CN203553288U - Square aluminum shell lithium battery negative-pressure formation auxiliary device - Google Patents

Square aluminum shell lithium battery negative-pressure formation auxiliary device Download PDF

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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
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China
Prior art keywords
battery
lithium battery
square aluminum
shell lithium
negative pressure
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Active
Application number
CN201320707803.1U
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Chinese (zh)
Inventor
陈默
韩成祥
谷明海
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Hefei Gotion High Tech Power Energy Co Ltd
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Hefei Guoxuan High Tech Power Energy Co Ltd
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Priority to CN201320707803.1U priority Critical patent/CN203553288U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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

Square aluminum-shell lithium battery negative pressure changes into servicing unit
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.
CN201320707803.1U 2013-11-08 2013-11-08 Square aluminum shell lithium battery negative-pressure formation auxiliary device Active CN203553288U (en)

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

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CN201320707803.1U Active CN203553288U (en) 2013-11-08 2013-11-08 Square aluminum shell lithium battery negative-pressure formation auxiliary device

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CN (1) CN203553288U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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 A kind of anti-liquid-jet device of lithium ion battery chemical conversion

Cited By (2)

* Cited by examiner, † Cited by third party
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 A kind of anti-liquid-jet device of lithium ion battery chemical conversion

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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: Hefei Guoxuan High-Tech Power Energy 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.