CN112961624A - Conductive welding adhesive, conductive double-sided adhesive tape and application - Google Patents

Conductive welding adhesive, conductive double-sided adhesive tape and application Download PDF

Info

Publication number
CN112961624A
CN112961624A CN202110128933.9A CN202110128933A CN112961624A CN 112961624 A CN112961624 A CN 112961624A CN 202110128933 A CN202110128933 A CN 202110128933A CN 112961624 A CN112961624 A CN 112961624A
Authority
CN
China
Prior art keywords
conductive
welding
adhesive
solder paste
matrix
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110128933.9A
Other languages
Chinese (zh)
Other versions
CN112961624B (en
Inventor
李文文
李兴旺
郭春泰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin EV Energies Co Ltd
Original Assignee
Tianjin EV Energies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin EV Energies Co Ltd filed Critical Tianjin EV Energies Co Ltd
Priority to CN202110128933.9A priority Critical patent/CN112961624B/en
Publication of CN112961624A publication Critical patent/CN112961624A/en
Application granted granted Critical
Publication of CN112961624B publication Critical patent/CN112961624B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J9/00Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
    • C09J9/02Electrically-conducting adhesives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J111/00Adhesives based on homopolymers or copolymers of chloroprene
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04Homopolymers or copolymers of esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J145/00Adhesives based on homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic system; Adhesives based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/04Condensation polymers of aldehydes or ketones with phenols only
    • C09J161/06Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J179/00Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
    • C09J179/02Polyamines
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J183/00Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
    • C09J183/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/001Conductive additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/33Applications of adhesives in processes or use of adhesives in the form of films or foils for batteries or fuel cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention provides a conductive welding adhesive, a conductive double-sided adhesive tape and an application, wherein the conductive welding adhesive comprises the following components in percentage by weight: 30-50% of a matrix, 10-30% of a conductive polymer and 20-40% of an inorganic conductive agent. The conductive welding adhesive is prepared by using the conductive polymer, and is matched with the use of the inorganic conductive agent, so that the bonding strength of the conductive adhesive is increased, the conductivity of the conductive adhesive is improved, the conductive adhesive meets the requirements of large-current charging and discharging, the welding procedure in the manufacturing process of a secondary battery is cancelled in the processing process of a lithium battery, the production efficiency is improved, and the manufacturing cost is reduced.

