CN111909656A - Carbon battery sealing compound and preparation method thereof - Google Patents
Carbon battery sealing compound and preparation method thereof Download PDFInfo
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- CN111909656A CN111909656A CN201910382357.3A CN201910382357A CN111909656A CN 111909656 A CN111909656 A CN 111909656A CN 201910382357 A CN201910382357 A CN 201910382357A CN 111909656 A CN111909656 A CN 111909656A
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- asphalt
- epoxy resin
- sealing compound
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a sealing adhesive for a carbon battery and a preparation method thereof, belonging to the field of batteries, and the sealing adhesive for the carbon battery comprises the following raw materials in parts by weight: 50 to 70 parts of asphalt, 5 to 15 parts of lubricating oil, 5 to 10 parts of epoxy resin, 10 to 20 parts of solvent gasoline, 15 to 25 parts of asbestos powder, 1 to 5 parts of colloidal graphite powder and 1 to 3 parts of tackifying resin. The sealing adhesive for the carbon battery, which is prepared by taking asphalt with good cohesiveness, ageing resistance and low price as a main material and matching lubricating oil, epoxy resin, solvent gasoline, asbestos powder, colloidal graphite powder and tackifying resin, has the advantages of good sealing effect, good ageing resistance, no emergence at high temperature, good adhesiveness at low temperature, no cracking, easy coating, small peculiar smell, lower cost, greatly prolonged service life of a battery product and convenient use, and solves the problems of high cost, poor cohesiveness and easy ageing of the sealing adhesive for the carbon battery in the prior art.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a sealing compound for a carbon battery and a preparation method thereof.
Background
The carbon battery, which is known as a neutral zinc-manganese dioxide dry battery, is a primary battery in a chemical power supply, and is a disposable battery, and this chemical power supply device is also called a dry battery because the electrolyte is an immobile paste, as opposed to a battery having a flowable electrolyte. The carbon battery is not only suitable for flashlights, semiconductor radios, radio recorders, cameras, electronic clocks, toys and the like, but also suitable for various fields in national economy such as national defense, scientific research, telecommunication, navigation, aviation, medicine and the like.
At present, the zinc-manganese battery sealing compound mainly comprises three types, namely an asphalt series, a rubber series and an epoxy series, and the asphalt series battery sealing compound has good cohesiveness and ageing resistance, but has certain environmental protection problem; the rubber series battery sealing compound has good creep resistance and sealing performance, can improve the storage stability of the battery, but has much higher cost than the asphalt series; the epoxy series battery sealing glue also has the problems of high brittleness, poor impact resistance and low peel strength.
Disclosure of Invention
Technical problem to be solved
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a sealing adhesive for a carbon battery and a preparation method thereof, which solve the problems of high cost, poor caking property and easy aging of the sealing adhesive for the carbon battery in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a sealing compound for a carbon battery comprises the following raw materials in parts by weight: 50 to 70 parts of asphalt, 5 to 15 parts of lubricating oil, 5 to 10 parts of epoxy resin, 10 to 20 parts of solvent gasoline, 15 to 25 parts of asbestos powder, 1 to 5 parts of colloidal graphite powder and 1 to 3 parts of tackifying resin.
Preferably, the sealing compound for the carbon battery comprises the following raw materials in parts by weight: 50 parts of asphalt, 5 parts of lubricating oil, 5 parts of epoxy resin, 10 parts of solvent gasoline, 15 parts of asbestos powder, 1 part of colloidal graphite powder and 1 part of tackifying resin.
Preferably, the sealing compound for the carbon battery comprises the following raw materials in parts by weight: 60 parts of asphalt, 10 parts of lubricating oil, 7.5 parts of epoxy resin, 15 parts of solvent gasoline, 20 parts of asbestos powder, 3 parts of colloidal graphite powder and 2 parts of tackifying resin.
Preferably, the sealing compound for the carbon battery comprises the following raw materials in parts by weight: 70 parts of asphalt, 15 parts of lubricating oil, 10 parts of epoxy resin, 20 parts of solvent gasoline, 25 parts of asbestos powder, 5 parts of colloidal graphite powder and 3 parts of tackifying resin.
Preferably, the asphalt is one of semi-oxidized asphalt, oxidized asphalt or modified asphalt, and the solvent gasoline is No. 15 solvent gasoline.
Preferably, the epoxy resin is one or a mixture of more of epoxy resin EP-13, epoxy resin EP-16 and epoxy resin EP-20.
