CN201392389Y - Simulated battery - Google Patents
Simulated battery Download PDFInfo
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- CN201392389Y CN201392389Y CN200820212220U CN200820212220U CN201392389Y CN 201392389 Y CN201392389 Y CN 201392389Y CN 200820212220 U CN200820212220 U CN 200820212220U CN 200820212220 U CN200820212220 U CN 200820212220U CN 201392389 Y CN201392389 Y CN 201392389Y
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- plate
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- positive
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Abstract
A simulated battery comprises a closed and insulated battery case, a positive plate (3), a negative plate (4) and electrolyte, wherein the battery case comprises a cuboid-shaped case (1) and a transparent cover plate (2); the positive plate (3), the negative plate (4) and the electrolyte are accommodated outside the case; the case is provided with a positive pole (5) and a negative pole (6); the positive plate (3) and the negative plate (4) are respectively and electrically connected with the positive pole (5) and the negative pole (6), and are fixed on the case (1), and the negative plate (4) and the positive plate (3) are not in contact. The simulated battery can simulate the working state of the battery, and since the simulated battery is provided with the transparent cover plate, the inside condition of the battery cell under testing can be convenient to observe in real time, in addition, the simulated battery is convenient to assemble and dismantle, and can be reused, thus reaching the cost-saving goal.
Description
Technical field
The utility model relates to the simulated battery device.
Background technology
We often need test every performance of battery.Especially along with the developing rapidly of electronics industry and information industry, human more and more higher to the power requirement of electric product, and secondary cell is widely used as the power supply of electric product, so secondary cell becomes the research object of vast researcher.People mainly concentrate on the research of manufacture craft of positive and negative electrode starting material, barrier film, electrolytic solution and the electric core of secondary cell to the research of secondary cell.And a kind of new electric core material or the manufacture craft of electric core want to be applied, and then need the finished product battery is carried out a large amount of electric performance tests.At present, people directly make every electrical property that finished product electricity core comes test battery on production line, to reach the purpose of electric core material of checking and electric core production process.But directly make finished product electricity core on production line, owing to be to produce in batches, so need a large amount of experiment starting material, fabrication cycle is long, thereby has delayed production, has wasted production cost.In addition, because the metal shell of finished product electricity core all is welded to electric core and gets on, so want to split electric core so that the electrode material of the electric in-core portion after the test is studied relatively difficulty, and, because battery case is airtight, nontransparent housing, so can't Real Time Observation battery internal reaction situation, in different phase dendritic growth situation, be unfavorable for studying the inner case when battery operated as electrode slice.
The utility model content
The purpose of this utility model provides a kind of simulated battery of being convenient to observe the inside battery situation.
The utility model provides a kind of simulated battery, comprises the battery case of a sealing, insulation, positive plate plate, negative plate plate, electrolytic solution; Battery case comprises the housing and the transparent cover plate of the cuboid of an opening; Described positive plate plate, negative plate plate, electrolytic solution are contained in the shell; Be provided with positive pole, negative pole on shell, positive plate plate, negative plate plate are connected with anodal, negative electricity respectively, and described negative plate plate, positive plate plate are fixed on the described housing, do not contact between negative plate plate, the positive plate plate.The simulated battery that adopts the utility model to provide can be observed battery interior change in experimental situation by transparent cover plate, by placing this device to realize the purpose of real-time monitored inside battery situation the electrode slice plate.And because this device is convenient to dismounting, institute is so that study the electrode material of the electric in-core portion after testing, for the research that discharges and recharges mechanism of electrode material is provided convenience.In addition, because this device is convenient to dismounting, thus can reuse, thus reached cost-effective purpose.
Description of drawings
The assembling synoptic diagram of the simulated battery device that provided among the utility model embodiment 1 is provided Fig. 1;
The cut-open view of the simulated battery device that provided among the utility model embodiment 1 is provided Fig. 2;
The assembling synoptic diagram of the simulated battery device that provided among the utility model embodiment 2 is provided Fig. 3;
The cut-away view of the simulated battery device that provided among the utility model embodiment 2 is provided Fig. 4;
Embodiment
The utility model provides a kind of simulated battery, comprises the battery case of a sealing, insulation, positive plate plate 3, negative plate plate 4, electrolytic solution; Battery case comprises the housing 1 and the transparent cover plate 2 of the cuboid of an opening, and described positive plate plate 3, negative plate plate 4, electrolytic solution are contained in the shell; Be provided with positive pole 5, negative pole 6 on shell, positive plate plate 3, negative plate plate 4 are electrically connected with positive pole 5, negative pole 6 respectively, and described negative plate plate 4, anode pole piece 3 are fixed on the described housing 1, between negative plate plate 4, the positive plate plate 3 spacing are arranged.
