CN108822545A - A kind of conductive polyphenylene sulfide resin, preparation method and power battery - Google Patents
A kind of conductive polyphenylene sulfide resin, preparation method and power battery Download PDFInfo
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- CN108822545A CN108822545A CN201810612485.8A CN201810612485A CN108822545A CN 108822545 A CN108822545 A CN 108822545A CN 201810612485 A CN201810612485 A CN 201810612485A CN 108822545 A CN108822545 A CN 108822545A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Abstract
The present invention provides a kind of conductive polyphenylene sulfide resin, is made of the component of following mass fraction：Polyphenylene sulfide：25~60%；Silicate glass fiber：15~40%；Calcium carbonate：5~40%；Carbon black：0.1~1%；Carbon fiber：1~15%.The present invention is directed to the performance requirement of power battery, it is improved by the formula of poly-p-phenylene sulfide ether resin, obtain the good polyphenylene sulfide of contact resistance value stability, using the conductive polyphenylene sulfide resin in the application as power battery made of cover board, power supply performance is stablized, while mechanical performance and fine heat-resisting performance；In addition, the application is controlled in 0.1% by electrical property fraction defective by 20% by technological improvement, reduces production cost, improve product quality, meet the high standards of new-energy automobile power battery.The present invention also provides a kind of preparation method of conductive polyphenylene sulfide resin and a kind of power batteries.
Description
Technical field
The invention belongs to new energy car battery technical field more particularly to a kind of conductive polyphenylene sulfide resins, its preparation
Method and power battery.
Background technique
With the worsening of Global Environmental Problems, the new-energy automobile as substitution conventional gasoline fuels and energy source is just
More and more it is concerned by people.
The power resources of new-energy automobile are generally power battery, mainly there is lithium ion battery and ternary battery, still, mesh
The preceding power battery used is affected by environment larger, after placing for a period of time or under high temperature environment, the electricity of power battery
Change in resistance is larger, and variation range causes the fluctuation generated by electric current to be unable to ensure power battery extremely in 2~10000 Ω
Service performance, such as duration performance, service life.
Summary of the invention
The purpose of the present invention is to provide a kind of conductive polyphenylene sulfide resin, preparation method and power battery, the present invention
In polyphenylene sulfide resistance value stability it is good, manufactured power battery electrical stability is good.
The present invention provides a kind of conductive polyphenylene sulfide resin, is made of the component of following mass fraction：
Polyphenylene sulfide：25~60%；
Silicate glass fiber：15~40%；
Calcium carbonate：5~40%；
Carbon black：0.1~1%；
Carbon fiber：1~15%.
Preferably, the diameter of the silicate glass fiber is 10~15 μm；
The partial size of the silicate glass fiber is 800~1500 mesh；
The mass fraction of the silicate glass fiber is 20~30%.
Preferably, the fibre diameter of the carbon fiber is 5~10 μm；
The fibre length of the carbon fiber is 0.01~0.1mm；
The mass fraction of the carbon fiber is 5~10.
Preferably, the mass fraction of the polyphenylene sulfide is 30~50%.
Preferably, the mass fraction of the calcium carbonate is 15~30%.
Preferably, the mass fraction of the carbon black is 0.2~0.8%.
The present invention provides a kind of preparation method of conductive polyphenylene sulfide resin, includes the following steps：
Based on mass fraction, by 25~60% polyphenylene sulfide, 15~40% silicate glass fiber, 5~40%
Calcium carbonate, 0.1~1% carbon black and the mixing of 1~15% carbon fiber, are molded, obtain conductive polyphenylene sulfide resin.
Preferably, the mold temperature of the injection molding is 130~150 DEG C；
The pressure of the injection molding is 80~150MPa；
The speed of the injection molding is 40~150mm/sec；
The time of the injection molding is 10~30s.
Preferably, the barrel temperature of the injection molding is：First segment：290~300 DEG C；Second segment：300~320 DEG C；Third
Section：310~330 DEG C；4th section：310~330 DEG C.
The present invention provides a kind of power battery, which is characterized in that the battery cover board of the power battery be claim 1~
Conduction made of preparation method described in conductive polyphenylene sulfide resin or claim 7~9 any one described in 6 any one
Polyphenylene sulfide.
The present invention provides a kind of conductive polyphenylene sulfide resin, is made of the component of following mass fraction：Polyphenylene sulfide：25~
60%；Silicate glass fiber：15~40%；Calcium carbonate：5~40%；Carbon black：0.1~1%；Carbon fiber：1~15%.
Polyphenylene sulfide (PPS) is the first big special engineering plastics, have good heat resistance, resistance to chemical corrosion,
Electrical property, flame retardant property and adhesive property etc. are widely used in automobile, the fields such as electronic apparatus and household electrical appliances.Especially new energy
Automobile batteries cover board, conductive sheet of the conductive polyphenylene sulfide mainly as anode.But conductive polyphenylene sulfide electricity in the prior art
Change in resistance is very big, and the fluctuation range of resistance value is between 2~10000 Ω, that is to say, that the polyphenyl of tens ohm resistances
After thioether places a period of time, resistance value may will be fluctuated to several kilohms, and the present invention is directed to the performance requirement of power battery,
It is improved by the formula of poly-p-phenylene sulfide ether resin, obtains the good polyphenylene sulfide of resistance value stability, by this Shen
Please in conductive polyphenylene sulfide resin as power battery made of cover board, power supply performance is stablized, while mechanical performance and heat-resisting
Function admirable；In addition, the application is controlled in 0.1% by electrical property fraction defective by 20% by technological improvement, reduces life
Cost is produced, product quality is improved, meets the high standards of new-energy automobile power battery.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the mold temperature controlling curve in injection moulding process of the present invention.
Specific embodiment
The present invention provides a kind of conductive polyphenylene sulfide resins, are made of the component of following mass fraction：
Polyphenylene sulfide：25~60%；
Silicate glass fiber：15~40%；
Calcium carbonate：5~40%；
Carbon black：0.1~1%；
Carbon fiber：1~15%.
In the present invention, the mass fraction of the polyphenylene sulfide (PPS) is 25~60%, preferably 30~45%, specifically
, in an embodiment of the present invention, it can be 45%, 60% or 30%；The polyphenylene sulfide is a kind of white powder, average mark
Son amount is 0.4~0.5 ten thousand, and density is 1.3~1.8g/cm3, crystallinity is high, hard and crisp, relative density 1.362, and fusing point 275~
290 DEG C, l50 DEG C of glass transition temperature, 700 DEG C start to decompose, 260 DEG C of heat distortion temperature >, steady in 400 DEG C of air or nitrogen
It is fixed, 250 DEG C of long-term use temperature.Chemical corrosion resistance is excellent, to inorganic acid, alkali, salt, organic acid, ester, ketone, ester, alcohol, phenol, rouge
Fat hydrocarbon, aromatic hydrocarbon, chlorohydrocarbon etc. are stablized.It is dissolved in askarel, at 170 DEG C or less insoluble in most solvents.UV resistant
It is good with 60Co ray.1.34~1.36 water imbibition of relative density (for 24 hours) < 0.02%, tensile strength > 96Mpa, elongation
102 DEG C of 0.8%~1.3%, Martin heat resistance >, impact strength (non-notch) > 7.2kJ/m2, Rockwell hardness R121, limit oxygen refers to
Number 44~53%.
The fibre diameter of the silicate glass fiber is preferably 10~15 μm, and more preferably 11~14 μm, most preferably
12~13 μm；The partial size of the silicate glass fiber is preferably 800~1500 mesh, more preferably 1000~1200 mesh；It is described
The mass fraction of silicate glass fiber is 15~40%, preferably 20~35%, specifically, in an embodiment of the present invention,
It can be 25%, 35% or 40%.
The mass fraction of the calcium carbonate is 5~40%, preferably 10~30%, more preferably 15~25%, specifically,
In an embodiment of the present invention, it can be 10% or 25%.
The mass fraction of the carbon black is 0.1~1%, preferably 0.2~0.8%, more preferably 0.5~0.7%, specifically
, in an embodiment of the present invention, it can be 0.1%, 0.5% or 1%.
The fibre length of the carbon fiber is preferably 5~10 μm, more preferably 6~9 μm, most preferably 7~8 μm, described
The fibre diameter of carbon fiber is preferably 0.01~0.1mm, more preferably 0.03~0.08mm, most preferably 0.05~0.06mm；
The mass fraction of the carbon fiber is 1~15%, preferably 5~10%, specifically, in an embodiment of the present invention, can be
4.9%, 9% or 14.9%.
The present invention also provides a kind of preparation methods of conductive polyphenylene sulfide resin, include the following steps：
Based on mass fraction, by 25~60% polyphenylene sulfide, 15~40% silicate glass fiber, 5~40%
Calcium carbonate, 0.1~1% carbon black and the mixing of 1~15% carbon fiber, are molded, obtain conductive polyphenylene sulfide resin.
In the present invention, type, source and the dosage of each raw material and the above type of various raw materials, source and use
Amount is consistent, and details are not described herein.
In the present invention, mold temperature used in the injection molding is preferably 130~150 DEG C, and more preferably 140 DEG C；Institute
The four sections of temperature setting for stating barrel in injection molding is as follows：First segment：290~300 DEG C；Second segment：300~320 DEG C；Third section：310
~330 DEG C；4th section：310~330 DEG C；The temperature of nozzle is preferably 310~330 DEG C in the injection molding, and more preferably 320 DEG C；
The pressure of the injection molding is preferably 80~150MPa (injection molding machine integral pressure utilization rate 60~95%), more preferably 90~
140MPa, most preferably 100~120MPa；The speed of the injection molding is preferably middling speed to high speed injection motding, it is particularly preferred as 40~
150mm/s, more preferably 50~140mm/s, most preferably 80~100mm/s；The time of the injection molding is preferably 10~30s,
More preferably 20s.
In the present invention, the mold temperature of the injection molding is preferably controlled according to curve shown in Fig. 1.
When the present invention uses the mold of suitable shape, can be molded to obtain conductive polyphenylene sulfide resin according to the method described above
Battery cover board.
The present invention provides a kind of conductive polyphenylene sulfide resin, is made of the component of following mass fraction：Polyphenylene sulfide：25~
60%；Silicate glass fiber：15~40%；Calcium carbonate：5~40%；Carbon black：0.1~1%；Carbon fiber：1~15%.
Polyphenylene sulfide (PPS) is the first big special engineering plastics, have good heat resistance, resistance to chemical corrosion,
Electrical property, flame retardant property and adhesive property etc. are widely used in automobile, the fields such as electronic apparatus and household electrical appliances.Especially new energy
Automobile batteries cover board, the present invention are directed to the performance requirement of power battery, are improved, obtained by the formula of poly-p-phenylene sulfide ether resin
To the good polyphenylene sulfide of resistance value stability, using the conductive polyphenylene sulfide resin in the application as made of cover board
Power battery, power supply performance is stablized, while mechanical performance and fine heat-resisting performance, meets the height of new-energy automobile power battery
Standard requirements.
In order to further illustrate the present invention, with reference to embodiments to a kind of conductive polyphenylene sulfide tree provided by the invention
Rouge, preparation method and power battery are described in detail, but cannot be understood as limiting the scope of the present invention.
Embodiment 1
Raw material is mixed according to following proportion：
Polyphenylene sulfide：45%；
Silicate glass fiber：35%；
Calcium carbonate：10%；
Carbon black：1%；
Carbon fiber：9%；
Obtained mixed raw material filling barrel, sets four sections of temperature of barrel, is injected mixed raw material by 310 DEG C of nozzle
In mold, 130 DEG C of mold temperature, mold fills up rear cooling and shaping, obtains polyphenylene sulfide battery cover board.
Wherein, four sections of temperature settings of barrel are as follows：First segment：290℃；Second segment：300℃；Third section：310℃；4th
Section：310℃；
Injection pressure 80MPa, speed 40mm/s.
Embodiment 2
Raw material is mixed according to following proportion：
Polyphenylene sulfide：60%；
Silicate glass fiber：25%；
Calcium carbonate：10%；
Carbon black：0.5%；
Carbon fiber：14.5%；
Obtained mixed raw material filling barrel, sets four sections of temperature of barrel, is injected mixed raw material by 330 DEG C of nozzle
In mold, 150 DEG C of mold temperature, mold fills up rear cooling and shaping, obtains polyphenylene sulfide battery cover board.
Wherein, four sections of temperature settings of barrel are as follows：First segment：300℃；Second segment：320℃；Third section：330℃；4th
Section：330℃；
Injection pressure 150MPa, speed 150mm/s.
Embodiment 3
Raw material is mixed according to following proportion：
Polyphenylene sulfide：30%；
Silicate glass fiber：40%；
Calcium carbonate：25%；
Carbon black：0.1%；
Carbon fiber：4.9%；
Obtained mixed raw material filling barrel, sets four sections of temperature of barrel, is injected mixed raw material by 320 DEG C of nozzle
In mold, 140 DEG C of mold temperature, mold fills up rear cooling and shaping, obtains polyphenylene sulfide battery cover board.
Wherein, four sections of temperature settings of barrel are as follows：First segment：300℃；Second segment：310℃；Third section：320℃；4th
Section：320℃；
Injection pressure 100MPa, speed 100mm/s.
Corresponding performance test is carried out to battery cover board obtained in Examples 1 to 3, the results are shown in Table 1,
The performance data of battery cover board in 1 embodiment of the present invention 1~3 of table
The present invention has carried out stability test, test side to the conductive polyphenylene sulfide resin battery cover board in Examples 1 to 3
Method and test result are as follows：
High/low-temperature impact test：
Polyphenylene sulfide cover board in the embodiment of the present application 1 is stored 8 hours at -40 DEG C, is then deposited at 85 DEG C
Storage 8 hours, 5 circulations, then sub-cooled and test its resistance value within 30min repeatedly, and result is 420.67 Ω.
Low temperature storage test：
After polyphenylene sulfide cover board in the embodiment of the present application 1 is stored 48 hours at -40 DEG C, its resistance is tested
Value is 525.9 Ω.
High temperature and humidity test：
Polyphenylene sulfide cover board in the embodiment of the present application 1 is stored 7 days in the environment of 85 DEG C, humidity are 95%,
Its resistance value is tested, is 337.81 Ω.
Vacuum bakeout test
By the polyphenylene sulfide cover board in the embodiment of the present application 1 at 110 DEG C vacuum bakeout 48 hours, test its resistance
Value, result are 409.7 Ω.
Salt spray test：
According to the salt spray test method in GB/T2423.17-2008, by the polyphenylene sulfide in the embodiment of the present application 1
After cover board carries out salt spray test 48 hours, 16 hours are stood, tests its resistance value, result is 424.36 Ω.
It can be seen that the polyphenylene sulfide used in the prior art is easily compared with thousands of undulating value, in the present invention
Polyphenylene sulfide resistance value undulating value only tens to fluctuating between several hundred, resistance value undulating value is small, electric performance stablity, together
When also there is preferable mechanical property and heat resistance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of conductive polyphenylene sulfide resin, is made of the component of following mass fraction：
Polyphenylene sulfide：25~60%；
Silicate glass fiber：15~40%；
Calcium carbonate：5~40%；
Carbon black：0.1~1%；
Carbon fiber：1~15%.
2. conductive polyphenylene sulfide resin according to claim 1, which is characterized in that the diameter of the silicate glass fiber
It is 10~15 μm；
The partial size of the silicate glass fiber is 800~1500 mesh；
The mass fraction of the silicate glass fiber is 20~30%.
3. conductive polyphenylene sulfide resin according to claim 1, which is characterized in that the fibre diameter of the carbon fiber is 5
~10 μm；
The fibre length of the carbon fiber is 0.01~0.1mm；
The mass fraction of the carbon fiber is 5~10%.
4. conductive polyphenylene sulfide resin according to claim 1, which is characterized in that the mass fraction of the polyphenylene sulfide is
30~50%.
5. conductive polyphenylene sulfide resin according to claim 1, which is characterized in that the mass fraction of the calcium carbonate is 15
~30%.
6. conductive polyphenylene sulfide resin according to claim 1, which is characterized in that the mass fraction of the carbon black is 0.2
~0.8%.
7. a kind of preparation method of conductive polyphenylene sulfide resin, includes the following steps：
Based on mass fraction, by 25~60% polyphenylene sulfide, 15~40% silicate glass fiber, 5~40% carbonic acid
Calcium, 0.1~1% carbon black and the mixing of 1~15% carbon fiber, are molded, obtain conductive polyphenylene sulfide resin.
8. preparation method according to claim 7, which is characterized in that the mold temperature of the injection molding is 130~150 DEG C；
The pressure of the injection molding is 80~150MPa；
The speed of the injection molding is 40~150mm/sec；
The time of the injection molding is 10~30s.
9. preparation method according to claim 7, which is characterized in that the barrel temperature of the injection molding is：First segment：290
~300 DEG C；Second segment：300~320 DEG C；Third section：310~330 DEG C；4th section：310~330 DEG C.
10. a kind of power battery, which is characterized in that the battery cover board of the power battery is claim 1~6 any one institute
Conductive polyphenylene sulfide tree made of preparation method described in the conductive polyphenylene sulfide resin or claim 7~9 any one stated
Rouge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810612485.8A CN108822545A (en) | 2018-06-14 | 2018-06-14 | A kind of conductive polyphenylene sulfide resin, preparation method and power battery |
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|---|---|---|---|
| CN201810612485.8A CN108822545A (en) | 2018-06-14 | 2018-06-14 | A kind of conductive polyphenylene sulfide resin, preparation method and power battery |
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Cited By (3)
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| CN113025040A (en) * | 2021-03-09 | 2021-06-25 | 上海普利特伴泰材料科技有限公司 | PPS (polyphenylene sulfide) special plastic capable of being used for conductive columns in lithium battery cover plate assembly |
| CN115026989A (en) * | 2022-05-07 | 2022-09-09 | 深圳市东方亮彩精密技术有限公司 | New energy battery pack, preparation method and new energy equipment |
| CN116855075A (en) * | 2023-05-04 | 2023-10-10 | 国材(苏州)新材料科技有限公司 | Composite preparation method for improving usability of polyphenylene sulfide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113025040A (en) * | 2021-03-09 | 2021-06-25 | 上海普利特伴泰材料科技有限公司 | PPS (polyphenylene sulfide) special plastic capable of being used for conductive columns in lithium battery cover plate assembly |
| CN115026989A (en) * | 2022-05-07 | 2022-09-09 | 深圳市东方亮彩精密技术有限公司 | New energy battery pack, preparation method and new energy equipment |
| CN116855075A (en) * | 2023-05-04 | 2023-10-10 | 国材(苏州)新材料科技有限公司 | Composite preparation method for improving usability of polyphenylene sulfide |
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