Preferably, the tackifying resin is one or a mixture of a plurality of alpha-terpene resin, beta-terpene resin and terpene phenolic resin.
The invention aims to solve another technical problem of providing a preparation method of the sealing compound for the carbon battery, which comprises the following steps:
1) Pre-drying the prepared asbestos powder for later use;
2) Putting solvent gasoline into a prepared heating and modulating container A, heating to 80-100 ℃, slowly adding the asbestos powder dried in the step 1) and uniformly stirring to obtain a mixture of the asbestos powder and the solvent gasoline for later use;
3) Putting the asphalt into a prepared heating and modulating container B, heating for 3-5 h at 150-220 ℃ to dissolve the asphalt and uniformly stirring, then sequentially adding lubricating oil, epoxy resin and colloidal graphite powder, and uniformly stirring to obtain a mixture for later use;
4) Pouring the mixture of the asbestos powder and the lubricating oil which are uniformly stirred in the step 2) into the mixture in the step 3), continuously stirring until no bubble is formed, and continuously heating for 1 hour to obtain a crude product;
5) And (3) cooling the crude product obtained in the step 4) to 80-120 ℃, adding tackifying resin into the crude product, uniformly stirring, filtering and packaging to obtain the carbon battery sealing compound.
(III) advantageous effects
Compared with the prior art, the invention provides a carbon battery sealing compound and a preparation method thereof, and the sealing compound has the following beneficial effects:
1. the carbon battery sealing adhesive prepared by using the asphalt with good cohesiveness, ageing resistance and low price as a main material and matching with lubricating oil, epoxy resin, solvent gasoline, asbestos powder, colloidal graphite powder and tackifying resin has the advantages of good sealing effect, good ageing resistance, no emergence at high temperature, good adhesiveness at low temperature, no cracking, easy coating, small peculiar smell, lower cost, greatly prolonged service life of a battery product and convenient use, and solves the problems of high cost, poor cohesiveness and easy ageing of the sealing adhesive for the carbon battery in the prior art.
2. The epoxy resin is used as a polyhydroxy component, the advantages of polyurethane and epoxy resin are combined, the bonding strength and the chemical resistance are good, the adhesion of the sealing adhesive can be improved by adding the epoxy resin, and the sealing adhesive is not easy to deform and flow at high temperature.
3. The lubricating oil mainly plays roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing, buffering and the like, the viscosity of the asphalt can be reduced through the cooperative matching of the lubricating oil and the asphalt, and meanwhile, the temperature sensing performance of the asphalt is improved, so that the carbon battery sealing adhesive adapts to the change of the environmental temperature.
4. The colloidal graphite powder has excellent high lubrication, high conductivity, high adsorption and catalytic performance and extremely high plasticity, and the carbon battery sealing compound has good cohesiveness, sealing performance and creep resistance through the matching of the colloidal graphite powder.
5. The tackifying resin can reduce the melt viscosity of the carbon battery sealing glue and improve the wettability of an adherend of the carbon battery sealing glue, thereby improving the adhesiveness of the carbon battery sealing glue.
6. The solvent gasoline further adjusts the viscosity of the sealing rubber of the carbon battery, and ensures that the sealing rubber of the carbon battery has proper fluidity so as to be suitable for coating.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a sealing compound for a carbon battery comprises the following raw materials in parts by weight: 50 parts of asphalt, 5 parts of lubricating oil, 5 parts of epoxy resin, 10 parts of solvent gasoline, 15 parts of asbestos powder, 1 part of colloidal graphite powder and 1 part of tackifying resin.
Further, the asphalt is one of semi-oxidized asphalt, oxidized asphalt or modified asphalt, the solvent gasoline is No. 15 solvent gasoline, and the solvent gasoline further adjusts the viscosity of the sealing adhesive of the carbon battery to ensure that the sealing adhesive of the carbon battery has proper fluidity so as to be suitable for coating.
Furthermore, the epoxy resin is one or a mixture of more of epoxy resin EP-13, epoxy resin EP-16 and epoxy resin EP-20, the epoxy resin is used as a polyhydroxy component, the advantages of polyurethane and the epoxy resin are combined, the bonding strength and the chemical resistance are better, the adhesion of the sealing adhesive can be improved by adding the epoxy resin, and the sealing adhesive is kept at a high temperature and is not easy to deform and flow.
Furthermore, the tackifying resin is one or a mixture of a plurality of alpha-terpene resin, beta-terpene resin and terpene phenolic resin, and can reduce the melt viscosity of the carbon battery sealing glue and improve the wettability of an adherend of the carbon battery sealing glue, thereby improving the adhesiveness of the carbon battery sealing glue.
A preparation method of a sealing compound for a carbon battery comprises the following steps:
1) Pre-drying the prepared asbestos powder for later use;
2) Putting solvent gasoline into a prepared heating and modulating container A, heating to 80 ℃, slowly adding the asbestos powder dried in the step 1) and uniformly stirring to obtain a mixture of the asbestos powder and the solvent gasoline for later use;
3) Putting the asphalt into a prepared heating and modulating container B, heating for 3h at 150 ℃ to dissolve the asphalt and uniformly stirring, then sequentially adding lubricating oil, epoxy resin and colloidal graphite powder, and uniformly stirring to obtain a mixture for later use;
4) Pouring the mixture of the asbestos powder and the lubricating oil which are uniformly stirred in the step 2) into the mixture in the step 3), continuously stirring until no bubble is formed, and continuously heating for 1 hour to obtain a crude product;
5) And (3) cooling the crude product obtained in the step 4) to 80 ℃, adding tackifying resin into the crude product, uniformly stirring, filtering and packaging to obtain the sealing adhesive for the carbon battery.
Example two:
a sealing compound for a carbon battery comprises the following raw materials in parts by weight: 60 parts of asphalt, 10 parts of lubricating oil, 7.5 parts of epoxy resin, 15 parts of solvent gasoline, 20 parts of asbestos powder, 3 parts of colloidal graphite powder and 2 parts of tackifying resin.
Further, the asphalt is one of semi-oxidized asphalt, oxidized asphalt or modified asphalt, the solvent gasoline is No. 15 solvent gasoline, and the solvent gasoline further adjusts the viscosity of the sealing adhesive of the carbon battery, so that the sealing adhesive of the carbon battery has proper fluidity to be suitable for coating.
Furthermore, the epoxy resin is one or a mixture of more of epoxy resin EP-13, epoxy resin EP-16 and epoxy resin EP-20, the epoxy resin is used as a polyhydroxy component, the advantages of polyurethane and the epoxy resin are combined, the adhesive strength and the chemical resistance are better, the adhesion of the sealing adhesive can be improved by adding the epoxy resin, and the sealing adhesive is not easy to deform and flow at high temperature.
Furthermore, the tackifying resin is one or a mixture of a plurality of alpha-terpene resin, beta-terpene resin and terpene phenolic resin, and can reduce the melt viscosity of the carbon battery sealing glue and improve the wettability of the carbon battery sealing glue adherend, thereby improving the adhesiveness of the carbon battery sealing glue.
A preparation method of a carbon battery sealing adhesive comprises the following steps:
1) Pre-drying the prepared asbestos powder for later use;
2) Putting solvent gasoline into a prepared heating and modulating container A, heating to 90 ℃, slowly adding the asbestos powder dried in the step 1) and uniformly stirring to obtain a mixture of the asbestos powder and the solvent gasoline for later use;
3) Putting the asphalt into a prepared heating and modulating container B, heating for 4 hours at 170 ℃ to melt the asphalt and uniformly stirring, then sequentially adding lubricating oil, epoxy resin and colloidal graphite powder, and uniformly stirring to obtain a mixture for later use;
4) Pouring the mixture of the asbestos powder and the lubricating oil which are uniformly stirred in the step 2) into the mixture in the step 3), continuously stirring until no bubble is formed, and continuously heating for 1 hour to obtain a crude product;
5) And (5) cooling the crude product obtained in the step 4) to 100 ℃, adding tackifying resin into the crude product, stirring uniformly, filtering, and packaging to obtain the carbon battery sealing compound.
Example three:
the sealing adhesive for the carbon battery comprises the following raw materials in parts by weight: 70 parts of asphalt, 15 parts of lubricating oil, 10 parts of epoxy resin, 20 parts of solvent gasoline, 25 parts of asbestos powder, 5 parts of colloidal graphite powder and 3 parts of tackifying resin.
Further, the asphalt is one of semi-oxidized asphalt, oxidized asphalt or modified asphalt, the solvent gasoline is No. 15 solvent gasoline, and the solvent gasoline further adjusts the viscosity of the sealing adhesive of the carbon battery, so that the sealing adhesive of the carbon battery has proper fluidity to be suitable for coating.
Furthermore, the epoxy resin is one or a mixture of more of epoxy resin EP-13, epoxy resin EP-16 and epoxy resin EP-20, the epoxy resin is used as a polyhydroxy component, the advantages of polyurethane and the epoxy resin are combined, the bonding strength and the chemical resistance are better, the adhesion of the sealing adhesive can be improved by adding the epoxy resin, and the sealing adhesive is kept at a high temperature and is not easy to deform and flow.
Furthermore, the tackifying resin is one or a mixture of a plurality of alpha-terpene resin, beta-terpene resin and terpene phenolic resin, and can reduce the melt viscosity of the carbon battery sealing glue and improve the wettability of an adherend of the carbon battery sealing glue, thereby improving the adhesiveness of the carbon battery sealing glue.
A preparation method of a carbon battery sealing adhesive comprises the following steps:
1) Pre-drying the prepared asbestos powder for later use;
2) Putting solvent gasoline into a prepared heating and modulating container A, heating to 100 ℃, slowly adding the asbestos powder dried in the step 1) and uniformly stirring to obtain a mixture of the asbestos powder and the solvent gasoline for later use;
3) Putting the asphalt into a prepared heating and modulating container B, heating for 5 hours at 220 ℃ to dissolve the asphalt and uniformly stirring, then sequentially adding lubricating oil, epoxy resin and colloidal graphite powder, and uniformly stirring to obtain a mixture for later use;
4) Pouring the mixture of the asbestos powder and the lubricating oil which are uniformly stirred in the step 2) into the mixture in the step 3), continuously stirring until no bubble is formed, and continuously heating for 1 hour to obtain a crude product;
5) And (3) cooling the crude product obtained in the step 4) to 120 ℃, adding tackifying resin into the crude product, uniformly stirring, filtering and packaging to obtain the sealing adhesive for the carbon battery.
And (4) judging the standard: table 1 shows the test standards of the performance of the sealing compound of the battery
| Item | Unit of | Index (I) | Analytical method |
| Softening point | ℃ | 20-22 | GB/T 4507 |
| Rotational viscosity, 100 deg.C | mPa·s | 250-300 | ASTM D4402-2002 |
| High temperature flowability | 45℃ | Qualified | SH/T0421-92 improvement ① |
| Low-temperature adhesion rate-20 deg.C | ％ | ≥ 95 | SH/T0421-92 improvement ② |
TABLE 1
Note (1): referring to the method of SH/T0421-92, the test temperature is changed to 45 ℃;
note (2): referring to the method of SH/T0421-92, the test temperature was changed from ambient to-20 ℃ and the test samples were cooled in a freezer at-20 ℃ for 1h.
The three types of sealing compound for carbon batteries obtained in examples one to three and a commercially available sealing compound for carbon batteries were subjected to performance testing according to the relevant test method of the performance test standard of the sealing compound for batteries in table 1, and the test results are shown in table 2:
table 2 comparative table of sealing compound performance test results:
TABLE 2
As can be seen from Table 2, the sealing compound for the carbon battery of the invention all meets the index requirements in the performance test standard of the sealing compound for the battery in Table 1, and the softening points of the sealing compound are all between 20 and 22 ℃; the rotational viscosity of the coating is 270-300 mPas at 100 ℃, so that the coating can not flow down from a zinc cylinder and a carbon rod at the coating temperature; the high-temperature flowing property tests are all qualified, which shows that the sealing compound provided by the invention cannot flow out of the battery when applied to the battery, and has a good sealing effect; the adhesion rate is more than 95% at-20 ℃, which shows that the battery sealing compound has good adhesion at low temperature and is not easy to crack, and the battery sealing compound has obvious advantages compared with the commercially available carbon battery sealing compound.
In conclusion: the sealing glue for the carbon battery has the advantages of good sealing effect, good aging resistance, no emergence at high temperature, good adhesion at low temperature, no cracking, easy coating, little peculiar smell, lower cost, greatly prolonged service life of the battery product and convenient use.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (8)
1. The sealing compound for the carbon battery is characterized by comprising the following raw materials in parts by weight: 50 to 70 parts of asphalt, 5 to 15 parts of lubricating oil, 5 to 10 parts of epoxy resin, 10 to 20 parts of asbestos powder, 15 to 25 parts of asbestos powder, 1 to 5 parts of colloidal graphite powder and 1 to 3 parts of tackifying resin.
2. The sealing compound for carbon batteries according to claim 1, wherein: the material comprises the following raw materials in parts by weight: 50 parts of asphalt, 5 parts of lubricating oil, 5 parts of epoxy resin, 10 parts of solvent gasoline, 15 parts of asbestos powder, 1 part of colloidal graphite powder and 1 part of tackifying resin.
3. The sealing compound for carbon batteries according to claim 1, wherein: the material comprises the following raw materials in parts by weight: 60 parts of asphalt, 10 parts of lubricating oil, 7.5 parts of epoxy resin, 15 parts of solvent gasoline, 20 parts of asbestos powder, 3 parts of colloidal graphite powder and 2 parts of tackifying resin.
4. The sealing compound for carbon batteries according to claim 1, wherein: the material comprises the following raw materials in parts by weight: 70 parts of asphalt, 15 parts of lubricating oil, 10 parts of epoxy resin, 20 parts of solvent gasoline, 25 parts of asbestos powder, 5 parts of colloidal graphite powder and 3 parts of tackifying resin.
5. The sealing compound for carbon batteries according to claim 1, wherein: the asphalt is one of semi-oxidized asphalt, oxidized asphalt or modified asphalt, and the solvent gasoline is No. 15 solvent gasoline.
6. The sealing compound for carbon batteries according to claim 1, wherein: the epoxy resin is one or a mixture of more of epoxy resin EP-13, epoxy resin EP-16 and epoxy resin EP-20.
7. The sealing compound for carbon batteries according to claim 1, wherein: the tackifying resin is one or a mixture of a plurality of alpha-terpene resin, beta-terpene resin and terpene phenolic resin.
8. The preparation method of the sealing compound for the carbon battery is characterized by comprising the following steps of:
1) Pre-drying the prepared asbestos powder for later use;
2) Putting solvent gasoline into a prepared heating and modulating container A, heating to 80-100 ℃, slowly adding the asbestos powder dried in the step 1) and uniformly stirring to obtain a mixture of the asbestos powder and the solvent gasoline for later use;
3) Putting the asphalt into a prepared heating and modulating container B, heating for 3-5 h at 150-220 ℃ to dissolve the asphalt and uniformly stirring, then sequentially adding lubricating oil, epoxy resin and colloidal graphite powder, and uniformly stirring to obtain a mixture for later use;
4) Pouring the mixture of the asbestos powder and the lubricating oil which are uniformly stirred in the step 2) into the mixture in the step 3), continuously stirring until no bubble is formed, and continuously heating for 1 hour to obtain a crude product;
5) And (3) cooling the crude product obtained in the step 4) to 80-120 ℃, adding tackifying resin into the crude product, stirring uniformly, filtering, and packaging to obtain the carbon battery sealing compound.
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| CN201910382357.3A CN111909656A (en) | 2019-05-09 | 2019-05-09 | Carbon battery sealing compound and preparation method thereof |
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| CN201910382357.3A CN111909656A (en) | 2019-05-09 | 2019-05-09 | Carbon battery sealing compound and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0238135A2 (en) * | 1986-03-21 | 1987-09-23 | Shell Internationale Researchmaatschappij B.V. | Hot melt sealant compositions |
| CN104362268A (en) * | 2014-11-05 | 2015-02-18 | 潍坊汇智化工有限公司 | Carbon battery sealing compound and preparation method thereof |
| CN105154002A (en) * | 2015-09-08 | 2015-12-16 | 青岛文创科技有限公司 | Sealing compound for zinc-manganese battery and preparation method thereof |
| CN105602520A (en) * | 2015-09-08 | 2016-05-25 | 青岛文创科技有限公司 | Sealing compound for carbon battery and preparation method thereof |
-
2019
- 2019-05-09 CN CN201910382357.3A patent/CN111909656A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0238135A2 (en) * | 1986-03-21 | 1987-09-23 | Shell Internationale Researchmaatschappij B.V. | Hot melt sealant compositions |
| CN104362268A (en) * | 2014-11-05 | 2015-02-18 | 潍坊汇智化工有限公司 | Carbon battery sealing compound and preparation method thereof |
| CN105154002A (en) * | 2015-09-08 | 2015-12-16 | 青岛文创科技有限公司 | Sealing compound for zinc-manganese battery and preparation method thereof |
| CN105602520A (en) * | 2015-09-08 | 2016-05-25 | 青岛文创科技有限公司 | Sealing compound for carbon battery and preparation method thereof |
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Effective date of registration: 20210908 Address after: 276000 intersection of Changshen line and Gongye 1st Road, Tangtou street, Hedong District, Linyi City, Shandong Province Applicant after: Shandong Huatai New Energy Battery Co.,Ltd. Address before: 276000 Tangtou Town, Hedong District, Linyi City, Shandong Province Applicant before: LINYI HUATAI BATTERY Co.,Ltd. |
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