CN203553288U - Square aluminum shell lithium battery negative-pressure formation auxiliary device - Google Patents
Square aluminum shell lithium battery negative-pressure formation auxiliary device Download PDFInfo
- Publication number
- CN203553288U CN203553288U CN201320707803.1U CN201320707803U CN203553288U CN 203553288 U CN203553288 U CN 203553288U CN 201320707803 U CN201320707803 U CN 201320707803U CN 203553288 U CN203553288 U CN 203553288U
- Authority
- CN
- China
- Prior art keywords
- battery
- lithium battery
- square aluminum
- shell lithium
- negative pressure
- 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 - Lifetime
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 title abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052782 aluminium Inorganic materials 0.000 title abstract 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 239000004743 Polypropylene Substances 0.000 abstract 2
- -1 polypropylene Polymers 0.000 abstract 2
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 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)
- Hybrid Cells (AREA)
- Primary Cells (AREA)
Abstract
The utility model discloses a square aluminum shell lithium battery negative-pressure formation auxiliary device. The square aluminum shell lithium battery negative-pressure formation auxiliary device comprises a lifting platform and a vacuum system, wherein the lifting platform is provided with positive and negative pole connecting columns for connecting battery positive and negative pole columns and a vacuum suction pipe connected with the vacuum system; the tail end of the vacuum suction pipe is connected with a flexible suction disc which is made of PP (polypropylene) or PTFE (polytetrafluoroethylene); the lifting platform comprises a handle, a vertical plate and a cross plate; the lower end of the vertical plate is connected with one side of the cross plate; the handle is connected with the vertical plate; the vacuum system has the vacuum degree of -0.06 to -0.08MPa. According to the utility model, a battery is vacuumized internally in the formation process, so that negative pressure forms in the battery so as to prevent electrolyte from spraying, and the surface of the battery and a formation fixture are protected effectively; meanwhile, the negative pressure mode enables pole pieces in the battery to be in tight contact with a diaphragm, so that the formation is adequate, and performances of the battery are improved.
Description
Technical field
The utility model relates to a kind of square aluminum-shell lithium battery negative pressure and changes into servicing unit.
Background technology
In the series of process flow process of producing at lithium battery, changing into is one of wherein important link, while changing into, electrolyte can form one deck passivation layer on battery cathode surface, be solid electrolyte interface film (SEI film), the quality of SEI film directly has influence on cycle life, stability, self-discharge performance and the security performance of battery.
At present, most aluminum-shell lithium battery manufacturer adopts the mode of normal pressure open formation, because the electrochemical reaction in formation process can produce more gas, when gas is discharged, follows and takes part electrolyte out of, thereby pollute aluminum-shell battery surface and formation device; Separately there are some gases to cause aluminum-shell battery thickness to increase owing to not discharging in time, cause the positive and negative plate of inside battery to contact with barrier film not tight, affected formation effect.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of square aluminum-shell lithium battery negative pressure and changes into servicing unit.This apparatus structure is simple, easy to operate, can prevent the electrolyte corrosion cell surface and the formation device that spray in battery open formation process, and in addition, negative pressure changes into that can to make battery pole piece contact with barrier film tightr, and formation process is more abundant.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: square aluminum-shell lithium battery negative pressure changes into servicing unit, comprises lifting platform and vacuum system; Lifting platform be provided with for connect the both positive and negative polarity joint pin of battery plus-negative plate post with for being connected the vaccum suction pipe of vacuum system, described vaccum suction pipe end is provided with soft sucker.
As preferably, the lower end of both positive and negative polarity joint pin is provided with the circular hole of indent, and Circularhole diameter is than the large 0.2～0.4mm of battery electrode column diameter, the little 0.5～1mm of height of the indent depth ratio battery electrode column of circular hole.
As preferably, the diameter of soft sucker is than the large 4～6mm of battery liquid-filling bore dia, and soft sucker adopts PP or PTFE material to make.
As preferably, lifting platform comprises handle, riser and transverse slat; Riser lower end is connected with transverse slat one side; Handle is connected with riser.
As preferably, the vacuum degree of vacuum system is-0.06～0.08MPa.。
The beneficial effects of the utility model are:
The mode that employing vacuumizes inside battery in formation process, makes inside battery form negative pressure, prevents electrolyte ejection, effectively protects battery surface and battery formation clamp; Simultaneously negative pressure mode makes inside battery pole piece and barrier film close contact, change into more abundant, raising battery performance; Unique contact design and the introducing of the soft sucker of the mouth of pipe make device and the easier contraposition of battery, contact more firm, better tightness.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation that the square aluminum-shell lithium battery negative pressure of the utility model changes into servicing unit embodiment.
In figure, 1-riser, 2-handle, 3-transverse slat, 4-both positive and negative polarity joint pin, 5-vaccum suction pipe, the soft sucker of 6-, 7-indent circular hole, 8-battery plus-negative plate post, 9-liquid injection hole.
