CN102820488A - Formation encapsulation method for lithium ion battery - Google Patents
Formation encapsulation method for lithium ion battery Download PDFInfo
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- CN102820488A CN102820488A CN201210259627XA CN201210259627A CN102820488A CN 102820488 A CN102820488 A CN 102820488A CN 201210259627X A CN201210259627X A CN 201210259627XA CN 201210259627 A CN201210259627 A CN 201210259627A CN 102820488 A CN102820488 A CN 102820488A
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- lithium ion
- ion battery
- battery
- liquid injection
- spherical object
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a formation encapsulation method for a lithium ion battery. The method comprises the following steps: 1, sealing a liquid injection opening of the lithium ion battery by using an electrochemically inert globular member so as to allow the lithium ion battery to be completely sealed; 2, carrying out formation on the lithium ion battery; 3, pushing the globular member into the lithium ion battery and pumping out gas in the lithium ion battery; and 4, sealing the liquid injection opening of the lithium ion battery. According to the formation encapsulation method for the lithium ion battery in the invention, since the electrochemically inert globular member is used to seal the liquid injection opening of the lithium ion battery before formation, external water is prevented from entering into the battery to react with electrolyte; meanwhile, after formation of the lithium ion battery, the globular member is pushed into the lithium ion battery and gas in the lithium ion battery is pumped out, so the phenomenon of swelling of the lithium ion battery is prevented, thereby finally guaranteeing the performance of the lithium ion battery.
Description
Technical field
The present invention relates to battery manufacturing technology field, especially relate to a kind of method for packing that changes into of lithium ion battery.
Background technology
Lithium ion battery has two kinds at present: polymer Soft Roll lithium ion battery and aluminum hull lithium ion battery.For the aluminum hull lithium ion battery, because its electrolyte very easily reacts with water, therefore the moisture Control to battery requires very strict in manufacture process.In the prior art, the change into packaging process flow process of most aluminum-shell batteries after injecting electrolyte is:
The mode of A, employing cover cushion rubber is sealed lithium ion battery temporarily;
B, lithium ion battery is changed into;
C, unload cushion rubber and lithium ion battery is bled;
D, lithium ion battery is played steel ball seal.
This changing in the packaging process; Because electric core adopts the sealing effect of cushion rubber mode not good when changing into, can't realize sealing fully to battery, thereby cause the moisture in the environment still can get into inside battery; With the electrolyte reaction, finally battery performance is caused harmful effect.If after injecting electrolyte, directly play steel ball battery is sealed fully, and then battery is changed into, the gas that battery produces when then changing into can't be discharged from, and causes the battery bulging, finally still battery performance is caused harmful effect.
Summary of the invention
Main purpose of the present invention is to provide a kind of method for packing that changes into of lithium ion battery, the sealing when realization can guarantee that battery changes into, can change into the gas of generation changing into the back venting that finishes again, thereby guarantees battery performance.
The present invention proposes a kind of method for packing that changes into of lithium ion battery, comprises step:
Step 1, employing have the liquid injection port of the spherical object sealing lithium ion battery of electrochemistry inertia, and lithium ion battery is sealed fully;
Step 2, lithium ion battery is changed into processing;
Step 3, said spherical object is pushed inside lithium ion cell, and extract inside lithium ion cell gas;
Step 4, the liquid injection port of lithium ion battery is sealed.
Preferably, said spherical object is the spherical object of plastics with electrochemistry inertia.
Preferably, said spherical object is spherical shape object or oval spherical object.
Preferably, said step 4 is specially: adopt the liquid injection port of steel ball sealing lithium ion battery, realize the sealing fully of said liquid injection port.
The lithium ion battery that the present invention proposes change into method for packing owing to before changing into, adopt the liquid injection port of spherical object sealing lithium ion battery, prevented that extraneous moisture from getting into inside battery and reacting with electrolyte with electrochemistry inertia; After lithium ion battery changes into, after spherical object is pushed inside battery, extract the mode of inside battery gas simultaneously, prevented the intumescent generation of lithium ion battery, thereby finally guaranteed the performance of lithium ion battery.
Description of drawings
Fig. 1 is the flow chart that changes into method for packing of lithium ion battery of the present invention;
Fig. 2 is of the present invention through the lithium ion battery status architecture sketch map after the spherical object sealing liquid injection port;
Fig. 3 is the status architecture sketch map that spherical object is pushed lithium ion battery behind the inside battery of the present invention;
Fig. 4 is that of the present invention that spherical object is pushed lithium ion is inner and through the lithium ion battery status architecture sketch map after the steel ball sealing liquid injection port.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Referring to Fig. 1, Fig. 1 is the flow chart that changes into method for packing of lithium ion battery of the present invention.The lithium ion battery that present embodiment proposes change into method for packing, specifically comprise:
Step S101, employing have the liquid injection port of the spherical object 104 sealing lithium ion batteries of electrochemistry inertia, make lithium ion battery be in complete sealing state.
Referring to Fig. 2, Fig. 2 is of the present invention through the lithium ion battery status architecture sketch map after the spherical object 104 sealing liquid injection port.Said lithium ion battery comprises aluminum hull housing 100, positive pole ear 101, negative lug 102, electrolyte 103.Wherein the liquid injection port of lithium ion battery seals through spherical object 104.
Sealing lithium ion battery among this step S101 fully, is in order to make inside battery and external environment isolated, to avoid the moisture in the external environment condition to get into inside battery, reacts with the electrolyte of inside battery, prevents that the lithium ion battery performance is affected.Said spherical object 104 with electrochemistry inertia is the spherical object 104 of plastics; Said plastics can be polypropylene (PP), polyethylene (PE), PET (PET), polystyrene plastic materials such as (PS); These plastic materials have the electrochemistry inertia; Promptly generally can not react with the electrolyte of inside battery; Simultaneously plastic material can strain, adopts the liquid injection port of spherical object 104 sealed cells of plastic material, can realize the sealing fully of lithium ion battery.Said spherical object 104 is spherical shape object 104 or oval spherical object 104.
Step S102, lithium ion battery is changed into processing.
Among this step S102,, so do not have moisture in the formation process and get into inside battery and electrolyte from the outside and react, thereby guaranteed the performance of lithium ion battery because lithium ion battery is in complete sealing state.
Step S103, said spherical object 104 is pushed inside lithium ion cell, and extract inside lithium ion cell gas.
Referring to Fig. 3, to be the present invention push the lithium ion battery status architecture sketch map behind the inside battery with spherical object 104 to Fig. 3.Said lithium ion battery comprises aluminum hull housing 100, positive pole ear 101, negative lug 102, electrolyte 103.Wherein spherical object 104 pushes inside battery by the liquid injection port place.
In the present embodiment, because the lithium ion battery formation process is in sealing state, so a large amount of gases that produce in the formation process are sealed in inside battery.This step S103 through spherical object 104 is pushed inside lithium ion cell, realizes removing the sealing state of battery after changing into completion, battery is bled from liquid injection port through air-extractor then, extracts all gas of inside battery.Spherical object 104 owing to plastic material among this step S103 can produce strain; Therefore can be by external tool as applying thrust to it to inside battery with hard chromium; Spherical object 104 stressed generation deformation are finally passed liquid injection port and are got into inside battery.Because said spherical object 104 has the electrochemistry inertia, therefore not can with the electrolyte generation chemical reaction of inside battery.
Step S104, the liquid injection port of lithium ion battery is sealed.
This step S104 carries out after extracting the inside battery all gas.This step S104 detailed process is following: the liquid injection port that adopts steel ball sealing lithium ion battery.
Referring to Fig. 4, Fig. 4 is that the present invention pushes the inner lithium ion battery status architecture sketch map that also passes through after steel ball seals liquid injection port of lithium ion with spherical object 104.Said lithium ion battery comprises aluminum hull housing 100, positive pole ear 101, negative lug 102, electrolyte 103.Wherein spherical object 1044 is in inside battery, and liquid injection port seals through steel ball 105.
The lithium ion battery that present embodiment provided change into method for packing owing to before changing into, adopt the liquid injection port of spherical object 104 sealing lithium ion batteries, prevented that extraneous moisture from getting into inside battery and reacting with electrolyte with electrochemistry inertia; After lithium ion battery changes into, after spherical object 104 is pushed inside battery, extract the mode of inside battery gas simultaneously, prevented the intumescent generation of lithium ion battery, thereby finally guaranteed the performance of lithium ion battery.
Should be understood that; More than be merely the preferred embodiments of the present invention; Can not therefore limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (4)
- A lithium ion battery change into method for packing, it is characterized in that, comprising:Step 1, employing have the liquid injection port of the spherical object sealing lithium ion battery of electrochemistry inertia, and lithium ion battery is sealed fully;Step 2, lithium ion battery is changed into processing;Step 3, said spherical object is pushed inside lithium ion cell, and extract inside lithium ion cell gas;Step 4, the liquid injection port of lithium ion battery is sealed.
- 2. the method for packing that changes into according to claim 1 is characterized in that, said spherical object is the spherical object of plastics with electrochemistry inertia.
- 3. the method for packing that changes into according to claim 1 and 2 is characterized in that, said spherical object is spherical shape object or oval spherical object.
- 4. the method for packing that changes into according to claim 1 is characterized in that said step 4 is specially: adopt the liquid injection port of steel ball sealing lithium ion battery, realize the sealing fully of said liquid injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259627XA CN102820488A (en) | 2012-07-25 | 2012-07-25 | Formation encapsulation method for lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259627XA CN102820488A (en) | 2012-07-25 | 2012-07-25 | Formation encapsulation method for lithium ion battery |
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| CN102820488A true CN102820488A (en) | 2012-12-12 |
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| CN201210259627XA Pending CN102820488A (en) | 2012-07-25 | 2012-07-25 | Formation encapsulation method for lithium ion battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167566A (en) * | 2014-08-06 | 2014-11-26 | 苏州星恒电源有限公司 | Sealing forming method of lithium ion battery |
| CN106374135A (en) * | 2016-11-24 | 2017-02-01 | 中国科学院宁波材料技术与工程研究所 | Battery core sealing method and tooling device for sealing battery core |
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| CN2578995Y (en) * | 2002-09-19 | 2003-10-08 | 深圳华粤宝电池有限公司 | Cylindrical lithium ionic battery |
| CN1983673A (en) * | 2006-03-28 | 2007-06-20 | 惠州亿纬电源科技有限公司 | Disposable lithium-battery |
| CN101552358A (en) * | 2009-05-14 | 2009-10-07 | 林道勇 | Production method and encapsulating shell of lithium ion battery |
| CN102064293A (en) * | 2010-12-31 | 2011-05-18 | 无锡富洪科技有限公司 | Cover plate structure of battery |
| CN102376983A (en) * | 2010-08-24 | 2012-03-14 | 中国电子科技集团公司第十八研究所 | Lithium ion storage battery formation method |
| CN102386434A (en) * | 2010-09-01 | 2012-03-21 | 深圳市海太阳实业有限公司 | Cell formation and packaging method |
-
2012
- 2012-07-25 CN CN201210259627XA patent/CN102820488A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578995Y (en) * | 2002-09-19 | 2003-10-08 | 深圳华粤宝电池有限公司 | Cylindrical lithium ionic battery |
| CN1983673A (en) * | 2006-03-28 | 2007-06-20 | 惠州亿纬电源科技有限公司 | Disposable lithium-battery |
| CN101552358A (en) * | 2009-05-14 | 2009-10-07 | 林道勇 | Production method and encapsulating shell of lithium ion battery |
| CN102376983A (en) * | 2010-08-24 | 2012-03-14 | 中国电子科技集团公司第十八研究所 | Lithium ion storage battery formation method |
| CN102386434A (en) * | 2010-09-01 | 2012-03-21 | 深圳市海太阳实业有限公司 | Cell formation and packaging method |
| CN102064293A (en) * | 2010-12-31 | 2011-05-18 | 无锡富洪科技有限公司 | Cover plate structure of battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167566A (en) * | 2014-08-06 | 2014-11-26 | 苏州星恒电源有限公司 | Sealing forming method of lithium ion battery |
| CN104167566B (en) * | 2014-08-06 | 2017-03-15 | 星恒电源股份有限公司 | A kind of sealing chemical synthesizing method of lithium ion battery |
| CN106374135A (en) * | 2016-11-24 | 2017-02-01 | 中国科学院宁波材料技术与工程研究所 | Battery core sealing method and tooling device for sealing battery core |
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Application publication date: 20121212 |