CN102208684B - Lithium ion battery and processing method thereof - Google Patents
Lithium ion battery and processing method thereof Download PDFInfo
- Publication number
- CN102208684B CN102208684B CN2011101090533A CN201110109053A CN102208684B CN 102208684 B CN102208684 B CN 102208684B CN 2011101090533 A CN2011101090533 A CN 2011101090533A CN 201110109053 A CN201110109053 A CN 201110109053A CN 102208684 B CN102208684 B CN 102208684B
- Authority
- CN
- China
- Prior art keywords
- housing
- processing method
- lithium ion
- ion battery
- injection hole
- 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.)
- Expired - Fee Related
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 16
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
- 239000003792 electrolyte Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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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- Secondary Cells (AREA)
- Primary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a lithium ion battery and a processing method thereof. The processing method comprises the following steps of: A, processing a case and pole pieces, and placing the pole pieces into the case; B, pouring electrolyte into the case by virtue of a filling hole; and C, smearing high-temperature aluminum liquid at the filling hole, forming an aluminum membrane at the filling hole under the action of surface tension of the aluminum liquid and then solidifying, and sealing the interior space of the case. The processing method disclosed by the invention is simple, and the lithium ion battery product has anti-explosion performance.
Description
Technical field
The invention belongs to the battery manufacture field, be specifically related to a kind of processing method of lithium ion battery and the lithium ion battery of being processed by the method.
Background technology
In the existing lithium ion battery course of processing, positive plate and negative plate are housed in housing, also need simultaneously to pour into electrolyte by liquid injection hole in housing, after electrolyte filling is completed, liquid injection hole need to be sealed, existing mode is to adopt the mode of the steel ball seal cover board of 1.35mm diameter, and there is following defective in this mode:
1, in the course of processing of battery, complex process, working (machining) efficiency is low;
2, the structure at liquid injection hole place is that the steel ball extruding seals, and when the housing internal pressure increased and reaches setting pressure, housing produced blast because pressure continues increase, and present aluminum-shell battery can not prevent from producing explosion phenomenon because of the increase of pressure.
Summary of the invention
The object of the invention is to overcome the defective of prior art, a kind of processing method of lithium ion battery and the lithium ion battery of being processed by the method are provided, processing technology of the present invention is simple, and product has explosion-proof performance.
Its technical scheme is as follows.
A kind of processing method of lithium ion battery, this processing method comprise the steps: A, processing housing and pole piece, and pole piece is loaded in housing; B, pour into electrolyte by liquid injection hole in housing; C, the aluminium liquid of high temperature is spread upon the liquid injection hole place, the surface tension effects by aluminium liquid forms aluminium film after coagulation at the liquid injection hole place, and with described enclosure interior space sealing.
The below describes the further technical scheme of the present invention.
In the step C, when smearing, the amount of the aluminium liquid that adopts is 0.1 gram to 1.0 gram at every turn.
In the step C, after smearing, the thickness of the described aluminium film of formation is 0.05 millimeter to 0.1 millimeter.
In the step C, the temperature of described aluminium liquid is 600 degrees centigrade to 700 degrees centigrade.
Adopt the lithium ion battery of preceding method processing, comprise housing, be provided with pole piece in housing, electrolyte also is housed in housing, be provided with liquid injection hole on housing, be provided with at the liquid injection hole place by high temperature aluminum liquid and solidify and the aluminium film that forms.
The thickness of described aluminium film is 0.05 millimeter to 0.1 millimeter.
The below describes advantage of the present invention or principle:
1, in cell processing course, after electrolyte filling is completed, can liquid injection hole can be sealed by the aluminium liquid of smearing high temperature, processing technology is very simple, has reduced production cost;
If 2 housing internal pressures rise and reach setting range, the aluminium film can break, and avoids enclosure interior pressure to continue to raise and causes blast, has improved the explosion-proof performance of battery.
Description of drawings
Fig. 1 is the outline drawing of the described lithium ion battery of the embodiment of the present invention;
Fig. 2 is in Fig. 1, the broken section enlarged drawing at liquid injection hole place;
Description of reference numerals:
1, housing, 2, liquid injection hole, 3, the aluminium film.
Embodiment
The below is elaborated to embodiments of the invention.
As shown in Figure 1 and Figure 2, a kind of lithium ion battery, comprise housing 1, be provided with pole piece in housing 1, electrolyte also is housed in housing 1, be provided with liquid injection hole 2 on housing 1, be provided with at liquid injection hole 2 places by high temperature aluminum liquid and solidify and the aluminium film 3 (thickness of aluminium film 3 is 0.05 millimeter to 0.1 millimeter) that forms.
In the present embodiment, the processing method of lithium ion battery comprises the steps: A, processing housing 1 and pole piece, and pole piece is loaded in housing 1; B, by liquid injection hole 2 to the interior perfusion electrolyte of housing 1; C, the aluminium liquid of high temperature is spread upon liquid injection hole 2 places, the surface tension effects by aluminium liquid forms aluminium film 3 after coagulations at liquid injection hole 2 places, and with described housing 1 inner space sealing.
Wherein, when smearing, the temperature of aluminium liquid is 650 degrees centigrade at every turn, and the amount of the aluminium liquid that adopts is 0.1 gram to 1.0 gram, and after smearing, the thickness of the described aluminium film 3 of formation is 0.05 millimeter to 0.1 millimeter.
The present embodiment has following advantage:
1, in cell processing course, after electrolyte filling is completed, can liquid injection hole 2 can be sealed by the aluminium liquid of smearing high temperature, processing technology is very simple, has reduced production cost;
If 2 housing 1 internal pressures rise and reach setting range, aluminium film 3 can break, and avoids housing 1 internal pressure to continue to raise and causes blast, has improved the explosion-proof performance of battery.
These are only specific embodiments of the invention, do not limit protection scope of the present invention with this; Any replacement and the improvement done on the basis of not violating the present invention's design all belong to protection scope of the present invention.
Claims (1)
1. the processing method of a lithium ion battery, is characterized in that, this processing method comprises the steps: A, processing housing and pole piece, and pole piece is loaded in housing; B, pour into electrolyte by liquid injection hole in housing; C, the aluminium liquid of high temperature is spread upon the liquid injection hole place, the surface tension effects by aluminium liquid forms aluminium film after coagulation at the liquid injection hole place, and with described enclosure interior space sealing; In the step C, when smearing, the amount of the aluminium liquid that adopts is 0.1 gram to 1.0 gram at every turn, and after smearing, the thickness of the described aluminium film of formation is 0.05 millimeter to 0.1 millimeter, and the temperature of described aluminium liquid is 600 degrees centigrade to 700 degrees centigrade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101090533A CN102208684B (en) | 2011-04-28 | 2011-04-28 | Lithium ion battery and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101090533A CN102208684B (en) | 2011-04-28 | 2011-04-28 | Lithium ion battery and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102208684A CN102208684A (en) | 2011-10-05 |
| CN102208684B true CN102208684B (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101090533A Expired - Fee Related CN102208684B (en) | 2011-04-28 | 2011-04-28 | Lithium ion battery and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102208684B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701079Y (en) * | 2004-04-30 | 2005-05-18 | 肇庆市风华锂电池有限公司 | Battery sealing cover plate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003187773A (en) * | 2001-12-17 | 2003-07-04 | Sony Corp | Sealed battery and welding method |
| JP2003346742A (en) * | 2002-05-24 | 2003-12-05 | Japan Storage Battery Co Ltd | Square sealed secondary battery |
-
2011
- 2011-04-28 CN CN2011101090533A patent/CN102208684B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701079Y (en) * | 2004-04-30 | 2005-05-18 | 肇庆市风华锂电池有限公司 | Battery sealing cover plate |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2003-187773A 2003.07.04 |
| JP特开2003-346742A 2003.12.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102208684A (en) | 2011-10-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG XINLINGJIA NEW ENERGY CO., LTD. Free format text: FORMER NAME: HEYUAN NEW LINJIA ELECTROACOUSTIC CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 517000, Guangdong, Heyuan hi tech Development Zone, seven South of the road, west of Binjiang Avenue Patentee after: GUANGDONG NEW LINGJIA NEW ENERGY INCORPORATED Co. Address before: 517000, Guangdong, Heyuan hi tech Development Zone, seven South of the road, west of Binjiang Avenue Patentee before: HEYUAN NEW LINGJIA ELECTROACOUSTIC Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 |