CN103165854B - A kind of rectangular lithium ion battery fluid injection mode and fixture - Google Patents
A kind of rectangular lithium ion battery fluid injection mode and fixture Download PDFInfo
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- CN103165854B CN103165854B CN201110428178.2A CN201110428178A CN103165854B CN 103165854 B CN103165854 B CN 103165854B CN 201110428178 A CN201110428178 A CN 201110428178A CN 103165854 B CN103165854 B CN 103165854B
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- ion 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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Abstract
The invention provides the controlled lithium ion battery liquid injection mode of a kind of thickness and fixture, before fluid injection, first get out liquid injecting clamp, treat between two battery separators putting fixture that the battery of fluid injection is smooth by multiple, control the distance between battery separator, tighten both sides bolt respectively, then the fixture clamping battery is put into liquid injecting box carry out inverse inhalation type fluid injection.Adopt in this way, effectively can control cell thickness, improve electrolyte utilance, thus improve the up-to-standard rate of lithium ion battery, there is great practice significance.
Description
Technical field
The present invention relates to field of batteries, especially relate to lithium ion battery and manufacture field.
Background technology
At present, lithium ion battery have specific energy high, recycle often, the advantages such as memory time is long, not only at portable electric appts as mobile phone, digital camera and laptop computer are widely used, and be widely used in the big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool, therefore require more and more higher to the up-to-standard rate of lithium ion battery.
Electrolyte is the important component part of lithium ion battery, manufactures in the course of processing at lithium ion battery, needs electrolyte to be injected by the liquid injection hole on battery.The fluid injection pattern of current lithium ion battery is mainly divided into vacuum type fluid injection and inverse inhalation type fluid injection.Vacuum type fluid injection mainly adopts rotary-disk type structure, is to treat that intercell is positioned in rotatable card, makes each workpiece carry out when being placed in predetermined station having vacuumized injection process by dial rotation.But there is following defect in this tactic pattern: 1) filling machine still remains electrolyte completing in each fluid injection week after date needle tubing, cannot ensure the reservoir quantity of each battery; 2), under filling machine and operating personnel are in an atmospheric environment together, the stable of environment is unfavorable for; 3) need manually arranging batteries entered station and taken out from station by battery after completing fluid injection again, production efficiency is low.Battery mainly immerses in electrolyte by inverse inhalation type fluid injection, vacuumizes and makes electrolyte suck inside battery.It is large that electrolyte content is once injected in inverse inhalation type fluid injection, can meet technological standards requirement, but also there is following defect: 1) battery sucks too much electrolyte and causes cell thickness to exceed standard; 2) in subsequent operation, need unnecessary electrolyte to extrude, cause the waste of electrolyte, battery surface remains a large amount of electrolyte and has a strong impact on battery outward appearance simultaneously.
Summary of the invention
Main purpose of the present invention is for the shortcoming existing for prior art, the lithium ion battery liquid injection mode providing a kind of thickness controlled and fixture, effectively can control cell thickness, improves electrolyte utilance, thus improve the up-to-standard rate of lithium ion battery, there is great practice significance.The present invention proposes following technical scheme for this reason:
A kind of fluid injection mode of rectangular lithium ion battery, before fluid injection, first get out liquid injecting clamp, treat between two battery separators putting fixture that the battery of fluid injection is smooth by multiple, control the distance between battery separator, tighten both sides bolt respectively, then the fixture clamping battery is put into liquid injecting box carry out inverse inhalation type fluid injection.
The disposing way of described battery is that the wide face of square lithium core is parallel to battery separator;
Distance between described battery separator is 0-0.5mm larger than battery core nominal thickness.
A kind of rectangular lithium ion battery liquid injecting clamp comprises: battery case 4, front apron 10, backboard 1, fixed head 3, side shield 9, hold-down nut 2, set bolt 8, bolt frame 7 and battery separator 6.
A bolt frame is respectively had, set bolt and hold-down nut outside described liquid injecting clamp two side shield;
Described set bolt is fixed by nut through bolt frame and fixed dam;
Described battery case width is 20-150mm;
The described battery case degree of depth is 70-100mm;
According to treating that fluid injection lithium ion battery height is different bottom described battery case, base plate can be placed;
Dead slot is had between described side shield;
Described fixed head both sides are designed to the narrower structure being with screw, can through the dead slot in the middle of side shield;
Step design is arranged at described front apron and backboard top;
Described battery separator is hard material;
Described fixed head is hard material, and its thickness is 2-20mm;
The present invention has following beneficial effect:
Electrolyte filling method provided by the invention effectively can control cell thickness, greatly reduces the thickness fraction defective of resultant battery, thus effectively improves battery qualification rate.
Electrolyte filling method provided by the invention because of cell thickness during electrolyte suck-back controlled, so too much electrolyte can not be sucked while guarantee reservoir quantity, effectively prevent the electrolyte waste caused when traditional inverse inhalation type fluid injection will be extruded because sucking too much electrolyte, thus substantially increase the utilance of electrolyte.
All there is step design at liquid injecting clamp front and rear baffle top of the present invention, and can avoid to after changing into during battery liquid-filling, fixture is inverted into liquid injecting box, the short circuit phenomenon that battery plus-negative plate is formed bottom contacting metal liquid injecting box simultaneously.
The present invention adopts battery separator to be separated by adjacent battery on cell thickness face, can avoid the appearances of wear that between battery, phase mutual friction causes on the one hand, the difference in thickness between multiple batteries that simultaneously also can effectively prevent battery unbalance stress from causing.
Clamping device of the present invention adopts fixed head, can compress quadrate lithium battery further on the one hand, thrust can be made to be evenly distributed on the shell of quadrate lithium battery on the other hand, avoids pressure to concentrate damage battery.
Accompanying drawing explanation
The liquid injecting clamp structural representation of Fig. 1 lithium ion battery.
Wherein: 1 is backboard, 2 is hold-down nut, and 3 is fixed head, and 4 is battery case, and 5 for treating intercell, and 6 is battery separator, and 7 is bolt frame, and 8 is set bolt, and 9 is side shield, and 10 is front apron.
Fig. 2 is the partial enlarged view in Fig. 1
Embodiment
Embodiment 1
In the above-mentioned electrolyte filling method of employing, need to use fixture to be clamped by quadrate lithium battery.
We adopt fixture as shown in Figure 1.Fixture comprises multiple parallel battery separator 6, and will treat that the rectangular lithium ion battery 5 of fluid injection is emitted between parallel dividing plate 6, mobile fixed head 3 clamps battery.Bolt 8 outside two side shields is passed the screw of bolt frame 7 and fixed head 3, pre-fix respectively with hold-down nut 2.Distance between adjustment battery separator 6 treats intercell thickness 0.2mm being greater than, and be then locked nut 2.So can treat being well placed that the fixture of intercell is put in liquid injecting box and carry out fluid injection.
Battery separator 6 and fixed head 3, its area is more than or equal to the larger size of rectangular lithium ion battery area, preferably adopt hard material, clamping force can be prevented excessive and cause the deformation of battery separator and fixed head, thus make unbalance stress between same row's battery and cause the uneven thickness of battery.
The side of front apron 10 also can wide go out the edge of side shield, output screw at the side of front apron 10, cancel bolt frame, directly passed by the screw of set bolt 8 by front apron, the screw through fixed head 3 is fixed.
In actual production, for enhancing productivity, also the desirable battery separator 6 that disappears, suitably adjusts clamping force, also can reach beneficial effect of the present invention.
The above embodiment only have expressed several preferably execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (8)
1. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that a thickness is controlled, it is characterized in that: before fluid injection, first get out liquid injecting clamp, liquid injecting clamp comprises battery case, front apron, backboard, fixed head, side shield, hold-down nut, set bolt, bolt frame and battery separator; Described front apron, backboard and two side shields surround an accommodation space, and described battery case is positioned at this accommodation space, put battery and battery separator within described battery case; Described fixed head is arranged between two side shields movably; Described two side shields respectively have bolt frame, set bolt and a hold-down nut outward, and set bolt is fixed by hold-down nut through bolt frame and fixed head; Step design is arranged at described front apron and backboard top; Treat between the battery separator putting liquid injecting clamp that the battery of fluid injection is smooth by multiple, mobile fixed head clamping battery; Control the distance between battery separator, tighten liquid injecting clamp both sides set bolt respectively, then the liquid injecting clamp clamping battery is put into liquid injecting box carry out inverse inhalation type fluid injection.
2. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that thickness as claimed in claim 1 is controlled, is characterized in that: the disposing way of described battery is that square lithium core wide direction is parallel to battery separator, is parallel to fixed head.
3. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that thickness as claimed in claim 1 is controlled, is characterized in that: the distance between described battery separator is 0-0.5mm larger than battery battery core nominal thickness.
4. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that thickness as claimed in claim 1 is controlled, is characterized in that: according to treating that fluid injection lithium ion battery height is different bottom described battery case, can place base plate.
5. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that thickness as claimed in claim 1 is controlled, is characterized in that: have dead slot between described side shield.
6. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that thickness as claimed in claim 5 is controlled, is characterized in that: described fixed head both sides are designed to be with the narrower structure of screw, can through the dead slot in the middle of side shield.
7. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that thickness as claimed in claim 1 is controlled, is characterized in that: described battery separator is hard material.
8. the inverse inhalation type fluid injection mode of the rectangular lithium ion battery that thickness as claimed in claim 1 is controlled, it is characterized in that: described fixed head is hard material, its thickness is 2-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428178.2A CN103165854B (en) | 2011-12-19 | 2011-12-19 | A kind of rectangular lithium ion battery fluid injection mode and fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428178.2A CN103165854B (en) | 2011-12-19 | 2011-12-19 | A kind of rectangular lithium ion battery fluid injection mode and fixture |
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| Publication Number | Publication Date |
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| CN103165854A CN103165854A (en) | 2013-06-19 |
| CN103165854B true CN103165854B (en) | 2015-08-19 |
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| CN201110428178.2A Active CN103165854B (en) | 2011-12-19 | 2011-12-19 | A kind of rectangular lithium ion battery fluid injection mode and fixture |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900921A (en) * | 2015-04-03 | 2015-09-09 | 深圳市博力康电池有限公司 | Technology for producing high magnification power cylinder lithium ion battery |
| CN108972413B (en) * | 2018-08-31 | 2023-09-26 | 利信(江苏)能源科技有限责任公司 | Heat spreading test fixture and heat spreading test method |
| CN110834291A (en) * | 2019-12-10 | 2020-02-25 | 浦江三思光电技术有限公司 | Lamp panel positioning jig |
| CN116900490B (en) * | 2023-09-08 | 2023-12-08 | 金隅星节能保温科技(唐山)有限公司 | Curing oven chain plate welding device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921174A (en) * | 2005-08-22 | 2007-02-28 | 天津力神电池股份有限公司 | Method for reducing thickness of lithium ion rectangular cell |
| CN201213145Y (en) * | 2008-06-30 | 2009-03-25 | 深圳市比克电池有限公司 | Clamp for battery aging |
| CN201877498U (en) * | 2010-11-15 | 2011-06-22 | 天津力神电池股份有限公司 | Square liquid injection tooling for lithium ion batteries |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02148580A (en) * | 1988-11-29 | 1990-06-07 | Meidensha Corp | Electrolyte circulation layer-built cell |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921174A (en) * | 2005-08-22 | 2007-02-28 | 天津力神电池股份有限公司 | Method for reducing thickness of lithium ion rectangular cell |
| CN201213145Y (en) * | 2008-06-30 | 2009-03-25 | 深圳市比克电池有限公司 | Clamp for battery aging |
| CN201877498U (en) * | 2010-11-15 | 2011-06-22 | 天津力神电池股份有限公司 | Square liquid injection tooling for lithium ion batteries |
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| CN103165854A (en) | 2013-06-19 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Liquid injecting method and clamp of square lithium ion battery Effective date of registration: 20171227 Granted publication date: 20150819 Pledgee: China Co truction Bank Corp Dongguan branch Pledgor: Sinowatt Dongguan Limited Registration number: 2017440000208 |
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Date of cancellation: 20200708 Granted publication date: 20150819 Pledgee: China Co. truction Bank Corp Dongguan branch Pledgor: Dongguan Zhenhua New Energy Technology Co.,Ltd. Registration number: 2017440000208 |
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