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CN109397823A - A kind of battery case encapsulating material and preparation method thereof - Google Patents

A kind of battery case encapsulating material and preparation method thereof Download PDF

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Publication number
CN109397823A
CN109397823A CN201710710176.XA CN201710710176A CN109397823A CN 109397823 A CN109397823 A CN 109397823A CN 201710710176 A CN201710710176 A CN 201710710176A CN 109397823 A CN109397823 A CN 109397823A
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CN
China
Prior art keywords
layer
battery case
encapsulating material
nylon
case encapsulating
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.)
Pending
Application number
CN201710710176.XA
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Chinese (zh)
Inventor
刘立健
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201710710176.XA priority Critical patent/CN109397823A/en
Publication of CN109397823A publication Critical patent/CN109397823A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/30—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being formed of particles, e.g. chips, granules, powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/048—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/02—Synthetic macromolecular particles
    • B32B2264/0214—Particles made of materials belonging to B32B27/00
    • B32B2264/0257—Polyolefin particles, e.g. polyethylene or polypropylene homopolymers or ethylene-propylene copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • 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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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The invention discloses a kind of battery case encapsulating materials and preparation method thereof, the battery case encapsulating material, it is made of composite material, the composite material is from outside to inside successively are as follows: nylon layer, first bonding agents layer, basalt fibre layer of cloth, second bonding agents layer, cast polypropylene layer.On roller head machine, it will be pressed between three kinds of nylon, basalt fiber cloth, cast polypropylene film materials by binder bonding to obtain the final product.First bonding agents layer, second bonding agents layer are all made of binder；Bonding agent uses one of solvent type adhesive, aqueous type adhesive, Emulsion Adhesive, heat-fusible adhesive or any combination.Battery case encapsulating material of the invention has the characteristics that heat preservation, fire-retardant, insulation, acidproof and anticorrosive, wear-resistant, long service life composite material, it is ensured that electric leakage and the phenomenon of leakage do not occur for normal battery operation under high temperature and low temperature environment.

Description

A kind of battery case encapsulating material and preparation method thereof
Technical field
The present invention relates to property material for battery shell field, specifically a kind of battery case encapsulating material and preparation method thereof.
Background technique
The use of rechargeable battery is increasingly deep into everyone life, everyone be unable to do without various digital products.And Most digital products all be unable to do without rechargeable battery, such as mobile phone, digital camera, video camera and Portable lighting device Deng.Furthermore.With the development of science and technology.The use scope of rechargeable battery is further extensive.Such as electric car new science and technology product also from Do not open rechargeable battery.Current battery frequently more needs outdoor use, provides energy for various outdoor works.Therefore, battery Become one of the core content of its competitiveness for the adaptive capacity under condition of different temperatures；In addition to for battery plus-negative plate material Except the improvement of material, also there are increasingly higher demands to the protection shell of these materials.It, can be tight if the shell of battery is unqualified Ghost image rings the use of battery: as when the temperature is excessively high, battery itself works a large amount of heat production, it is easy to self-destruction phenomenon occur, threaten work Make the safety of personnel；If temperature is too low, the electrolyte of inside battery solidifies, and also prevents the normal work of battery.Therefore, it protects Temperature is functional, fire retardant insulating and anticorrosive, and wear-resisting durable battery case is the product that existing market needs.
Summary of the invention
The purpose of the present invention is to provide a kind of battery case encapsulating materials and preparation method thereof, to solve above-mentioned background skill The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of battery case encapsulating material, is made of composite material, and the composite material is from outside to inside successively are as follows: nylon layer, first Adhesive layer, basalt fibre layer of cloth, second bonding agents layer, cast polypropylene layer.
As a further solution of the present invention: first bonding agents layer, second bonding agents layer are all made of binder；Bonding agent is adopted With one of solvent type adhesive, aqueous type adhesive, Emulsion Adhesive, heat-fusible adhesive or any combination；Solvent Type adhesive includes butadiene-styrene rubber, polyurethane, nitrocellulose, polyvinyl acetate；Aqueous type adhesive includes ethene-vinyl acetate Copolymer, ethylene-acrylic acid copolymer；Emulsion Adhesive includes vinyl acetate resin, acrylic resin；Heat-fusible adhesive Including polystyrene, polyurethane, polyacrylate.
As a further solution of the present invention: the nylon layer with a thickness of 25 μm -30 μm.
As a further solution of the present invention: nylon layer uses nylon, and the density of nylon is 1.15 g/cm3。
As a further solution of the present invention: the first binder layer with a thickness of 2 μm -3 μm, second binder Layer with a thickness of 2 μm -3 μm.
As a further solution of the present invention: the basalt fibre layer of cloth with a thickness of 40 μm.
As a further solution of the present invention: basalt fibre layer of cloth uses basalt fiber cloth, basalt fiber cloth Density is 100g/m2-110g/m2。
As a further solution of the present invention: the cast polypropylene layer with a thickness of 20 ~ 40 μm.
As a further solution of the present invention: cast polypropylene layer uses cast polypropylene.
A kind of preparation method of battery case encapsulating material, be on roller head machine, by nylon, basalt fiber cloth, It is pressed between three kinds of materials of cast polypropylene film by binder bonding to obtain the final product.
Fypro is commonly called as nylon (Nylon), English name Polyamide(abbreviation PA), 1.15 g/cm of density3; It is the thermoplastic resin general name for containing recurring amide radical group-[NHCO]-on molecular backbone, Fypro performance polyamide The most prominent advantage of (nylon) fiber is wearability, is secondly its elasticity, and elastic recovery rate can match in excellence or beauty wool.
Basalt continuous fiber cloth is to be passed through to be formed by weaving by basalt continuous fiber, then coated with resin.Basalt connects Continuous fiber cloth is a kind of pure natural green product, has brilliant thermal stability (high temperature resistant and ultralow temperature)；Excellent Chemical stability (acid and alkali-resistance, waterproof, low suction temperature, radiation protection), excellent physical property (intensity is high, electrical isolation).Basalt connects Continuous fiber is using pure natural volcanic rock raw material, the preparation of nobody work or synthetic additive and auxiliary material, in high temperature melting The high-performance fiber produced after melting.Basalt is a kind of high performance volcanic rock component, and this special silicate makes basalt Continuous fiber has excellent chemical resistance, especially has the advantages that alkali resistance.Basaltic chemical component is similar to gabbro, Mainly silica, aluminum oxide, iron oxide, calcium oxide, magnesia (there are also a small amount of potassium oxide, sodium oxide molybdena), wherein SiO2Content highest, general content is between 45%~52%, wherein K2O+Na2O content is slightly higher compared with intrusive rock, CaO, Fe2O3+FeO、 Content of MgO is slightly lower compared with intrusive rock.Basalt bulk density is 2.8~3.3g/cm3, its compressive strength of compact structure is very big, can Reach 300MPa, it is even higher.
High performance water-borne polyurethane adhesive has the following characteristics that water-fast, resistance to medium is good.Adhesive strength is high, initial bonding strength Greatly.Good storage stability.Freeze-thawing resistant, higher temperature resistant.Rate of drying is very fast, and film forming is good under low ambient temperature.It applies Work technique is good.
Cast polypropylene film is generally multilayer mutual aid film, is to form sheet material through co-extrusion by PP GRANULES, has matter Gently, nontoxic, odorless, moisture-proof, high mechanical strength, good stability of the dimension, the advantages that printing performance is good.With good luster, barrier The advantages that property is good, shock strength is high, low temperature resistant.
Compared with prior art, the beneficial effects of the present invention are:
Battery case encapsulating material of the invention has heat preservation, fire-retardant, insulation, acidproof and anticorrosive, wear-resistant, long service life The features such as composite material, it is ensured that normal battery operation under high temperature and low temperature environment, do not occur electric leakage and the phenomenon of leakage.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
In figure: 1- nylon layer, 2- first bonding agents layer, 3- basalt fibre layer of cloth, 4- second bonding agents layer, 5- cast polypropylene Layer.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the scope of protection of the invention.
Embodiment 1
Referring to Fig. 1, a kind of battery case encapsulating material is made of composite material in the embodiment of the present invention, the composite material by Outside successively in are as follows: nylon layer 1, first bonding agents layer 2, basalt fibre layer of cloth 3, second bonding agents layer 4, cast polypropylene layer 5.On roller head machine, it will be bonded between three kinds of nylon, basalt fiber cloth, cast polypropylene film materials by binder It presses to obtain the final product.
The nylon layer 1 with a thickness of 25 μm -30 μm.Nylon layer uses nylon, and the density of nylon is 1.15 g/cm3.Institute State basalt fibre layer of cloth 3 with a thickness of 40 μm.Basalt fibre layer of cloth 3 uses basalt fiber cloth, basalt fiber cloth Density is 100g/m2-110g/m2.The cast polypropylene layer 5 with a thickness of 20 ~ 40 μm.Cast polypropylene layer is poly- using curtain coating Propylene.
The first binder layer 2 with a thickness of 2 μm -3 μm, second adhesive layer 4 with a thickness of 2 μm -3 μm.The One adhesive layer 2, second bonding agents layer 4 are all made of binder；Bonding agent uses butadiene-styrene rubber.
Embodiment 2
It is same as Example 1 in the embodiment of the present invention.The difference is that bonding agent uses polyurethane, ethylene-vinyl acetate copolymer Mixing.
Embodiment 3
It is same as Example 1 in the embodiment of the present invention.The difference is that bonding agent uses ethylene-acrylic acid copolymer, acrylic acid tree The mixing of rouge, polyurethane, polyacrylate.
Embodiment 4
It is same as Example 1 in the embodiment of the present invention.The difference is that bonding agent uses polystyrene.
Embodiment 5
It is same as Example 1 in the embodiment of the present invention.The difference is that bonding agent uses nitrocellulose, polyvinyl acetate, second The mixing of alkene-acetate ethylene copolymer, ethylene-acrylic acid copolymer, vinyl acetate resin, polyurethane.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (10)

1. a kind of battery case encapsulating material, is made of composite material, which is characterized in that the composite material is from outside to inside successively Are as follows: nylon layer, first bonding agents layer, basalt fibre layer of cloth, second bonding agents layer, cast polypropylene layer.
2. battery case encapsulating material according to claim 1, which is characterized in that first bonding agents layer, second bonding agents Layer is all made of binder；Bonding agent uses solvent type adhesive, aqueous type adhesive, Emulsion Adhesive, heat-fusible adhesive One of or any combination；Solvent type adhesive includes butadiene-styrene rubber, polyurethane, nitrocellulose, polyvinyl acetate；Water-soluble Adhesive includes ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer；Emulsion Adhesive include vinyl acetate resin, Acrylic resin；Heat-fusible adhesive includes polystyrene, polyurethane, polyacrylate.
3. battery case encapsulating material according to claim 1, which is characterized in that the nylon layer with a thickness of 25 μm- 30μm。
4. battery case encapsulating material according to claim 1, which is characterized in that nylon layer use nylon, nylon it is close Degree is 1.15 g/cm3。
5. battery case encapsulating material according to claim 1, which is characterized in that the first binder layer with a thickness of 2 μm -3 μm, second adhesive layer with a thickness of 2 μm -3 μm.
6. battery case encapsulating material according to claim 1, which is characterized in that the thickness of the basalt fibre layer of cloth It is 40 μm.
7. battery case encapsulating material according to claim 1, which is characterized in that basalt fibre layer of cloth uses basalt Fiber cloth, the density of basalt fiber cloth are 100g/m2-110g/m2。
8. battery case encapsulating material according to claim 1, which is characterized in that the cast polypropylene layer with a thickness of 20~40μm。
9. battery case encapsulating material according to claim 1, which is characterized in that cast polypropylene layer is using curtain coating poly- third Alkene.
10. a kind of preparation method of the battery case encapsulating material as described in claim 1-9 is any, which is characterized in that rolling On pressing machine, will be by binder bonding pressing between three kinds of nylon, basalt fiber cloth, cast polypropylene film materials ?.
CN201710710176.XA 2017-08-18 2017-08-18 A kind of battery case encapsulating material and preparation method thereof Pending CN109397823A (en)

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* Cited by examiner, † Cited by third party
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CN110311064A (en) * 2019-06-19 2019-10-08 华富(江苏)锂电新技术有限公司 A kind of lithium ion battery cylindrical shell and preparation method thereof with heating function

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CN105070851A (en) * 2015-08-16 2015-11-18 苏州锂盾储能材料技术有限公司 Special high-obstruction packaging film for polymer lithium ion batteries
CN205177921U (en) * 2015-12-11 2016-04-20 上海励润复合材料有限公司 High strength, lightweight battery box
CN106848133A (en) * 2017-01-23 2017-06-13 上海航秦新材料有限责任公司 A kind of composite fireproof battery bag for electric automobile and preparation method thereof
CN206301844U (en) * 2016-11-23 2017-07-04 廖雪光 A kind of lithium battery is packed for steel plastic compount film

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Publication number Priority date Publication date Assignee Title
CN105070851A (en) * 2015-08-16 2015-11-18 苏州锂盾储能材料技术有限公司 Special high-obstruction packaging film for polymer lithium ion batteries
CN205177921U (en) * 2015-12-11 2016-04-20 上海励润复合材料有限公司 High strength, lightweight battery box
CN206301844U (en) * 2016-11-23 2017-07-04 廖雪光 A kind of lithium battery is packed for steel plastic compount film
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110311064A (en) * 2019-06-19 2019-10-08 华富(江苏)锂电新技术有限公司 A kind of lithium ion battery cylindrical shell and preparation method thereof with heating function

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