CN204760472U - Cylinder lithium ion battery annotates liquid retainer cup - Google Patents
Cylinder lithium ion battery annotates liquid retainer cup Download PDFInfo
- Publication number
- CN204760472U CN204760472U CN201520480439.9U CN201520480439U CN204760472U CN 204760472 U CN204760472 U CN 204760472U CN 201520480439 U CN201520480439 U CN 201520480439U CN 204760472 U CN204760472 U CN 204760472U
- Authority
- CN
- China
- Prior art keywords
- fluid injection
- wall
- cup
- boss
- lithium ion
- 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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Classifications
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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
Abstract
The utility model provides a cylinder lithium ion battery annotates liquid retainer cup, including sealed block and notes liquid cup, be equipped with the boss on the roof of sealed block, the boss will seal the inside inner chamber and the exocoel of faling into of block, being equipped with on the roof and annotating liquid hole and vacuum hole, annotate the liquid hole and communicate with each other with the inner chamber, the vacuum hole communicates with each other with the exocoel, annotate the inside electrolyte cavity that is of liquid cup, electrolyte cavity upper end has the opening, the lower extreme is connected with and annotates the liquid pipe, annotate the inside gas flow passageway of having seted up of outer wall of liquid cup, the surface of the bottom of outer wall is cylindrical, sealing the block and covering the top of locating notes liquid cup, annotate the surface of the outer wall of liquid cup and the fit with the inner surface of sealed lateral wall of blocking a shot and be in the same place, the boss is in the same place with the top laminating of the outer wall of notes liquid cup, inner chamber and electrolyte cavity intercommunication, exocoel and gas flow passageway intercommunication. The utility model discloses can improve the liquid speed of annotating, reduce impurity and pollute, but reuse.
Description
Technical field
The utility model relates to technical field of lithium-ion battery, specifically a kind of cylindrical lithium ion battery fluid injection a set of cups.
Background technology
Lithium battery is a class is negative material, the battery using non-aqueous electrolytic solution by lithium metal or lithium alloy.Lithium battery is broadly divided into two classes: lithium metal battery and lithium ion battery.The lithium of lithium ion battery not containing metallic state, and can charge.Because the chemical characteristic of lithium metal is very active, make the processing of lithium metal, preservation, use, very high to environmental requirement, so lithium battery is not applied for a long time.Along with the development of science and technology, present lithium battery becomes main flow.
But, when the fluid injection of high-energy-density cylindrical lithium ion battery is produced, because battery space is narrow and small and reservoir quantity increases, when causing injecting electrolytic solution, pole piece infiltrates slowly, is difficult to enter housing, thus be exposed to for a long time in external environment, cause contaminant overstandard, reduce the chemical property of battery.
Utility model content
The utility model proposes a kind of cylindrical lithium ion battery fluid injection a set of cups, inject when solving cylindrical lithium ion battery fluid injection production in prior art slowly, cause the problems such as contaminant overstandard.
The technical solution of the utility model is achieved in that
A kind of cylindrical lithium ion battery fluid injection a set of cups, comprises sealing cap and fluid injection cup;
Described sealing cap has roof and sidewall, and described roof is provided with boss, and the inside of sealing cap is divided into inner chamber and is centered around the exocoel outside inner chamber by described boss; Described roof is provided with liquid injection hole and vacuum hole, and described liquid injection hole communicates with described inner chamber, and described vacuum hole communicates with described exocoel;
Described fluid injection cup inside is electrolyte cavity, and described electrolyte cavity upper end has opening, and described electrolyte cavity lower end is connected with liquid injection pipe; The outer pars intramuralis of described fluid injection cup offers air ventilation passage, and the upper end open of described air ventilation passage is opened in the top of described outer wall, and the lower ending opening of described air ventilation passage is opened in the bottom of described outer wall; The outer surface of the bottom of described outer wall is cylindrical;
Described sealing cap is covered on the top of described fluid injection cup, the inner surface of the outer surface of the outer wall of fluid injection cup and the sidewall of sealing cap fits together, the top of the outer wall of described boss and fluid injection cup fits together, described inner chamber is communicated with described electrolyte cavity, and described exocoel is communicated with described air ventilation passage.
Further, sealing ring is provided with between the top of the outer wall of described boss and fluid injection cup.
Further, described sealing cap is cylindrical.
Further, described fluid injection cup is cylindrical.
