CN108736092A - A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material - Google Patents

A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material Download PDF

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Publication number
CN108736092A
CN108736092A CN201810235195.6A CN201810235195A CN108736092A CN 108736092 A CN108736092 A CN 108736092A CN 201810235195 A CN201810235195 A CN 201810235195A CN 108736092 A CN108736092 A CN 108736092A
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CN
China
Prior art keywords
battery
micro
channel flat
soft
rectangular
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Pending
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CN201810235195.6A
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Chinese (zh)
Inventor
冯能莲
李德壮
丰收
董士康
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Beijing University of Technology
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Beijing University of Technology
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Priority to CN201810235195.6A priority Critical patent/CN108736092A/en
Publication of CN108736092A publication Critical patent/CN108736092A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A kind of micro-channel flat is related to the field of heat management of battery with the compound battery group method of phase-change material.The heat management grouping method that one kind meeting domestic electric vehicle (pure electric automobile, hybrid vehicle) rectangular/soft-package battery is devised for rectangular/soft-package battery.Micro-channel flat is fitted in the both sides of monolithic or two panels single, arranged side by side or double battery by this method, solid-solid phase transition material is arranged in the part that micro-channel flat is not bonded, and the cooling/heating to battery is realized by the compound action of heat transfer medium and solid-solid phase transition material in micro-channel flat.This method is easy to extend the service life of battery system, and can improve the safety of battery system according to the heat management design requirement adjustment type of cooling to enhance the heat transfer effect of heat transfer medium and battery.

Description

A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material
Technical field
The present invention relates to pure electric automobile (pure electric automobile, hybrid vehicle) it is rectangular/soft-package battery field of heat management.
Background technology
Increasing in environmental problems such as energy crisis, global warming, environmental pollutions, electric vehicle is increasingly As the developing direction of future automobile.With going deep into for electric vehicle research, a critical component of the battery as electric vehicle It is increasingly becoming the hot spot of research, and the quality of battery performance is then a key factor of Development of Electric Vehicles.
The principal element for influencing battery has charge-discharge magnification, charge and discharge blanking voltage, shelves condition, temperature in use etc., this Several factors mutually restrict, and influence each other.But for temperature in use, current battery cell in low temperature (be less than -30 DEG C) and High temperature all can not work normally in the environment of (being more than 50 DEG C), and causing at this time also can not be normal by the vehicle in energy source of battery Work, make vehicle be unable to reach round-the-clock running requirement compare with orthodox car its use have larger limitation.
In addition, electric vehicle, when starting climbing or accelerating suddenly, the battery in centre position accumulates heat, battery temperature It steeply rises, battery electrode material, diaphragm and electrolyte etc. will decompose, and generate gas and increase inside battery air pressure, production Heat out-of-control phenomenon.When situation is serious, or even liquid leakage can be caused, the major accidents such as explosion occur, are made to the operation of vehicle At security risk.
The presence of temperature in use problem seriously constrains the development and popularization of electric vehicle, and therefore, battery temperature controls mesh Before have become new-energy automobile development bottleneck.How by battery temperature control be still in a certain range one in a short time Insoluble problem.
Invention content
Herein for rectangular/soft-package battery, a kind of micro-channel flat and the compound battery group side of phase-change material are devised Method.This method is easy to adjust the type of cooling of rectangular/soft-package battery according to heat management design requirement, to enhance heat transfer medium with The heat transfer effect of battery extends the service life of battery system, and can improve the safety of battery system.
A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material, which is characterized in that micro- will lead to Road flat tube is fitted in the both sides of monolithic or two panels single, arranged side by side or double battery, and part that micro-channel flat is not bonded arrangement is solid- Solid phase change material is realized by the compound action of liquid heat-transfer medium in micro-channel flat and solid-solid phase transition material to battery Cooling/heating.
Further, rectangular/soft-package battery coats certain thickness high thermal conductivity coefficient silica gel.
Further, it can also be multichannel that micro-channel flat, which can be single channel,.
Further, it can also be counter current flow that liquid heat-transfer medium, which can be one-way flow in micro-channel flat multichannel, It is dynamic.
Further, the type of cooling of rectangular/soft-package battery is determined by heat management design requirement.
Further, external force circulation heat exchange and electricity can be used in the cooling/heating of liquid heat-transfer medium in micro-channel flat The multipath for heating auxiliary heat-exchanging is realized.
Micro-channel flat designed by this paper is with the compound rectangular/soft-package battery grouping method of phase-change material in battery modules Arrange that several rectangular/soft-package battery monomers, monolithic or the both sides of two panels single, arranged side by side or double battery arrange microchannel in structure Flat tube, micro-channel flat use the preferable material of heat conductivility.The part cloth that rectangular/soft-package battery is not bonded by micro-channel flat Set solid-solid phase transition material.Entire battery modules pack and are equipped with the inlet and outlet and fire proof heat-insulation layer of liquid.This method is easy In the type of cooling for determining battery according to heat management design requirement：When rectangular/soft-package battery calorific value is smaller, battery temperature is less than When the phase transition temperature of solid-solid phase transition material, battery is cooled down only with the latent heat of phase change of solid-solid phase transition material；When rectangular/Soft Roll electricity It is compound using micro-channel flat and phase-change material when pond calorific value is larger, temperature is higher than the phase transition temperature of solid-solid phase transition material The type of cooling cools down battery, makes battery work in the normal temperature range.Correspondingly, micro-channel flat can be selected according to battery module The size choice arrangement mode of rectangular/soft-package battery capacity：When rectangular/soft-package battery capacity is smaller, micro-channel flat It is arranged in the both sides of two panels arranged side by side or double battery；When rectangular/soft-package battery capacity is larger, micro-channel flat is arranged in monolithic Or the both sides of single battery.Mini-channel flat pipe may be disposed to string type around line mode can also be arranged to parallel type.Microchannel It can also be multichannel that flat tube, which can be single channel, and liquid heat-transfer medium can also counter current flow with one-way flow in multichannel It is dynamic.A variety of types of flow enhance the heat transfer effect between heat transfer medium and battery, reduce the temperature difference between battery, make battery It always works within the scope of suitable temperature.
Fig. 1 monolithics/single battery group method schematic diagram
Fig. 2 two panels arranged side by side/two rows battery group method schematic diagram
Fig. 3 monolithics/single battery cooling structure schematic diagram
Fig. 4 two panels arranged side by side/two rows battery cooling structure schematic diagram
Wherein：
1. 2. micro-channel flat of fire proof heat-insulation layer
3. rectangular/4. solid-solid phase transition material of soft-package battery monomer
Specific implementation mode
The embodiment of the present invention is as shown in Figure 1, Figure 2, Figure 3, Figure 4.
The micro-channel flat that the present invention the designs rectangular/soft-package battery grouping method compound with phase-change material is flat by microchannel Pipe is fitted in the both sides of monolithic or two panels single, arranged side by side or double battery, and solid-solid phase is arranged in the part that micro-channel flat is not bonded Become material, by the compound action of liquid heat-transfer medium in micro-channel flat and solid-solid phase transition material realize to the cooling of battery/ Heating.
Rectangular/soft-package battery coats certain thickness high thermal conductivity coefficient silica gel, on the one hand high thermal conductivity coefficient silica gel can be mended Cell expansion deflection is repaid, on the other hand can increase the heat exchange area of battery to ensure the consistency of battery temperature field.It is micro- logical Road flat tube can be that single channel can also be multichannel.When micro-channel flat is multichannel, the liquid heat-transfer medium in channel Can be one-way flow can also be opposite flowing, a variety of types of flow enhance the effect of the heat exchange between heat transfer medium and battery Fruit reduces the temperature difference between battery, ensure that the consistency of module temperature field.This method is easy to according to heat management design requirement Determine the type of cooling of battery：When rectangular/soft-package battery calorific value is smaller, battery temperature be less than solid-solid phase transition material phase transformation When temperature, battery is cooled down only with the latent heat of phase change of solid-solid phase transition material；When rectangular/soft-package battery calorific value is larger, battery temperature When degree is higher than the phase transition temperature of solid-solid phase transition material, electricity is cooled down using the compound type of cooling of micro-channel flat and phase-change material Pond makes battery work in the normal temperature range.Correspondingly, rectangular/Soft Roll that micro-channel flat can be selected according to battery module The size choice arrangement mode of battery capacity：When rectangular/soft-package battery capacity is smaller, micro-channel flat is arranged in two panels arranged side by side Or the both sides of double battery；When rectangular/soft-package battery capacity is larger, micro-channel flat is arranged in the two of monolithic or single battery Side.Mini-channel flat pipe may be disposed to string type around line mode can also be arranged to parallel type.It is situated between when using outside liquid heat transfer When the method cooling battery of matter forced circulation, liquid heat-transfer medium can be carried out using the air-conditioning system of new-energy automobile cold But, air cooling way can also be used to carry out cooling and then cooling battery to liquid heat-transfer medium.It is situated between when using outside liquid heat transfer When the method heating battery of matter forced circulation, liquid heat-transfer medium can be added using the air-conditioning system of new-energy automobile Heat to liquid heat-transfer medium can also heat and then heat battery in such a way that electric heating film heats micro-channel flat. Liquid heat-transfer medium type in mini-channel flat pipe is unlimited, preferentially selects the heat transferring medium that thermal coefficient is big, viscosity is small.

Claims (6)

1. a kind of micro-channel flat and the compound battery group method of phase-change material, for rectangular/soft-package battery, feature exists In micro-channel flat to be fitted in the both sides of monolithic or two panels single, arranged side by side or double battery, the portion that micro-channel flat is not bonded Solid-solid phase transition material is set in distribution, is realized by the compound action of liquid heat-transfer medium in micro-channel flat and solid-solid phase transition material To the cooling/heating of battery.
2. method according to claim 1, which is characterized in that coat silica gel outside rectangular/soft-package battery.
3. method according to claim 1, which is characterized in that micro-channel flat is serially arranged or parallel arrangement.
4. method according to claim 1, which is characterized in that micro-channel flat is single channel either multichannel.
5. method according to claim 1, which is characterized in that the cooling/heating mode of rectangular/soft-package battery and microchannel The arrangement form of flat tube is determined by heat management design requirement.
6. method according to claim 1, which is characterized in that the cooling/heating of liquid heat-transfer medium is adopted in micro-channel flat It is realized with the multipath of external force circulation heat exchange and/or electrical heating auxiliary heat-exchanging.
CN201810235195.6A 2018-03-21 2018-03-21 A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material Pending CN108736092A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109638382A (en) * 2018-12-16 2019-04-16 北京工业大学 A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material
CN109916147A (en) * 2019-03-22 2019-06-21 国兴(东莞)新能源科技有限公司 A kind of soft-package battery high vacuum microchannel de-watering apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106785210A (en) * 2017-01-08 2017-05-31 北京工业大学 A kind of cooling/heating method of rectangular cell
CN107579306A (en) * 2017-08-22 2018-01-12 合肥国轩高科动力能源有限公司 A kind of battery module cooled down based on air and phase-change material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106785210A (en) * 2017-01-08 2017-05-31 北京工业大学 A kind of cooling/heating method of rectangular cell
CN107579306A (en) * 2017-08-22 2018-01-12 合肥国轩高科动力能源有限公司 A kind of battery module cooled down based on air and phase-change material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109638382A (en) * 2018-12-16 2019-04-16 北京工业大学 A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material
CN109916147A (en) * 2019-03-22 2019-06-21 国兴(东莞)新能源科技有限公司 A kind of soft-package battery high vacuum microchannel de-watering apparatus

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Application publication date: 20181102