CN102569898A - Lithium-series secondary battery sealing and forming device and process - Google Patents
Lithium-series secondary battery sealing and forming device and process Download PDFInfo
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- CN102569898A CN102569898A CN2011103628729A CN201110362872A CN102569898A CN 102569898 A CN102569898 A CN 102569898A CN 2011103628729 A CN2011103628729 A CN 2011103628729A CN 201110362872 A CN201110362872 A CN 201110362872A CN 102569898 A CN102569898 A CN 102569898A
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- battery
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- secondary 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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- 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 relates to a lithium-series secondary battery sealing and forming device and a process. The lithium-series secondary battery sealing and forming device comprises a main body, a plug column, an adjusting cap, a sealing ring and a spring, wherein the lithium-series secondary battery sealing and forming process adopts the following steps: screw caps for fastening the sealing and forming device are welded on the upper cover plate of the battery in advance, the upper cover plate and a steel casing mounted in the battery core are welded together, after electrolyte is injected into a drying room from a prepared hole for the installation of the device, the lithium-series secondary battery sealing and forming device is mounted on the upper cover plate. The sealing to the entire battery can be finished completely, the battery, after being formed, is placed into a vacuum tank for vacuum-pumping operation, the interior of the battery is enabled to be under a vacuum state, then the vacuum tank is opened, and then sealing and forming are finished. Due to the adoption of the invention, moisture in the battery can be reduced, the performance of the lithium-series is improved, the cycle life is prolonged, and the explosive hazards caused by air-blowing are avoided.
Description
Technical field
The present invention relates to the lithium battery field, refer more particularly to the formation device and the technology of lithium based secondary battery.
Background technology
In recent years, the going deep into of the anxiety of the energy and environmental protection ideas, new-energy automobile more and more receives people's favor and looks forward to.Conventional battery has only lead-acid battery to use on automobile, to serve as power source, but the lead-acid battery built-in problem is too many, can't move towards more wide commercial market.And lithium ion battery is the optimal selection of the power source that uses above the following automobile with its excellent performance.And lithium ion battery development trend from now on just develops to high power capacity, power type direction.Along with continuing to bring out of new material, the updating of equipment, technology constantly perfect, lithium ion battery can be widely applied the vehicles or energy-storage system field eventually.
The present global battery same trade all is more suitable for pure electric vehicle in the effort research and development and uses high-capacity lithium ion cell.Though the automobile industry of China has also been manufactured experimently some pure electric vehicles, effect still is unsatisfactory.Trace it to its cause is main with battery still.The performance that how to promote battery put battery industry in face of.Certainly the reason that causes is still very complicated.Need progressively solution or improvement.
Lithium series battery is in manufacture process, and what must strictly control is exactly moisture content.
Yet; The battery industry of China is on the technology of making the box hat battery at present; Continue to use the technology that opening changes into for various reasons always; This technology can't be avoided having air and get into inside battery, and must surpass the requirement that lithium series battery is made without the content that the water in air that super-dry is handled is divided in the stage that changes into.Caused the battery air-blowing, hidden danger such as cycle life shortening.
Summary of the invention
The present invention seeks to for real airtight the changing into of accomplishing, thereby reduce moisture content in the battery, improve the performance of lithium series battery, prolong cycle life, stop to cause the harmfulness of exploding because of air-blowing.Designed this airtight device that changes into and technology for this reason, abandoned opening and changed into, and the technology of playing the steel ball sealing.
For realizing that the foregoing invention purpose can realize that a kind of lithium based secondary battery closure apparatus for converting is made up of main body, stick harness, adjusting cap, sealing ring, spring by following scheme.
Described body interior hollow, both ends open up and down, body interior cavity divide two parts up and down; The top cavity is a circular cylindrical cavity; Can stablize stick harness and let stick harness slide up and down smoothly, the lower part cavity is taper, and this conical cavity cooperates stick harness to play sealing function; The outside middle-end of main body has a hexagon step, the specification screw thread of having nothing in common with each other up and down of step.
Described stick harness bottom is outstanding, and tapered body puts in during normal condition among the bottom aperture of main body; After safety device is opened, when resetting, plays stick harness the booster action of guiding playback, and there is ledge the stick harness upper end; As fixing spring, one or an above longitudinal fluting are arranged on the stick harness cylinder, effect is to discharge gas; Do not influence simultaneously sliding up and down of stick harness again, there is an annular groove outstanding bullet top, stick harness bottom, is used for fixing sealing ring.
One outstanding centrum is arranged on the inner top of described adjusting cap, act on the top of fixing spring, regulate on the cap and have bleeder port, the inner ring of regulating cap has the screw thread that cooperates main body upper end unanimity, effect regulating spring pressure.Bleeder port can be opened in front or the side of regulating cap, and wherein preferred version is to drive in the side, because prevent the effect that dust gets in addition.
Described sealing ring is arranged in the stick harness body annular groove; Described stick harness is arranged in the body interior inner chamber; The conical cavity of the sealing ring on stick harness bottom bullet and the annular groove and main body below is and is tightly connected; Described adjusting cap is combined closely through the screw thread that matches in the screw thread and the main body upper end of inner ring above main body, and described spring is arranged on stick harness upper end ledge and regulates the inner top of cap and go up between the outstanding cone.
The airtight chemical synthesis technology of a kind of lithium based secondary battery comprises following step:
A. in advance at the upper cover plate of the battery cap nut that fastening closure apparatus for converting uses of burn-oning,
B. the box hat of upper cover plate with the battery of packing into welded,
C. after in drying shed, injecting electrolyte, lithium based secondary battery closure apparatus for converting is installed on the upper cover plate from the preformed hole that this device is installed, entire cell really sealing accomplish,
D, begin to change into, when the gas pressure that produces was withstand voltage greater than the setting of this device, this device can momentary reset seal after opening pressure release again,
E, the battery after changing into are put into vacuum tank and are carried out vacuum pumping, make to be in vacuum state in the battery, open vacuum tank then, take out battery, arrive this, airtightly change into end.
The design of this closure apparatus for converting; At first emphasis has been considered how to accomplish when airtight changing into; It is airtight in moment that this device is opened the back of losing heart when battery produces a large amount of gas, and can not cause the outside air into battery that flows backwards, because; As long as the air into battery that flows backwards is arranged, this battery will damage so.So this Design of device has limited the outside air refluence and has got into battery, can when battery changes into generation gas, open fast smoothly again.
Beneficial effect of the present invention reduces moisture content in the battery, promotes the performance of lithium series battery, prolongs cycle life, stops to cause the harmfulness of exploding because of air-blowing.
Description of drawings
Structural representation after Fig. 1, the combination of closure apparatus for converting.
The cut-away view of Fig. 2, main body.
The vertical view of Fig. 3, main body.
The cut-away view of Fig. 4, stick harness.
Fig. 5, stick harness face upward diagrammatic sketch.
The cut-away view of Fig. 6, adjusting cap.
Embodiment
Embodiment describes in further detail below in conjunction with accompanying drawing:
A kind of lithium based secondary battery sealing formation device is formed described main body 1 inner hollow by main body 1, stick harness 2, adjusting cap 3, sealing ring 4, spring 5; Both ends open up and down, body interior cavity divide two parts up and down, and the top cavity is a circular cylindrical cavity; The lower part cavity is taper, and the outside middle-end of main body has a hexagon step 6, the specification screw thread of having nothing in common with each other up and down of step 6; Described stick harness 2 bottoms are outstanding, tapered body 7, and there is ledge 8 the stick harness upper end; Four longitudinal flutings 9 are arranged on the stick harness cylinder, and there is an annular groove 10 outstanding bullet 7 tops, stick harness 2 bottoms, and described adjusting cap has an outstanding centrum 11 on the 3 inner tops; Regulate on the cap 3 and have bleeder port 12, the inner ring of regulating cap 3 has and cooperates the consistent screw thread in main body upper end, is used for regulating spring pressure; Described sealing ring 4 is arranged in the stick harness body annular groove 10; Described stick harness 2 is arranged in the main body 1 inner inner chamber, and the sealing ring 4 on stick harness 2 bottom bullets 7 and the annular groove 10 and the conical cavity of main body 1 below are and are tightly connected, and described adjusting cap 3 is above main body 1; Screw thread through matching in the screw thread and the main body upper end of inner ring is combined closely, and described spring is arranged on stick harness upper end ledge 8 and regulates the inner top of cap and go up between the outstanding cone 11.
The airtight chemical synthesis technology of a kind of lithium based secondary battery comprises following step:
A. in advance at the upper cover plate of the battery cap nut that fastening closure apparatus for converting uses of burn-oning,
B. the box hat of upper cover plate with the battery of packing into welded,
C. after in drying shed, injecting electrolyte, lithium based secondary battery closure apparatus for converting is installed on the upper cover plate from the preformed hole that this device is installed, entire cell really sealing accomplish,
D begins to change into, and when the gas pressure that produces was withstand voltage greater than the setting of this device, this device can momentary reset seal after opening pressure release again,
E, the battery after changing into are put into vacuum tank and are carried out vacuum pumping, make to be in vacuum state in the battery, open vacuum tank then, take out battery, arrive this, airtightly change into end.
Claims (2)
1. lithium based secondary battery closure apparatus for converting is characterized in that described lithium based secondary battery closure apparatus for converting is made up of described body interior hollow main body, stick harness, adjusting cap, sealing ring, spring; Both ends open up and down, body interior cavity divide two parts up and down, and the top cavity is a circular cylindrical cavity; The lower part cavity is taper, and the outside middle-end of main body has a hexagon step, the specification screw thread of having nothing in common with each other up and down of step; Described stick harness bottom is outstanding, tapered body, and there is ledge the stick harness upper end; One or an above longitudinal fluting are arranged on the stick harness cylinder, and there is an annular groove outstanding bullet top, stick harness bottom, and an outstanding centrum is arranged on the inner top of described adjusting cap; Regulate on the cap and have bleeder port, the inner ring of regulating cap has and cooperates the consistent screw thread in main body upper end, is used for regulating spring pressure; Described sealing ring is arranged in the stick harness body annular groove; Described stick harness is arranged in the body interior inner chamber, and the conical cavity of the sealing ring on stick harness bottom bullet and the annular groove and main body below is and is tightly connected, and described adjusting cap is above main body; Screw thread through matching in the screw thread and the main body upper end of inner ring is combined closely, and described spring is arranged on stick harness upper end ledge and regulates the inner top of cap and go up between the outstanding cone.
2. airtight chemical synthesis technology of lithium based secondary battery comprises following step:
A. in advance at the upper cover plate of the battery cap nut that fastening closure apparatus for converting uses of burn-oning,
B. the box hat of upper cover plate with the battery of packing into welded,
C. after in drying shed, injecting electrolyte, lithium based secondary battery closure apparatus for converting is installed on the upper cover plate from the preformed hole that this device is installed, entire cell really sealing accomplish,
D. begin to change into, when the gas pressure that produces was withstand voltage greater than the setting of this device, this device can momentary reset seal after opening pressure release again,
E. the battery after changing into is put into vacuum tank and is carried out vacuum pumping, makes to be in vacuum state in the battery, opens vacuum tank then, takes out battery, arrives this, airtightly changes into end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103628729A CN102569898A (en) | 2011-11-16 | 2011-11-16 | Lithium-series secondary battery sealing and forming device and process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103628729A CN102569898A (en) | 2011-11-16 | 2011-11-16 | Lithium-series secondary battery sealing and forming device and process |
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| CN102569898A true CN102569898A (en) | 2012-07-11 |
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| CN2011103628729A Pending CN102569898A (en) | 2011-11-16 | 2011-11-16 | Lithium-series secondary battery sealing and forming device and process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887454A (en) * | 2012-12-24 | 2014-06-25 | 上海比亚迪有限公司 | Lithium ion battery seal structure and its lithium ion battery |
| CN104253255A (en) * | 2013-06-28 | 2014-12-31 | 襄阳正信航空技术有限公司 | Secondary explosion-proof device of storage battery |
| CN107146871A (en) * | 2017-06-29 | 2017-09-08 | 力信（江苏）能源科技有限责任公司 | A kind of aerating device for lithium battery fluid injection cup |
| CN109361024A (en) * | 2018-10-26 | 2019-02-19 | 漳州市华威电源科技有限公司 | A kind of production method of the valve controlled sealed lead-acid accumulator of liquid-leakage preventing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050244705A1 (en) * | 2004-04-28 | 2005-11-03 | Jing-Yih Cherng | Electrolyte injection and degas method of electric energy storage device |
| CN201498559U (en) * | 2009-09-11 | 2010-06-02 | 深圳市雄韬电源科技有限公司 | Lithium ion secondary battery sealing formation device |
| CN102169975A (en) * | 2011-03-30 | 2011-08-31 | 广州力柏能源科技有限公司 | Battery injection and formation control device |
-
2011
- 2011-11-16 CN CN2011103628729A patent/CN102569898A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050244705A1 (en) * | 2004-04-28 | 2005-11-03 | Jing-Yih Cherng | Electrolyte injection and degas method of electric energy storage device |
| CN201498559U (en) * | 2009-09-11 | 2010-06-02 | 深圳市雄韬电源科技有限公司 | Lithium ion secondary battery sealing formation device |
| CN102169975A (en) * | 2011-03-30 | 2011-08-31 | 广州力柏能源科技有限公司 | Battery injection and formation control device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887454A (en) * | 2012-12-24 | 2014-06-25 | 上海比亚迪有限公司 | Lithium ion battery seal structure and its lithium ion battery |
| CN103887454B (en) * | 2012-12-24 | 2016-04-13 | 上海比亚迪有限公司 | A kind of lithium ion battery enclosuring structure and lithium ion battery thereof |
| CN104253255A (en) * | 2013-06-28 | 2014-12-31 | 襄阳正信航空技术有限公司 | Secondary explosion-proof device of storage battery |
| CN107146871A (en) * | 2017-06-29 | 2017-09-08 | 力信（江苏）能源科技有限责任公司 | A kind of aerating device for lithium battery fluid injection cup |
| CN107146871B (en) * | 2017-06-29 | 2023-01-17 | 利信(江苏)能源科技有限责任公司 | A aerating device for lithium cell annotates liquid cup |
| CN109361024A (en) * | 2018-10-26 | 2019-02-19 | 漳州市华威电源科技有限公司 | A kind of production method of the valve controlled sealed lead-acid accumulator of liquid-leakage preventing |
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Application publication date: 20120711 |