CN109166985A - Coating for battery and preparation method thereof, battery modules, humidity control system and adjusting method - Google Patents
Coating for battery and preparation method thereof, battery modules, humidity control system and adjusting method Download PDFInfo
- Publication number
- CN109166985A CN109166985A CN201811052974.9A CN201811052974A CN109166985A CN 109166985 A CN109166985 A CN 109166985A CN 201811052974 A CN201811052974 A CN 201811052974A CN 109166985 A CN109166985 A CN 109166985A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- temperature
- battery modules
- battery
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 71
- 239000011248 coating agent Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 230000005291 magnetic effect Effects 0.000 claims abstract description 100
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000002122 magnetic nanoparticle Substances 0.000 claims abstract description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 18
- 235000019441 ethanol Nutrition 0.000 claims description 11
- 230000013011 mating Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 229940056319 ferrosoferric oxide Drugs 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 235000013339 cereals Nutrition 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000011897 real-time detection Methods 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 7
- 239000000696 magnetic material Substances 0.000 abstract description 5
- 206010037660 Pyrexia Diseases 0.000 abstract description 2
- 239000002105 nanoparticle Substances 0.000 description 14
- 230000007704 transition Effects 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 241000209094 Oryza Species 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- 230000005307 ferromagnetism Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910002518 CoFe2O4 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910003264 NiFe2O4 Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000005308 ferrimagnetism Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002907 paramagnetic material Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring 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
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Automation & Control Theory (AREA)
- Primary Cells (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention relates to a kind of coating for battery and preparation method thereof, battery modules and humidity control system and adjusting methods.Coating of the invention includes the magnetic nanoparticle material with superparamagnetism.Battery modules are to coat one layer of magnetic material with superparamagnetism in the package casing outer surface of battery module, and/or the package casing inner surface of battery modules and/or outer surface.Utilize battery coating of the invention, magnetic nanoparticle material with superparamagnetism is in magnetisable fever in alternating magnetic field, when battery is in low temperature environment (in the environment of lower than 15 DEG C), the operating temperature of battery can be improved, to improve performance of the battery in low temperature environment.Humidity control system and adjusting method of the invention can make battery modules be maintained in metastable temperature range (such as 20~30 DEG C), so that the property retention of battery modules be made to stablize.
Description
Technical field
The invention belongs to battery technology fields more particularly to a kind of coating for battery and preparation method thereof, battery mould
Group, humidity control system and adjusting method.
Background technique
As country is to the support energetically of new-energy automobile and guidance, new-energy automobile is developed rapidly, to make
It obtains lithium ion battery to be widely applied in fields such as electric vehicles, while also the performance of lithium ion battery is proposed higher
It is required that.When in the environment of lithium ion battery being exposed to lower than 15 DEG C, the chemical substance activity of battery is significantly reduced, and impedance increases
Greatly, electrode polarization aggravates, and the chemical property of battery reduces；Under low temperature, lead storage battery, lithium battery and fuel cell etc. all can be by
To the influence of low temperature, only different degrees.
Currently, Northern Part of China winter temperature is generally lower than 0 DEG C, -30 DEG C are more below in extremely cold area.And low temperature environment
Under to the continual mileage of electric car can not show a candle to temperature higher than 15 DEG C mileage, dynamic characteristics be greatly reduced, service life reduction,
Charging time extension, safety etc. have a significant impact.
Therefore, it is badly in need of a kind of scheme that can solve battery and be also able to maintain superperformance in low temperature environment.
Summary of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, low temperature ring is in the present invention provides a kind of battery coating, when battery
When border, it is in battery coating in alternating magnetic field, i.e., releasable heat increases the temperature of battery modules, to be lifted at low
Battery performance in warm environment.Battery temperature regulating system provided by the invention, can also make the temperature of battery be maintained at certain
In range, so that the property retention of battery be made to stablize.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include:
According to an aspect of the invention, there is provided a kind of coating for battery, the coating includes having superparamagnetic
The magnetic nanoparticle material of property.
Battery coating as described above, it is preferable that the magnetic nanoparticle material is ferroso-ferric oxide (Fe3O4), four oxygen
Two cobalt ferrite (CoFe2O4) and nickel ferrite based magnetic loaded (NiFe2O4At least one of).
Coating as described above, it is preferable that the partial size of the magnetic nanoparticle material is 5~15nm, the coating
With a thickness of 0.2~2 μm.
According to another aspect of the present invention, a kind of method for preparing the coating for battery is provided, at room temperature, by magnetic
Property nano-particle material be scattered in the aqueous solution of ethyl alcohol, ultrasonic agitation mixes and slurry is made, slurry is sprayed into surface to be sprayed,
The coating is obtained after drying.
According to another aspect of the present invention, a kind of battery modules are provided, the battery modules include at least one battery
Module, battery module or battery modules are equipped with package casing, wherein
Coating of the invention is provided in the outer surface of the package casing of the battery module；
Coating of the invention is provided in the outer surface of the package casing of the battery modules and/or inner surface.
According to another aspect of the present invention, a kind of humidity control system of battery is provided, comprising:
Battery modules, the battery modules are battery modules of the invention；
Temperature-detecting device, the temperature-detecting device are connected or are contacted with the battery modules, for detecting battery mould
The temperature of group；
Temperature control equipment, the temperature control equipment are communicated with the temperature-detecting device, described for receiving
The temperature that temperature-detecting device detects, and the temperature detected is judged, it is sent and is instructed according to judging result；
Field generator for magnetic, the field generator for magnetic can to the battery modules apply alternating magnetic field, and with it is described
Temperature control equipment is communicated, and to receive the instruction that the temperature control equipment is sent, is started or stoped according to described instruction
The field generator for magnetic.
Humidity control system according to the present invention, when the temperature control equipment judges the temperature detected,
Defining the temperature detected is t, and presetting minimum threshold is tmin, presetting max-thresholds is tmax；
As t < tminWhen, the temperature control equipment then sends a command to the field generator for magnetic, starts the magnetic field hair
Generating apparatus, the magnetic nanoparticle material in alternating magnetic field and the battery modules coating that the field generator for magnetic generates
Material cooperation generates heat, to improve the temperature of the battery modules；
Work as tmin<t<tmaxWhen, the temperature control equipment does not send instruction, makes the field generator for magnetic, is maintained at and works as
Preceding state；
Work as t > tmaxWhen, then the field generator for magnetic is sent a command to, stops the field generator for magnetic, to stop
The alternating magnetic field for stating field generator for magnetic generation continues to produce with the magnetic nanoparticle material mating in the battery modules coating
Heat amount.
Humidity control system according to the present invention,
The field generator for magnetic includes coil and power supply；Wherein,
Battery module described in the coil encircling and/or the circular battery modules；
The power supply is electrically connected with the coil, and the power supply is AC power source,
The temperature control equipment is communicated with the power supply, to control the connection and disconnection of power supply.
According to another aspect of the present invention, a kind of method of regulating cell module temperature is provided,
Humidity control system of the invention is provided；
The method comprising the steps of:
The temperature of S1, the temperature-detecting device real-time detection battery modules, and will test temperature and be sent to the temperature
Control device；
S2, the temperature control equipment judge the temperature detected,
Defining the temperature detected is t, and presetting minimum threshold is tmin, presetting max-thresholds is tmax；
As t < tminWhen, then the field generator for magnetic is sent a command to, the field generator for magnetic, the magnetic field are started
The magnetic nanoparticle material mating in alternating magnetic field and the battery modules coating that generating device generates generates heat, thus
Improve the temperature of the battery modules；
Work as tmin<t<tmaxWhen, the temperature control equipment does not send instruction, makes the field generator for magnetic, is maintained at and works as
Preceding state；
Work as t > tmaxWhen, then the field generator for magnetic is sent a command to, stops the field generator for magnetic, described in stopping
The alternating magnetic field that field generator for magnetic generates continues to generate with the magnetic nanoparticle material mating in the battery modules coating
Heat；
S3, circulation carry out step S1 and S2, and the temperature t of the battery modules is made to be maintained at tminAnd tmaxBetween.
(3) beneficial effect
The beneficial effects of the present invention are:
The outer surface of the package casing of battery module, and/or the encapsulation of battery modules is arranged in coating provided by the invention
The inner surface of shell and/or outer surface, the magnetic nanoparticle material with superparamagnetism contained in coating is in alternating magnetic field
Under magnetisable fever, when battery is in low temperature environment, start alternating magnetic field, then the temperature of battery can be improved, to improve
The performance in low temperature environment of battery.
Battery coating of the invention, manufacture craft is simple, can be applied to large-scale industrial production.
Battery temperature regulating system provided by the invention and adjusting method can make battery modules be maintained at one relatively surely
Within the scope of fixed temperature (such as 20~30 DEG C), so that the property retention of battery modules be made to stablize.
Detailed description of the invention
Fig. 1 (A1) shows ferriferrous oxide nano-particle hysteresis loop；
Hysteresis loop partial enlarged view under Fig. 1 (A2) ferriferrous oxide nano-particle field strength -200-200Oe；
Fig. 1 (B) shows the FC-ZFC figure of ferriferrous oxide nano-particle；
Fig. 2 shows the battery temperature regulating system schematic diagrames of one embodiment of the present invention；
Fig. 3 shows the battery temperature regulating system schematic diagram of one embodiment of the present invention；
Fig. 4 shows the temperature regulation flow process figure of one embodiment of the present invention.
[description of symbols]
1: the package casing of battery modules；
2: battery coating；
3: coil.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
According to an aspect of the present invention, a kind of coating for battery is provided, coating includes the magnetic with superparamagnetism
Property nano-particle material.
Wherein, there is the magnetic variation with temperature of the magnetic nanoparticle material of superparamagnetism and change, when environment temperature
Degree is lower than transition temperature (TB) when, the magnetism of material is difficult to be changed；And when temperature is higher than transition temperature (TB) when, magnetism is very
It is easy the magnetic field change with surrounding and changes, the polarity of magnet also shows randomness, it is difficult to stable magnetic property is kept, it is this
Phenomenon is referred to as superparamagnetic e ffect (SuperparaMagnetic Effect).Have the feature magnetic material be have it is super
The magnetic material of paramagnetic material.
For the present invention, using the magnetic material with superparamagnetism as coating, when applying alternating magnetic field to it
When, magnetism is easy to happen change, heat is released while magnetism changes, therefore the temperature of battery can be improved, so as to
Improve performance of the battery when low temperature environment works.
A kind of embodiment of coating according to the present invention, the preferred ferroso-ferric oxide of magnetic nanoparticle material, four oxygen two
At least one of cobalt ferrite and nickel ferrite based magnetic loaded.
A kind of embodiment of coating according to the present invention, the partial size of magnetic nanoparticle material are 5~15nm；The painting
Layer with a thickness of 0.2~2 μm.
And for the magnetic nanoparticle material with superparamagnetism, there are two physical quantity is extremely important.
First is that there is the critical dimension (diameter Dp) of superparamagnetism in magnetic nanoparticle, if environment temperature is kept constant,
Then only as particle size D≤Dp, magnetic nanoparticle material is possible to show superparamagnetism, in general, magnetic
The critical dimension (diameter Dp) that superparamagnetism occurs in the aggregate of nano particle is 16~30nm, and magnetism of the present invention is received
The partial size of rice grain material is preferably 5~15nm, to ensure that it has superparamagnetism.
Second is that transition temperature TB, for being less than the magnetic nanoparticle material of critical dimension (diameter Dp), as environment temperature T
<TBWhen, ferromagnetism (ferromagnetism or ferrimagnetism) is presented in particle, as environment temperature T >=TBWhen, superparamagnetism is presented in particle.This hair
Bright battery coating, under normal circumstances, when environment temperature is lower than 15 DEG C, the performance of battery will be declined, i.e. uncommon at this time
The temperature that can improve battery is hoped, it therefore meets TBThe magnetic material that 15 DEG C of < can meet demand.Preferred magnetic in the present invention
Property nano-particle material ferroso-ferric oxide, four two cobalt ferrites of oxidation and nickel ferrite based magnetic loaded, these three materials have lower transition temperature,
Especially its transition temperature of ferroso-ferric oxide can reach -103.15 DEG C, meet the demand of this programme, when environment temperature is greater than it
Transition temperature TBWhen, in the case where applying magnetic field, heat can be generated because of the superparamagnetic e ffect of itself, so as to electricity
Pond heating, to improve its performance in lower environment temperature.
In addition, preferably 0.2~2 μm of the thickness of coating；In the range, heating effect is best, will not influence battery
Other performances.
The hysteresis loop and FC-ZFC of the ferriferrous oxide nano-particle preferably used in the present invention are referring to Fig. 1, in which:
Fig. 1 (A1) it is ferriferrous oxide nano-particle hysteresis loop；Fig. 1 (A2) it is -200~200Oe of ferriferrous oxide nano-particle field strength
Lower hysteresis loop partial enlarged view；Fig. 1 (B) is ferriferrous oxide nano-particle FC-ZFC figure.
By hysteresis loop it is found that referring specifically to Fig. 2 (A1), the saturation magnetization of ferriferrous oxide nano-particle is about
72.7emug-1, with the reduction of external magnetic field intensity, the ferriferrous oxide nano-particle intensity of magnetization is reduced rapidly；When additional magnetic
When field intensity is reduced to zero, the magnetic moment of sample is reduced to 17Oe, and coercivity is close to zero under the conditions of having existing for instrument error, specifically
Referring to Fig. 1 (A2).In conjunction with Fig. 1 (B) FC-ZFC curve it is found that the transition temperature of the magnetic particle is about 170K, i.e., -103.15
℃。
It follows that the ferriferrous oxide nano-particle coating being prepared has superparamagnetism, it is being greater than -103.15
DEG C when, that is, have superparamagnetism, when being greater than -103.15 DEG C, alternating magnetic field applied to it, can produce heat, improve temperature.
According to another aspect of the present invention, a kind of method for preparing coating of the present invention is provided at room temperature to receive magnetism
Rice grain material is scattered in the aqueous solution of ethyl alcohol, and ultrasonic agitation mixes and slurry is made, and slurry is sprayed into surface to be sprayed, is done
The coating is obtained after dry.
Coating prepared according to the methods of the invention, due to dispersing magnetic nanoparticle material in the aqueous solution of ethyl alcohol,
Due to dispersed preferable, the coating being prepared is more evenly.
Further, the magnetic nanoparticle material forms point that concentration is 1~80mg/ml in the aqueous solution of ethyl alcohol
Dispersion liquid, the volume ratio of ethyl alcohol and water is 10~100:1~90 in the ethanol solution；
The operating procedure of the ultrasonic agitation are as follows: 10~60min is stirred by ultrasonic under 25-100KHZ frequency, magnetism is received
Rice grain material is uniformly dispersed in the aqueous solution of ethyl alcohol.
Coating prepared according to the methods of the invention, coating also can be selected and be prepared by magnetically controlled sputter method.
According to another aspect of the present invention, a kind of battery modules are provided, battery modules include at least one battery module,
The battery modules or single battery module are equipped with package casing, wherein
The outer surface of the package casing of battery module is provided with coating of the invention；
The outer surface of the package casing of battery modules and/or inner surface are provided with coating of the invention.
Battery modules according to the present invention are generally said again, the coating will not be arranged in the outer surface of battery core, in battery mould
The coating will not be arranged in the inner surface of block, this is the influence in order to avoid coating to battery core performance.
Battery modules of the invention, which are provided with coating of the invention, can produce heat when applying alternating magnetic field, improve
The temperature of battery modules, so as to improve performance of the battery modules in low temperature environment.
According to another aspect of the present invention, a kind of humidity control system of battery is provided, as shown in Figure 3, comprising:
Battery modules, battery modules are battery modules of the invention；
Temperature-detecting device, temperature-detecting device is connected or is contacted with battery modules, for detecting the temperature of battery modules；
Temperature control equipment, temperature control equipment are communicated with temperature-detecting device, for receiving temperature-detecting device
The temperature detected, and the temperature detected is judged, it is sent and is instructed according to judging result；
Field generator for magnetic, field generator for magnetic can apply alternating magnetic field, and and temperature control equipment to battery modules
It is communicated, to receive the instruction of temperature control equipment transmission, field generator for magnetic is started or stoped according to instruction.
Humidity control system according to the present invention can be adjusted the own temperature of battery modules preferably reasonable at one
In range, general control is at 15~45 DEG C, and further preferably control is at 20~30 DEG C, so that the battery made is being in lower ring
When the temperature of border, the temperature of itself can still be maintained in metastable temperature range, to keep its property retention opposite
Stability.Wherein, temperature-detecting device can select temperature sensor.
Humidity control system according to an embodiment of the present invention, temperature control equipment sentence the temperature detected
When disconnected,
Defining the temperature detected is t, and presetting minimum threshold is tmin, presetting max-thresholds is tmax；
As t < tminWhen, the temperature control equipment then sends a command to the field generator for magnetic, starts the magnetic field hair
Generating apparatus, the magnetic nanoparticle material in alternating magnetic field and the battery modules coating that the field generator for magnetic generates
Material cooperation generates heat, to improve the temperature of the battery modules；
Work as tmin<t<tmaxWhen, the temperature control equipment does not send instruction, makes the field generator for magnetic, is maintained at and works as
Preceding state；
Work as t > tmaxWhen, then the field generator for magnetic is sent a command to, stops the field generator for magnetic, to stop
The alternating magnetic field for stating field generator for magnetic generation continues to produce with the magnetic nanoparticle material mating in the battery modules coating
Heat amount.
According to above-mentioned regulating system, the temperature t of battery modules can be made to be maintained at tminAnd tmaxBetween；In general, tmin
It is preferred that the numerical value within the scope of 15~20 DEG C, tmaxIt is preferred that the numerical value within the scope of 30~45 DEG C, so that battery modules be made to be maintained at one
In optimal operating temperature range, stablize the property retention of battery.
Humidity control system according to an embodiment of the present invention, as shown in figure 4, the field generator for magnetic includes line
Circle 3 and power supply, power supply are alternating source；Wherein, coil encircling battery module and/or the circular battery modules；Power supply and line
Circle electrical connection, temperature control equipment is communicated with power supply, to control the connection and disconnection of power supply.
According to another aspect of the present invention, a kind of method of regulating cell module temperature is provided,
Humidity control system of the invention is provided；
The method comprising the steps of:
The temperature of S1, temperature-detecting device real-time detection battery modules, and will test temperature and be sent to temperature control equipment；
S2, temperature control equipment judge the temperature detected,
Defining the temperature detected is t, and presetting minimum threshold is tmin, presetting max-thresholds is tmax；
As t < tminWhen, then the field generator for magnetic is sent a command to, the field generator for magnetic, the magnetic field are started
The magnetic nanoparticle material mating in alternating magnetic field and the battery modules coating that generating device generates generates heat, thus
Improve the temperature of the battery modules；
Work as tmin<t<tmaxWhen, the temperature control equipment does not send instruction, makes the field generator for magnetic, is maintained at and works as
Preceding state；
Work as t > tmaxWhen, then the field generator for magnetic is sent a command to, stops the field generator for magnetic, described in stopping
The alternating magnetic field that field generator for magnetic generates continues to generate with the magnetic nanoparticle material mating in the battery modules coating
Heat；
S3, circulation carry out step S1 and S2, and the temperature t of the battery modules is made to be maintained at tminAnd tmaxBetween.
According to above-mentioned regulating system, the temperature t of battery modules can be made to be maintained at tminAnd tmaxBetween；In general, tmin
It is preferred that the numerical value within the scope of 15~20 DEG C, tmaxIt is preferred that the numerical value within the scope of 30~45 DEG C, so that battery modules be made to be maintained at one
In optimal operating temperature range, stablize the property retention of battery.
A kind of method detailed process of the regulating cell module temperature of specific embodiment according to the present invention referring to fig. 4,
Comprising steps of
The temperature of S1, temperature-detecting device real-time detection battery modules, and will test temperature and be sent to temperature control equipment；
S2, temperature control equipment judge the temperature detected,
Defining the temperature detected is t, and presetting minimum threshold is tmin, presetting max-thresholds is tmax；
As t < tminWhen, then the field generator for magnetic is sent a command to, the field generator for magnetic, the magnetic field are started
The magnetic nanoparticle material mating in magnetic field and the battery modules coating that generating device generates generates heat, to improve
The temperature of the battery modules；
Work as tmin<t<tmaxWhen, the temperature control equipment does not send instruction, makes the field generator for magnetic, is maintained at and works as
Preceding state；
Work as t > tmaxWhen, then the field generator for magnetic is sent a command to, stops the field generator for magnetic, described in stopping
The alternating magnetic field that field generator for magnetic generates continues to generate with the magnetic nanoparticle material mating in the battery modules coating
Heat；
S3, circulation carry out step S1 and S2, and the temperature t of the battery modules is made to be maintained at tminAnd tmaxBetween.
Adjusting method according to the present invention can monitor the temperature of battery modules in real time, and can be by the temperature of battery modules
Degree controls in a certain range, and such as 15~45 DEG C, further preferred 20~30 DEG C.
In order to preferably explain the present invention, in order to understand, below by specific embodiment, the present invention is described in detail.
Embodiment 1
At room temperature, by the ferroso-ferric oxide that partial size is 8nm pour into ethyl alcohol aqueous solution (ethyl alcohol: the volume ratio of water be 50:
50) in, it is dispersed into the dispersion liquid of 5mg/ml, evenly dispersed dispersion liquid is obtained after 50KHZ ultrasonic agitation 15min, after mixing
Homogeneous dispersion is sprayed on 1 inner surface of package casing of battery modules, forms the coating 2 with a thickness of 0.5 μm.
Embodiment 2
At room temperature, the ferroso-ferric oxide that partial size is 10nm is poured into ethanol water (ethyl alcohol: water volume ratio is=10:50)
In, it is dispersed into the dispersion liquid of 8mg/ml, obtains evenly dispersed solution after carrying out ultrasonic agitation 10min, by dispersion liquid after mixing
The package casing inner surface of even application battery modules forms the coating 2 with a thickness of 1.0um.
Embodiment 3
At room temperature, the ferroso-ferric oxide that partial size is 12nm is poured into ethanol water (ethyl alcohol: water volume ratio 90:50)
It is dispersed into the dispersion liquid of 75mg/ml, obtains evenly dispersed solution after carrying out ultrasonic agitation 25min, mixed solution is equal
The even outer surface for being sprayed into battery module forms the coating 2 with a thickness of 2.0 μm.
Battery modules in Examples 1 to 3 are assembled in the form of " 2 and 5 string " by 3.6V/12.5Ah single battery
(18V/25Ah) is named as battery modules M1, M2, M3；Middle battery modules surface is named as electricity without battery coating as a comparison case
Chi Mo group M0.
The battery modules of Examples 1 to 3 are placed in battery temperature regulating system of the invention, using temperature of the invention
Adjusting method controls the temperature of battery modules between 20~30 DEG C, and being in environment temperature Wei be -10/25 DEG C, -20/25 DEG C
Under conditions of, survey its battery capacity percentage, in which: battery capacity percentage=low temperature battery capacity/high temperature battery holds
Measure x100%.
Wherein the battery modules in comparative example are also not disposed in temperature of the invention and are adjusted due to uncoated coating of the invention
In system.
Test result is as follows shown in table 1:
1 test result of table
It can be seen that from the result of table 1, using coating of the invention and humidity control system of the invention, make battery mould
The temperature of group itself controls between 20~30 DEG C, even if when environment temperature is -10 DEG C or -20 DEG C of low temperature environment, electricity
Tankage is also able to maintain relatively stable, and battery capacity percentage also keeps stable, and is much higher than comparative example M0Battery capacity
Percentage.It is possible thereby to illustrate using coating of the invention, the temperature of adjustable battery modules, even if making it in low temperature environment
Under be also able to maintain good battery performance, and utilize humidity control system of the invention, the property retention of battery modules can be made
Stablize.
The above described is only a preferred embodiment of the present invention, being not the limitation for doing other forms to the present invention, appoint
What those skilled in the art can use the equivalence enforcement that technology contents disclosed above were changed or be modified as equivalent variations
Example.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to the above embodiments
What simple modification, equivalent variations and remodeling, still falls within the protection scope of technical solution of the present invention.
Claims (9)
1. a kind of coating for battery, which is characterized in that the coating includes the magnetic nanoparticle material with superparamagnetism
Material.
2. coating as described in claim 1, which is characterized in that the magnetic nanoparticle material is ferroso-ferric oxide, four oxygen
At least one of two cobalt ferrites and nickel ferrite based magnetic loaded.
3. coating as described in claim 1, which is characterized in that the partial size of the magnetic nanoparticle material is 5~15nm；Institute
State coating with a thickness of 0.2~2 μm.
4. a kind of method for preparing coating described in any one of claim 1-3, which is characterized in that at room temperature, magnetism is received
Rice grain material is scattered in the aqueous solution of ethyl alcohol, and ultrasonic agitation mixes and slurry is made, and slurry is sprayed into surface to be sprayed, is done
The coating is obtained after dry.
5. a kind of battery modules, which is characterized in that the battery modules include at least one battery module, the battery module
And/or battery modules are equipped with package casing, wherein
The outer surface of the package casing of the battery module is provided with the described in any item coatings of claim 1-3；
It is provided with described in any one of claim 1-3 in the outer surface of the package casing of the battery modules and/or inner surface
Coating.
6. a kind of humidity control system of battery characterized by comprising
Battery modules, the battery modules be claim 5 described in battery modules,
Temperature-detecting device, the temperature-detecting device is connected or is contacted with the battery modules, for detecting battery modules
Temperature；
Temperature control equipment, the temperature control equipment are communicated with the temperature-detecting device, for receiving the temperature
The temperature that detection device detects, and the temperature detected is judged, it is sent and is instructed according to judging result；
Field generator for magnetic, the field generator for magnetic can to the battery modules apply alternating magnetic field, and with the temperature
Control device is communicated, and to receive the instruction that the temperature control equipment is sent, is started or stoped according to described instruction described
Field generator for magnetic.
7. humidity control system according to claim 6, which is characterized in that the temperature control equipment is to the temperature detected
When degree is judged,
Defining the temperature detected is t, and presetting minimum threshold is tmin, presetting max-thresholds is tmax；
As t < tminWhen, the temperature control equipment then sends a command to the field generator for magnetic, starts the magnetic field and fills
It sets, the alternating magnetic field that the field generator for magnetic generates is matched with the magnetic nanoparticle material in the battery modules coating
It closes and generates heat, to improve the temperature of the battery modules；
Work as tmin<t<tmaxWhen, the temperature control equipment does not send instruction, and the field generator for magnetic is made to be maintained at current shape
State；
Work as t > tmaxWhen, then the field generator for magnetic is sent a command to, the field generator for magnetic is stopped, to stop the magnetic
The magnetic nanoparticle material mating in alternating magnetic field and the battery modules coating that field generating device generates continues to generate heat
Amount.
8. humidity control system according to claim 6, which is characterized in that
The field generator for magnetic includes coil and power supply；Wherein,
Battery module described in the coil encircling and/or the circular battery modules；
The power supply is electrically connected with the coil, and the power supply is AC power source,
The temperature control equipment is communicated with the power supply, to control the connection and disconnection of power supply.
9. a kind of method of regulating cell module temperature, which is characterized in that
Humidity control system as claimed in claim 6 to 8 is provided；
The method comprising the steps of:
The temperature of S1, the temperature-detecting device real-time detection battery modules, and will test temperature and be sent to the temperature control
Device；
S2, the temperature control equipment judge the temperature detected,
Defining the temperature detected is t, and presetting minimum threshold is tmin, presetting max-thresholds is tmax；
As t < tminWhen, then the field generator for magnetic is sent a command to, the field generator for magnetic is started, the magnetic field occurs
The magnetic nanoparticle material mating in alternating magnetic field and the battery modules coating that device generates generates heat, to improve
The temperature of the battery modules；
Work as tmin<t<tmaxWhen, the temperature control equipment does not send instruction, makes the field generator for magnetic, is maintained at current shape
State；
Work as t > tmaxWhen, then the field generator for magnetic is sent a command to, the field generator for magnetic is stopped, stopping the magnetic field
The magnetic nanoparticle material mating in alternating magnetic field and the battery modules coating that generating device generates continues to generate heat；
S3, circulation carry out step S1 and S2, and the temperature t of the battery modules is made to be maintained at tminAnd tmaxBetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052974.9A CN109166985A (en) | 2018-09-10 | 2018-09-10 | Coating for battery and preparation method thereof, battery modules, humidity control system and adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052974.9A CN109166985A (en) | 2018-09-10 | 2018-09-10 | Coating for battery and preparation method thereof, battery modules, humidity control system and adjusting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109166985A true CN109166985A (en) | 2019-01-08 |
Family
ID=64894648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811052974.9A Pending CN109166985A (en) | 2018-09-10 | 2018-09-10 | Coating for battery and preparation method thereof, battery modules, humidity control system and adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109166985A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2860402Y (en) * | 2005-08-31 | 2007-01-24 | 哈尔滨工程大学 | Magnetic-transmitting coating bracket and electromagnetic means for heating same |
| CN103083082A (en) * | 2012-12-25 | 2013-05-08 | 北京天助基业科技发展有限公司 | Medial tool capable of quickly heating |
| CN204596904U (en) * | 2015-04-10 | 2015-08-26 | 西安中科新能源科技有限公司 | A kind of lithium battery group with heater |
| CN206505998U (en) * | 2017-02-24 | 2017-09-19 | 北京佳宇康华科技有限公司 | A kind of battery pack heating and thermal insulation structure |
| CN107742763A (en) * | 2017-08-29 | 2018-02-27 | 努比亚技术有限公司 | A kind of battery and control battery temperature method |
-
2018
- 2018-09-10 CN CN201811052974.9A patent/CN109166985A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2860402Y (en) * | 2005-08-31 | 2007-01-24 | 哈尔滨工程大学 | Magnetic-transmitting coating bracket and electromagnetic means for heating same |
| CN103083082A (en) * | 2012-12-25 | 2013-05-08 | 北京天助基业科技发展有限公司 | Medial tool capable of quickly heating |
| CN204596904U (en) * | 2015-04-10 | 2015-08-26 | 西安中科新能源科技有限公司 | A kind of lithium battery group with heater |
| CN206505998U (en) * | 2017-02-24 | 2017-09-19 | 北京佳宇康华科技有限公司 | A kind of battery pack heating and thermal insulation structure |
| CN107742763A (en) * | 2017-08-29 | 2018-02-27 | 努比亚技术有限公司 | A kind of battery and control battery temperature method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Preparation and characterization of polymer-coated core–shell structured magnetic microbeads | |
| Hergt et al. | Physical limits of hyperthermia using magnetite fine particles | |
| Sun et al. | Synthesis and characterization of biocompatible Fe3O4 nanoparticles | |
| Shlapa et al. | Iron-doped (La, Sr) MnO 3 manganites as promising mediators of self-controlled magnetic nanohyperthermia | |
| Chen et al. | Magnetic nanofibers: unique properties, fabrication techniques, and emerging applications | |
| CN104575911B (en) | Preparation method of high-permeability FeNiMo magnetic powder core | |
| Wang et al. | Core− shell-structured magnetic ternary nanocubes | |
| Tajabadi et al. | Effect of alkaline media concentration and modification of temperature on magnetite synthesis method using FeSO4/NH4OH | |
| CN103740365B (en) | A kind of FeOOH-ZnFe 2o 4mictomagnetism liquid and preparation method thereof | |
| Kahmei et al. | Clustering of MnFe2O4 nanoparticles and the effect of field intensity in the generation of heat for hyperthermia application | |
| Cai et al. | Preparation and characterization of multiresponsive polymer composite microspheres with core–shell structure | |
| CN102179005A (en) | Magnetic nano particle magnetic-induction thermal focusing system based on complex magnetic field | |
| Sun et al. | Hydrothermal synthesis of magnetite: Investigation of influence of aging time and mechanism | |
| Khosroshahi et al. | Characterisation of binary (Fe3O4/SiO2) biocompatible nanocomposites as magnetic fluid | |
| Taufiq et al. | Various magnetic properties of magnetite nanoparticles synthesized from iron-sands by coprecipitation method at room temperature | |
| CN109166985A (en) | Coating for battery and preparation method thereof, battery modules, humidity control system and adjusting method | |
| Zhao et al. | Study of preparation and magnetic properties of silica-coated cobalt ferrite nanocomposites | |
| CN105836808A (en) | Bonded ferrite magnetic powder, bonding magnet and preparation method thereof | |
| Zhang et al. | Communication—magnetic properties of Fe/Na2SiO3/Fe3O4 soft magnetic composite by two-stage ball milling | |
| Liu et al. | Preparation of monodisperse magnetic polystyrene microspheres and its surface chemical modification | |
| JP2010089991A (en) | Ferromagnetic particles for cell heating, aqueous dispersion thereof and method for producing aqueous dispersion | |
| Akhtar et al. | Chemical dynamics of monodispersed iron oxide nanoparticles | |
| Wang et al. | Fabrication of superparamagnetic hydroxyapatite with highly ordered three-dimensional pores | |
| Li et al. | Preparation and characterization of narrow-dispersed magnetic colloidal nanoparticle cluster/silica microspheres with controlled sizes, high saturation magnetization and MRI enhancement effect | |
| Müller et al. | Hysteresis losses in iron oxide nanoparticles prepared by glass crystallization or wet chemical precipitation |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190703 Address after: 101102 Beijing Tongzhou District Huanyu Road No.3 Building No.14, 3 Floors Applicant after: Sander New Energy Technology Development Co., Ltd. Applicant after: Thornton Amperex Technology Limited Address before: Unit 402, Fuqing Huayuan Commercial and Residential Building, Bayi Town, Linzhi City, Tibet Autonomous Region Applicant before: Sound Group Co.,Ltd. Applicant before: Thornton Amperex Technology Limited |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190108 |