Description

Conductive welding adhesive, conductive double-sided adhesive tape and application
Technical Field
The invention belongs to the technical field of lithium batteries, and particularly relates to a conductive welding adhesive, a conductive double-sided adhesive tape and application.
Background
In the prior art, the lithium battery is usually manufactured by adopting a welding process or a conductive welding glue to connect a conductive component, wherein:
and (3) welding design: the current collectors and the tabs, the current collectors and the current collecting pieces/current collecting discs, the current collectors and the shell and other positions needing conductive connection are connected in a welding mode, and the welding mode comprises resistance welding, ultrasonic welding and laser welding. Welding not only can generate metal dust and bring potential safety hazards, but also can generate insufficient solder, so that the product percent of pass is reduced; meanwhile, welding equipment is used, so that the production cost is increased, and the production efficiency is reduced.
Designing conductive welding glue: the formula of the conductive welding glue contains more than 60% of adhesive matrix, less than 40% of conductive agent and a small part of initiator, and the conductive welding glue is smeared on a bonding area for bonding. The existing conductive adhesive is prepared by adding an inorganic conductive agent into an adhesive, the content of an insulating adhesive matrix is high, the conductivity of the adhesive can not meet the use requirement of a high-power battery, although the content of the conductive agent can be continuously increased to improve the conductivity, the addition of excessive conductive agent can reduce the adhesion of the conductive adhesive, so that the bonding strength is reduced.
Disclosure of Invention
In view of the above, the present invention is directed to a conductive soldering paste, a conductive double-sided tape and an application thereof, so as to improve conductivity while ensuring connection strength.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the conductive welding glue comprises the following components in percentage by weight: 30-50% of a matrix, 10-30% of a conductive polymer and 20-40% of an inorganic conductive agent.
Preferably, the matrix is a mixture of one or more of silicone rubber, polyurethane rubber, chloroprene rubber, modified acrylic resin, phenolic resin and terpene resin.
Preferably, the conductive polymer is one or more of polypyrrole, polyaniline, polythiophene, polyparaphenylene and polydopamine.
Preferably, the inorganic conductive agent is one or more of silver, copper, gold, aluminum, nickel, iron, tin, zinc, graphite, carbon black, carbon nanotube, carbon fiber, graphene and VGCF.
Preferably, the coating also comprises a curing agent, and the mass of the curing agent is 0.5-5% of the mass of the matrix.
Preferably, the mass of the curing agent is 1-2% of the mass of the matrix.
A conductive double-sided tape comprising any one of the conductive solder pastes.
Use of a conductive soldering paste as claimed in any preceding claim in a process for manufacturing a lithium battery.
The conductive double-sided tape is applied to the lithium battery manufacturing process.
Compared with the prior art, the conductive welding adhesive, the conductive double-sided adhesive tape and the application have the following advantages:
the conductive welding adhesive is prepared by using the conductive polymer, and is matched with the use of the inorganic conductive agent, so that the bonding strength of the conductive adhesive is increased, the conductivity of the conductive adhesive is improved, the conductive adhesive meets the requirements of large-current charging and discharging, the welding procedure in the manufacturing process of a secondary battery is cancelled in the processing process of a lithium battery, the production efficiency is improved, and the manufacturing cost is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a connection structure of a current collector and a tab according to an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure between a current collector and a current collecting plate/disk according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure of a current collector and a casing according to an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure of a current collecting plate/metal sheet and a cover assembly according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The conductive welding glue comprises the following components in percentage by weight: 30% -50% of a matrix, 10% -30% of a conductive polymer and 20% -40% of an inorganic conductive agent, wherein the conductive polymer is preferably a doped high-conductivity polymer.
Preferably, the matrix is a mixture of one or more of silicone rubber, polyurethane rubber, chloroprene rubber, modified acrylic resin, phenolic resin and terpene resin.
Preferably, the conductive polymer is one or more of polypyrrole, polyaniline, polythiophene, polyparaphenylene and polydopamine.
Preferably, the inorganic conductive agent is one or more of silver, copper, gold, aluminum, nickel, iron, tin, zinc, graphite, carbon black, carbon nanotube, carbon fiber, graphene and VGCF.
Preferably, the conductive adhesive also comprises a curing agent, wherein the mass of the curing agent is 0.5-5% of that of the substrate, and the bonding speed of the conductive adhesive is accelerated.
Preferably, the mass of the curing agent is 1-2% of the mass of the matrix.
Besides being prepared into viscous-state conductive welding glue by mixing the base body, the conductive polymer and the inorganic conductive agent for use, the adhesive can also be prepared into conductive double-sided adhesive tape with isolation paper, thereby facilitating the pasting operation.
The conductive welding paste with different components is prepared for carrying out the peel strength and conductivity tests, and the proportion of the components and the test results are shown in table 1.
The peeling strength test condition is that conductive welding glue is smeared on two copper strips with fixed width, a 180-degree peeling test is carried out by using a universal tensile tester after the copper strips are compressed and dried, and the test speed is 25 mm/min.
The conductivity test conditions were that the fixed bonding or welding area was 3 × 20mm, and the resistance was tested by connecting electrodes of the same specification.
Table 1: comparison of peeling strength and conductivity of conductive welding glue with different formulas
Figure BDA0002924403040000051
Comparing the data in table 1, it can be seen that comparative examples 1 to 3 are conductive soldering pastes without conductive polymer, and the resistance is higher under the condition of higher peel strength, because the substrate itself which has the function of adhesion is not conductive, and the increase of the content of the substrate can reduce the content of the inorganic conductive agent, which causes the resistance to increase; and decreasing the matrix content results in a decrease in peel strength.
The conductive welding paste has a certain bonding effect by introducing the conductive polymer (polyaniline, polypyrrole and the like), and can also increase the conductivity of the conductive welding paste, the conductivity of the conductive welding paste is increased along with the increase of the conductive polymer and the inorganic conductive agent, but the peel strength of the conductive welding paste tends to be reduced along with the reduction of the content of the matrix, and although the conductive polymer has certain bonding property, the bonding capability of the conductive welding paste is still inferior to that of the matrix.
Through the verification, the formula of the conductive welding glue is as follows: conductive agent polymer: inorganic conductive agent 40: 30: 30, the peel strength and the conductivity of the material are greatly improved compared with the scheme without adding the conductive polymer, and the possibility of replacing welding and improving overcurrent is provided.
The bonding tension and the contact resistance at the welding position after the conductive welding glue, the conductive double-sided tape and the conventional ultrasonic welding are compared, and the test results are shown in table 2.
Wherein the tensile test conditions are as follows: and (3) coating conductive welding glue or bonding a conductive double-sided adhesive tape on the two copper strips with fixed widths, pressing and drying, and carrying out 180-degree stripping test by using a universal tensile tester at the test speed of 25mm/min with the copper strips subjected to ultrasonic welding (ensuring that the effective widths of welding and bonding are the same).
Contact resistance test conditions: the area of the fixed adhesive or weld was 3X 20mm, and the resistance was measured by connecting electrodes of the same specification.
Table 2: comparison of conductive adhesive and ultrasonic bonding modes
Figure BDA0002924403040000061
Comparing the data in table 2, it can be seen that the peel strength and resistance of the conductive solder paste bonding scheme is comparable to that of the conventional ultrasonic welding scheme, indicating that there is a possibility that it can replace the ultrasonic welding scheme. Although the scheme of conductive double-sided adhesive bonding is currently inferior to the conventional ultrasonic welding scheme in terms of peel strength and conductivity, the operation thereof is simpler and more suitable for use in low-power batteries. The scheme of combining the conductive welding glue and the conductive double-sided adhesive tape is completely superior to the ultrasonic welding scheme in terms of peel strength and resistance.
As shown in fig. 1-4, when the conductive welding adhesive and the conductive double-sided adhesive tape of the present invention are used in the lithium battery assembly process, the conductive welding adhesive or the conductive adhesive tape is applied to the portion to be electrically connected, and then the bonding operation is performed; meanwhile, in order to increase the bonding strength and the conductivity, the conductive welding glue and the electric conduction can also be used in a matching way, namely, the conductive adhesive tape is firstly bonded at the position to be connected, and then the conductive welding glue is coated on the surface or the connection position of the conductive welding glue.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The conductive welding glue is characterized by comprising the following components in percentage by weight: 30-50% of a matrix, 10-30% of a conductive polymer and 20-40% of an inorganic conductive agent.
2. The conductive solder paste of claim 1, wherein: the matrix is one or a mixture of more of silicon rubber, polyurethane rubber, chloroprene rubber, modified acrylic resin, phenolic resin and terpene resin.
3. The conductive solder paste of claim 1, wherein: the conductive polymer is one or a mixture of polypyrrole, polyaniline, polythiophene, poly-p-benzene and polydopamine.
4. The conductive solder paste of claim 1, wherein: the inorganic conductive agent is one or a mixture of more of silver, copper, gold, aluminum, nickel, iron, tin, zinc, graphite, carbon black, carbon nanotubes, carbon fibers, graphene and VGCF.
5. The conductive solder paste of claim 1, wherein: the composite material also comprises a curing agent, wherein the mass of the curing agent is 0.5-5% of that of the matrix.
6. The conductive solder paste of claim 5, wherein: the mass of the curing agent is 1-2% of the mass of the matrix.
7. An electrically conductive double-sided tape comprising the electrically conductive solder paste according to any one of claims 1 to 6.
8. Use of a conductive solder paste as claimed in any one of claims 1 to 6 in a process for the manufacture of a lithium battery.
9. Use of the conductive double-sided tape of claim 7 in a lithium battery manufacturing process.
CN202110128933.9A 2021-01-29 2021-01-29 Conductive welding adhesive, conductive double-sided adhesive tape and application Active CN112961624B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110128933.9A CN112961624B (en) 2021-01-29 2021-01-29 Conductive welding adhesive, conductive double-sided adhesive tape and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110128933.9A CN112961624B (en) 2021-01-29 2021-01-29 Conductive welding adhesive, conductive double-sided adhesive tape and application

Publications (2)

Publication Number Publication Date
CN112961624A true CN112961624A (en) 2021-06-15
CN112961624B CN112961624B (en) 2022-10-21

Family

ID=76272524

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110128933.9A Active CN112961624B (en) 2021-01-29 2021-01-29 Conductive welding adhesive, conductive double-sided adhesive tape and application

Country Status (1)

Country Link
CN (1) CN112961624B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023115264A1 (en) * 2021-12-20 2023-06-29 东莞新能源科技有限公司 Conductive adhesive, electrochemical device, and electronic device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1778856A (en) * 2004-11-26 2006-05-31 吉林正基科技开发有限责任公司 Polyaniline conducting adhesive
CN103666363A (en) * 2012-09-10 2014-03-26 珠海方正科技高密电子有限公司 Conductive adhesive containing conductive macromolecules and preparation method thereof
CN105131882A (en) * 2015-10-09 2015-12-09 重庆文理学院 Conductive silver adhesive doped with conductive polymers
KR20190048197A (en) * 2017-10-30 2019-05-09 금호석유화학 주식회사 An adhesive composition having electic conductivity, a plastic member comprising the same, and a method for manufacturing the same
CN111534243A (en) * 2020-05-08 2020-08-14 安徽格林开思茂光电科技股份有限公司 Carbon-coated aluminum foil conductive adhesive tape for lithium battery and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1778856A (en) * 2004-11-26 2006-05-31 吉林正基科技开发有限责任公司 Polyaniline conducting adhesive
CN103666363A (en) * 2012-09-10 2014-03-26 珠海方正科技高密电子有限公司 Conductive adhesive containing conductive macromolecules and preparation method thereof
CN105131882A (en) * 2015-10-09 2015-12-09 重庆文理学院 Conductive silver adhesive doped with conductive polymers
KR20190048197A (en) * 2017-10-30 2019-05-09 금호석유화학 주식회사 An adhesive composition having electic conductivity, a plastic member comprising the same, and a method for manufacturing the same
CN111534243A (en) * 2020-05-08 2020-08-14 安徽格林开思茂光电科技股份有限公司 Carbon-coated aluminum foil conductive adhesive tape for lithium battery and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023115264A1 (en) * 2021-12-20 2023-06-29 东莞新能源科技有限公司 Conductive adhesive, electrochemical device, and electronic device

Also Published As

Publication number Publication date
CN112961624B (en) 2022-10-21

Similar Documents

Publication Publication Date Title
US20090317710A1 (en) Anode, cathode, grid and current collector material for reduced weight battery and process for production thereof
CN108281609B (en) Positive electrode plate with tab, preparation method thereof and lithium ion battery comprising positive electrode plate
WO2016031689A1 (en) Electrical connection structure
US20120045691A1 (en) Carbon nanotube based electrode materials for high performance batteries
CN112750980A (en) Negative plate, preparation method thereof and diaphragm-free battery cell
CN112961624B (en) Conductive welding adhesive, conductive double-sided adhesive tape and application
JP5288452B2 (en) Non-aqueous electrolyte secondary battery
KR20120038218A (en) Terminal contacting parts and jig for charging and discharging of secondary battery with the terminal contacting parts
CN111987373A (en) Solid electrolyte coating based on positive electrode protection, positive plate and preparation method
JP5163026B2 (en) Nonaqueous electrolyte secondary battery
CN215578623U (en) Negative plate and diaphragm-free battery cell
CN107331826B (en) Connection method of power battery pack and battery pack produced by using same
US9257727B2 (en) Assembled battery and battery pack
JP3228671U (en) Flexible battery
CN113728509A (en) Electrochemical device and electronic device
CN114171720A (en) Battery pole piece, preparation method thereof and lithium ion battery
CN109233652B (en) Conductive adhesive tape, pole piece, battery cell and secondary battery using conductive adhesive tape
CN113287214A (en) Pole piece, battery core and battery
CN107634174A (en) Battery confluxes piece
CN105489900A (en) Preparation method of current collector for lithium-ion battery
JP2019139915A (en) Positive electrode for lithium ion battery and lithium ion battery
CN110311084B (en) Battery cell structure and electronic product
CN114361569A (en) Cylindrical battery, preparation method thereof and vehicle
CN206893697U (en) A kind of module connecting device
JP2000277393A (en) Electric double-layer capacitor and its manufacturing method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant