CN204007766U - A kind of battery changes into gas production rate and measures system - Google Patents
A kind of battery changes into gas production rate and measures system Download PDFInfo
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- CN204007766U CN204007766U CN201420010077.2U CN201420010077U CN204007766U CN 204007766 U CN204007766 U CN 204007766U CN 201420010077 U CN201420010077 U CN 201420010077U CN 204007766 U CN204007766 U CN 204007766U
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Abstract
The utility model provides a kind of battery to change into gas production rate and measures system, and this system comprises that battery, battery change into gas production rate determinator, and connects battery and battery and change into the gas transmission conduit of gas production rate determinator; The utility model battery change into gas production rate measure system architecture simple, easy and simple to handle, safe and effective, can realize and detect lithium ion battery whenever and wherever possible and change into gas production rate, and whole test process does not change battery and changes into state, consistent with true production status, can really reflect accurately the aerogenesis situation that changes into.
Description
Technical field
The utility model relates to battery manufacture field, particularly one and changes into gas production rate collection mensuration system.
Background technology
The requirement of the energy and environment makes lithium ion battery applications further extensive.In battery manufacturing process process, changing into is a very important step.In formation process, electrolyte solvent forms solid electrolyte interface film on negative pole, meanwhile in electrolyte system there is electrochemical reaction in solvent composition ethylene carbonate (EC), dimethyl carbonate (DMC), methyl ethyl carbonate (EMC), diethyl carbonate (DEC) etc. under certain potentials, produces CO
2, CH
4, C
2h
4, H
2deng gas.The existence of gas can cause performance degradation, internal resistance increase, dilatational strain of lithium ion battery etc.Different positive and negative pole material systems, different electrolytic solution, different battery structure, different front pole piece water cut, aerogenesis rule difference, the gas componant of generation, the volume difference of changing into.
The research that changes into aerogenesis can be offered help for selection, the qualification of electrolytic solution quality and the optimization of battery manufacturing process etc. of battery plus-negative plate material, and chemical property to battery, cycle performance, security performance etc. all can produce material impact.Therefore the research that, changes into aerogenesis has great importance.
But current existing aerogenesis gathering-device more complicated, be difficult to operation, and gases used collection experimental cell all needs to immerse in electrolytic solution, state while changing into production battery is inconsistent, can not entirely accurate the real aerogenesis situation of ground reflection, therefore need a kind of simple, effectively, accurately, the instant means that detect.
Utility model content
The purpose of this utility model is in order to solve the deficiencies in the prior art, keeping and producing under all conditions that change into state consistency of battery, provide a kind of simple in structure, easy and simple to handle, safe and effective, can realize whenever and wherever possible the gas collection determinator detecting, for selection, electrolytic solution qualification, the manufacturing process optimization of positive and negative pole material in battery manufacture process provide strong support, thereby significantly promote the overall performance of final battery product.
The utility model is achieved through the following technical solutions:
A kind of battery changes into gas production rate and measures system, and this system comprises that battery, battery change into gas production rate determinator, and connects battery and battery and change into the gas transmission conduit of gas production rate determinator.
Wherein said gas transmission conduit and described battery and described battery change into gas production rate determinator for being tightly connected.
Wherein said battery changes into gas production rate determinator and is made up of the element of energy quantitative measurement gas volume.
The element of wherein said quantitative measurement gas volume is container and the beaker with accurate volume markings.
The wherein said container with accurate volume markings is acid buret, and described acid buret is inverted in beaker, and beaker and acid buret are full of the medium of mensurated gas composition volume.
Wherein said medium is dry organic solvent.
Wherein said dry organic solvent is dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate, carbonic allyl ester, 1-METHYLPYRROLIDONE and other organic solvents.
In wherein said beaker, dry molecular sieves is set.
The link of wherein said gas transmission conduit and described battery arranges sealing-plug outward by syringe needle and is tightly connected.
Wherein said syringe needle diameter is identical with the liquid injection hole of described battery, described sealing-plug be solid, with the rubber plug on sealing lip limit.
Wherein said battery is lithium ion battery, lead-acid battery, lead carbon battery or alkaline battery.
Before battery changes into, stainless steel syringe needle inserted in battery liquid-filling hole and is seated, fixing rubber plug simultaneously, and be coated with again one deck vaseline in rubber plug surrounding.By the dry organic solvent of noting approximately 70% in beaker, acid buret is inverted in organic solvent, about 50mm in buret is carefully inserted in emulsion tube one end, and keep this end opening place height of emulsion tube and battery liquid-filling hole height of living in basically identical.Utilize rubber pipette bulb to make suck-back in buret enter organic solvent to full, then regulating liquid surface is to 50mL scale mark place.Now, can open and discharge and recharge cabinet and carry out formation charging, collect gas.
Application the beneficial effects of the utility model:
The utility model is simple in structure, easy and simple to handle, safe and effective, can realize whenever and wherever possible and detect and change into gas production rate, and whole test process do not change battery and change into state, consistent with true production status, can really reflect accurately the aerogenesis situation that changes into.
Brief description of the drawings
Fig. 1: the utility model battery changes into gas production rate and measures system schematic
Fig. 2: the utility model battery changes into gas production rate and measures system battery end enlarged drawing
Fig. 3: the utility model battery changes into gas production rate and measures system gas collecting terminal enlarged drawing
Fig. 4: four kinds of different manganese lithium 10Ah batteries of pole piece water cut change into aerogenesis recording curve
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described the utility model for better illustrating.
As Figure 1-3, a kind of battery changes into gas production rate and measures system, comprise battery, emulsion tube 1, stainless steel syringe needle 2, rubber plug 3, acidimetry pipe 4 and beaker 5, described emulsion tube A end connects stainless steel syringe needle, described stainless steel syringe needle is outside equipped with rubber plug, described emulsion tube B end opening passes in described acid buret, and described acidimetry pipe is inverted in beaker.
Described emulsion tube is the thin silicon rubber emulsion tube that a diameter 1mm, length are 50cm, described stainless steel tap diameter is consistent with battery liquid-filling hole, length is 5mm, and described stainless steel syringe needle arrange in addition outward one solid, corrosion-resistant, with the rubber plug on sealing lip limit, and make stainless steel syringe needle expose about 3mm, described emulsion tube B end opening, lead to one and be full of in the 50mL acidimetry pipe of dry carbonic allyl ester, described acid buret is inverted in and fills with dry carbonic allyl ester and be placed with in the beaker of dry molecular sieves.
Change into aerogenesis record with manganese lithium 10Ah battery, and carry out the example that is optimized for of drying process, chemical synthesis technology, it is as follows that battery of the present invention changes into gas production rate mensuration system work process:
1, get and produce a upper manganese lithium 10Ah battery to be changed, before battery changes into, stainless steel syringe needle 2 is inserted in battery liquid-filling hole and is seated, fix rubber plug 3 simultaneously, and be coated with again one deck vaseline in rubber plug 3 surroundings.
2, by the dry carbonic allyl ester of noting approximately 70% in beaker 5, acid buret 4 is inverted in carbonic allyl ester, latex pipe B end is carefully inserted to about 50mm in buret, and keep emulsion tube B end opening place's height and battery liquid-filling hole height of living in basically identical.
3, utilize rubber pipette bulb to make suck-back in buret enter carbonic allyl ester to full, then regulating liquid surface is to 50mL scale mark place.Now, unlatching discharges and recharges cabinet and carries out formation charging, records time and the volume of γ-ray emission.
4, get the battery changing in front drying process, test respectively pole piece water cut, then measure respectively gas production rate and aerogenesis time.
Fig. 4 is four kinds of batteries that pole piece water cut is different, measures gas production rate and the curve map of aerogenesis time.Four kinds of batteries are the battery changing in front drying process, test respectively pole piece water cut, be followed successively by from top to bottom a, b, c, d, pole piece water cut is respectively: a is that 500ppm, b are that 350ppm, c are that 200ppm, d are 150ppm, adopt the determinator test in embodiment, found that pole piece water cut is higher, while changing into, gas production rate is larger.In the time that pole piece water cut is less than 150ppm, aerogenesis volume is about 1mL, can meet need of production.Therefore can determine accordingly that the water cut threshold limit value that changes into front drying process is 150ppm, and the final pole piece water cut in drying process is decided to be and is not more than 150ppm.Change into the aerogenesis time period concentrate on change into start after about 50min-170min, and the fewer aerogenesis volume of pole piece water cut is fewer.Therefore can be after changing into shift to an earlier date sealing of hole when 180min, reduce battery opening time, thereby reduce the adverse effect of external environment moisture to battery.
The utility model is simple in structure, easy and simple to handle, safe and effective, can realize whenever and wherever possible and detect and change into gas production rate, and whole test process do not change battery and change into state, consistent with true production status, can really reflect accurately the aerogenesis situation that changes into.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (6)
1. battery changes into gas production rate and measures a system, and this system comprises that battery, battery change into gas production rate determinator, and connects battery and battery and change into the gas transmission conduit of gas production rate determinator, it is characterized in that,
Described battery changes into gas production rate determinator and is made up of the element of energy quantitative measurement gas volume, the element of described quantitative measurement gas volume is container and the beaker with accurate volume markings, the described container with accurate volume markings is acid buret, described acid buret is inverted in beaker, and beaker and acid buret are full of the medium of mensurated gas composition volume;
Described gas transmission conduit and described battery and described battery change into gas production rate determinator for being tightly connected.
2. battery according to claim 1 changes into gas production rate and measures system, and wherein said medium is dry organic solvent.
3. battery according to claim 1 changes into gas production rate and measures system, in wherein said beaker, dry molecular sieves is set.
4. battery according to claim 1 changes into gas production rate and measures system, and the link of wherein said gas transmission conduit and described battery arranges sealing-plug outward by syringe needle and is tightly connected.
5. battery according to claim 4 changes into gas production rate and measures system, and wherein said syringe needle diameter is identical with the liquid injection hole of described battery, described sealing-plug be solid, with the rubber plug on sealing lip limit.
6. battery according to claim 1 changes into gas production rate and measures system, and wherein said battery is lithium ion battery, lead-acid battery, lead carbon battery or alkaline battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010077.2U CN204007766U (en) | 2014-01-08 | 2014-01-08 | A kind of battery changes into gas production rate and measures system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010077.2U CN204007766U (en) | 2014-01-08 | 2014-01-08 | A kind of battery changes into gas production rate and measures system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007766U true CN204007766U (en) | 2014-12-10 |
Family
ID=52047748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010077.2U Expired - Fee Related CN204007766U (en) | 2014-01-08 | 2014-01-08 | A kind of battery changes into gas production rate and measures system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007766U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769642A (en) * | 2017-01-12 | 2017-05-31 | 浙江零跑科技有限公司 | A kind of method for measuring inner pressure of battery and gas production |
| CN107490417A (en) * | 2017-07-25 | 2017-12-19 | 合肥国轩高科动力能源有限公司 | Device and method for testing gas production rate of lithium ion power battery in formation stage |
-
2014
- 2014-01-08 CN CN201420010077.2U patent/CN204007766U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769642A (en) * | 2017-01-12 | 2017-05-31 | 浙江零跑科技有限公司 | A kind of method for measuring inner pressure of battery and gas production |
| CN107490417A (en) * | 2017-07-25 | 2017-12-19 | 合肥国轩高科动力能源有限公司 | Device and method for testing gas production rate of lithium ion power battery in formation stage |
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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 |
Owner name: SHANDONG WINA GREEN POWER TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG WEINENG ENVIRONMENTAL PROTECTION POWER SUPPLY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 262703 Dongcheng Industrial Zone, Shouguang City, Shandong Patentee after: SHANDONG WINA GREEN POWER TECHNOLOGY CO., LTD. Address before: 262703 Dongcheng Industrial Zone, Shouguang City, Shandong Patentee before: SHANDONG WINA GREEN POWER CO., LTD. |
|
| 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: 20141210 Termination date: 20190108 |