The insulation shell that housing 1 is made up of four sides and a bottom surface, case material can be the engineering plastics housings of acid-fast alkali-proof, select for use polytetrafluoroethylmaterial material as case material under the preferable case, and teflon is the polymkeric substance of tetrafluoroethene.English abbreviation is PTFE.Chinese trade name " Teflon ", " Teflon ", " Te Fulong ", " safe fluorine dragon " etc.It is by the macromolecular compound of tetrafluoroethene through being polymerized, and has excellent chemical stability, corrosion resistance, sealing, high lubricated not viscosity, electrical insulating property and good anti-aging endurance.Can long-term work under+250 ℃ to-180 ℃ temperature, generally be applied to the higher corrosion resistant pipeline of performance requirement, container, pump, valve and system radar, high frequency Communication Equipment, radio component parts etc.Because polytetrafluoroethylmaterial material has excellent decay resistance, and working temperature is within the cell safety working range, so select for use polytetrafluoroethylmaterial material as the simulated battery case material.The wall thickness of described housing 1 can be 3-5mm, is preferably 3.5-4mm, and the length of housing is that 32-52mm highly is 75-85mm for the 170-220mm width.
Described transparent cover plate 2 is used for shell 1 is observed the inside battery situation, because battery is in the mistake charge and discharge cycles process that discharges and recharges, form Li dendrite easily, cause internal short-circuit of battery, for can be under simulated battery real work condition, the growing state of Real Time Observation dendrite, the gas production of electrode slice plate in the charge and discharge process is so cover plate is a transparent cover plate.Described transparent cover plate 2 can be made of transparent, acidproof, alkaline-resisting material, selects quartz glass under the preferable case.The size of transparent cover plate and the bottom surface of housing measure-alike, the thickness of transparent panel is 5mm.
Positive plate plate and negative plate plate all have base material and coated side to constitute, wherein coated side be arranged at the positive plate plate relative with the negative plate plate two faces on, the thickness of coated side is 0.1-0.2mm.
Positive plate plate, negative plate plate, electrolytic solution are contained in the shell, and consisting of of positive plate plate is as well known to those skilled in the art.In general, the positive plate plate comprises conducting base and is coated in positive electrode active materials on the conducting base (also being collector body).Described conducting base is as well known to those skilled in the art, can be selected from aluminium flake as conducting base; Described positive electrode active materials is as well known to those skilled in the art, and it comprises positive active material and bonding agent, and described positive active material can be selected from known positive active material in the lithium ion battery field, as LiCoO
2, LiFePO
4, LiMnO
2Deng, described bonding agent also is as well known to those skilled in the art, as polyvinylidene fluoride (PVDF) etc., in general, the content of bonding agent is the 0.01-8 weight % of positive active material, be preferably 1-5 weight %, described positive electrode active materials can also comprise anodal auxiliary agent, the kind and the content of anodal auxiliary agent are as well known to those skilled in the art, anodal auxiliary agent is selected from conductive agent, at least a as in acetylene black, conductive carbon black and the electrically conductive graphite, its content is the 0-15 weight % of positive active material, is preferably 0-10 weight %.
Consisting of of negative plate plate is as well known to those skilled in the art, and in general, the negative plate plate comprises conducting base and coating and/or is filled in negative active core-shell material on the conducting base.Described conducting base is as well known to those skilled in the art, is selected from copper sheet as conducting base; Described negative active core-shell material is as well known to those skilled in the art, and it comprises negative electrode active material and bonding agent, and described negative electrode active material can be selected from lithium ion battery negative electrode active material commonly used, as native graphite, Delanium etc.Described bonding agent also is as well known to those skilled in the art, and as polyvinylidene fluoride (PVDF), polyvinyl alcohol (PVA) etc., in general, the content of bonding agent is the 0.01-10 weight % of negative electrode active material, is preferably 1-9 weight %.
Bottom surface in the housing 1 is provided with the draw-in groove that is complementary with electrode slice plate shape, when the degree of depth of draw-in groove is the 5-10mm assembling above-mentioned positive plate plate 3, negative plate plate 4 are put into draw-in groove, spacing is arranged between the draw-in groove, thereby the short circuit of having avoided two pole piece plates to take place because of contact, the distance between the draw-in groove is 1-2mm.
