CN107346807A - Long-life soft-package battery heat control device - Google Patents

Long-life soft-package battery heat control device Download PDF

Info

Publication number
CN107346807A
CN107346807A CN201710314942.0A CN201710314942A CN107346807A CN 107346807 A CN107346807 A CN 107346807A CN 201710314942 A CN201710314942 A CN 201710314942A CN 107346807 A CN107346807 A CN 107346807A
Authority
CN
China
Prior art keywords
aluminium foil
soft
battery
aluminium
plastic film
Prior art date
Application number
CN201710314942.0A
Other languages
Chinese (zh)
Inventor
不公告发明人
Original Assignee
谢彦君
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN2016102964104 priority Critical
Priority to CN201610296410 priority
Priority to CN2016103165132 priority
Priority to CN201610316513 priority
Priority to CN201610427155 priority
Priority to CN2016104271552 priority
Priority to CN2016110585862 priority
Priority to CN201611058586 priority
Application filed by 谢彦君 filed Critical 谢彦君
Publication of CN107346807A publication Critical patent/CN107346807A/en

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0237Cases, jackets or wrappings for large-sized cells or batteries, e.g. starting, lighting or ignition [SLI] batteries, traction or motive power type or standby power batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0287Cases, jackets or wrappings characterised by the material comprising layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal 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
    • B32B15/088Layered products comprising a layer of metal comprising metal 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 comprising polyamides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/34Layered products comprising a layer of synthetic resin comprising polyamides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered 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
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered 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
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/10Alloys based on aluminium with zinc as the next major constituent
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627Stationary installations, e.g. power plant buffering or backup power supplies
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/64Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647Prismatic or flat cells, e.g. pouch cells
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6554Rods or plates
    • H01M10/6555Rods or plates arranged between the cells
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0262Cases, jackets or wrappings characterised by the material for large-sized cells or batteries, batteries or cells for traction or motive power or standby power
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0267Cases, jackets or wrappings characterised by the material of wrappings, outside coatings, jackets around completely closed cell elements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0277Insulating material
    • H01M2/028Insulating material being one layer
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0285Conductive material
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0287Cases, jackets or wrappings characterised by the material comprising layers
    • H01M2/0292Cases, jackets or wrappings characterised by the material comprising layers characterised by the external coating on the casing
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M2/1016Cabinets, cases, fixing devices, adapters, racks or battery packs
    • H01M2/1072Cabinets, cases, fixing devices, adapters, racks or battery packs for starting, lighting or ignition batteries; Vehicle traction batteries; Stationary or load leading batteries
    • H01M2/1077Racks, groups of several batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M2/1016Cabinets, cases, fixing devices, adapters, racks or battery packs
    • H01M2/1072Cabinets, cases, fixing devices, adapters, racks or battery packs for starting, lighting or ignition batteries; Vehicle traction batteries; Stationary or load leading batteries
    • H01M2/1083Fixing on vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/714Inert, i.e. inert to chemical degradation, corrosion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment
    • B32B2457/10Batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment
    • B32B2457/18Fuel cells
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/10Batteries in stationary systems, e.g. emergency power source in plant
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

Soft-package battery heat control device, it more particularly to can be applied to the soft-package battery heat control device being soaked in cooling water.And can be insufficient for the anti-corrosion property of battery use packing material in the prior art the defects of, there is provided corresponding package material, the packaging material are formed by the plastic layer of the rotten aluminium foil layer of resistance to cooling water and aluminium foil layer surface.

Description

Long-life soft-package battery heat control device

Technical field

The present invention relates to soft-package battery heat control device, more particularly to can be applied to the soft-package battery being soaked in cooling water Heat control device, for example can be applied to Vehicular dynamic battery field and the water-cooling system in energy-storage battery field is medium.

Background technology

Thermal management technology is one of core technology of Soft Roll electrokinetic cell, in the art existing many thermal management technology sides Case and effort, but heat management problems are still to restrict one of bottleneck problem of industry development, to the demand of High Efficiency Thermal management according to It is so very urgent.It is more air-cooled in the existing soft-package battery type of cooling, also there is oil cooling and water cooling;Such as The water-cooling project introduced in CN201210016348.0 is to use cooled plate or cooling tube and battery contact heat-exchanging, and this heat exchange Thermal contact resistance is high between cooling water and battery in mode, heat transfer link is more, heat exchange efficiency is low;As introduced in CN202550023U Although immersion type oil cooling scheme temperature uniformity has obtained a certain degree of raising, the poor fluidity of insulating oil, heat exchange efficiency It is low, and also the problems such as after-sales service are present.Make a general survey of in the prior art not by soft-package battery be immersed directly in water or Application in anti-icing fluid, more without reserve battery packaging material adaptable therewith.

The line aluminium alloy aluminium foil of aluminum plastic film generally use 8 that soft-package battery is packed in the prior art, after this aluminum foil annealing For soft aluminium foil, scouring depth good moldability.Current battery packaging material is primary concern is that electrolyte-resistant corrosivity, major technique side Case is to be modified to form anti-corrosion layer by physically or chemically mode towards the side of electrolyte in packaging material, and its effect is to prevent Electrolyte corrosion aluminium foil inner surface and cause aluminum plastic film splitting.Existing aluminum plastic film outermost layer is all used containing protections such as polyamide Plastic foil, the hydrolysis ability of these plastic protective film for plastics is poor, if with being easy to hydrolysis failure if moisture.

In order to improve the hydrolysis ability of aluminum plastic film, the common means of prior art are to improve the hydrolysis of outer protective film Ability, for example, using than nylon membrane more resistant to water PET film as outermost diaphragm.Using after PET film to the water in resistance to air Vapour or water droplet corrosive nature increase, but are not suitable for contacting with water for a long time.

The content of the invention

It is still to restrict the bottleneck problem of industry development based on current power battery thermal management problem, the present invention is electric from Soft Roll The demand of pond cooling is set out, and in order to obtain higher battery cooling performance, the present invention, which courageously uses, directly soaks soft-package battery Cooling scheme in cooling water.However, by furtheing investigate and just being found after test for a long time, existing battery packaging material can not This immersion water-cooled requirement is adapted to, it is antifreeze that existing soft-package battery is packed for the anti-ethylene glycol of outermost nylon protective layer in aluminum plastic film Corrosion poor performance, the aluminium foil as water blocking layer are alfer, its mechanical strength and anti-ethylene glycol antifreeze corrosive nature(It is special It is not corrosion resistance)Also it is poor, even if it uses traditional technological means(As aluminium foil surface does corrosion-inhibiting coating processing)Also hold Easily there is spot corrosion, therefore existing aluminum plastic film can not meet long-term immersion water-cooled system requirements.In order to overcome drawbacks described above, this Following new battery cooling system scheme and battery packaging material scheme are provided to innovation and creation, to solve above-mentioned series technique Problem and the thermal management requirements for meeting the high capacity cell system such as used in new energy vehicles or energy storage use.

Under the premise of aluminum plastic film foil moulding ability is taken into account, while for being used for battery pack in the prior art (battery)The resistance to automotive antifreezing coolant of aluminum plastic film(Abbreviation anti-icing fluid, its main component are ethylene glycol and water)Or resistance to cooling The defects of corrosion resistance deficiency of water, i.e., be easily corroded the defects of perforating, and the special one kind that provides of the present invention can be used for lithium ion Secondary cell is packed for aluminum-plastic composite membrane(Hereinafter referred to as aluminum plastic film), it has the higher corrosion of resistance to cooling ability.

One side of the invention is to provide a kind of battery formed by metallo-plastic laminated film, is preferably soft-package battery Use packaging material(Preferably aluminum plastic film), including metal foil layer(Preferably aluminium foil layer)Be compound in metal foil layer(Preferably aluminium Layers of foil)The plastic layer of inner surface.

Second aspect of the present invention is to provide a kind of soft-package battery, includes electrode material and electrolyte and outer wrap Above-mentioned metallo-plastic laminated film(Preferably aluminum plastic film), the metal foil layer(Preferably aluminium foil layer)The modeling of inner surface The bed of material is by electrolyte and metal foil layer(Preferably aluminum plastic film)Isolation.Preferably, the electrolyte include lithium hexafluoro phosphate and/ Or LiBF4(LiBF4).

Third aspect of the present invention is to provide a kind of battery heat control device, preferably soft-package battery heat control device, bag Contain above-mentioned soft-package battery., can after the soft-package battery can use the above-mentioned laminated aluminum film for the immersion corrosion of resistance to coolant So that the soft-package battery is immersed in into coolant(Such as anti-freeze cooling liquid)In, it is preferable that it is described to be formed by metallo-plastic laminated film Battery use packing material be immersed in the coolant, it is highly preferred that the metal foil layer(Preferably aluminium foil layer)It is immersed in In the coolant, so as to which metal foil layer directly can carry out heat exchange with coolant.The heat transfer effect of so battery is more preferable, and The more uniform temperature of battery up and down everywhere.

The 4th aspect of the present invention is to provide a kind of method that battery unit is cooled down using heat control device.

The 5th aspect of the present invention is to provide the battery package formed described in a kind of manufacture by metallo-plastic laminated film The method of material, preferably aluminum plastic film.

In a kind of preferred embodiment of the present invention, aluminium foil layer is formed by corrosion resistant aluminum alloy.Wherein, it is so-called corrosion-resistant to be Refer to resistance to cooling water or antifreeze corrosion.It is so-called in the present invention corrosion-resistant to each mean resistance to cooling water or anti-icing fluid if not specified Corrosion, without referring to that electrolyte resistance corrodes.The technological means for the resistance to cooling water corrosion that the present invention uses is resistance to also different from traditional The technological means of electrolytic corrosion.

In a kind of preferred embodiment of the present invention, aluminium foil layer is composite bed, and aluminium foil layer includes core and outside core The skin material of side, the corrosion potential of the skin material of aluminium foil layer are less than the corrosion potential of core.It is highly preferred that the core is located at aluminium foil layer Between the plastic layer and skin material of inner side.It is furthermore preferred that in the battery heat control device, the aluminum plastic film aluminium foil of soft-package battery is packed Skin material be immersed directly in the coolant.

The aluminum plastic film of the present invention is the film composite material that a kind of plastic foil and aluminium foil film is formed, and is as polymer lithium electricity Pond packaging material.

Wherein it is preferred to which the only one side of aluminium foil layer is compounded with plastic layer, also, plastic layer is only compound in the interior of aluminium foil layer Side.Wherein, such scheme includes following situation:The plastic layer of a certain side surface of aluminium foil layer is compound in, both can be individual layer modeling Material or laminated plastics.

Further, the inner side plastic layer is preferably thermoplastic resin membrane.Such as polypropylene(PP)Film or poly- second Alkene(PE)Film.Wherein, the thickness of inner side plastic layer is chosen as 50-300 microns, and preferably greater than 60 are less than 100 microns, more Preferably 70-90 microns.The inner side plastic layer is alternatively referred to as hot sealing layer or sealant.Preferably, the inner side plastic layer is poly- Olefin resin or acid-modified polyolefin resin.Various additives can also be coordinated in the inner side plastic layer, such as fire retardant, lubrication One or more in agent, anti-blocking agent, antioxidant, light stabilizer, adhesion imparting agent.

Preferably inner side plastic layer has more preferable electrical insulation characteristics, and so as to which withstand voltage value is higher, for example proof voltage is preferred More than 1000V, it is more highly preferred to be more than 2000V.

In addition, above-mentioned composite bed aluminium alloy, preferably at least including core and the skin material being compound on the outside of core.Composite bed Aluminium alloy can be the different aluminium alloy of two layer components, can also be the different aluminium alloy of more layer components.

The above-mentioned aluminum plastic film of the present invention, can be following structure:The aluminum plastic film has by inner side heat sealing layer, outside aluminium The laminated body that layers of foil is formed, formed wherein outside aluminium foil layer is the composite bed aluminium foil with galvanic anode protection protective function.The plastic-aluminum Film does not contain outside plastic protective layer.

Wherein, the heat sealing layer of inner side can also claim thermoplastic resin film layer.

The corrosion potential of skin material is lower 5mV-500mV than the corrosion potential of core in composite bed aluminium foil.Further, skin material Corrosion potential is lower 50mV-500mV than the corrosion potential of core.Preferably, the corrosion potential of skin material is lower than the corrosion potential of core 70mV-200mV.It is further preferable that the corrosion potential of skin material is lower 100mV-170mV than the corrosion potential of core.Above-mentioned potential difference Refer to the potential difference before compound or before heat treatment.

In the present invention, if not specified, corrosion potential is referred both to as the corrosion potential under water base cooling pendular ring border.It is logical Cross skin material in this clad aluminum foil to match with the reasonable current potential of core, be advantageous to avoid aluminium foil(Particularly core)Spot corrosion.

If not specified in the present invention, the cooling water and the coolant refer both to water base coolant.So-called water base cold But liquid, the coolant using water as basis is referred to.Water base coolant, which can also be, includes various antifreezing agents(Such as second Alcohol, ethylene glycol, propane diols etc.)To form the anti-icing fluid with antifreeze function.So coolant of the invention includes as sowed Class:Mixed liquor of pure water, ethylene glycol and water etc..

Further, the core of above-mentioned clad aluminum layers of foil is formed by corrosion resistant aluminum alloy or fine aluminium.The fine aluminium includes Commercial-purity aluminium and rafifinal.In the fine aluminium aluminium purity preferably >=99.0%, more preferably 99.0%-99.99%.

Corrosion resistant aluminum alloy of the present invention, refers in the environment of directly being contacted with coolant, aluminium alloy and aluminium Plastic film can keep normal function for a long time without failing, such as the not cooled corrosion perforation of aluminium alloy.It is wherein described " not lose The electric insulation functions that effect " includes aluminum plastic film do not fail and water vapor rejection function does not also fail.The although decay in the amount of having of its performance, But remain to meet basic demand.Wherein so-called " long-term ", refers to product(Such as automobile or automobile power battery)The normal longevity Cycle duration is ordered, for example the life-span is more than 5 years, preferably greater than 10 years, is more highly preferred to be more than 15 years.

If aluminium foil layer is composite bed, it is compounded to form by core and skin material, core is located at inner side, and skin material is located at outside, and skin The corrosion potential of material is less than(Or it is defeated by)The corrosion potential of core.When being contacted with the medium that is corrosive, it is rotten to form electrochemistry Erosion, skin material protect the core as negative electrode, so that it is guaranteed that the aluminium foil layer in aluminum plastic film can be resistance to for a long time as the anode being sacrificed Water base cooling corrosion, and then ensure the service life of battery.Wherein, skin material can be monolayer material or multilayer material Material.If skin material is multilayer, preferably corrosion potential reduces multilayer skin material successively from inside to outside.Skin material thickness preferably accounts for whole aluminium The 8 ~ 20% of layers of foil, more preferably 10 ± 2%.When the so-called inner side of the present invention refers to be applied to soft-package battery, inside battery core That side of electrolyte;When so-called outside refers to be applied to soft-package battery, that side away from electrolyte inside battery core.

Wherein, core is alternatively referred to as aluminium base.Plastic layer can be the plastic layer of various ripe applications in the prior art, such as Internal layer uses cast polypropylene film(CPP), and adhesive dry method in existing process can be used between plastic layer and aluminium foil layer Compound or hot method is compound.

Aluminium alloy designations of the present invention use association of Alcoa respective standard.

Further, if aluminium foil layer is composite bed, the skin material of aluminium foil layer is selected from aluminium allumen.Zn-ef ficiency in alumin(i)um zinc alloy Content is preferably 1%-10%, more preferably 4%-7%.

Preferably, the composite bed aluminium foil is compounded to form by following core and skin material, and the core is to contain following component (Mass percent)Aluminium alloy:Si≤0.25wt%;Cu≤0.05wt%;Mg≤0.05wt%;Zn≤0.05wt%;Mn≤ 0.05wt%;Ti≤0.03wt%;V≤0.05wt%;Fe≤0.4wt%;Remaining is aluminium;

Or;The core is to contain following component(Mass percent)Aluminium alloy:Si≤0.25wt%;Cu≤0.05wt%; Mg≤0.05wt%;Zn≤0.05wt%;Mn≤0.05wt%;Ti≤0.03wt%;V≤0.05wt%;Fe≤0.4wt%;Sm 0.1- 0.3wt%;Remaining is aluminium;

The skin material is to contain following component(Mass percent)Aluminium allumen:Zn 4-7wt%;Si 0.5-1.0wt%;Ti 0.1-0.2wt%;Fe 0.5-1.5wt%;

Or the skin material is to contain following component(Mass percent)Aluminium allumen:Zn 4-7wt%;Si 0.5- 1.0wt%;Ti 0.1-0.2wt%;Fe 0.5-1.5wt%;Sm 0.1-0.3wt%.

Another preferred scheme is:The composite bed aluminium foil is compounded to form by following core and skin material, the core be containing Following component(Mass percent)Aluminium alloy:

Si≤0.9wt%;Fe≤1.7wt%;Cu≤0.1wt%;Mn≤0.2wt%;Mg≤0.05wt%;Zn≤0.1wt%; Ti≤ 0.08wt%;Cr≤0.05wt%;Other impurity elements are single≤and 0.05%;Other impurity elements amount to≤0.15%;Remaining is aluminium;

The skin material is to contain following component(Mass percent)Aluminium allumen:

Zn 4-7wt%;Fe 0.5-1.5wt%.

Further, if aluminium foil layer is composite bed, the skin material of aluminium foil layer is selected from the modified aluminium alloy of addition zinc.Wherein, Skin material is preferably 1 line aluminium alloy for adding zinc or 3 line aluminium alloys for adding zinc, for example addition mass percent is 1.0%-2.5% 3003 aluminium alloy modifieds of zinc.With the addition of 3003 current potentials of zinc reduces, and is about -0.82 to -0.88V, therefore be less than 3003 cores The current potential of material.Or skin material is preferably in 1 line aluminium alloy(Fine aluminium)On the basis of add the aluminium alloy that zinc is formed, for example add matter Measure the 1050 aluminium alloy modifieds that percentage is 4%-7% zinc.

Further, fine aluminium is 1050 aluminium alloys, either 1060 aluminium alloys or 1070 aluminium alloys, or 1100 aluminium close Gold.

Aluminium foil of the present invention refers to for film-form(Or flake)Pure aluminum or aluminum alloy, therefore aluminium foil of the present invention also may be used To say being aluminium film, thickness is chosen as the aluminium film within 200 microns, is also chosen as 200-300 microns or the aluminium of 300-500 microns thickness Film.Or further, the thickness of aluminium foil layer is preferably 80-500 microns in aluminum plastic film.The thickness is more preferably 100-300 Micron.The thickness is more preferably 100-200 microns again.

Further, the condition of heat treatment of aluminium foil layer is annealed condition(O states).

One of optionally, the outside of aluminium foil layer passes through mould release bond plastic protective layer.So outside aluminium foil layer Plastic protective layer be easy to be separated.

Further, the heat-sealing layer material can be polypropylene(PP)Film, can also be polyethylene(PE)Film.

The aluminium foil layer of aluminum plastic film is composite bed, then the core of the aluminium foil layer can be 3 line aluminium alloys or 1 line aluminium alloy, Or 5 line aluminium alloy or 6 line aluminium alloys or 8 line aluminium alloys;The skin material of its aluminium foil layer can be 7 line aluminium alloys.Wherein, Core is more preferably 1 line aluminium alloy or 8 line aluminium alloys, and the composite bed aluminium foil with such core is with more preferable corrosion resistance and change Shape ability.

The aluminium foil layer corrosion stability of present invention aluminum plastic film provided above is good, aluminium foil layer and the aluminum plastic film containing the aluminium foil layer With long-term resistance to cooling corrosion performance.

Present invention aluminum plastic film provided above, such as aluminium foil layer employ 3 line aluminium alloys(Such as 3003), more preferably adopt With the compound aluminium alloy compound layer of 3 line aluminium alloys and 7 line aluminium alloys(Such as 3003/7072), therefore it has excellent resistance to cooling It corrosion performance, can be applied in automobile-used Soft Roll electrokinetic cell system, and the aluminum plastic film of soft-package battery and coolant can be allowed direct Contact heat-exchanging.

The above-mentioned aluminum plastic film of the present invention, is battery packages aluminum plastic film, the aluminium foil layer has the function that water blocking layer.

Optionally, there can also be corrosion-proof layer on the inside of above-mentioned aluminium foil layer, the corrosion-proof layer is chromium Hydrochlorate processing is formed or formed by rare earth oxide processing, but is not required in that.Inner side plastic layer is only included in the present invention Aluminum plastic film be immersed in conductive coolant, aluminium foil layer is electrically connected with conductive coolant.In rare cases, when battery is electrolysed Matter through inner side plastic layer reach aluminium foil layer when, electrolyte and aluminium foil layer, conductive coolant and external ground line are formed and are electrically connected It is logical, and then insulaion resistance alarm is can trigger, corrosion of the hydrofluoric acid to aluminium foil is detected in time, and prevents the danger such as electrolyte leakage Occur.So aluminum plastic film aluminium foil inside does not do traditional erosion shield processing in heat management system of the present invention, battery and whole The security performance of system remains to be protected.

Thickness is 40 microns of 8 systems in the prior art(Such as 8021 or 8079)Longevity of the aluminium foil in the experiment of OY aqueous corrosions Life about 98 hours, can not meet Car design life requirements at all, therefore can not meet wanting for the anti-icing fluid immersion type type of cooling Ask.Therefore, if need to have above-mentioned decay resistance, in aluminum plastic film aluminium foil need to have suitable aluminum alloy materials form and/or Suitable thickness.

Meet that the aluminum foil material of above-mentioned resistance to cooling corrosion performance requirement can be from the compound of galvanic anode protection protective function Chosen in layer aluminium alloy.

Meeting the aluminum foil thickness of above-mentioned resistance to cooling corrosion performance requirement can choose from following thickness:80-120 microns, Or 120-150 microns or 150-200 microns or 200-300 microns.

For example thickness is more than 150 microns of fine aluminium AA1050, or AA1050 and 20 micron that thickness is 100 microns The composite bed aluminium alloy that AA7072 is compounded to form(That is 120 microns of composite bed aluminium alloy gross thickness), used from both the above aluminium foil Above-mentioned resistance to anti-icing fluid corrosion life requirement can be met in manufacture aluminum plastic film, so as to meet motor live time requirement.

In addition to solving the problems, such as above-mentioned corrosion fatigue life from aluminium foil angle, aluminum plastic film can also be improved from outside plastic layer Water-fast corrosion life problem.Such as the plastic layer that the outside plastic layer is hydrolysis.The outside plastic layer be Teflon layer, Or PE layers or PE layers and the composite of PA layers or PA water-fast improvement layer.Or if outside without plastic layer, i.e. aluminium Paper tinsel is cladding material, then can make corrosion-inhibiting coating in aluminium foil layer outer surface, such as chromaking processing or rare earth oxide processing.Above-mentioned side It is not preferred scheme of the present invention though case has certain effect.

If in not specified, the so-called life-span of the invention, refer to that corruption can not occur in life span in aluminum plastic film and its aluminium foil The defects of eating thrown hole.The present invention is in order to obtain above-mentioned resistance to cooling corrosion performance, and aluminium foil is needed from above-mentioned suitable in aluminum plastic film Aluminum alloy materials and enough thickness.For example preferably, the aluminum plastic film is by aluminium foil layer and the thermoplastic resin being compound on aluminium foil Membrane of lipoprotein is formed, and wherein aluminium foil is that thickness is preferably 100 to 300 microns with sacrificial anode function and service layer aluminium foil.It is existing Aluminum plastic film product does not account for the application being soaked in anti-icing fluid, does not possess long period of soaking in anti-icing fluid without failure yet Function;And the aluminum plastic film product of the present invention possesses above-mentioned specific characteristic.

Further, the present invention also provides a kind of aluminum plastic film, and the aluminum plastic film includes aluminium foil layer and is compound in aluminium foil layer table The plastic layer in face;Aluminium foil layer is composite bed aluminium foil, and aluminium foil layer includes core and the skin material on the outside of core, the skin of aluminium foil layer The corrosion potential of material is less than the corrosion potential of core;Wherein, the skin material on the outside of core is by two layers of skin material or more than two layers Multilayer skin material is compounded to form, and corrosion potential reduces successively from inside to outside.Face corrosion gradient is consequently formed, is more beneficial for preventing point-like Corrosion.In other words preferably, on the cross section of the aluminium foil layer, the current potential in outside is progressively less than or equal to the current potential of inner side(Or Zn contents are stepped up from inside to outside).

In order to form electric potential gradient, composite bed aluminium foil can also be allowed to be heated at high temperature, allow in skin material Zn-ef ficiency to core Progressively spread, so as to aluminium foil layer from outside to inside during, the continuous change progressively of the content of Zn-ef ficiency, corrosion potential is also continuous It is changed stepwise, avoids Zn-ef ficiency content and the change of corrosion potential cliff of displacement formula or mutation, so as to is more beneficial for etch state conversion For uniform banded corrosion.The anticorrosion mechanism of composite bed aluminium foil is different from traditional corrosion-inhibiting coating processing sides such as aluminium foil surface chromaking Formula, composite bed aluminium foil are all aluminium in itself, and it improves etch state by adjusting the corrosion potential of different layers inside aluminium foil, i.e., by Spot corrosion guiding is banded corrosion, prevents aluminium foil perforation and battery failure.It is immersed in after being handled according to aluminium foil outer surface chromaking In cooling water, although the corrosion rate of aluminium foil can be reduced, the etch state of aluminium foil can not be improved, the suppression to spot corrosion is made With little.

What deserves to be explained is after by high-temperature diffusion process, the boundary between above-mentioned each layer of composite bed has not been ten clearly demarcated Really, composition and current potential are not stepped mutation between each layer, but the process of a gradual change.It is so of the present invention compound Layer aluminium foil, both including compound between the multilayer different aluminum alloys before non-high-temperature process;Also include high-temperature process after, perpendicular to On the direction of aluminium foil surface, the composite bed of constituent content gradual change or corrosion potential gradual change in aluminium foil.Such as high-temperature annealing process bar Part can select:200 ~ 400 degrees Celsius of annealing temperature, annealing time 1.5 ~ 3.5 hours;Repeatedly annealing be may also pass through to reach Perfect condition.

Soft-package battery heat control device as described above, include by the Soft Roll of any of the above-described kind of battery packaging material packaging Battery, can also further comprise coolant, and the outer packing of the soft-package battery directly contacts with coolant.Further, it is described Battery heat control device included by coolant for water or mixed liquor comprising ethanol and water or comprising ethylene glycol with The mixed liquor of water or include propane diols and the mixed liquor of water or other anti-freeze cooling liquids.These coolants are current automobile Upper and industrially conventional coolant, they are not insulated type cooling mediums, but conductive energy(Including faint conduction Performance)Conductive coolant;But compared to the insulated type cooling medium of silicone oil or transformer oil etc, above-mentioned conductive cooling Liquid has the advantages that thermal conductivity factor height, good fluidity, heat transfer efficiency are high and cost is relatively inexpensive.

On the basis of more than, the present invention provides following soft-package battery heat control device, the soft-package battery heat control device bag Containing soft-package battery and coolant, the outer packing of the soft-package battery directly contacts with coolant, and soft-package battery uses above institute One or more in the soft-package battery for the packaging material packaging stated.Wherein, coolant is conductive coolant.Soft Roll electricity of the present invention Pond preferably uses the soft-package battery using lithium hexafluoro phosphate as electrolyte.

Further, the heat control device also includes dividing plate;At least part surface of the dividing plate and the soft-package battery At least part outer surface directly contacts, and is provided with fluid passage in dividing plate;Several soft-package batteries form a battery unit, Battery unit is set with baffle interval.Several described soft-package batteries can be 1 or 2 or one battery list of multiple compositions Member.When the soft-package battery heat control device has water base coolant, water base coolant flows in the fluid passage, water base coolant With soft-package battery direct contact heat transfer.

In a kind of more preferred embodiment, the dividing plate includes two flat boards, two flat boards respectively with a battery unit Contact, the connecting plate being connected at least one flat board is provided between two flat boards, so as to form fluid between two flat boards Passage.

In another more preferred embodiment, the dividing plate is fin structure, it is preferable that is sequentially connected between fin, institute It can be the connection such as " V " shape, " u "-shaped, trapezoidal, arc, zigzag to state connected mode, and can be parallel between adjacent fins Or shape is at an angle, so as to form the fluid passage between adjacent fins.

Wherein, it is highly preferred that the fin structure includes riser and the flat board at riser both ends, the flat board and battery are straight Contact.

It is highly preferred that the fin structure include two groups described in flat board, described two groups respectively with two adjacent batteries Battery unit contact in unit, each group include multiple flat boards.It is highly preferred that each flat board only connects two risers.

The riser is not necessarily vertical with the flat board or inclination is connected on flat board.

In a kind of more preferred embodiment, hole is also provided with the fin.

In another more preferred embodiment, the fin can be straight panel fin, it is Wavelike finned in any one Or it is several, wherein, it is described it is Wavelike finned in knee can be arc, can also form wedge angle(Such as acute angle, right angle or blunt Angle), more preferably arc.

Wherein, the dividing plate between two neighboring battery unit can be the son of the either multiple sub-dividing plate compositions of a dividing plate Dividing plate group, for example, multiple sub-dividing plates are intervally arranged between two battery units;The sub-dividing plate structure is selected from aforementioned barriers knot Any one or a few in structure.

The dividing plate preferably uses metal material(Such as aluminium alloy, stainless steel);The corrosion potential of dividing plate is equal to or is defeated by Aluminium foil corrosion current potential in aluminum plastic film.Further, the dividing plate uses metal material;The corrosion potential of dividing plate is defeated by aluminum plastic film Aluminium foil corrosion current potential, or dividing plate corrosion potential be equal to or be defeated by aluminium foil in aluminum plastic film skin material corrosion potential.It is described every Plate plays support soft-package battery and flow of tissue field action, and dividing plate can be extruding flat tube or plain fin, stagger arrangement saw The various forms of fins such as tooth fin.Above-mentioned fin is one kind of dividing plate in the present invention, or perhaps the wing with fluid passage Chip dividing plate.These fin dividing plates, which play, to be separated adjacent battery unit and forms the effect of runner, and battery unit is carried out Support and fixed, so, the soft-package battery thermal control system just has reliable antivibration fatigue resistance, so as to for automobile etc. In vibration environment.Fin dividing plate of the present invention does not include the fin that can not support the aciculiform fin of battery unit etc.In addition Fin diaphragm internal of the present invention has fluid passage(Or runner), and fluid passage directly contacts with soft-package battery.Battery unit Closely it is arranged at intervals and forms a whole with fin dividing plate, and can uses bandage or run through bolt that the entirety is fastened on into one Rise.Compared to the flat tube or in the prior art dividing plate of other forms, not only structure is simpler for fin dividing plate of the present invention, and due to There is no dividing plate wall so heat transfer efficiency is higher.Above-mentioned fin does not have high temperature resistant to act on or require, so fin dividing plate Without wishing In using metal material, the plastic materials such as ABS, PP can be also used.

Further, the aluminum plastic film is sealed around by the battery core body, only battery electrode or electrode connecting end mouth from Stretched out in the aluminum plastic film;Battery heat control device also includes mainboard, and the mainboard is provided with socket, and the battery is from aluminum plastic film The part of interior stretching is inserted on mainboard by the socket.

Further, the battery heat control device also includes shell body, and accommodating chamber, institute are provided with inside the shell body State battery unit to be placed in the accommodating chamber of the shell body with dividing plate, the shell body also includes fluid intake and fluid goes out Mouthful.

Or further, the heat control device also includes mainboard and shell body, mainboard and shell body form annular seal space, The electrode of soft-package battery is stretched out on mainboard, and the body of soft-package battery is placed in annular seal space.In addition to the device of above-mentioned form, heat Control device can also have multiple mainboards to form multiple annular seal spaces.

Further, the mainboard is located in the accommodating chamber of the shell body, and the accommodating chamber is separated turned into Two parts, Part I accommodate cell body and dividing plate, and Part II accommodates the electrode stretched out from the aluminum plastic film And/or electrode connecting end oral area point, physical isolation between the Part I and Part II.

Battery heat control device of the present invention, cooling pump, coolant heat exchanger and corresponding water pipe can also be included;Or Person is the present invention provide a kind of battery cooling system, and it uses above-mentioned battery heat control device, in addition to cooling pump(Preferably less than 24 volts of low-voltage water pump), coolant heat exchanger and corresponding water pipe.Wherein, coolant heat exchanger is coolant and environment Air carries out the gas-liquid heat exchanger of direct heat exchange.

The present invention also provides the method that battery unit is cooled down using any of the above-described kind of soft-package battery heat control device, the thermal control The water base coolant using ethylene glycol and water as main component is accommodated in the fluid passage of device processed.This method include by heat energy from The battery unit is conducted into the aluminum plastic film.This method also includes heat energy being directly conducted to water base cold from the aluminum plastic film But liquid(And/or the fin)In to cool down the battery unit.It can be found that compared to battery water cooling side of the prior art Formula, it is considerably less from battery unit to conduct intermediate link to cooling water for heat energy caused by battery in the present invention, and does not have solid Between thermal contact resistance, so heat transfer efficiency is very high.

Due to using above-mentioned battery heat control device, the heat exchange efficiency of battery is very high, between battery body and coolant Heat transfer resistance is very low, heat transfer temperature difference is very small;So ensureing material in battery body(Such as electrolyte, barrier film and solid Electrolyte interface film SEI)Not on the premise of overtemperature, coolant can be allowed to have higher temperature, that is, reduce battery cooling pair Extraneous requirement, reduces cooling cost, so as to use above-mentioned gas-liquid heat exchanger.Further, above-mentioned cooling system Electric heater can also be included, for being heated to battery.

More than of the invention in the aluminum plastic film of resistance to cooling corrosion and the soft-package battery that thus aluminum plastic film wraps up, aluminium foil layer or Initially contacted as water-touching layer with coolant, or treat outside protective layer(Such as nylon membrane)After stripping as water-touching layer with it is cold But liquid contacts.

Traditional aluminum plastic film there is no the demand and characteristic of long-term hydrolysis, or, it is resistance in order to improve aluminum plastic film outer layer Air reclaimed water vapour hydrolysis ability, typically improve the hydrolysis ability of outer layer plastic film, for example protected using fluorine-containing outer layer plastic Cuticula, but its cost, technique and thermal efficiency are poor.In multiple technical schemes provided by the invention preferred scheme it First, the aluminium foil of aluminum plastic film only inner side is compounded with thermoplastic film, i.e., heat-resistant plastic film or guarantor are not contained on the outside of aluminium foil Cuticula, aluminium foil directly with cooling water contact heat-exchanging.Aluminium foil in aluminum plastic film of the present invention not only has the effects such as barrier steam, and has There is the corrosion resistant effect of long-term hydrolysis, also there is shaping and packaging effect.Compared to existing aluminum plastic film, main hair of the invention One of bright point the improvement of aluminium foil in aluminum plastic film and omit outside plastic layer, the aluminium foil by using different structures and/ Or component, its corrosion resistance and mechanical strength are improved, therefore still have on the outside of the aluminum plastic film after eliminating outside plastic foil Preferable resistant to chemical media corrosive power, anti-pin hole ability and scratch resistance ability, and technique is easier and cost is lower, when this When aluminum plastic film is with cooling water contact heat-exchanging, its heat exchange efficiency is higher;Importantly, the above-mentioned aluminum plastic film of the present invention also has newly Function, that is, have can resistance to cooling water corrosion function for a long time, therefore can with long period of soaking in cooling water without failing, so as to more preferably Ground meets the thermal management requirements of immersion water-cooled soft-package battery cooling system, is provided reliably for the performance boost of battery system Guarantee.

Another preferred scheme is that aluminium foil is by using inside in aluminum plastic film in multiple technical schemes provided by the invention The composite bed aluminium foil of interlayer difference corrosion potential matching so that aluminium foil corrosion form more they tends to banded corrosion.Compared to individual layer aluminium Paper tinsel, above-mentioned composite bed aluminium foil preferably avoid aluminium foil spot corrosion perforation failure in aluminum plastic film.

Different from other composite bed aluminium foils, aluminium foil is used for the outer packing of soft-package battery, it is necessary to take into account change simultaneously in the present invention Shape performance and resistance to cooling water corrosion performance, wherein more preferably one of scheme is the skin using zincification on the basis of fine aluminium core and fine aluminium Material is compound, and it not only has excellent anti-cooling water pitting corrosion, while also has preferable mouldability and packability.

Aluminum plastic film provided by the invention can also be the technical scheme that the combination of above-mentioned technical characteristic is formed, compared to tradition Aluminum plastic film, it has new function, you can for the packaging of the soft-package battery with cooling water direct long term contact, has cold-resistant But aqueous corrosion, the advantages of service life is long.

In addition, being cooled down compared to immersion type insulating oil of the prior art, the present invention is immersion water-cooled with very prominent Technique effect.

It is as shown in the table, on the comparative analysis between several coolants, either thermal conductivity or mobility, transformer The performance of the insulating and cooling liquid such as oil or silicone oil is far short of what is expected compared with anti-icing fluid or water.

  Anti-icing fluid Water Transformer oil Remarks Thermal conductivity factor (W/m.K) 0.4054 0.6526 0.128 Thermal conductivity factor is more big more is advantageous to exchange heat Volume specific heat (kJ/m3.C) 3668 4112 448 Volume specific heat is more big more is advantageous to exchange heat Dynamic viscosity (mPa.s) 1.4 0.5 8.592 Kinematic viscosity is more low to be more more advantageous to flow, so as to more be advantageous to exchange heat Anti-flammability It is non-combustible It is non-combustible Incendivity  

Compared to insulating oil, can show as immersion type cooling medium, the heat-sinking capability of battery by using anti-icing fluid or water Write lifting.Its heat-sinking capability can improve 15 ~ 20 times in the case of same cooling system, be embodied in battery tolerance cooling and be situated between Further 5 ~ 10 degrees Celsius of the lifting of the ability of matter temperature, the temperature difference is further contracted to 1.0 ~ 2.0 degrees Celsius between battery cell. In the case that current battery heat management bottleneck problem still protrudes very much, this technique effect is exactly that this area is expected very much , above-mentioned radiating effect is that indirect type water cooling or immersion type oil cooling are not reached.

Although the invention is from obtaining the motivation of more efficient soft-package battery cooling performance, but carried in the present invention The technical scheme of confession not only obtains splendid cooling performance, but also further deeply solves the machinery of battery cooling system Many technical problems such as intensity, anticorrosive durability, manufacturing process and cost simultaneously obtain good technique effect.

Brief description of the drawings

Fig. 1 is the first aluminum plastic film structural representation;

Fig. 2 is second of aluminum plastic film structural representation;

Fig. 3 is the application schematic diagram using the battery of aluminum plastic film of the present invention;

Fig. 4 is soft-package battery schematic diagram;

Fig. 5 is soft-package battery heat control device schematic diagram;

Fig. 6 is the third aluminum plastic film structural representation, and wherein aluminium foil layer is individual layer;

Fig. 7 is individual layer aluminium alloy(Left figure)With composite bed aluminium alloy(Right figure)Corrosion resistance contrast test design sketch;

Fin dividing plate shown in Fig. 8 is stagger arrangement saw tooth fin, including multiple tooth form units, connection shape inside same row tooth form unit Into fluid passage, arrangement is staggered front to back between adjacent tooth form unit, the top and bottom plane of tooth form unit directly connects with battery Touch.

Fin dividing plate shown in Fig. 9 is plain fin, including the flat board up and down that parallel riser connects with riser both ends, is put down Directly contacted between plate and battery, fluid passage is formed between riser.

Embodiment

With reference to instantiation, the present invention is described further, and protection scope of the present invention includes but is not limited to This.

Embodiment 1

As accompanying drawing 1 provides a kind of aluminum plastic film, the aluminum plastic film includes aluminium foil layer 1 and is compound in the plastic layer of aluminium foil layer both side surface 2nd, 3, wherein, aluminium foil layer 1 is by 3 line aluminium alloy aluminium foil layers 7(Core)With 7 line aluminium alloy aluminium foil layers 6(Pi Cai)It is compounded to form.Such as adopt With 3003 aluminium alloys and 7072 aluminium alloy compounds, 7072 aluminium alloy layers 6 are compound in the outside of 3003 aluminium alloy layers 7.In other words, should By hot sealing layer, 3003 aluminium foil layers, 7072 aluminium foil layers and nylon layer, lamination is formed aluminum plastic film successively, wherein aluminium foil layer and plastic layer with Traditional adhesive bonding.In other words, each layer is the aluminum plastic film from inside to outside:Hot sealing layer, adhesive layer, 3003 aluminium foil sandwich layers, 7072 aluminium foil cortexes, adhesive layer, nylon protective layer.

The adhesive of above-mentioned bonding nylon protective layer is using the mould release for being easy to separation.I.e. nylon protective layer is similar to release Film.So, in aluminum plastic film deep-draw forming process, nylon layer can protect aluminium foil layer;After the completion of deep-draw shaping, nylon layer energy It is enough easily to be separated with aluminium foil layer.

The corrosion potential of 3003 aluminium alloys is about -0.72V, and the corrosion potential of 7072 aluminium alloys is about -0.88V.Due to The corrosion potential of 7072 aluminium alloys is less than the corrosion potential of 3003 aluminium alloys, when being contacted with coolant, 7072 aluminium alloy conducts The anode being sacrificed, protects core not to be corroded.Hot sealing layer thickness is preferably 80-100 microns, and nylon protective layer thickness is preferably 20-30 microns, the thickness of the clad aluminum layers of foil is preferably 200-300 microns;Wherein, the thickness of 7 line aluminium alloy layers 6 preferably accounts for whole The 10% of individual aluminium foil layer 1.It is Nian Jie compound by adhesive 4,5 respectively between outer plastic layer 2,3 and aluminium foil layer 1 in same.

In addition, the condition of heat treatment of aluminium foil layer is preferably O state.

The aluminium foil layer of the present embodiment is thicker than the aluminium foil layer in traditional aluminum plastic film, and it is rotten so to not only improve long-term resistance to anti-icing fluid Corrosion energy, be advantageous to the water vapor barrier property of aluminum plastic film again, so as to ensure the long-term reliability of soft-package battery packaging.

Embodiment 2

Such as second of the aluminum plastic film of offer of accompanying drawing 2, the aluminum plastic film includes aluminium foil layer 1 and the thermoplastic resin being compound on the inside of aluminium foil layer Mylar layer 3, wherein, aluminium foil layer is composite bed aluminium foil, and aluminium foil layer includes core and the skin material on the outside of core, aluminium foil layer Skin material corrosion potential be less than core corrosion potential.Further, the core of aluminium foil layer is by corrosion resistant aluminum alloy or pure Aluminium is formed.For example clad aluminum layers of foil 1 is by 3 serial aluminium foil layers 7(Such as 3003)With 7 serial aluminium foil layers 6(Such as 7072)It is compounded to form. Only inner side is compounded with thermoplastic resin film layer 3 on aluminium foil layer 1(Also hot sealing layer 3 can be claimed, such as using CPP), without outside Nylon overcoat.Compared to the aluminum plastic film in the prior art with outer layer plastic diaphragm, aluminum plastic film of the present invention courageously eliminates After the plastic protective film for plastics of outside, equally with characteristics such as preferable mechanical strength, water vapor barrier property and electrolyte resistances, but also With long-term resistance to extraneous hydrolysis function, and it also simplify the combination process of aluminum plastic film and save production technology cost and former material Expect cost.

Hot sealing layer 3(CPP)Thickness is preferably 30-50 microns, and the whole thickness of clad aluminum layers of foil 1 is preferably 200 microns.Its In, 7 line aluminium alloy layers 6 are compound in outside, as sacrificial anode;The thickness of 7 line aluminium alloys preferably accounts for the 10% of whole aluminium foil layer 1. When being packed as soft-package battery and battery is immersed in cooling water, 7 line aluminium alloy is used as water-touching layer.Same inner side thermoplastic Property resin thin film layer 3 and aluminium foil layer 1 between by aluminum plastic film commonly use adhesive 5 it is be bonded compound.By aluminum plastic film provided above Manufactured soft-package battery can long period of soaking in coolant, possess long-term resistance to cooling corrosion function.

Embodiment 3

The present embodiment introduction employs the battery of above-mentioned aluminum plastic film and the application mode of the battery.A kind of soft-package battery is provided, Include electrode material and polymer dielectric and the aluminum plastic film of outer wrap, wherein, soft-package battery is sacrificial using including The aluminum plastic film parcel of the composite bed aluminium foil of domestic animal anode function, such as the composite bed Aluminum alloy foil in embodiment 1 or embodiment 2, i.e., Aluminium foil uses and is compounded with 7072 aluminium alloy skin materials outside 3003 aluminium alloy cores.Soft-package battery uses resistance to anti-freeze cooling liquid leaching above Steep corrosion laminated aluminum film after, the soft-package battery can be immersed in anti-freeze cooling liquid, so as to it is direct with it is antifreeze Coolant carries out heat exchange.As shown in figure 3, after soft-package battery 11 is sealed by top margin 112 and mainboard 13, the sheet of soft-package battery 11 Body is immersed in anti-freeze cooling liquid.The heat transfer effect of so battery is more preferable, the more uniform temperature of battery up and down everywhere.

Embodiment 4

The aluminum plastic film that the present embodiment is introduced is by thermoplastic resin membrane(That is hot sealing layer, such as polypropylene)With composite bed aluminium alloy Aluminium foil is compounded to form.The core layer 7 of aluminium foil layer uses the trade mark, and for 1050 fine aluminium, skin material 6 on the basis of fine aluminium 1050 by adding The aluminium alloy of 4%-7% Zn-ef ficiencies is formed(It is simplified shown as AA1050+4-7%Zn), the corrosion potential of skin material is defeated by core, Pi Cai As anode loss protection core, skin material recombination rate is preferably 10 ± 2%.The condition of heat treatment of Al-alloy aluminium foil layer is to move back Fiery state(O states), thickness is preferably 100-300 microns, more preferably 100-200 microns.Closed compared to traditional composite bed aluminium Gold, the above-mentioned clad aluminum layers of foil using fine aluminium as core of the invention both have the excellent corrosion of resistance to cooling performance, have again fine Ductility and deep drawability.

The aluminum plastic film or its aluminium foil require preferable ductility and deep drawability, such as with GB/T 4156-2007 《Metal sheet and strip Erichsen test》The Erichsen number of standard testing, the aluminum plastic film or its aluminium foil is preferably big In 5 millimeters, it is more highly preferred to be more than 10 millimeters.

The aluminum plastic film or its aluminium foil require preferably resistance to cooling corrosion performance.Decay resistance test method uses The OY aqueous solution(Oyama Water Solution)Corrosion test.OY aqueous corrosions experiment is as follows:

OY aqueous compositions:Chlorion (Cl-):195 ± 1 mg/litres, sulfate ion (SO4 2-):60 ± 0.2 milligrams/ Rise, iron ion (Fe3+):30 ± 0.1 mg/litres, copper ion (Cu2+):1 ± 0.01 mg/litre.The pH of the OY aqueous solution is about For 3(In the case of not specified, OY experiments reclaimed water pH value of solution value of the present invention is each about 3).

OY aqueous temperatures:88 °C, stirred 8 hours with 0.6-0.9 m/s (200rpm) speed, it is small then to stand 16 When;Repeat above-mentioned circulation.

In the experiment of above-mentioned OY aqueous corrosions, ignore any perforation close to aluminium foil edge 5mm.When removing edge in aluminium foil When corrosion failure occurs for any point outside 5mm, the corrosion test time accumulated is that the aluminum plastic film aluminium foil is water-soluble in the OY Corrosion fatigue life in liquid.Experiment display, aluminium foil of embodiment of the present invention corrosion fatigue life are more than 1000 hours.

More than, the corrosion fatigue life of aluminum plastic film or its aluminium foil can also be soaked on real vehicle the corrosion resistant in anti-icing fluid with it Erosion service life is assessed, aluminum plastic film of the service life such as selected on real vehicle more than 5 years, preferably greater than 10 years, more Preferably greater than 15 years.

Embodiment 5

As shown in Figure 4 and Figure 5, the battery heat control device of the present embodiment introduction uses can directly be soaked in coolant for a long time above (Such as the coolant being mainly made up of ethylene glycol and water)In soft-package battery.The soft-package battery heat control device, includes Soft Roll Battery 11 and water base coolant, the outer packing of the soft-package battery 11 are directly contacted with coolant, and the soft-package battery 11 is served as reasons The packaging material of any of the above-described kind of anti-cooling corrosion(Such as the aluminum plastic film of water resistant base cooling corrosion)Formed.The heat control device Also include dividing plate 12, the dividing plate 12 be preferably stagger arrangement saw tooth fin dividing plate shown in Fig. 8 or plain fin as shown in Figure 9 every Plate;At least part surface of dividing plate 12 directly contacts with least part outer surface of soft-package battery 11, and is set in dividing plate 12 There is fluid passage 121, fluid passage 121 directly contacts with battery 11, while the cooling water in fluid passage 121 and battery 11 are straight Connect contact heat-exchanging;One soft-package battery 11 forms a battery unit(Two soft-package batteries can certainly be used to form one Battery unit), battery unit is arranged at intervals with dividing plate 12.On the one hand dividing plate plays a part of to support soft-package battery, on the other hand rise Organize the effect in coolant flow field.

The aluminum plastic film is sealed around by the battery core body, and only battery electrode or electrode connecting end mouth is from the plastic-aluminum Stretched out in film;Battery heat control device also includes mainboard 13, and the mainboard 13 is provided with socket, and the battery is stretched out of aluminum plastic film The part gone out(That is positive and negative electrode lug 111)It is inserted into by the socket on mainboard 13.Preferably, the part top margin of battery 112 are inserted on mainboard 13 also by the socket.

The battery heat control device also includes shell body 14, and the inside of shell body 14 is provided with accommodating chamber, Duo Gesuo In the accommodating chamber for stating the close overall embedded shell body 14 that battery unit forms with dividing plate 12, the shell body 14 also includes stream Body entrance and fluid issuing(Not shown in figure).

The mainboard 13 is located in the accommodating chamber of the shell body 14, and the accommodating chamber is separated as two portions Point, Part I accommodates cell body and dividing plate 12, Part II accommodate the electrode that is stretched out from the aluminum plastic film and/or Electrode connecting end oral area point, physical isolation between the Part I and Part II.

Described battery heat control device also includes coolant, and the coolant is water or comprising ethylene glycol and water Mixed liquor or mixed liquor or anti-freeze cooling liquid comprising propane diols and water.

Preferably, the dividing plate 12 uses metal material;It is highly preferred that the corrosion potential of dividing plate 12 is defeated by aluminium in aluminum plastic film Paper tinsel corrosion potential, such as packaging material metal foil select AA1050 aluminium alloys, and dividing plate 12 selects AA1050+5%Zn.Or dividing plate 12 corrosion potential is defeated by the corrosion potential of the skin material of the aluminium foil of aluminum plastic film, for example packaging material metal foil selects composite AA1050/AA1050+5%Zn aluminium alloys, dividing plate 12 select AA1050+7%Zn.So dividing plate can also play anodic protection, Further prevent battery corrosion from failing.

Embodiment 6

The core and skin material of composite bed aluminium alloy can select any from such as table 1 below option one into option 4:

Table 1

Using the method for embodiment 4, the present embodiment aluminium foil corrosion fatigue life is more than 1000 hours, and even greater than 1500 or 2000 is small When.

Embodiment 7

The present embodiment provides a kind of aluminum plastic film, and the aluminum plastic film includes aluminium foil layer and is compound in the plastic layer of aluminium foil layer surface;Aluminium Layers of foil is composite bed aluminium foil, and aluminium foil layer includes core and the skin material on the outside of core, the corrosion potential of the skin material of aluminium foil layer Less than the corrosion potential of core;Wherein, multilayer skin material of the skin material on the outside of core by two layers of skin material or more than two layers is compound Formed, corrosion potential reduces successively from inside to outside.

For example aluminium foil layer is followed successively by core, first layer skin material, second layer skin material from inside to outside in aluminum plastic film, core is AA1050 aluminium alloys, first layer skin material adds 2% Zn aluminium alloy, second layer skin material to be AA1050 on the basis of being AA1050 on the basis of Add 4% Zn aluminium alloy.So corrosion potential is:Core>First layer skin material>Second layer skin material.So can further it ensure Corrosion is the banded corrosion successively corroded, so as to further avoid pit corrosion, ensures cell safety.

Embodiment 8

The decay resistance that the present embodiment provides another soft-package battery outer packing aluminum plastic film aluminium foil is tested, namely soft-package battery The corrosion tests of resistance to anti-icing fluid.The test method is used for the resistance to anti-icing fluid corrosion life for assessing and determining product.

The body of several identical soft-package batteries is soaked in following mixed solution, the vertical court of the positive and negative lug of soft-package battery On, mixed solution submergence height is to be flushed with soft-package battery top margin lower edge.

Mixed solution composition:It is 40% anti-icing fluid and 60%ASTM solution compositions by volume ratio.Wherein anti-icing fluid model 45% Ethylene glycol antifreeze, solidification point be subzero 30 degrees Celsius;ASTM solution be by 1 liter of distilled water and 148 milligrams of sodium sulphate, 165 milligrams of sodium chloride and 138 milligrams of sodium acid carbonate configurations.

Mixed solution temperature:90 ± 2 degrees Celsius.Mixed solution flow direction is the level side parallel with battery body maximum surface To the flow velocity for flowing through battery body surface is 0.5 m/s.

Experiment is run 76 hours with said temperature and flow velocity, and it is a circulation to shut down and stand 8 hours, is carried out during shutdown molten The inspection of liquid pH value and fluid infusion, solution inspection are divided into pH value and visual examination, do not allow the pH value for occurring more than ± 1 during experiment Change, solution appearance do not allow to become turbid and precipitate.

The corrosion depth of battery outer packing aluminum plastic film aluminium foil can be checked during experiment at any time.If the corrosion of all hot spots Maximum in depth value is more than the 10% of aluminium foil original thickness value, then the maximum corrosion depth value is reached into aluminium foil original thickness Value 10% at the time of the test period that adds up be defined as the corrosion fatigue life of battery outer packing aluminum plastic film aluminium foil, be alsoIt is soft The resistance to anti-icing fluid corrosion life of bag battery.Therefore the so-called life-span in the present embodiment test method, as reach above-mentioned corrosion depth It is worth the test period added up.

In above-mentioned experiment, different places is defined by described above of the present invention, can refer to China Automobile Industry elsewhere Standard QC/T 468-2010.What deserves to be explained is:Soft-package battery outer packing aluminum plastic film of the present invention is preferably by aluminium foil and positioned at aluminium The aluminum plastic film that thermoplastic resin membrane on the inside of paper tinsel is compounded to form, the outside of aluminium foil is without other plastic layers, therefore aluminium foil is at the beginning Directly contacted with anti-icing fluid.But soft-package battery outer packing aluminum plastic film of the present invention can also be(It is though not preferred)By aluminium foil and it is compound in The aluminum plastic film that the thermoplastic resin membrane of aluminium foil inside and the heat-resistant resin Film laminated being compound on the outside of aluminium foil are formed.By In common heat-resistant resin film(Such as PA or PET)It is easy to be swelled by anti-icing fluid and peels off, therefore in order to unify testing standard, Before carrying out above-mentioned corrosion fatigue life experiment, first the heat-resistant resin film outside aluminum plastic film is peeled off, then carries out above-mentioned corrosion again Experimental test.

For the ease of briefly statement, the present invention tests the decay resistance of above-mentioned soft-package battery outer packing aluminum plastic film aluminium foil Be defined as "The resistance to anti-icing fluid corrosion life experiment of specific soft-package battery" or "The resistance to antifreeze corrosion longevity of ZPC soft-package batteries Life experiment”。

In order to meet requirement of the automobile to part durability, select those rotten in the resistance to anti-icing fluid of the specific soft-package battery Lose the soft-package battery that the life value in life test is more than 336 hours.Because electrokinetic cell is very harsh to security requirement, therefore The soft-package battery of the soft-package battery of preferably greater than 500 hours, more preferably greater than 1000 hours;It is further small for preferably greater than 2000 When soft-package battery;It is further the soft-package battery of preferably greater than 5000 hours.

If need to have above-mentioned decay resistance, aluminium foil is needed with suitable construction and/or suitable material group in aluminum plastic film Point and/or suitable thickness.

Meeting the aluminum foil material of above-mentioned resistance to cooling corrosion performance requirement can choose from following material:With sacrificial anode The composite bed aluminium alloy of defencive function.

Meeting the aluminum foil thickness of above-mentioned resistance to cooling corrosion performance requirement can choose from following thickness:120-300 microns.

Such as the composite bed aluminium alloy that AA1050 and 20 micron of the AA7072 that thickness is 100 microns is compounded to form(It is i.e. multiple Close 120 microns of layer aluminium alloy gross thickness), be used to manufacturing aluminum plastic film from both the above aluminium foil and soft-package battery can meet it is above-mentioned resistance to Anti-icing fluid corrosion life requirement, so as to meet motor live time requirement.

Embodiment 9

The present embodiment is described below aluminum plastic film, and its aluminium foil is compounded to form by core and outside skin material, wherein core be 100 microns- 150 microns of 8 line aluminium alloys(Such as 8079 or 8021)Formed, outside skin material is by adding 2%-6% mass hundred on the basis of 8 line aluminium alloys The Zn-ef ficiency of ratio is divided to be formed(It is described in table 2 below), recombination rate preferably takes 10%-20%.Aluminum plastic film containing this Al-alloy, Its corrosion resistance and deep drawing quality are all relatively good, are tested according to the method for embodiment 4, its corrosion fatigue life is more than 1200 hours.

Table 2

Element Silicon Iron Copper Zinc Aluminium Other Mass percent % 0.05-0.30 0.70-1.3 ≤0.05 2.0-6.0 Surplus ≤0.15

Embodiment 10

The present embodiment is described below aluminum plastic film, and its aluminium foil is compounded to form by core and outside skin material, wherein core be 100 microns- 200 microns of 1 line aluminium alloy(Such as 1050)Formed, outside skin material is by adding 2%-6% mass percents on the basis of 1 line aluminium alloy Zn-ef ficiency is formed(Aluminium alloy as shown in table 3), recombination rate takes 10%-20%.Aluminum plastic film containing this Al-alloy, it has Good electrolyte resistance corrosion function and good resistance to cooling water corrosion function;Tested according to the method for embodiment 4, its corrosion-resistant longevity Life is more than 1500 hours.

Table 3

Alloying element Silicon Si Iron Fe Copper Cu Manganese Mn Magnesium Mg Zinc Zn Vanadium V Titanium Ti Aluminium Al It is other Mass percent % ≤0.25 ≤0.40 ≤0.05 ≤0.05 ≤0.05 2.0-6.0 ≤0.05 ≤ 0.03 Surplus ≤ 0.03

Embodiment 11

The present embodiment is to the aluminium alloy of individual layer 1050 and composite bed aluminium alloy(Core is 1050 aluminium alloys, skin material is that current potential is relatively negative Sacrifice layer)Corrosion resistance contrast test is carried out in OY experiments.

Anti-icing fluid system is selected to carry out OY experiments, experimental period is 4 weeks, and carrying out nitric acid dousing to material surface after experiment goes Except corrosion product, concrete condition are as follows:

As shown in Figure 7, after anti-icing fluid system OY is tested 4 weeks, left figure show AA1050 individual layers aluminium alloy, and there occurs more bright Aobvious spot corrosion, spot corrosion are more serious;And obvious spot corrosion does not occur for the aluminum alloy surface that right figure show compound sacrifice layer.Thus Understand, by the more negative skin material of aluminium alloy core surface recombination corrosion potential, can effectively suppress the generation of spot corrosion.By After the aluminum plastic film inner surface plastic layer heat-sealing that above-mentioned composite bed aluminium foil is formed, the time of the resistance to cooling water corrosion of aluminium foil disclosure satisfy that vapour Car requirement;Simultaneously because aluminium foil inside core for fine aluminium, its electrolyte-resistant corrosive power also superior to traditional ferro-aluminum aluminium alloy, So as to ensure the life-span of battery and safe handling.

Embodiment 12

The present embodiment provides a kind of soft-package battery heat control device, and it includes the fin of soft-package battery, metal material(Such as sawtooth wing Piece)With water base coolant.At least part surface of the fin directly contacts with soft-package battery at least part outer surface.If Dry soft-package battery forms a battery unit, and battery unit is arranged at intervals with fin, the fin support soft-package battery and group Knit flow field and form fluid passage;Water base coolant flows in the fluid passage, and water base coolant directly contacts with soft-package battery Heat exchange.The soft-package battery uses laminated aluminum film, and the aluminum plastic film is by the thermoplastic resin membrane positioned at inner side and positioned at outer The aluminium foil layer of side is compounded to form, and complex method can be that hot method is compound can also be by adhesive dry laminating, the aluminium foil layer With water base coolant direct contact heat transfer.Wherein, the aluminium foil layer includes core and the skin material on the outside of core, aluminium foil layer Core be 1 line aluminium alloy(Such as AA1050 or AA1060)Or 8 line aluminium alloy(Such as AA8021 or AA8079), aluminium foil layer Skin material is aluminium allumen(Such as AA7072), or aluminium foil layer skin material by 1 line aluminium alloy or 3 line aluminium alloys or 8 line aluminium alloys On the basis of add 1%-10% mass percents Zn-ef ficiency formed.Not only there is aluminium foil in above-mentioned aluminum plastic film barrier steam to make With, and there is the corrosion resistant effect of long-term hydrolysis, and the protection with higher mechanical strength without outside nylon layer, Also there is good mouldability and packaging to act on.

Cooling is soaked compared to the insulating oil as described in CN202550023U, is cooled down using anti-icing fluid or water as immersion type The heat-sinking capability of the battery cooling system of medium can be obviously improved.Its heat-sinking capability can improve in the case of same cooling system 15 ~ 20 times, ability further 5 ~ 10 degrees Celsius of the lifting of battery tolerance coolant temperature is embodied in, between battery cell The temperature difference is further contracted to 1.0 ~ 2.0 degrees Celsius.In the case where current battery heat management bottleneck problem still protrudes very much, this Kind technique effect is exactly that this area is expected very much, and above-mentioned radiating effect is that indirect type water cooling or immersion type oil cooling are not reached 's.

The specific embodiment of the present invention is described in detail above, but it is intended only as example, it is of the invention and unlimited It is formed on particular embodiments described above.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention and Substitute also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and Modification, all should be contained within the scope of the invention.

Claims (3)

1. a kind of soft-package battery heat control device, it includes soft-package battery, fin and water base coolant;
At least part surface of the fin directly contacts with soft-package battery at least part outer surface, and is provided with fin Fluid passage;Several soft-package batteries form a battery unit, and battery unit is arranged at intervals with fin, and the fin support is soft Bag battery and tissue flow field;Water base coolant flows in the fluid passage, water base coolant and soft-package battery direct contact heat transfer, The water base coolant is the anti-icing fluid using ethylene glycol and water as main component;
The soft-package battery uses laminated aluminum film, and the aluminum plastic film is by the thermoplastic resin membrane positioned at inner side and positioned at outside Aluminium foil layer be compounded to form;The aluminium foil layer and water base coolant direct contact heat transfer;
Wherein, the aluminium foil layer includes core and the skin material on the outside of core, and the core of aluminium foil layer is 1 line aluminium alloy or 8 Line aluminium alloy, the skin material of aluminium foil layer contain the Zn-ef ficiency of 1%-10% mass percents.
2. soft-package battery heat control device as claimed in claim 1, it is characterised in that
The core is to contain following component(Mass percent)Aluminium alloy:Si≤0.25wt%;Cu≤0.05wt%;Mg≤ 0.05wt%;Zn≤0.05wt%;Mn≤0.05wt%;Ti≤0.03wt%;V≤0.05wt%;Fe≤0.4wt%;Remaining is aluminium;
Or;The core is to contain following component(Mass percent)Aluminium alloy:Si≤0.25wt%;Cu≤0.05wt%; Mg≤0.05wt%;Zn≤0.05wt%;Mn≤0.05wt%;Ti≤0.03wt%;V≤0.05wt%;Fe≤0.4wt%;Sm 0.1- 0.3wt%;Remaining is aluminium;
The skin material is to contain following component(Mass percent)Aluminium allumen:Zn 4-7wt%;Si 0.5-1.0wt%;Ti 0.1-0.2wt%;Fe 0.5-1.5wt%;
Or the skin material is to contain following component(Mass percent)Aluminium allumen:Zn 4-7wt%;Si 0.5- 1.0wt%;Ti 0.1-0.2wt%;Fe 0.5-1.5wt%;Sm 0.1-0.3wt%.
3. a kind of method of the soft-package battery heat control device cooling battery unit of usage right requirement 1, the heat control device Fluid passage in accommodate water base coolant using ethylene glycol and water as main component, methods described includes:
Heat energy is conducted into the aluminum plastic film from the battery unit;And
Heat energy is directly conducted in water base coolant to cool down the battery unit from the aluminum plastic film.
CN201710314942.0A 2016-05-08 2017-05-07 Long-life soft-package battery heat control device CN107346807A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN2016102964104 2016-05-08
CN201610296410 2016-05-08
CN2016103165132 2016-05-16
CN201610316513 2016-05-16
CN2016104271552 2016-06-15
CN201610427155 2016-06-15
CN2016110585862 2016-11-28
CN201611058586 2016-11-28

Publications (1)

Publication Number Publication Date
CN107346807A true CN107346807A (en) 2017-11-14

Family

ID=60254184

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201710314941.6A CN107346806A (en) 2016-05-08 2017-05-07 Efficient soft-package battery heat control device and cooling means
CN201710314942.0A CN107346807A (en) 2016-05-08 2017-05-07 Long-life soft-package battery heat control device
CN201720496500.8U CN208173634U (en) 2016-05-08 2017-05-07 Efficient soft-package battery heat control device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201710314941.6A CN107346806A (en) 2016-05-08 2017-05-07 Efficient soft-package battery heat control device and cooling means

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201720496500.8U CN208173634U (en) 2016-05-08 2017-05-07 Efficient soft-package battery heat control device

Country Status (2)

Country Link
CN (3) CN107346806A (en)
WO (1) WO2017193880A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108193105A (en) * 2018-02-07 2018-06-22 中铝材料应用研究院有限公司 A kind of high heat conduction die-cast aluminum alloy material and preparation method thereof
CN108165850A (en) * 2018-02-07 2018-06-15 中铝材料应用研究院有限公司 A kind of high heat conduction die casting aluminium zinc alloy material and preparation method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030219649A1 (en) * 2002-05-24 2003-11-27 Matsushita Electric Industrial Co., Ltd. Nonaqueous electrolyte secondary battery
KR100648704B1 (en) * 2005-07-29 2006-11-23 삼성에스디아이 주식회사 Secondary battery module
JP4901169B2 (en) * 2005-09-22 2012-03-21 トヨタ自動車株式会社 Fuel cell stack
KR101143279B1 (en) * 2009-08-20 2012-05-11 주식회사 엘지화학 Battery Pack Having Novel Cooling Structure
CN104466040B (en) * 2014-12-05 2017-03-08 明冠新材料股份有限公司 A kind of lithium battery encapsulation aluminum plastic film and its manufacturing process

Also Published As

Publication number Publication date
CN107346806A (en) 2017-11-14
WO2017193880A1 (en) 2017-11-16
CN208173634U (en) 2018-11-30

Similar Documents

Publication Publication Date Title
CN104124488B (en) Device for the battery module of indirect cooling environment protection type automobile
KR101840499B1 (en) Exterior material for lithium ion battery
US9162549B2 (en) Evaporation cycle heat exchange system for vehicle
US9249348B2 (en) Heat transfer system additive package
US9077058B2 (en) Cooling member of compact structure and excellent stability and battery module employed with the same
EP2955780A1 (en) Battery pack with enhanced safety against leakage of liquid-phase refrigerant
CN103518272B (en) Cladding for lithium ion cell, lithium ion cell, and method for producing lithium ion cell
US20130295422A1 (en) Cooling member of improved assembly efficiency and battery module employed with the same
US7344655B1 (en) Coolant, method of enclosing coolant, and cooling system
CN103563151B (en) Fuel cell system
US10516194B2 (en) Thermal management solution for battery pack
US8066902B2 (en) Methods for inhibiting corrosion in brazed metal surfaces and coolants and additives for use therein
JP4300395B2 (en) Battery exterior laminate and secondary battery
JP5460857B2 (en) Battery system, battery module, and method for cooling battery module
KR101084978B1 (en) Cooling Manifold And Method For Manufacturing The Cooling Manifold
US6818146B2 (en) Chemical base for engine coolant/antifreeze with improved thermal stability properties
CN103380534B (en) There is the cooling component of the cooling effectiveness of raising and adopt the battery module of this cooling component
US9080500B2 (en) Device for exchanging heat for gases containing acids
CN101013748B (en) A cell barrier for a rechargeable battery module and rechargeable battery module
CN205646062U (en) Be used for free cooling device of battery, battery module , group battery and vehicle
JP6249062B2 (en) Packaging materials for electrochemical cells
CN101698793B (en) Automobile antifreeze
US8906531B2 (en) Module for electric energy storage assemblies for ageing detection of said assemblies
JP5543489B2 (en) Multilayer metal sheet
JP6019812B2 (en) Packaging materials for electrochemical cells

Legal Events

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