Two-component ternary hybrid gel for battery assembly and preparation method of two-component ternary hybrid gel

Abstract

The invention belongs to the technical field of adhesives, and particularly relates to a two-component ternary hybrid adhesive for battery assembly and a preparation method thereof, the two-component ternary hybrid adhesive is characterized by comprising a component A and a component B; the component A comprises the following components in parts by weight: 45-75 parts of silane-terminated polyether resin, 5-10 parts of first acrylate, 0.1-5 parts of a first catalyst, 5-20 parts of a first epoxy curing agent, 10-30 parts of modified silane resin, 1-5 parts of a silane coupling agent containing carbon-carbon double bonds, 0.1-5 parts of a reducing agent, 1-10 parts of a first plasticizer and 1-30 parts of a first filler; the component B comprises the following components in parts by weight: 40-80 parts of epoxy resin, 5-25 parts of a second plasticizer, 0.1-5 parts of an oxidant, 1-3 parts of a second catalyst and 10-40 parts of a second filler; wherein a molecular chain of the modified silane resin comprises a silane group, a primary amine group and a (methyl) acryloyloxy group. The material system disclosed by the invention shows excellent aging resistance and overall mechanical property matching performance, and can fully meet strict requirements of a new energy automobile power battery assembly link on a structural bonding material in an extreme service environment, so that long-term safe operation of a power battery under a complex working condition is effectively guaranteed, and the service life of the power battery is prolonged.

Description

Technical Field

[0001] This invention relates to a two-component ternary hybrid adhesive for battery assembly and its preparation method, belonging to the field of adhesive technology. Background Technology

[0002] Silane-terminated polyether (MS) polymers are known for their excellent flexibility and low-temperature resistance, but their bulk strength and adhesive strength are relatively low. In contrast, epoxy polymers have higher bulk strength and adhesive strength, and excellent high-temperature resistance, but their flexibility is poor. Combining MS and epoxy resins through a two-component hybrid system can, to some extent, combine the flexibility of MS with the high strength of epoxy resin, thus exhibiting superior overall performance over a wide temperature range compared to single-component systems. Therefore, it is considered to have potential for application in the assembly of power batteries for new energy vehicles. However, existing MS-epoxy two-component hybrid systems still suffer from insufficient aging resistance after curing, especially in high-temperature and high-humidity environments, specifically manifested as a sharp decline in adhesive strength, bulk strength, and elongation at break. The reason for this is that effective chemical bonding between the two phases fails to form after curing, resulting in insufficient interfacial synergy. High-temperature and high-humidity environments easily weaken or even destroy intermolecular forces, leading to a significant decrease in mechanical properties such as adhesive strength, bulk strength, and elongation at break. This performance defect may cause the material to crack under extreme operating conditions, resulting in adhesive failure and potential safety risks. Summary of the Invention

[0003] In view of the above-mentioned technical problems in the prior art, the present invention provides a two-component ternary hybrid adhesive for battery assembly and a method for preparing the same.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a two-component ternary hybrid adhesive for battery assembly.

[0005] One objective of this invention is to provide a two-component ternary hybrid adhesive for battery assembly, characterized in that it comprises component A and component B; By weight, component A comprises the following components: 45-75 parts of silane-terminated polyether resin 5-10 parts of the first acrylate, 0.1 to 5 parts of the first catalyst, First epoxy curing agent: 5-20 parts 10-30 parts of modified silane resin, 1-5 parts of a silane coupling agent containing carbon-carbon double bonds. Reducing agent 0.1-5 parts, 1-10 parts of the first plasticizer, 1-30 parts of the first packing material; By weight, component B comprises the following components: 40-80 parts epoxy resin, 5-25 parts of the second plasticizer, Oxidizing agent 0.1-5 parts, 1-3 parts of the second catalyst The second filler is 10-40 parts; The modified silane resin contains silane groups, primary amino groups, and (meth)acryloyloxy groups on its molecular chain; The mass ratio of component A to component B is 1:0.8 to 1.2.

[0006] Furthermore, the raw materials for preparing the modified silane resin include a trifunctional epoxy, a second acrylate, a dimer acid, an epoxy silane coupling agent, and a second epoxy curing agent; wherein the molar ratio of the trifunctional epoxy, the second acrylate, the dimer acid, the epoxy silane coupling agent, and the second epoxy curing agent is 1:1 to 1.05:1 to 1.05:1 to 1.05:1 to 1.05.

[0007] Furthermore, the trifunctional epoxy refers to a substance containing three epoxy groups on its molecule, selected from at least one of trimethylolpropane triglycidyl ether, trimethylolethane triglycidyl ether, castor oil triglycidyl ether, propoxyglycerol triglycidyl ether, and glycerol triglycidyl ether, preferably a glycerol ether with a viscosity of less than 1000 mPa·s.

[0008] Furthermore, the second acrylate is acrylic acid (AA) or methacrylic acid (MAA).

[0009] Furthermore, the dimer acid is an unsaturated dimer acid or a hydrogenated dimer acid.

[0010] Furthermore, the epoxy silane coupling agent is selected from at least one of 3-glycidyl etheroxypropyltriethoxysilane, 3-glycidyl etheroxypropyltrimethoxysilane, 3-glycidyl etheroxypropylmethyldimethoxysilane, 3-glycidyl etheroxypropylmethyldiethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane, and 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane.

[0011] Furthermore, the second epoxy curing agent is polyetheramine.

[0012] Furthermore, the raw materials for preparing the modified silane resin also include a third catalyst and a free radical polymerization inhibitor.

[0013] Furthermore, the amount of the third catalyst added is 0.005%-2% of the total mass of the modified silane resin.

[0014] Furthermore, the third catalyst is selected from at least one of triphenylphosphine, 2-methylimidazole, 2-ethyl-4-methylimidazole, triethylamine, benzyltriethylammonium chloride, triphenylantimony, boron trifluoride-amine complex, and acetylacetone metal salts (such as zinc acetylacetone).

[0015] Furthermore, the amount of the free radical polymerization inhibitor added is 0.001%-1% of the total mass of the modified silane resin.

[0016] Furthermore, the free radical polymerization inhibitor is selected from at least one of hydroquinone, p-hydroxyanisole, 2,6-di-tert-butyl-p-cresol (BHT), 2-tert-butylhydroquinone, p-benzoquinone, tetrachlorobenzoquinone, m-dinitrobenzene, and phenothiazine.

[0017] Furthermore, the synthesis process of the modified silane resin includes the following steps: a. Add the trifunctional epoxy, free radical polymerization inhibitor, second acrylate and a portion of the third catalyst sequentially into reactor one, and react at 80-120℃ until the acid value is ≤0.2mgKOH / g; b. Add the dimer acid, epoxy silane coupling agent and the remaining third catalyst to reactor II and react at 80-120°C until the epoxy groups disappear; c. Add the product obtained from reactor 2 to reactor 1 and react at 80-120℃ until the acid value is ≤0.2mgKOH / g; d. Add the second epoxy curing agent to reactor one and react at 50-90°C until the epoxy groups disappear. Discharge the material to obtain the modified silane resin.

[0018] Furthermore, the silane-terminated polyether resin has a viscosity of 5000–30000 mPa·s at 25°C and a functionality of 2–3. Preferably, the silane-terminated polyether resin is selected from at least one of Wacker Chemie E10, E35, E925, and Kaneka Chemical SAX260, SAX400, SAX520, and SAX750.

[0019] Furthermore, the first acrylate is selected from acrylic acid (AA), N,N-dimethylacrylamide (DMAA), acrylmorpholine (ACMO), tetrahydrofuran acrylate (THFA), lauryl acrylate (LA), isobornyl acrylate (IBOA), isobornyl methacrylate (IBOMA), 1,4-butanediol diacrylate (BDDA), diethylene glycol dimethacrylate (DEGDMA), dipropylene glycol diacrylate (DPGDA), and 2-methyl-1,3-propanediol diacrylate (MPD). The product is selected from at least one of the following: DA), 1,3-butanediol diacrylate (BGDA), 1,3-butanediol dimethacrylate (BGDMA), neopentyl glycol diacrylate (NPGDA), 1,6-hexanediol dimethacrylate (HDDMA), 1,6-hexanediol diacrylate (HDDA), tricyclodecanediethanol diacrylate (DCPDA), trimethylolpropane triacrylate (TMPTA), pentaerythritol triacrylate (PET3A), and trimethylolpropane trimethacrylate (TMPTMA).