Embodiment
A kind of servicing unit changing into for square aluminum-shell lithium battery negative pressure of Fig. 1, comprise the riser 1 that connects formation cabinet, riser 1 side is provided with one handle 2, riser 1 below is connected with the transverse slat 3 of a level, both positive and negative polarity joint pin 4 and vaccum suction pipe 5 are installed on transverse slat 3, the soft sucker 6 of hollow is equipped with in vaccum suction pipe 5 lower ends, and vaccum suction pipe 5 tops are connected to vacuum system.
During work, by pulling handle 2 to control transverse slat 3, decline, guarantee that the positive and negative terminals 8 of aluminum-shell lithium battery can accurately insert the circular hole 7 of both positive and negative polarity joint pin 4 lower end indents, simultaneously soft sucker 6 is completely on clad battery after liquid injection hole 9, release handle 2, start formation cabinet power supply, start to change into, open vacuum system simultaneously, to inside battery, vacuumize, like this, the gas producing in formation process can be pumped timely, in process, do not have electrolyte ejection and pollute battery surface and formation device, pole piece and the barrier film close contact of while inside battery, guaranteed to change into quality.
Change into after end, close formation cabinet power supply and vacuum system, driving handle 2 is controlled transverse slat 3 and is risen, and the positive and negative terminals 8 of battery is separated with the circular hole 7 of both positive and negative polarity joint pin 4 lower end indents, simultaneously soft sucker 6 is decontroled battery liquid-filling hole 9, takes off battery and enters next process.
Above-described the utility model execution mode, does not form the restriction to the utility model protection range.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection range of the present utility model.
Claims (5)
1. square aluminum-shell lithium battery negative pressure changes into servicing unit, it is characterized in that: comprise lifting platform and vacuum system; Described lifting platform be provided with for connect the both positive and negative polarity joint pin of battery plus-negative plate post with for being connected the vaccum suction pipe of vacuum system, described vaccum suction pipe end is provided with soft sucker.
2. square aluminum-shell lithium battery negative pressure according to claim 1 changes into servicing unit, it is characterized in that: the lower end of described both positive and negative polarity joint pin is provided with the circular hole of indent, Circularhole diameter is than the large 0.2～0.4mm of battery electrode column diameter, the little 0.5～1mm of height of the indent depth ratio battery electrode column of circular hole.
3. square aluminum-shell lithium battery negative pressure according to claim 1 changes into servicing unit, it is characterized in that: the diameter of described soft sucker is than the large 4～6mm of battery liquid-filling bore dia, and soft sucker adopts PP or PTFE material to make.
4. square aluminum-shell lithium battery negative pressure according to claim 1 changes into servicing unit, it is characterized in that: described lifting platform comprises handle, riser and transverse slat; Described riser lower end is connected with transverse slat one side; Described handle is connected with riser.
5. according to claim 1-4, the square aluminum-shell lithium battery negative pressure described in any one changes into servicing unit, it is characterized in that: the vacuum degree of described vacuum system is-0.06～-0.08MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320707803.1U CN203553288U (en) | 2013-11-08 | 2013-11-08 | Square aluminum shell lithium battery negative-pressure formation auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320707803.1U CN203553288U (en) | 2013-11-08 | 2013-11-08 | Square aluminum shell lithium battery negative-pressure formation auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553288U true CN203553288U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320707803.1U Expired - Lifetime CN203553288U (en) | 2013-11-08 | 2013-11-08 | Square aluminum shell lithium battery negative-pressure formation auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553288U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868066A (en) * | 2015-04-21 | 2015-08-26 | 合肥国轩高科动力能源股份公司 | Cover plate of square power battery and matched formation charging device |
| CN108598578A (en) * | 2018-02-26 | 2018-09-28 | 合肥国轩高科动力能源有限公司 | Lithium ion battery formation liquid-spraying prevention device |
| CN109449495A (en) * | 2018-11-09 | 2019-03-08 | 浙江杭可科技股份有限公司 | Lithium battery cavity negative pressure formation method and device |
| CN109752661A (en) * | 2019-01-29 | 2019-05-14 | 深圳鼎阳智能电气有限公司 | A kind of formation cabinet for quadrate lithium battery test |
-
2013
- 2013-11-08 CN CN201320707803.1U patent/CN203553288U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868066A (en) * | 2015-04-21 | 2015-08-26 | 合肥国轩高科动力能源股份公司 | Cover plate of square power battery and matched formation charging device |
| CN108598578A (en) * | 2018-02-26 | 2018-09-28 | 合肥国轩高科动力能源有限公司 | Lithium ion battery formation liquid-spraying prevention device |
| CN109449495A (en) * | 2018-11-09 | 2019-03-08 | 浙江杭可科技股份有限公司 | Lithium battery cavity negative pressure formation method and device |
| CN109752661A (en) * | 2019-01-29 | 2019-05-14 | 深圳鼎阳智能电气有限公司 | A kind of formation cabinet for quadrate lithium battery test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Patentee after: Gotion High-tech Co., Ltd. Address before: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7 Patentee before: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |