CN107443841A - A kind of lithium battery casing and the method that lithium battery is made using lithium battery casing - Google Patents

A kind of lithium battery casing and the method that lithium battery is made using lithium battery casing Download PDF

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Publication number
CN107443841A
CN107443841A CN201710710177.4A CN201710710177A CN107443841A CN 107443841 A CN107443841 A CN 107443841A CN 201710710177 A CN201710710177 A CN 201710710177A CN 107443841 A CN107443841 A CN 107443841A
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China
Prior art keywords
lithium battery
layer
battery casing
thickness
density
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CN201710710177.4A
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Chinese (zh)
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刘立健
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Individual
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Individual
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Priority to CN201710710177.4A priority Critical patent/CN107443841A/en
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    • 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
    • B32B5/02—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 structural features of 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
    • B32B27/12—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
    • 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
    • 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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • 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 of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery 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
    • 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
    • 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
    • B32B2307/558—Impact strength, toughness
    • 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
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The method of lithium battery is made the invention discloses a kind of lithium battery casing and using lithium battery casing, the lithium battery casing, is made of Black Warrior film, each layer that Black Warrior film includes from top to bottom is respectively：Nylon layer, the first adhesive layer, basalt fibre layer of cloth, the second adhesive layer, un-stretched polypropylene film layer.The thickness of nylon layer is 25 μm 30 μm, and density is 1.15 g/cm3.The thickness of first adhesive layer is 2 μm 3 μm, and the binding agent density used is 2 6g/m2.The thickness of the basalt fibre layer of cloth is 40 μm, density 100g/m2‑110g/m2.The thickness of second adhesive layer is 2 μm 3 μm, and the thickness of un-stretched polypropylene film layer is 20 ~ 40 μm, density 0.92g/cm3.The battery case that the lithium battery casing of the present invention is made on rigid and corrosion-resistant, cost better than all metals and nonmetallic organic material, convenient processing, the dangerous situation of combustion explosion can be also blocked, its fire origin is blocked in battery shells, reduces loss.

Description

A kind of lithium battery casing and the method that lithium battery is made using lithium battery casing
Technical field
The present invention relates to technical field of battery production, lithium is made in specifically a kind of lithium battery casing and use lithium battery casing The method of battery.
Background technology
Battery container is surrounded by inside and outside two curved surfaces, and thickness t is much smaller than middle face minimum profile curvature radius R and planar dimension Laminated structure, it is shell, the general name of middle thick shell.Mainly there are following a few classes, plastic casing, section aluminum shell, metal plate in the market Golden shell body, Stainless Steel Shell etc..Shell refers to the housing that t/R is less than 0.05.
Housing is resisted mainly with along the equally distributed mid surface stress of thickness, rather than with the bending stress along thickness change External load.This Internal Forces of housing enable it more fully to utilize the strength of materials than flat board, so as to be held with bigger Loading capability.
The category of shell theory category applied elasticity, need to be outside Elasticity basic assumption, then quotes new hypothesis. It includes theory of thin shell and middle thick shell theory.
With the continuous development of lithium electricity new energy technology, China or even the world have started the research and development wave of lithium electricity relevant industries Tide, on the research of novel lithium battery housing, and its importance.Traditional battery container is faced with two hang-ups, uses Lithium battery casing of the metal as main material, costly, weight is big.Therefore, notice, is transferred to by numerous professionals Develop low quality, low cost, on high-strength novel lithium battery casing.
Following lithium battery casing investigation of materials direction should be polymer, wherein, Black Warrior film is a kind of most potential Material, a kind of lithium battery casing are non-stretched poly- using nylon, polyurethane adhesive, basalt fiber cloth, polyurethane adhesive Polypropylene film layering apply it is viscous forms, basalt continuous fiber is use pure natural volcanic rock raw material, the preparation of nobody work or Synthetic additive and auxiliary material, the high-performance fiber produced after high-temperature fusion.
At present, the technology of existing manufacture lithium battery polymeric shells, however it remains low intensity, the shortcomings that poor toughness, example Such as using single polypropylene as material, this housing collides to the external world and extruding ability to bear is very poor, in actual use, Ftracture leakage, setting housing fragmentation are likely to, also, the ageing resistance of the housing of existing process manufacture, resistant of high or low temperature are all Preferable effect is not reached.
The content of the invention
The method of lithium battery, solution are made it is an object of the invention to provide a kind of lithium battery casing and using lithium battery casing The problem of conventional batteries of having determined case weight is big, capacity is small, cost is high.
To achieve the above object, the present invention provides following technical scheme：
A kind of lithium battery casing, it is made of Black Warrior film, each layer that Black Warrior film includes from top to bottom is respectively：Nylon layer, first Adhesive layer, basalt fibre layer of cloth, the second adhesive layer, un-stretched polypropylene film layer.
As the further scheme of the present invention：The thickness of the nylon layer is 25 μm -30 μm.
As the further scheme of the present invention：Nylon layer uses nylon, and the density of nylon is 1.15 g/cm3。
As the further scheme of the present invention：The thickness of first adhesive layer is 2 μm -3 μm, and the first adhesive layer is adopted With binding agent, binding agent density is 2-6g/m2。
As the further scheme of the present invention：The thickness of the basalt fibre layer of cloth is 40 μm.
As the further scheme of the present invention：Basalt fibre layer of cloth uses basalt fiber cloth, basalt fiber cloth Density is 100g/m2-110g/m2。
As the further scheme of the present invention：The thickness of second adhesive layer is 2 μm -3 μm, and the second adhesive layer is adopted With binding agent, the density of binding agent is 2-6g/m2。
As the further scheme of the present invention：The thickness of the un-stretched polypropylene film layer is 20 ~ 40 μm.
As the further scheme of the present invention：Un-stretched polypropylene film layer uses un-stretched polypropylene film, non-stretched The density of polypropylene film is 0.92g/cm3。
Another object of the present invention is to provide a kind of preparation method of lithium battery, comprises the following steps：
1）Preparation needs the battery core of battery pack shell；
2）Black Warrior film is conveyed into punching and cheats machine, after rushing hole machine punching hole, obtains lithium battery casing semi-finished product, lithium battery casing half into Hole and battery core on product is in the same size；
3）Battery core is put into the lithium battery casing semi-finished product after the completion of punching is cheated using top side seal machine, top side seal machine is automatically lithium electricity Seal pond housing semi-finished product doubling top side；
4）The packaging to battery core is completed, is produced.
Fypro is commonly called as nylon（Nylon）, English name Polyamide（Abbreviation PA）, the g/cm of density 1.153;It is On molecular backbone containing recurring amide radical group-[NHCO]-thermoplastic resin general name, Fypro performance polyamide (Buddhist nun Dragon) fiber it is most prominent the advantages of be wearability, next is its elasticity, and its 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 is coated with resin.Basalt connects Continuous fiber cloth is a kind of pure natural green product, has remarkable heat endurance（High temperature resistant and ultralow temperature）；Excellent Chemical stability（Acid and alkali-resistance, waterproof, low suction temperature, radiation proof）, excellent physical property（Intensity is high, electric insulation）.Basalt connects Continuous fiber is to use pure natural volcanic rock raw material, and nobody work is prepared 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, this special silicate, makes basalt Continuous fiber has excellent chemical resistance, especially has the advantages of alkali resistance.Basaltic chemical composition is similar to gabbro, Mainly silica, alundum (Al2O3), iron oxide, calcium oxide, magnesia（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 lower slightly 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, even more high.
Binding agent has the characteristics that:It is water-fast, resistance to medium is good.Adhesive strength is high, and initial bonding strength is big.Good storage is stable Property.Freeze-thawing resistant, higher temperature resistant.Rate of drying is very fast, and film forming is good under low ambient temperature.Construction technology is good.
Un-stretched polypropylene film (CPP) has good heat sealability, chemical stability, can resist many media (such as： Acid, alkali, salty, oily, wine, fragrant material etc.）Corrosion, and nonpoisonous and tasteless, safety and sanitation are good.Its heat sealability is excellent, compares HDPE Heat resistance is more preferable, and maximum operation (service) temperature is up to 145 °C.
Compared with prior art, the beneficial effects of the invention are as follows：
The invention provides a kind of preparation method of lithium battery casing, the lithium battery casing passes through using Black Warrior film as matrix material Cut pad it is molded, lithium battery casing semi-finished product are made in the technique；After being housed to battery core, top side seal shaping lithium battery casing is carried out And the battery with pumping capsule.Lithium battery casing made of the technique on rigid and corrosion-resistant cost better than all metals and The battery case that nonmetallic organic material is made, convenient processing, is more suitable for the use of battery production technology on production line for manufacturing battery, The dangerous situation of combustion explosion can be also blocked, its fire origin is blocked in battery shells, reduces loss.
Brief description of the drawings
Fig. 1 is lithium battery casing produced by the present invention（One）Front view；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 top view；
Fig. 4 is lithium battery casing produced by the present invention（Two）Front view；
Fig. 5 is Fig. 4 top view；
Fig. 6 is schematic structural view of the invention；
In figure：1- nylon layers, 2- first bonding agents layer, 3- basalt fibres layer of cloth, 4- second bonding agents layer, 5- non-stretched poly- third Alkene film layer.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of protection of the invention.
Embodiment 1
Referring to Fig. 6, in the embodiment of the present invention, a kind of lithium battery casing, it is made of Black Warrior film, Black Warrior film is included from top to bottom Each layer be respectively：Nylon layer 1, the first adhesive layer 2, basalt fibre layer of cloth 3, the second adhesive layer 4, un-stretched polypropylene Film layer 5.The preparation process of Black Warrior film is by nylon layer 1, the first adhesive layer 2, basalt fibre layer of cloth 3, the second binding agent After the material that layer 4,5 each layer of un-stretched polypropylene film layer use prepares, from top to bottom placement, which is suppressed, produces.
The thickness of wherein described nylon layer 1 is 25 μm -30 μm, and nylon layer uses nylon, and the density of nylon is 1.15 g/ cm3.The thickness of first adhesive layer 2 is 2 μm -3 μm, and the first adhesive layer 2 uses binding agent, and binding agent density is 2- 6g/m2.The thickness of the basalt fibre layer of cloth 3 is 40 μm.Basalt fibre layer of cloth 3 uses basalt fiber cloth, basalt The density of fiber cloth is 100g/m2-110g/m2.The thickness of second adhesive layer 4 is 2 μm -3 μm, and the second adhesive layer 4 is adopted With binding agent, the density of binding agent is 2-6g/m2.The thickness of the un-stretched polypropylene film layer 5 is 20 ~ 40 μm.It is non-stretched Layer of polypropylene foil 5 uses un-stretched polypropylene film, and the density of un-stretched polypropylene film is 0.92g/cm3。
A kind of preparation method of lithium battery, comprises the following steps：
1）Obtain needing the battery core of packaging lithium battery housing；
2）Black Warrior film is conveyed into punching and cheats machine, after rushing hole machine punching hole, obtains lithium battery casing semi-finished product, lithium battery casing half into Hole and battery core on product is in the same size；
3）Battery core is put into the lithium battery casing semi-finished product after the completion of punching is cheated using top side seal machine, top side seal machine is automatically lithium electricity Seal pond housing semi-finished product doubling top side；
4）The packaging to battery core is completed, produces lithium battery.
The packaging shell of existing lithium ion battery and the effect of mode：
A. battery core and air exclusion
B. the fixation of battery core
C. it is used for fixation during battery core combination
The packaging material and mode of lithium battery at present
A. shape has circular, square, Soft Roll
B. material has steel galvanization, aluminum hull, plastic casing, aluminium plastic membrane.
It is to show lithium battery made from two kinds of Different Package forms using the lithium battery casing of Black Warrior film to refer to Fig. 1-5. The Black Warrior film that the present invention uses is economical and practical, acid-fast alkali-proof, and rigid is done better than all metals and nonmetallic organic material Into battery case.The battery shells made through Black Warrior film, the dangerous situation of combustion explosion can be blocked, its fire origin is blocked in electricity In the shells of pond, loss is reduced.Convenient processing, is more suitable for the use of battery production technology on production line for manufacturing battery.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of 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, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.

Claims (10)

1. a kind of lithium battery casing, it is characterised in that be made of Black Warrior film, each layer of Black Warrior film from top to bottom is respectively：Buddhist nun Imperial layer, the first adhesive layer, basalt fibre layer of cloth, the second adhesive layer, un-stretched polypropylene film layer.
2. lithium battery casing according to claim 1, it is characterised in that the thickness of the nylon layer is 25 μm -30 μm.
3. lithium battery casing according to claim 1, it is characterised in that nylon layer uses nylon, and the density of nylon is 1.15 g/cm3。
4. lithium battery casing according to claim 1, it is characterised in that the thickness of first adhesive layer is 2 μm of -3 μ M, the first adhesive layer use binding agent, and binding agent density is 2-6g/m2。
5. lithium battery casing according to claim 1, it is characterised in that the thickness of the basalt fibre layer of cloth is 40 μ m。
6. lithium battery casing according to claim 1, it is characterised in that basalt fibre layer of cloth uses basalt fibre Cloth, the density of basalt fiber cloth is 100g/m2-110g/m2。
7. lithium battery casing according to claim 1, it is characterised in that the thickness of second adhesive layer is 2 μm of -3 μ M, the second adhesive layer use binding agent, and the density of binding agent is 2-6g/m2。
8. lithium battery casing according to claim 1, it is characterised in that the thickness of the un-stretched polypropylene film layer is 20~40μm。
9. lithium battery casing according to claim 1, it is characterised in that un-stretched polypropylene film layer is using non-stretched poly- Polypropylene film, the density of un-stretched polypropylene film is 0.92g/cm3。
10. a kind of method that lithium battery casing using as described in claim 1-9 is any prepares lithium battery, it is characterised in that Comprise the following steps：
1）Preparation needs the battery core of battery pack shell；
2）Black Warrior film is conveyed into punching and cheats machine, after rushing hole machine punching hole, obtains lithium battery casing semi-finished product, lithium battery casing half into Hole and battery core on product is in the same size；
3）Battery core is put into the lithium battery casing semi-finished product after the completion of punching is cheated using top side seal machine, top side seal machine is automatically lithium electricity Seal pond housing semi-finished product doubling top side；
4）The packaging to battery core is completed, is produced.
CN201710710177.4A 2017-08-18 2017-08-18 A kind of lithium battery casing and the method that lithium battery is made using lithium battery casing Pending CN107443841A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090011210A1 (en) * 2007-02-15 2009-01-08 Xiao Gao Lightweight glass fiber reinforced thermoplastic material
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090011210A1 (en) * 2007-02-15 2009-01-08 Xiao Gao Lightweight glass fiber reinforced thermoplastic material
CN104064811A (en) * 2014-06-13 2014-09-24 山东爱通工业机器人科技有限公司 Automatic production line for dynamic soft package lithium battery encapsulation

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Application publication date: 20171208