Further, described boss is circular boss.
Further, described boss is provided with groove, and described sealing ring is located in described groove.
The beneficial effects of the utility model are:
The utility model adopts and leave air ventilation passage structure in fluid injection cup outer wall, and during fluid injection, in battery core, gas is extracted out through vacuum hole by air ventilation passage, and electrolyte cavity electrolyte inside enters rapidly battery pole piece inside under stress simultaneously; Contact with external environment because sealing cap completely cuts off electrolyte, and the inner gas bleeding of battery core is extracted out without electrolyte, effectively reduces impurity content in electrolyte, improves battery performance, simple possible; The utility model sealing effectiveness is good, and can reuse, and reduces high use cost, promotes market application.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the using state cross-sectional schematic of the utility model embodiment;
Fig. 2 is the cross-sectional schematic of sealing cap in Fig. 1;
Fig. 3 is the cross-sectional schematic of fluid injection cup in Fig. 1.
Wherein:
1, sealing cap; 2, fluid injection cup; 3, boss; 4, liquid injection hole; 5, vacuum hole; 6, electrolyte cavity; 7, liquid injection pipe; 8, outer wall; 9, air ventilation passage; 10, upper end open; 11, lower ending opening; 12, sealing ring; 13, core coil pin hole; 14, battery container.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the cylindrical lithium ion battery fluid injection a set of cups in the present embodiment, comprises sealing cap 1 and fluid injection cup 2, and in the present embodiment, sealing cap 1 and fluid injection cup 2 are all cylindrical, sealing cap 1 adopts brass to make, and fluid injection cup 2 adopts PP material.
Wherein, see Fig. 2, sealing cap 1 has roof and sidewall, and roof is provided with circular boss 3, and the inside of sealing cap 1 is divided into inner chamber and is centered around the exocoel outside inner chamber by boss 3, and in the present embodiment, inner chamber is cylindrical, and exocoel is annulus cylindricality; Roof is provided with liquid injection hole 4 and vacuum hole 5.In the present embodiment, liquid injection hole 4 is positioned at roof central authorities, communicates with inner chamber; Vacuum hole 5 has two, is positioned at the both sides of liquid injection hole 4, and communicates with exocoel.
See Fig. 3, fluid injection cup 2 inside is columniform electrolyte cavity 6, and electrolyte cavity 6 upper end has opening, and electrolyte cavity 6 lower end is connected with liquid injection pipe 7; Outer wall 8 inside of fluid injection cup 2 offers air ventilation passage 9, offers 6 air ventilation passage 9 in the present embodiment altogether.The upper end open 10 of air ventilation passage 9 is opened in the top of outer wall 8, and the lower ending opening 11 of air ventilation passage 9 is opened in the bottom of outer wall 8.
See Fig. 1, sealing cap 1 is covered on the top of fluid injection cup 2, and the inner surface of the outer surface of the outer wall 8 of fluid injection cup 2 and the sidewall of sealing cap 1 fits together, and boss 3 fits together with the top of the outer wall 8 of fluid injection cup 2.In the present embodiment, boss 3 and fluid injection cup 2 joint place are provided with sealing ring 12, and boss 3 is provided with groove, and sealing ring 12 is located in groove.
After boss 3 and fluid injection cup 2 are fitted, inner chamber is communicated with electrolyte cavity 6, and exocoel is communicated with air ventilation passage 9.
The operation principle of the present embodiment is:
See Fig. 1, when giving the fluid injection of high-energy-density cylindrical lithium ion battery, by sealing cap 1 and fluid injection cup 2 closed butt joint, and fluid injection cup 2 lower end liquid injection pipe 7 is inserted in the middle of core coil pin hole 13, keep battery container 14 close contact of fluid injection cup 2 lower end and cylindrical lithium ion battery, outside certain mass electrolyte enters electrolyte cavity 6 by liquid injection hole 4, then-0.08MPa is evacuated to through vacuum hole 5, gas is by bottom gas opening, sealing cap 1 is entered through air ventilation passage 9, then discharge through vacuum hole 5, in this process, electrolyte enters into core coil pin hole 13 fast through liquid injection pipe 7 under pressure, the electrolyte not entering battery core is temporarily stored in electrolyte cavity 6, not with extraneous contact, simultaneously, battery core gas bleeding does not flow through electrolyte yet, reduce electrolyte contamination, improve battery performance.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. a cylindrical lithium ion battery fluid injection a set of cups, is characterized in that, comprises sealing cap and fluid injection cup;
Described sealing cap has roof and sidewall, and described roof is provided with boss, and the inside of sealing cap is divided into inner chamber and is centered around the exocoel outside inner chamber by described boss; Described roof is provided with liquid injection hole and vacuum hole, and described liquid injection hole communicates with described inner chamber, and described vacuum hole communicates with described exocoel;
Described fluid injection cup inside is electrolyte cavity, and described electrolyte cavity upper end has opening, and described electrolyte cavity lower end is connected with liquid injection pipe; The outer pars intramuralis of described fluid injection cup offers air ventilation passage, and the upper end open of described air ventilation passage is opened in the top of described outer wall, and the lower ending opening of described air ventilation passage is opened in the bottom of described outer wall; The outer surface of the bottom of described outer wall is cylindrical;
Described sealing cap is covered on the top of described fluid injection cup, the inner surface of the outer surface of the outer wall of fluid injection cup and the sidewall of sealing cap fits together, the top of the outer wall of described boss and fluid injection cup fits together, described inner chamber is communicated with described electrolyte cavity, and described exocoel is communicated with described air ventilation passage.
2. a kind of cylindrical lithium ion battery fluid injection a set of cups as claimed in claim 1, is characterized in that, be provided with sealing ring between the top of the outer wall of described boss and fluid injection cup.
3. a kind of cylindrical lithium ion battery fluid injection a set of cups as claimed in claim 2, it is characterized in that, described sealing cap is cylindrical.
4. a kind of cylindrical lithium ion battery fluid injection a set of cups as claimed in claim 2, it is characterized in that, described fluid injection cup is cylindrical.
5. a kind of cylindrical lithium ion battery fluid injection a set of cups as claimed in claim 2, it is characterized in that, described boss is circular boss.
6. a kind of cylindrical lithium ion battery fluid injection a set of cups as claimed in claim 5, it is characterized in that, described boss is provided with groove, and described sealing ring is located in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520480439.9U CN204760472U (en) | 2015-07-06 | 2015-07-06 | Cylinder lithium ion battery annotates liquid retainer cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520480439.9U CN204760472U (en) | 2015-07-06 | 2015-07-06 | Cylinder lithium ion battery annotates liquid retainer cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204760472U true CN204760472U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520480439.9U Expired - Fee Related CN204760472U (en) | 2015-07-06 | 2015-07-06 | Cylinder lithium ion battery annotates liquid retainer cup |
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| CN (1) | CN204760472U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025168A (en) * | 2016-07-26 | 2016-10-12 | 惠州亿纬锂能股份有限公司 | Lithium battery electrolyte injecting device and lithium battery electrolyte injecting method |
| CN109742451A (en) * | 2019-01-23 | 2019-05-10 | 深圳新恒业电池科技有限公司 | The electrolyte filling method of column lithium ion battery |
| CN115411471A (en) * | 2022-08-24 | 2022-11-29 | 天能新能源(湖州)有限公司 | Battery hole plug structure capable of exhausting and injecting liquid and lithium ion battery |
| CN116613486A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
-
2015
- 2015-07-06 CN CN201520480439.9U patent/CN204760472U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025168A (en) * | 2016-07-26 | 2016-10-12 | 惠州亿纬锂能股份有限公司 | Lithium battery electrolyte injecting device and lithium battery electrolyte injecting method |
| CN106025168B (en) * | 2016-07-26 | 2019-01-29 | 惠州亿纬锂能股份有限公司 | A kind of lithium battery priming device and its electrolyte filling method |
| CN109742451A (en) * | 2019-01-23 | 2019-05-10 | 深圳新恒业电池科技有限公司 | The electrolyte filling method of column lithium ion battery |
| CN115411471A (en) * | 2022-08-24 | 2022-11-29 | 天能新能源(湖州)有限公司 | Battery hole plug structure capable of exhausting and injecting liquid and lithium ion battery |
| CN116613486A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
| CN116613486B (en) * | 2023-07-17 | 2023-11-17 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170607 Granted publication date: 20151111 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170720 Granted publication date: 20151111 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20181025 Granted publication date: 20151111 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211025 Granted publication date: 20151111 |
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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: 20151111 Termination date: 20190706 |