[0020] Furthermore, the first catalyst is selected from at least one of triphenylphosphine, tetrabutylammonium bromide, dimethylaniline, N,N-dimethylbenzylamine, triethylbenzylamine chloride, or 2,4,6-tris(dimethylaminomethyl)phenol (DMP-30).

[0021] Furthermore, the first epoxy curing agent is a polyetheramine; preferably, the first epoxy curing agent is selected from at least one of Huntsman's polyetheramine D4000, polyetheramine D2000, polyetheramine D400, polyetheramine D230, polyetheramine T5000 and polyetheramine T403.

[0022] Furthermore, the carbon-carbon double bond-containing silane coupling agent is selected from at least one of vinyltrimethoxysilane, vinyltris(2-methoxyethoxy)silane, 3-methacryloyloxypropyltrimethoxysilane, 7-octenyltrimethoxysilane, and 3-acryloyloxypropyltrimethoxysilane.

[0023] Furthermore, the reducing agent is selected from at least one of tetramethylthiourea, N,N-dimethyl-p-toluidine, N,N-dihydroxyethyl-p-toluidine, and butyraldehyde-aniline condensate.

[0024] Furthermore, the first plasticizer and the second plasticizer are each independently selected from at least one of polyether polyol, diisononyl phthalate, and diisodecyl phthalate, preferably polyether polyol.

[0025] Furthermore, the first filler and the second filler are each independently selected from at least one of calcium carbonate, alumina, aluminum hydroxide, and boron nitride. In order to make it easier to disperse into the system, reduce viscosity, and increase storage stability, fillers with surfaces treated with fatty acids or coupling agents are preferred.

[0026] Furthermore, the epoxy resin is selected from at least one of bisphenol A type epoxy resin, bisphenol F type epoxy resin, and bisphenol S type epoxy resin; Furthermore, the second catalyst is selected from at least one of dibutyltin dilaurate, stannous octoate, di-n-butylbis(acetylacetonyl)tin, chelated tin, bismuth (2-ethylhexanoate), bismuth neodecanoate, bismuth tetramethylpimecronate, and bismuth isooctanoate.

[0027] Furthermore, the oxidant is selected from at least one of benzoyl peroxide, lauroyl peroxide, and cumene hydroperoxide.

[0028] A second objective of this invention is to provide a method for preparing the aforementioned two-component ternary hybrid adhesive for battery assembly, comprising independently preparing component A and component B: The preparation of component A includes the following steps: mixing silane-terminated polyether resin, first acrylate, first catalyst, modified silane resin, silane coupling agent containing carbon-carbon double bonds, first epoxy curing agent, reducing agent, and first plasticizer; vacuum stirring for 0.5 to 1 hour at 20–35°C and vacuum degree ≤ -0.09 MPa; restoring atmospheric pressure by introducing dry nitrogen; adding first filler; and continuing vacuum stirring for 1 to 2 hours at 20–35°C and vacuum degree ≤ -0.09 MPa; and discharging to obtain component A. The preparation of component B includes the following steps: mixing epoxy resin, second plasticizer, oxidant, and second catalyst, and stirring under vacuum at 20-35℃ and vacuum degree ≤-0.09MPa for 1-2 hours, then introducing dry nitrogen to restore atmospheric pressure, adding second filler, and continuing to stir under vacuum at 20-35℃ and vacuum degree ≤-0.09MPa for 0.5-1 hours, and then discharging to obtain component B.

[0029] Furthermore, before adding the first or second packing material, the first and second packing materials need to be pretreated in a vacuum oven at 105-120°C and a vacuum degree ≤-0.09MPa for 3-5 hours.

[0030] The beneficial effects of this invention are as follows: The ternary hybrid adhesive provided by this invention combines the synergistic advantages of three curable components: silane-terminated polyether resin, epoxy resin, and acrylate. Specifically, this invention introduces a modified silane resin with ternary active sites of silane, primary amino, and (meth)acryloyloxy groups. This structure not only promotes the formation of a three-way interpenetrating network structure among the MS, epoxy, and acrylic components, but also establishes stable chemical bonds between different phases, achieving a true molecular-level synergistic effect among the three phases. Simultaneously, the long-chain dimer acid structure introduced into the modified silane resin significantly enhances the flexibility and hydrophobicity of the cured adhesive. The final product, after mixing and curing components A and B, exhibits excellent bulk strength, high elongation at break, and good adhesion to various substrates, especially excellent aging resistance, including long-term durability under harsh high-temperature and high-humidity environments. These comprehensive performance improvements enable the ternary hybrid adhesive of this invention to meet the assembly and use requirements of new energy vehicle power batteries under harsh operating conditions, significantly improving the safety and service life of the battery system. Detailed Implementation

[0031] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0032] Example 1 Preparation of modified silane resin S1: 302.36 g of trimethylolpropane triglycidyl ether, 0.4 g of p-hydroxyanisole (MEHQ), 86.09 g of methacrylic acid, and 1.2 g of triphenylphosphine were sequentially added to reactor one and reacted at 110 °C until the acid value was ≤0.2 mg KOH / g; 570 g of hydrogenated dimer acid, 236.34 g of 3-glycidyl etheroxypropyltrimethoxysilane, and 2.4 g of triphenylphosphine were added to reactor two and reacted at 110 °C until the epoxy groups disappeared; 808 g of the product obtained from reactor two was added to reactor one and reacted at 110 °C until the acid value was ≤0.2 mg KOH / g; 4000 g of polyetheramine D4000 was added to reactor one and reacted at 60 °C until the epoxy groups disappeared. The product was then discharged to obtain modified silane resin S1.

[0033] Preparation of Component A: 65g of silane-terminated polyether resin Zhongyuan SAX520, 6g of lauryl acrylate, 2g of DMP-30, 8g of polyether amine D230, 15g of modified silane resin S1, 2g of 3-methacryloyloxypropyltrimethoxysilane, 0.2g of N,N-dimethyl-p-toluidine, and 2g of polyether polyol PPG400 were added to a reaction vessel and stirred under vacuum at 25°C and a vacuum degree ≤-0.09MPa for 1h. Then, the mixture was dried and depressurized with nitrogen, and 20g of nano-calcium carbonate filler was added. The mixture was stirred under vacuum at 25°C and a vacuum degree ≤-0.09MPa for 1h. Component A was then discharged. Preparation of Component B: 60 g of bisphenol A type epoxy resin E51, 8 g of polyether polyol PPG1000, 0.2 g of BPO (benzoyl peroxide), and 1.5 g of stannous octoate were added to a reaction vessel and stirred under vacuum for 1 h at 25 °C and a vacuum degree ≤ -0.09 MPa. Then, the mixture was dried and depressurized with nitrogen, and 20 g of nano-calcium carbonate filler was added. The mixture was stirred under vacuum for 1 h at 25 °C and a vacuum degree ≤ -0.09 MPa. Component B was then discharged.

[0034] Example 2 Preparation of modified silane resin: Same as resin S1 in Example 1.

[0035] Preparation of component A: Preparation of Component A: 55g of silane-terminated polyether resin Zhongyuan SAX520, 6g of lauryl acrylate, 2g of DMP-30, 8g of polyether amine D230, 25g of modified silane resin S1, 2g of 3-methacryloyloxypropyltrimethoxysilane, 0.2g of N,N-dimethyl-p-toluidine, and 2g of polyether polyol PPG400 were added to a reaction vessel and stirred under vacuum at 25°C and a vacuum degree ≤-0.09MPa for 1h. Then, the mixture was dried and depressurized with nitrogen, and 20g of nano-calcium carbonate filler was added. The mixture was stirred under vacuum at 25°C and a vacuum degree ≤-0.09MPa for 1h. Component A was then discharged. Preparation of component B: Same as in Example 1 Example 3 Preparation of modified silane resin S3: Replace 4000g of polyetheramine D4000 in resin S1 of Example 1 with 2000g of polyetheramine D2000, and the rest is the same as in Example 1. Preparation of component A: Replace resin S1 in the preparation of component A of Example 1 with resin S3, and the rest is the same as in Example 1.

[0036] Preparation of component B: Same as in Example 1 Example 4 Preparation of modified silane resin S4: 302.36 g of trimethylolpropane triglycidyl ether, 0.4 g of p-hydroxyanisole (MEHQ), 86.09 g of methacrylic acid, and 1.2 g of triphenylphosphine were sequentially added to reactor one and reacted at 110 °C until the acid value was ≤0.2 mg KOH / g; 570 g of hydrogenated dimer acid, 220.34 g of 3-glycidyl etheroxypropylmethyldimethoxysilane, and 2.4 g of triphenylphosphine were added to reactor two and reacted at 110 °C until the epoxy groups disappeared; 792 g of the product obtained from reactor two was added to reactor one and reacted at 110 °C until the acid value was ≤0.2 mg KOH / g; 2000 g of polyetheramine D2000 was added to reactor one and reacted at 60 °C until the epoxy groups disappeared. The product was then discharged to obtain modified silane resin S4.

[0037] Preparation of component A: Resin S1 in the preparation of component A in Example 1 was replaced with resin S4, and the rest was the same as in Example 1.

[0038] Preparation of component B: Same as in Example 1 Comparative Example 1 Preparation of modified silane resin C1: 302.36 g of trimethylolpropane triglycidyl ether, 0.4 g of p-hydroxyanisole (MEHQ), and 208.3 g of isobornyl acrylate were added to reactor one and stirred until homogeneous. 146.14 g of adipic acid, 236.34 g of 3-glycidyl etheroxypropyltrimethoxysilane, and 1.2 g of triphenylphosphine were added to reactor two and reacted at 115 °C until the epoxy groups disappeared. 383 g of the product obtained from reactor two was added to reactor one and reacted at 115 °C until the acid value was ≤0.2 mgKOH / g. 4000 g of polyetheramine D4000 was added to reactor one and reacted at 60 °C until the epoxy groups disappeared. The product was discharged to obtain modified silane resin C1.

[0039] Preparation of component A: Resin S1 in the preparation of component A in Example 1 was replaced with resin C1, and the rest was the same as in Example 1.

[0040] Preparation of component B: Same as in Example 1.

[0041] Comparative Example 2 Preparation of modified silane resin C2: 302.36 g of trimethylolpropane triglycidyl ether, 0.4 g of p-hydroxyanisole (MEHQ), 172.18 g of methacrylic acid, and 1.2 g of triphenylphosphine were sequentially added to reactor one and reacted at 115 °C until the acid value was ≤0.2 mg KOH / g. 4000 g of polyetheramine D4000 was then added to reactor one and reacted at 60 °C until the epoxy groups disappeared. The product was discharged to obtain modified silane resin C2.

[0042] Preparation of component A: Resin S1 in the preparation of component A in Example 1 was replaced with resin C2, and the rest was the same as in Example 1.

[0043] Preparation of component B: Same as in Example 1.

[0044] Comparative Example 3 Preparation of modified silane resin C3: 302.36 g of trimethylolpropane triglycidyl ether, 0.4 g of p-hydroxyanisole (MEHQ), 86.09 g of methacrylic acid, and 1.2 g of triphenylphosphine were sequentially added to reactor one and reacted at 115 °C until the acid value was ≤0.2 mg KOH / g. 292.3 g of adipic acid, 472.68 g of 3-glycidyl etheroxypropyltrimethoxysilane, and 2.3 g of triphenylphosphine were added to reactor two and reacted at 115 °C until the epoxy groups disappeared. 767 g of the product obtained from reactor two was added to reactor one and reacted at 115 °C until the epoxy groups disappeared. The product was then discharged to obtain modified silane resin C3.

[0045] Preparation of component A: Resin S1 in the preparation of component A in Example 1 was replaced with resin C3, and the rest was the same as in Example 1.

[0046] Preparation of component B: Same as in Example 1.

[0047] Comparative Example 4 Preparation of Component A: 80g of silane-terminated polyether resin Zhongyuan SAX520, 6g of lauryl acrylate, 2g of DMP-30, 8g of polyetheramine D230, 2g of 3-methacryloyloxypropyltrimethoxysilane, 0.2g of N,N-dimethyl-p-toluidine, and 2g of polyether polyol PPG400 were added to a reaction vessel and stirred under vacuum for 1h at 25℃ and a vacuum degree ≤-0.09MPa. Then, the mixture was dried and depressurized with nitrogen, and 20g of nano-calcium carbonate filler was added. The mixture was stirred under vacuum for 1h at 25℃ and a vacuum degree ≤-0.09MPa. Component A was then discharged.

[0048] Preparation of component B: Same as in Example 1.

[0049] Performance testing Components A and B from Examples 1-4 and Comparative Examples 1-4 were weighed at a mass ratio of 1:1, mixed evenly to form a two-component hybrid adhesive, and cured for 7 days at 25°C and 50% humidity to allow it to fully cure for subsequent performance testing.

[0050] Tensile strength and elongation at break: Tested in accordance with GB / T528-2009 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber.

[0051] Shear strength: Tested according to GB / T7124-2008 Determination of tensile shear strength of adhesives (rigid material to rigid material). The substrate selected for this test is 3003 aluminum.

[0052] High temperature and high humidity aging test: The two-component hybrid adhesive cured samples obtained from the examples and comparative examples were placed in a constant temperature and humidity chamber at 85°C and 85% humidity for 1200 hours for aging. After being taken out, they were placed at 25°C and 50% humidity for 4 hours for testing.

[0053] The test results are shown in Table 1: Table 1 Performance Test Data of Examples and Comparative Examples

[0054] The ternary hybrid adhesive provided by this invention significantly outperforms conventional binary hybrid systems in terms of overall performance. Specifically, it exhibits higher bulk strength, elongation at break, and shear strength, and maintains excellent performance stability, especially under high-temperature and high-humidity aging conditions, with a significantly improved retention rate of various mechanical properties. This material system demonstrates superior aging resistance and overall mechanical property matching, fully meeting the stringent requirements of structural bonding materials in the assembly of new energy vehicle power batteries under extreme service environments. This effectively ensures the long-term safe operation of power batteries under complex operating conditions and extends their service life.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A two-component ternary hybrid adhesive for battery assembly, characterized in that, Includes component A and component B; By weight, component A comprises the following components: 45-75 parts of silane-terminated polyether resin 5-10 parts of the first acrylate, 0.1 to 5 parts of the first catalyst, First epoxy curing agent: 5-20 parts 10-30 parts of modified silane resin, 1-5 parts of a silane coupling agent containing carbon-carbon double bonds. Reducing agent 0.1-5 parts, 1-10 parts of the first plasticizer, 1-30 parts of the first packing material; By weight, component B comprises the following components: 40-80 parts epoxy resin, 5-25 parts of the second plasticizer, Oxidizing agent 0.1-5 parts, 1-3 parts of the second catalyst The second filler is 10-40 parts; The modified silane resin contains silane groups, primary amino groups, and (meth)acryloyloxy groups on its molecular chain; The mass ratio of component A to component B is 1:0.8 to 1.

2.

2. The two-component ternary hybrid adhesive for battery assembly according to claim 1, characterized in that, The raw materials for preparing the modified silane resin include a trifunctional epoxy, a second acrylate, a dimer acid, an epoxy silane coupling agent, and a second epoxy curing agent; wherein the molar ratio of the trifunctional epoxy, the second acrylate, the dimer acid, the epoxy silane coupling agent, and the second epoxy curing agent is 1:1 to 1.05:1 to 1.05:1 to 1.05:1 to 1.

05.

3. The two-component ternary hybrid adhesive for battery assembly according to claim 2, characterized in that, The trifunctional epoxy is selected from at least one of trimethylolpropane triglycidyl ether, trimethylolethane triglycidyl ether, castor oil triglycidyl ether, propoxyglycerol triglycidyl ether, and glycerol triglycidyl ether. The second acrylate is acrylic acid or methacrylic acid; The dimer acid is an unsaturated dimer acid or a hydrogenated dimer acid; The epoxy silane coupling agent is selected from at least one of 3-glycidyl etheroxypropyltriethoxysilane, 3-glycidyl etheroxypropyltrimethoxysilane, 3-glycidyl etheroxypropylmethyldimethoxysilane, 3-glycidyl etheroxypropylmethyldiethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane and 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane; The second epoxy curing agent is polyetheramine.

4. The two-component ternary hybrid adhesive for battery assembly according to claim 1, characterized in that, The silane-terminated polyether resin has a viscosity of 5000–30000 mPa·s at 25°C and a functionality of 2–3.

5. The two-component ternary hybrid adhesive for battery assembly according to claim 1, characterized in that, The first acrylate is selected from at least one of acrylic acid, N,N-dimethylacrylamide, acrylamide, tetrahydrofuran acrylate, lauryl acrylate, isobornyl acrylate, isobornyl methacrylate, 1,4-butanediol diacrylate, diethylene glycol dimethacrylate, dipropylene glycol diacrylate, 2-methyl-1,3-propanediol diacrylate, 1,3-butanediol diacrylate, 1,3-butanediol dimethacrylate, neopentyl glycol diacrylate, 1,6-hexanediol dimethacrylate, 1,6-hexanediol diacrylate, tricyclodecanediethanol diacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, and trimethylolpropane trimethacrylate.

6. The two-component ternary hybrid adhesive for battery assembly according to claim 1, characterized in that, The first catalyst is selected from at least one of triphenylphosphine, tetrabutylammonium bromide, dimethylaniline, N,N-dimethylbenzylamine, triethylbenzylamine chloride, or 2,4,6-tris(dimethylaminomethyl)phenol; The first epoxy curing agent is polyetheramine.

7. The two-component ternary hybrid adhesive for battery assembly according to claim 1, characterized in that, The carbon-carbon double bond-containing silane coupling agent is selected from at least one of vinyltrimethoxysilane, vinyltris(2-methoxyethoxy)silane, 3-methacryloyloxypropyltrimethoxysilane, 7-octenyltrimethoxysilane, and 3-acryloyloxypropyltrimethoxysilane. The reducing agent is selected from at least one of tetramethylthiourea, N,N-dimethyl-p-toluidine, N,N-dihydroxyethyl-p-toluidine, and butyraldehyde-aniline condensate.

8. The two-component ternary hybrid adhesive for battery assembly according to claim 1, characterized in that, The first plasticizer and the second plasticizer are each independently selected from at least one of polyether polyol, diisononyl phthalate, and diisodecyl phthalate; The first packing and the second packing are each independently selected from at least one of calcium carbonate, aluminum oxide, aluminum hydroxide, and boron nitride.

9. The two-component ternary hybrid adhesive for battery assembly according to claim 1, characterized in that, In component B, The epoxy resin is selected from at least one of bisphenol A type epoxy resin, bisphenol F type epoxy resin and bisphenol S type epoxy resin; The second catalyst is selected from at least one of dibutyltin dilaurate, stannous octanoate, di-n-butylbis(acetylacetonyl)tin, chelated tin, bismuth (2-ethylhexanoate), bismuth neodecanoate, bismuth tetramethylpimecronate, and bismuth isooctanoate. The oxidant is selected from at least one of benzoyl peroxide, lauroyl peroxide, and cumene hydroperoxide.

10. A method for preparing a two-component ternary hybrid adhesive for battery assembly according to any one of claims 1 to 9, characterized in that, This includes the independent preparation of component A and component B: The preparation of component A includes the following steps: mixing silane-terminated polyether resin, first acrylate, first catalyst, modified silane resin, silane coupling agent containing carbon-carbon double bonds, first epoxy curing agent, reducing agent, and first plasticizer; after vacuum stirring, restoring to normal pressure; adding first filler; and discharging after vacuum stirring to obtain component A. The preparation of component B includes the following steps: mixing epoxy resin, second plasticizer, oxidant and second catalyst, stirring under vacuum and then restoring to normal pressure, adding second filler, stirring under vacuum and then discharging to obtain component B.

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