For making cover plate tight with being connected of housing, sealing is provided with O-ring seal, compacting fully between cover plate and housing, and the O-ring seal that is adopted is this area fluid sealant commonly used as silica gel, rubber.Also can adopt on housing and cover plate surface of contact threaded hole is set, in the corresponding position of cover plate connecting hole is set, passes through then, nut is connected cover plate with housing, in order further to improve seal degree, can be with applying fluid sealant on the surface of contact of cover plate and housing.
Described electrolytic solution is the general electrolytic solution in this area, as ethylene carbonate (EC), diethyl carbonate (DEC), dimethyl carbonate (DMC) (99.5%, H
2The massfraction of O is less than 5 * 10
-5, (Zhangjiagang Cathay China Rong Huagong), LiPF
6Lithium salts (99.9%, day Benson field chemistry company limited) is mixed with 1mol/L LiPF
6/ (EC+DEC) (mass ratio is 1: 1), 1mol/L LiPF
6/ (EC+DMC) (mass ratio is 1: 1), 1mol/L LiPF
6/ (EC+DEC+DMC) solution of (mass ratio is 1: 1: 1).
Among the present invention, can be provided with a positive pole, a negative pole by shell, positive plate plate, negative plate plate are respectively equipped with thread groove, anodal, negative pole is respectively aluminum and long nut made of copper, with thread groove anodal, that the negative pole nut screws in positive plate plate and negative plate plate respectively, can realize conducting.Nut is provided with silica gel sealing ring, with the sealing effectiveness of assurance device.
The simulated battery that is provided among the present invention, can also be that shell is provided with two positive poles, two negative poles, positive plate plate, negative plate plate are respectively equipped with thread groove, anodal, negative pole is respectively aluminum and long nut made of copper, with thread groove anodal, that the negative pole nut screws in positive plate plate and negative plate plate respectively, can realize conducting.Can also on nut, be provided with silica gel sealing ring, to improve the sealing effectiveness of device.
Simulated battery above-mentioned can also comprise two spring braces.
The following examples are described further the utility model.
The simulated battery device that present embodiment explanation the utility model provides.
Simulated battery as shown in Figure 1, a kind of simulated battery comprises the battery case of a sealing, insulation, positive plate plate 3, negative plate plate 4, electrolytic solution; Battery case comprises the housing 1 and the transparent cover plate 2 of the cuboid of an opening; Described positive plate plate 3, negative plate plate 4, electrolytic solution are contained in the shell; Be provided with a positive pole 5, a negative pole 6 on shell, positive plate plate 3, negative plate plate 4 are electrically connected with anodal 5, negative pole 6 respectively, and described negative plate plate 4, anode pole piece 3 are fixed on the described housing 1, and negative plate plate 4, positive plate plate 3 do not contact.The preparation simulated battery comprises following step:
(1) Zheng Ji preparation
Positive active material LiCoO with 100 parts of weight
2, the conductive agent acetylene black of 5 parts of weight, 5 parts of weight cementing agent PVDF join among the NMP of 50 parts of weight and evenly mix, it is coated in equably on the face that is of a size of 150 * 50 millimeters on the aluminium flake that is of a size of 170 * 60 * 20 millimeters then, and put it in the vacuum oven after 120 ℃ of baking dryings, obtain the positive plate plate, the positive active material LiCoO on this positive plate plate
2Content is 6.4 grams.
(2) preparation of negative pole
The cementing agent PVDF of the negative electrode active material Delanium of 100 parts of weight, 9 parts of weight is joined among the NMP of 50 parts of weight and evenly mix, it is coated in equably on the face that is of a size of 152 * 52 millimeters on the copper sheet that is of a size of 170 * 60 * 20 millimeters then, and put it in the vacuum oven after 120 ℃ of baking dryings, the negative electrode active material Delanium content on the negative plate is 2.85 grams.
(3) preparation of simulated battery
The negative plate plate that (1) is obtained, the positive plate plate that (2) obtain are respectively charged in the draw-in groove in the housing 1, be connected with the thread groove of positive plate plate, negative plate plate with nut anodal, negative pole respectively, the degree of depth of each groove is 20mm, diameter of screw is 5mm, the length of positive and negative electrode nut is 25mm, and diameter is 5mm.Add electrolytic solution (1mol/L LiPF
6/ (EC+DEC+DMC) solution of (mass ratio is 1: 1: 1)), glass cover-plate is installed on the shell aperture place, seal with fluid sealant at glass cover-plate and housing contact position, wherein glass cover-plate is of a size of: 200 * 50 * 5 millimeters, housing is of a size of 200 * 50 * 80 millimeters, the thickness of housing is 5 millimeters, and the thickness of fluid sealant is 3mm.
Through above-mentioned steps, obtain simulated battery sample A1, prepare 50 in sample according to above-mentioned method.
Method according to embodiment 1 prepares simulated battery, and different is, shell is provided with two positive poles, two negative poles, and anodal, negative pole is connected with the thread groove that positive plate plate, negative plate plate two ends are provided with, and realizes conducting.
The final simulated battery sample A2 that obtains prepares 50 in sample according to above-mentioned method.
Comparative Examples 1
According to the positive electrode, negative material, the electrolytic solution that are adopted among the embodiment 1, according to common preparation method of lithium ion battery, preparation battery sample C1, according to above-mentioned method, 50 of preparation battery samples.
Present embodiment is used for every performance of the prepared simulated battery of test implementation example 1-2.
The project of electric performance test comprises: capacity restoration rate after capacity sustainment rate and the battery high-temperature storage after capacity sustainment rate, battery high-temperature storage back leakage cell number, battery high-temperature stored after leakage cell number, battery circulation back leakage cell number, battery circulated after battery changed into.Wherein, the test result of loop test is listed in the table 1, and the test result of high-temperature storage test is listed in the table 2.
Method of testing is as follows:
Above-mentioned 50 batteries are changed into, chemical synthesizing method is as follows: under 23 ℃ of conditions, respectively battery is lied prostrate with 0.4C electric current charging battery to 4.2, rise to 4.2 volts of backs with constant-potential charge at voltage, cut-off current is 0.05C, and then lies prostrate with the current discharge to 3.0 of 0.2C.
Appoint 25 batteries getting after changing into to carry out loop test, method of testing is as follows: under 23 ℃ of conditions, respectively battery is lied prostrate with 1C current charges to 4.2, rise to 4.2 volts of backs with constant-potential charge at voltage, cut-off current is 0.05C, shelves 10 minutes; Battery was shelved 5 minutes with 1C current discharge to 3.0 volt.Circulate altogether 100 times according to above-mentioned steps.
Circulation back capacity sustainment rate=(the n time cyclic discharge capacity/cyclic discharge capacity) first * 100%;
Wherein, n is the number of times of circulation discharge.
25 remaining batteries are carried out the high-temperature storage test, and method of testing is as follows: the first step, under 23 ℃ of conditions, respectively battery is lied prostrate with 1C current charges to 4.2, and rise to 4.2 volts of backs with constant-potential charge at voltage, cut-off current is 0.05C; In second step, the battery that will be full of electricity was positioned in 85 ℃ the environment 48 hours; In the 3rd step, under 23 ℃ of conditions, the battery after storing is lied prostrate with 1C current discharge to 3.0; The 4th step under 23 ℃ of conditions, with 1C current charges to 4.2 volt, rose to 4.2 volt backs with constant-potential charge at voltage with the battery after the discharge, and cut-off current is 0.05C, shelves 10 minutes, and battery was shelved 5 minutes with 1C current discharge to 3.0 volt.Press the 4th step cycle that goes on foot 3 times.
Store back capacity sustainment rate=(storing the preceding battery capacity of back battery remaining power/storage) * 100%;
Store back capacity restoration rate=(the preceding battery capacity of round-robin discharge capacity/storage for the third time after the storage) * 100%.
The project of electric performance test comprises: battery circulation back capacity sustainment rate, battery high-temperature store back capacity sustainment rate and battery high-temperature storage back capacity restoration rate.Wherein, the test result of loop test is listed in the table 1, and the test result of high-temperature storage test is listed in the table 2.
Comparative Examples 2
This Comparative Examples is used for every performance of test comparison example 1 prepared cell sample, and wherein, method of testing is identical with the method for testing described in the embodiment 3.
Table 1
| The | Embodiment | 1 | |
Comparative Examples 1 |
| Average size sustainment rate after 10 times circulates | 98.3％ | 98.1％ | 98.0％ | |
| Average size sustainment rate after 50 times circulates | 97.2％ | 97.1％ | 97.5％ | |
| Average size sustainment rate after 100 times circulates | 96.6％ | 97.8％ | 97.1％ |
Table 2
| The | Embodiment | 1 | |
Comparative Examples 1 |
| Store back average size sustainment rate | 68.9％ | 66.8％ | 69.1％ | |
| Store back average size recovery rate | 75.8％ | 76.3％ | 76.2％ |
From table 1, table 2 as can be seen, comparing embodiment 1 and Comparative Examples 1, the device that adopts the utility model to provide is tested every electrical property of electric core, its test result and the test result basically identical of electric core being made battery, so the simulated battery device that the utility model provides is the working environment of simulated battery fully, every electrical property to battery is tested, and can observe the inner case of battery when working easily by simulated battery that the utility model provides.
Claims (11)
1, a kind of simulated battery is characterized in that comprising a sealing, the battery case that insulate, positive plate plate (3), negative plate plate (4), electrolytic solution; Battery case comprises the housing (1) and the transparent cover plate (2) of the cuboid of an opening; Described positive plate plate (3), negative plate plate (4), electrolytic solution are contained in the shell; On shell, be provided with positive pole (5), negative pole (6), positive plate plate (3), negative plate plate (4) are electrically connected with anodal (5), negative pole (6) respectively, described negative plate plate (4), anode pole piece (3) are fixed on the described housing (1), and negative plate plate (4), positive plate plate (3) do not contact.
2, simulated battery as claimed in claim 1, it is characterized in that comprising four sides that one bottom surface, bottom surface are provided with two draw-in grooves with electrode slice plate form fit at described housing (1), spacing is arranged between the draw-in groove, and negative plate plate (4), positive plate plate (3) are fixed in the draw-in groove.
3, simulated battery as claimed in claim 2, wherein, described draw-in groove spacing is 1-2mm.
4, battery as claimed in claim 1, wherein, positive plate plate, negative plate plate constitute by base material and coated side, described coated side is arranged on positive plate plate two faces relative with the negative plate plate, and wherein the height of base material is that the thickness of 20mm applicator surface is 0.1-0.2mm for 60mm length for the 170mm width.
5, simulated battery as claimed in claim 1 is characterized in that, shell is provided with a positive pole, a negative pole.
6, battery as claimed in claim 5, it is characterized in that described battery also comprises, two spring braces, be respectively equipped with thread groove on positive plate plate, the negative plate plate, just very aluminum nut, negative pole are nut made of copper, with thread groove anodal, that negative pole screws in positive plate plate and negative plate plate respectively, realize conducting, the degree of depth of thread groove is 20mm, the diameter of screw thread is 5mm, and the length of the nut of positive pole, negative pole is 25mm, and diameter is 5mm.
7, simulated battery as claimed in claim 1 is characterized in that shell is provided with two positive poles, two negative poles.
8, simulated battery as claimed in claim 7, it is characterized in that, be respectively equipped with thread groove on positive plate plate, the negative plate plate, just very aluminum nut, negative pole are nut made of copper, with thread groove anodal, that negative pole screws in positive plate plate and negative plate plate respectively, realize conducting, the degree of depth of thread groove is 20mm, the diameter of screw thread is 5mm, and the length of the nut of positive pole, negative pole is 25mm, and diameter is 5mm.
9, simulated battery as claimed in claim 1 is characterized in that, the wall thickness of housing is the 3-5 millimeter, and the length of housing is that 32-52mm highly is 75-85mm for the 170-220mm width.
10, simulated battery as claimed in claim 1, wherein the bottom surface of the size of transparent cover plate (2) and housing (1) is measure-alike, and thickness is 5mm.
11, simulated battery as claimed in claim 10 is characterized in that described transparent cover plate is a glass cover-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820212220U CN201392389Y (en) | 2008-09-24 | 2008-09-24 | Simulated battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820212220U CN201392389Y (en) | 2008-09-24 | 2008-09-24 | Simulated battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392389Y true CN201392389Y (en) | 2010-01-27 |
Family
ID=41599210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820212220U Expired - Lifetime CN201392389Y (en) | 2008-09-24 | 2008-09-24 | Simulated battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392389Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424227A (en) * | 2012-05-22 | 2013-12-04 | 万向电动汽车有限公司 | Method for controlling heat sealing quality of aluminum plastic film soft package battery |
| CN109143086A (en) * | 2018-07-24 | 2019-01-04 | 格林美股份有限公司 | A kind of lithium battery performance testing device |
-
2008
- 2008-09-24 CN CN200820212220U patent/CN201392389Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424227A (en) * | 2012-05-22 | 2013-12-04 | 万向电动汽车有限公司 | Method for controlling heat sealing quality of aluminum plastic film soft package battery |
| CN103424227B (en) * | 2012-05-22 | 2016-08-17 | 万向电动汽车有限公司 | A kind of aluminum plastic film soft-package battery hot sealing process control method |
| CN109143086A (en) * | 2018-07-24 | 2019-01-04 | 格林美股份有限公司 | A kind of lithium battery performance testing device |
| CN109143086B (en) * | 2018-07-24 | 2021-02-19 | 格林美股份有限公司 | Lithium battery performance testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |