CN103102594A - Composite material and lithium ion battery plastic shell made of the same - Google Patents
Composite material and lithium ion battery plastic shell made of the same Download PDFInfo
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- CN103102594A CN103102594A CN2013100612094A CN201310061209A CN103102594A CN 103102594 A CN103102594 A CN 103102594A CN 2013100612094 A CN2013100612094 A CN 2013100612094A CN 201310061209 A CN201310061209 A CN 201310061209A CN 103102594 A CN103102594 A CN 103102594A
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- composite material
- matrix material
- polypropylene
- lithium ion
- ion battery
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- 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
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- Sealing Battery Cases Or Jackets (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Relating to the field of battery manufacturing, the invention discloses a composite material and a lithium ion battery plastic shell made of the composite material. The composite material is prepared by mixing the following components by weight: 80%-90% of polypropylene PP; 7%-15% of high density polyethylene HDPE; and 3%-5% of a lubricant. The preparation method of the packaging composite material consists of: (1) mixing and stirring the polypropylene, the high density polyethylene and the lubricant to a uniform state; and (2) placing the uniformly stirred mixture into a screw extruder to perform melt mixing for 2-4min, and controlling the screw temperature at 145DEG C-210DEG C and the screw rotation speed at 200-300rpm. The composite material prepared by the method and an acid and alkali resistant color masterbatch are subjected to blending and baking in proportion, and then subjected to injection molding through an injection mold. The lithium ion battery plastic shell made of the composite material provided in the invention has obdurability and shock resistance.
Description
Technical field
The present invention relates to the battery manufacture field, the lithium ion battery plastic casing that relates in particular to matrix material and made by this matrix material.
Background technology
For lithium ion battery, the seal degree of battery directly affects every use properties of battery.And in the process that various positions seal to lithium ion battery, the sealing of terminal stud place battery cover board is the most key; The sealing of existing lithium ion battery pairs of posts place battery cover board is generally to adopt first to get a terminal stud hole on battery cover board, and then the gasket that polypropylene PP or polythene PE material are made respectively is set in the above and below in hole.But this sealed structure is too simple, very easily occurs the not good enough problem of sealing in commercial process, and then can cause the use properties of battery to reduce.
Chinese patent application number is 201110459943.7, patent composite plastic by name and with lithium ion battery and series of cells and the assemble method thereof of its manufacturing, in this patent, there are wretched insufficiency in composite reinforcing filler and composite heat-conducting filler aspect anti-electrolytic solution corrosion, in electrolytic solution, hydrofluoric acid can react with matrix material, causes battery case to lose efficacy.The membership that adds of other outer fiber makes inside battery and external capillary conducting, makes the little seepage of electrolytic solution, and micro-moisture enters inside battery, produces chemical reaction.
Summary of the invention
The lithium ion battery plastic casing that the objective of the invention is to provide for deficiency of the prior art matrix material and made by this matrix material, the lithium ion battery plastic casing that this matrix material is made has obdurability and shock resistance.
Technical scheme of the present invention is as follows:
A kind of matrix material is mixed with by following compositions in weight percentage,
Polypropylene PP 80%～90%;
High density polyethylene 7%～15%;
Lubricant 3%～5%.
Above-mentioned polypropylene is the isotactic homo-polypropylene, and its melt flow rate (MFR) is 3～26g/10min, and isotactic index is 98.5～99.5%.
Above-mentioned lubricant is one or more the mixture in calcium stearate, Aluminate, titanic acid ester and paraffin.
Above-mentioned composite manufacture method, step is as follows:
Polypropylene, 7%～15% high density polyethylene(HDPE) and 3%～5% the mix lubricant that (1) will account for gross weight 80%～90% are stirred to evenly;
(2) said mixture that stirs is fed into screw extrusion press and carries out melting mixing 2～4min, extruder temperature is 145 ℃～210 ℃, and screw speed is 200～300 rev/mins.
Further, the lithium ion battery plastic casing that adopts above-mentioned matrix material to make, its making step is as follows:
Matrix material and acidproof alkaline color mother according to above-mentioned method preparation carry out blend, baking in proportion, then by the injection mold injection moulding.Adopt horizontal mixer at the uniform velocity to stir 5～10min, the look mother is dispersed in raw material; Before hot injection moulding, the raw material that mixes was toasted 2 hours under 75 ℃;
Hot injecting condition is, injection temperature: chew: 210 ℃, and one section: 220 ℃, two sections: 210 ℃, three sections: 200 ℃; Pressure is 93KG/cm
2, the cycle is 100 seconds/beer.
Beneficial effect of the present invention: the lithium ion battery plastic casing of being made by matrix material of the present invention has obdurability and shock resistance.
Embodiment
For the present invention is described, now for following embodiment, but embodiment does not limit protection scope of the present invention.
Embodiment 1
The composite manufacture method: step is as follows,
(1) 80 parts of polypropylene of parts by weight, 15 parts of high density polyethylene(HDPE)s and 5 parts of mix lubricant are stirred to evenly;
(2) said mixture that stirs is fed into screw extrusion press and carries out melting mixing 2～4min, extruder temperature is 145 ℃～210 ℃, and screw speed is 200～300 rev/mins.
The lithium ion battery plastic casing that matrix material is made, its making step is as follows:
Matrix material and the acidproof alkaline color mother of preparation carry out blend, baking in proportion according to the method described above, then by the injection mold injection moulding.Adopt horizontal mixer at the uniform velocity to stir 5～10min, the look mother is dispersed in raw material; Before hot injection moulding, the raw material that mixes was toasted 2 hours under 75 ℃;
Hot injecting condition is, injection temperature: chew: 210 ℃, and one section: 220 ℃, two sections: 210 ℃, three sections: 200 ℃; Pressure is 93KG/cm
2, the cycle is 100 seconds/beer.
Embodiment 2
The composite manufacture method: step is as follows,
(1) 86 parts of polypropylene of parts by weight, 10 parts of high density polyethylene(HDPE)s and 4 parts of mix lubricant are stirred to evenly;
(2) said mixture that stirs is fed into screw extrusion press and carries out melting mixing 2～4min, extruder temperature is 145 ℃～210 ℃, and screw speed is 200～300 rev/mins.
The lithium ion battery plastic casing that matrix material is made, its making step is as follows:
Matrix material and acidproof alkaline color mother according to above-mentioned method preparation carry out blend, baking in proportion, then by the injection mold injection moulding.Adopt horizontal mixer at the uniform velocity to stir 5～10min, the look mother is dispersed in raw material; Before hot injection moulding, the raw material that mixes was toasted 2 hours under 75 ℃;
Hot injecting condition is, injection temperature: chew: 210 ℃, and one section: 220 ℃, two sections: 210 ℃, three sections: 200 ℃; Pressure is 93KG/cm
2, the cycle is 100 seconds/beer.
Embodiment 3
The composite manufacture method: step is as follows,
(1) 90 parts of polypropylene of parts by weight, 7 parts of high density polyethylene(HDPE)s and 3 parts of mix lubricant are stirred to evenly;
(2) said mixture that stirs is fed into screw extrusion press and carries out melting mixing 2～4min, extruder temperature is 145 ℃～210 ℃, and screw speed is 200～300 rev/mins.
The lithium ion battery plastic casing that matrix material is made, its making step is as follows:
Matrix material and the acidproof alkaline color mother of preparation carry out blend, baking in proportion in accordance with the method for claim 4, then by the injection mold injection moulding.Adopt horizontal mixer at the uniform velocity to stir 5～10min, the look mother is dispersed in raw material; Before hot injection moulding, the raw material that mixes was toasted 2 hours under 75 ℃;
Hot injecting condition is, injection temperature: chew: 210 ℃, and one section: 220 ℃, two sections: 210 ℃, three sections: 200 ℃; Pressure is 93KG/cm
2, the cycle is 100 seconds/beer.
Table 1: the performance test results of the lithium ion battery plastic casing that each embodiment matrix material is made
As shown in Table 1, the lithium ion battery plastic casing of matrix material making of the present invention has obdurability and shock resistance.
Claims (6)
1. matrix material is characterized in that: is mixed with by following compositions in weight percentage,
Polypropylene PP 80%～90%;
High density polyethylene 7%～15%;
Lubricant 3%～5%.
2. matrix material as claimed in claim 1, it is characterized in that: described polypropylene is the isotactic homo-polypropylene, and its melt flow rate (MFR) is 3～26g/10min, and isotactic index is 98.5～99.5%.
3. matrix material as claimed in claim 1 is characterized in that: described lubricant is one or more the mixture in calcium stearate, Aluminate, titanic acid ester and paraffin.
4. composite manufacture method as claimed in claim 1, it is characterized in that: step is as follows,
Polypropylene, 7%～15% high density polyethylene(HDPE) and 3%～5% the mix lubricant that (1) will account for gross weight 80%～90% are stirred to evenly;
(2) said mixture that stirs is fed into screw extrusion press and carries out melting mixing 2～4min, extruder temperature is 145 ℃～210 ℃, and screw speed is 200～300 rev/mins.
5. the lithium ion battery plastic casing that adopts matrix material as claimed in claim 1 to make, its making step is as follows:
Matrix material and the acidproof alkaline color mother of preparation carry out blend, baking in proportion in accordance with the method for claim 4, then by the injection mold injection moulding.
6. adopt horizontal mixer at the uniform velocity to stir 5～10min, the look mother is dispersed in raw material; Before hot injection moulding, the raw material that mixes was toasted 2 hours under 75 ℃;
Hot injecting condition is, injection temperature: chew: 210 ℃, and one section: 220 ℃, two sections: 210 ℃, three sections: 200 ℃; Pressure is 93KG/cm
2, the cycle is 100 seconds/beer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061209.4A CN103102594B (en) | 2013-02-27 | 2013-02-27 | Composite and the lithium ion battery cabinet made by this composite thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061209.4A CN103102594B (en) | 2013-02-27 | 2013-02-27 | Composite and the lithium ion battery cabinet made by this composite thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103102594A true CN103102594A (en) | 2013-05-15 |
| CN103102594B CN103102594B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061209.4A Expired - Fee Related CN103102594B (en) | 2013-02-27 | 2013-02-27 | Composite and the lithium ion battery cabinet made by this composite thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016095225A1 (en) * | 2014-12-19 | 2016-06-23 | Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. | Superior stress whitening performance for battery cases |
| CN107732034A (en) * | 2017-09-27 | 2018-02-23 | 芜湖华力五星电源科技有限公司 | A kind of sealed lead acid storage battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320789A (en) * | 2008-07-07 | 2008-12-10 | 风帆股份有限公司 | High ductility accumulator housing and preparation method |
| CN201402821Y (en) * | 2009-03-21 | 2010-02-10 | 惠州亿纬锂能股份有限公司 | 9V square lithium battery package shell |
-
2013
- 2013-02-27 CN CN201310061209.4A patent/CN103102594B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320789A (en) * | 2008-07-07 | 2008-12-10 | 风帆股份有限公司 | High ductility accumulator housing and preparation method |
| CN201402821Y (en) * | 2009-03-21 | 2010-02-10 | 惠州亿纬锂能股份有限公司 | 9V square lithium battery package shell |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016095225A1 (en) * | 2014-12-19 | 2016-06-23 | Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. | Superior stress whitening performance for battery cases |
| US10011708B2 (en) | 2014-12-19 | 2018-07-03 | Abu Dhabi Polymers Co. Ltd (Borouge) Llc. | Superior stress whitening performance for battery cases |
| CN107732034A (en) * | 2017-09-27 | 2018-02-23 | 芜湖华力五星电源科技有限公司 | A kind of sealed lead acid storage battery |
| CN107732034B (en) * | 2017-09-27 | 2020-10-27 | 浙江镭众科技有限公司 | Sealed lead-acid storage battery |
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| Publication number | Publication date |
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| CN103102594B (en) | 2016-06-29 |
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Granted publication date: 20160629 Termination date: 20180227 |
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