3) in be additionally added boehmite, polyvinylidene fluoride
The consumption of alkene is 5 weight %, and the consumption of boehmite is 25 weight %, and the consumption of aluminum oxide is 25 weight %, step 1) in N- first
The consumption of base pyrrolidones be 40 weight %, step 4) in 1-METHYLPYRROLIDONE consumption be 5 weight %, be obtained insulating coating
A3。
Preparation example 4
The aluminum oxide of the Kynoar of 2 weight %, the 1-METHYLPYRROLIDONE of 68 weight % and 30 weight % is placed in
After crossing 150 mesh sieves after stirring 180min in conjunction pulp grinder, insulating coating A4 is obtained.
Application examples 1
Obtained insulating coating A1 in preparation example 1 and anode sizing agent are coated in anode collection simultaneously by extrusion coating machine
Simultaneously, insulating coating A1's body aluminium foil goes forward side by side along anode sizing agent edge-coating about 5-6mm (i.e. the thickness of insulating coating is 5-6mm)
Row drying, it is to be dried after, continue coat plus plate current-collecting body aluminium foil another side.Simultaneously, it is ensured that anode sizing agent and insulating coating A1
The degree of registration of side is 0.5-1mm, and positive plate blank is obtained.Positive plate blank obtained above is punched out, positive pole is obtained
Piece B1.
Application examples 2
Preparation method according to application examples 1 is prepared, unlike, the insulating coating for using is insulating coating A2, system
Obtain positive plate B2.
Application examples 3
Preparation method according to application examples 1 is prepared, unlike, the insulating coating for using is insulating coating A2, system
Obtain positive plate B3.
Application examples 4
Preparation method according to application examples 1 is prepared, unlike, the insulating coating for using is insulating coating A4, system
Obtain positive plate B4.
Comparative example 1
Preparation method according to application examples 1 is prepared, unlike, insulating coating A1 is not used, positive plate D1 is obtained.
Test case
Detect respectively and the burr of B1-B3 obtained above and D1 and drop off situation, while by B1-B3 obtained above and D1
Lithium ion battery is assembled into by this area usual manner, its cycle life is detected, the result for obtaining is as shown in table 1.
Table 1
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned implementation method
Detail, in range of the technology design of the invention, various simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of insulating coating composition, it is characterised in that the composition includes insulating materials, binding agent and solvent.
2. composition according to claim 1, wherein, on the basis of the gross weight of the composition, the insulating materials
Content be 30 weight %-50 weight %, the content of the binding agent is 2 weight %-5 weight %, and the content of the solvent is
48 weight %-68 weight %.
3. composition according to claim 1 and 2, wherein, the insulating materials is ceramic material；
The binding agent is Kynoar；
The solvent is 1-METHYLPYRROLIDONE；
Preferably, the intrinsic viscosity of the Kynoar is not less than 2.2dl/g.
4. composition according to claim 3, wherein, the insulating materials is selected from aluminum oxide and/or boehmite；
Preferably, the particle diameter of the aluminum oxide and/or the boehmite is not more than 1 μm.
5. a kind of preparation method of insulating coating, it is characterised in that the insulating coating is by any one institute in claim 1-4
The composition stated is obtained.
6. preparation method according to claim 5, wherein, the preparation method includes：
1) binding agent and Part I solvent are mixed, glue is obtained；
2) by step 1) in obtained glue and insulating materials mixing, the young material of coating is obtained；
3) by step 2) in the young material of obtained coating and the mixing of Part II solvent, insulating coating is obtained；
Wherein, on the basis of the gross weight of the solvent, the consumption of the Part I solvent is 80 weight %-90 weight %,
The consumption of the Part II solvent is 10 weight %-20 weight %.
7. preparation method according to claim 6, wherein, step 1) in also include that obtained glue is placed in into temperature is
120-300min is placed under conditions of 10-30 DEG C；And/or
Step 3) in also include by obtained insulating coating sieving, and sieving sieve aperture be 120-150 mesh.
8. preparation method according to claim 6, wherein, step 1) in be mixed into stirring mixing, stir speed (S.S.) is 1200-
1500r/min, mixing time is 120-180min；And/or
Step 2) in be mixed into stirring mixing, stir speed (S.S.) is 1500-2000r/min, and mixing time is 240-360min；With/
Or
Step 3) in be mixed into stirring mixing, stir speed (S.S.) is 1500-2000r/min, and mixing time is 30-60min.
9. a kind of positive plate, it is characterised in that the positive plate includes the preparation according to any one in claim 5-8
Insulating coating obtained in method；
Preferably, the thickness of the insulating coating is 3-8mm.
10. a kind of lithium ion battery, it is characterised in that the lithium ion battery includes positive plate according to claim 9.
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| CN201710036571.4A CN106784848B (en) | 2017-01-18 | 2017-01-18 | Insulating coating composition, the preparation method of insulating coating, positive plate and lithium ion battery |
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| CN201710036571.4A CN106784848B (en) | 2017-01-18 | 2017-01-18 | Insulating coating composition, the preparation method of insulating coating, positive plate and lithium ion battery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148888A (en) * | 2018-08-30 | 2019-01-04 | 成都市银隆新能源产业技术研究有限公司 | Lithium battery electrode plate and preparation method thereof |
| CN110380002A (en) * | 2019-06-03 | 2019-10-25 | 江西力能新能源科技有限公司 | A kind of boehmite/alumina composite lithium ion battery coating pole piece |
| CN110911637A (en) * | 2019-12-05 | 2020-03-24 | 东莞塔菲尔新能源科技有限公司 | Negative plate, preparation method thereof and lithium ion battery |
| CN111564637A (en) * | 2020-05-19 | 2020-08-21 | 江苏塔菲尔新能源科技股份有限公司 | Pole piece, preparation method thereof and lithium ion battery |
| CN111660015A (en) * | 2020-06-18 | 2020-09-15 | 昆山聚创新能源科技有限公司 | Laser die cutting method for pole piece |
| CN111777902A (en) * | 2020-07-24 | 2020-10-16 | 天津市捷威动力工业有限公司 | Preparation method of boehmite slurry for lithium ion battery |
| CN113471578A (en) * | 2021-06-04 | 2021-10-01 | 苏州领湃新能源科技有限公司 | Power energy storage battery shell, preparation method and battery |
| CN113659103A (en) * | 2021-07-21 | 2021-11-16 | 合肥国轩高科动力能源有限公司 | Preparation method of pole piece for lithium ion battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449011A (en) * | 2014-12-04 | 2015-03-25 | 中航锂电（洛阳）有限公司 | Lithium ion battery insulating coating, preparation method and pole piece and lithium ion battery using insulating coating |
| CN105244470A (en) * | 2015-09-11 | 2016-01-13 | 合肥国轩高科动力能源有限公司 | Positive plate of high-safety lithium-ion laminated battery and preparation method of positive plate |
| CN106129327A (en) * | 2016-08-10 | 2016-11-16 | 欣旺达电子股份有限公司 | Anode slice of lithium ion battery and lithium ion battery |
-
2017
- 2017-01-18 CN CN201710036571.4A patent/CN106784848B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449011A (en) * | 2014-12-04 | 2015-03-25 | 中航锂电（洛阳）有限公司 | Lithium ion battery insulating coating, preparation method and pole piece and lithium ion battery using insulating coating |
| CN105244470A (en) * | 2015-09-11 | 2016-01-13 | 合肥国轩高科动力能源有限公司 | Positive plate of high-safety lithium-ion laminated battery and preparation method of positive plate |
| CN106129327A (en) * | 2016-08-10 | 2016-11-16 | 欣旺达电子股份有限公司 | Anode slice of lithium ion battery and lithium ion battery |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148888A (en) * | 2018-08-30 | 2019-01-04 | 成都市银隆新能源产业技术研究有限公司 | Lithium battery electrode plate and preparation method thereof |
| CN110380002A (en) * | 2019-06-03 | 2019-10-25 | 江西力能新能源科技有限公司 | A kind of boehmite/alumina composite lithium ion battery coating pole piece |
| CN110911637A (en) * | 2019-12-05 | 2020-03-24 | 东莞塔菲尔新能源科技有限公司 | Negative plate, preparation method thereof and lithium ion battery |
| CN110911637B (en) * | 2019-12-05 | 2021-07-30 | 东莞塔菲尔新能源科技有限公司 | Negative plate, preparation method thereof and lithium ion battery |
| CN111564637A (en) * | 2020-05-19 | 2020-08-21 | 江苏塔菲尔新能源科技股份有限公司 | Pole piece, preparation method thereof and lithium ion battery |
| CN111660015A (en) * | 2020-06-18 | 2020-09-15 | 昆山聚创新能源科技有限公司 | Laser die cutting method for pole piece |
| CN111777902A (en) * | 2020-07-24 | 2020-10-16 | 天津市捷威动力工业有限公司 | Preparation method of boehmite slurry for lithium ion battery |
| CN111777902B (en) * | 2020-07-24 | 2022-05-10 | 天津市捷威动力工业有限公司 | Preparation method of boehmite slurry for lithium ion battery |
| CN113471578A (en) * | 2021-06-04 | 2021-10-01 | 苏州领湃新能源科技有限公司 | Power energy storage battery shell, preparation method and battery |
| CN113471578B (en) * | 2021-06-04 | 2023-03-14 | 湖南领湃达志科技股份有限公司 | Power energy storage battery shell, preparation method and battery |
| CN113659103A (en) * | 2021-07-21 | 2021-11-16 | 合肥国轩高科动力能源有限公司 | Preparation method of pole piece for lithium ion battery |
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| Publication number | Publication date |
|---|---|
| CN106784848B (en) | 2019-10-22 |
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Address after: 226200 No.306 Heping South Road, Huilong Town, Qidong City, Nantong City, Jiangsu Province Patentee after: Jiangsu haisida power supply Co.,Ltd. Patentee after: JIANGSU NEW POWER BATTERY & MATERIAL ENGINEERING TECHNOLOGY RESEARCH CENTER CO.,LTD. Address before: 226200 No.306 Heping South Road, Huilong Town, Qidong City, Nantong City, Jiangsu Province Patentee before: JIANGSU HIGHSTAR BATTERY MANUFACTURING Co.,Ltd. Patentee before: JIANGSU NEW POWER BATTERY & MATERIAL ENGINEERING TECHNOLOGY RESEARCH CENTER CO.,LTD. |