CN205581220U - Lithium ion battery electrode material electrical performance test device - Google Patents
Lithium ion battery electrode material electrical performance test device Download PDFInfo
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- CN205581220U CN205581220U CN201620116896.4U CN201620116896U CN205581220U CN 205581220 U CN205581220 U CN 205581220U CN 201620116896 U CN201620116896 U CN 201620116896U CN 205581220 U CN205581220 U CN 205581220U
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Abstract
The utility model provides a lithium ion battery electrode material electrical performance test device, including awaiting measuring button cell, the button cell that awaits measuring includes battery negative pole shell, the anodal shell of battery, conductive buffer layer negative pole piece, the positive plate that awaits measuring, the spacing piece of negative pole, electrolyte and diaphragm, and the spacing piece of conductive buffer layer and negative pole is located between battery negative pole shell and the anodal shell of battery, and conductive buffer layer laminates in battery negative pole shell, the negative pole piece and the positive plate that awaits measuring are located between spacing piece of negative pole and the anodal shell of battery, and the spacing piece of negative pole is provided with first constant head tank, and the negative pole piece is located first constant head tank, and the anodal shell of battery is provided with the second constant head tank, and the positive plate that awaits measuring is located the second constant head tank, and the diaphragm is located the negative pole piece and awaits measuring between the positive plate, all has electrolyte between spacing piece of negative pole and the diaphragm and between anodal spacing piece and the diaphragm. This testing arrangement has simplified the structure of the battery that awaits measuring, and simple manufacture has simplified the manufacture craft of the battery that awaits measuring before the full battery test, has saved the cost.
Description
Technical field
This utility model relates to electrode material performance of lithium ion battery technical field of measurement and test, in particular to a kind of lithium ion battery electrode material electric performance testing device.
Background technology
Half-cell test or full battery testing is mainly used during lithium ion battery test.At present, the electrode material electrical performance evaluation of domestic and international lithium ion battery usually uses button cell (half-cell, i.e. be metal Li to electrode), is widely used because its method of testing is easy, cost is relatively low.
Inventor finds under study for action, at least has a disadvantage in that when using lithium ion battery test in prior art
One, half-cell are tested compared with full battery testing, and it lacks cycle performance test, high/low temperature test and true capacity and plays the assessment of test.And full battery testing, its complex process, relatively costly, general battery material producer seldom carries out full battery performance test, is often carried out Performance Evaluation by its client, and such assessment cycle is the longest, and an assessed cost is higher；
Two, during conventional full battery performance test, need to use substantial amounts of raw material, including aluminium foil, Copper Foil, lug, adhesive tape, battery case etc.；Equipment needed thereby is the most more simultaneously, and complicated, includes lug welder, up-coiler, Laser Welding, banding machine etc.；Corresponding supplementary material consumption is the biggest；Because complex process, the waste that in manufacturing process, defective products causes also is compared many.
Utility model content
The purpose of this utility model is to provide a kind of lithium ion battery electrode material electric performance testing device, to improve the problem that existing lithium ion battery electrode material uses full battery testing test technology complexity, waste of material is many, cost is high.
This utility model is achieved in that
Based on above-mentioned purpose, this utility model provides a kind of lithium ion battery electrode material electric performance testing device, including button cell to be measured, described button cell to be measured includes battery cathode shell and anode shell, conductive buffer layer and the negative pole banking stop being oppositely arranged, wherein:
Described conductive buffer layer and described negative pole banking stop are between described battery cathode shell and described anode shell, and described conductive buffer layer fits in described battery cathode shell, and described negative pole banking stop fits in described conductive buffer layer；Described lithium ion battery electrode material electric performance testing device also includes negative plate, barrier film, electrolyte and positive plate to be measured, described negative plate and described positive plate to be measured are between described negative pole banking stop and described anode shell, it is provided with the first locating slot on described negative pole banking stop, described negative plate is positioned at described first locating slot, it is provided with the second locating slot on described anode shell, described positive plate to be measured is positioned at described second locating slot, described barrier film is arranged between described negative plate and described positive plate to be measured, it is respectively provided with described electrolyte between described negative pole banking stop and described barrier film and between described positive plate to be measured and described barrier film.
Preferably, described first locating slot is provided in round groove, correspondence, and described second locating slot is provided in round the axial line conllinear of groove, the axial line of described first locating slot and described second locating slot.
Preferably, the groove depth of described second locating slot is not more than the thickness of described positive plate to be measured.
Preferably, described battery cathode shell has rounded groove, and described conductive buffer layer is positioned at described groove.
Preferably, being provided with sealing ring at the notch of described groove, described sealing ring is fixing with described battery cathode shell to be connected.
Preferably, described anode shell has rounded mounting groove, and described second locating slot is positioned at the bottom land of described mounting groove.
Preferably, described anode shell is contained on described battery cathode shell by described mounting groove lid.
Preferably, the thickness of described positive plate to be measured is 0.10mm-0.15mm.
Preferably, described sealing ring is rubber ring.
The beneficial effects of the utility model are:
In sum, this utility model embodiment provides a kind of lithium ion battery electrode material electric performance testing device, this test apparatus structure advantages of simple, processing and fabricating is convenient, cost of manufacture is low, simultaneously, this test device can directly use full battery testing mode to carry out the detection of battery electrode material performance, greatly simplify the structure of mesuring battary, simplify the processing technology of mesuring battary before full battery detecting, simplify mesuring battary structure in detection project the most simultaneously, save testing cost.Specific as follows:
This test device includes button cell to be measured, and original button cell directly carries out transformation processing, will original button cell transform after form button cell to be measured, low cost of manufacture, easy to process.Button cell to be measured includes battery cathode shell and anode shell, conductive buffer layer and negative pole banking stop it is sequentially installed with in negative battery shell, in negative pole banking stop, negative plate is installed, positive plate to be measured is installed on anode shell, between negative plate and positive plate to be measured, there is electrolyte, simultaneously, between negative plate and positive plate to be measured, there is barrier film, button cell to be measured is defined after battery cathode shell and anode shell being fastened, the simple in construction of button cell to be measured, easy to process, easy to make, the low cost of detection.Button cell to be measured is directly used in full battery detecting, and the data that detection obtains are more comprehensive.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 is the structure chart of this utility model lithium ion battery electrode material electric performance testing device；
Fig. 2 is the structure chart of the negative pole banking stop of this utility model lithium ion battery electrode material electric performance testing device；
Fig. 3 is the structure chart of the anode shell of this utility model lithium ion battery electrode material electric performance testing device.
Reference collects:
Button cell 100 to be measured,
Battery cathode shell 101, anode shell 102, conductive buffer layer 103, negative pole banking stop 104, negative plate 105, positive plate 106 to be measured, barrier film 107, sealing ring 108,
First locating slot 201, the second locating slot 202.
Detailed description of the invention
Half-cell is tested compared with full battery testing, and it lacks cycle performance test, high/low temperature test and true capacity and plays the assessment of test.And full battery testing, its complex process, relatively costly, general battery material producer seldom carries out full battery performance test, is often carried out Performance Evaluation by its client, and such assessment cycle is the longest, and an assessed cost is higher；During conventional full battery performance test, need to use substantial amounts of raw material, including aluminium foil, Copper Foil, lug, adhesive tape, battery case etc.；Equipment needed thereby is the most more simultaneously, and complicated, includes lug welder, up-coiler, Laser Welding, banding machine etc.；Corresponding supplementary material consumption is the biggest；Because complex process, the waste that in manufacturing process, defective products causes also is compared many.
Given this, designer of the present utility model devises a kind of lithium ion battery electrode material electric performance testing device, this lithium ion battery electrode material electric performance testing device simple in construction, button cell to be measured is obtained by being processed making at former button cell, the simple in construction of button cell to be measured, easy to make, cost of manufacture is low, the button cell to be measured that making obtains can be directly used for full battery testing mode and detects, more comprehensively, reliably, the use of battery is safer for the battery data that detection obtains.
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of this utility model embodiment that illustrate described in accompanying drawing herein.Therefore, the detailed description to the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model below, but is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms in following accompanying drawing, therefore, the most a certain Xiang Yi accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In this utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include that fisrt feature directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " include that fisrt feature immediately below second feature and obliquely downward, or is merely representative of fisrt feature level height less than second feature.
Refer to Fig. 1-3, present embodiments provide a kind of lithium ion battery electrode material electric performance testing device, including button cell 100 to be measured, described button cell to be measured 100 includes battery cathode shell 101 and the anode shell 102 being oppositely arranged, conductive buffer layer 103 and negative pole banking stop 104, button cell 100 to be measured can directly be processed transforming on original button cell, save manufacturing cost, process more convenient, add man-hour simple to operate, the model of button cell is multiple, on-demand select, carry out selecting according to mesuring battary electrode material, it is preferably arranged to, CR2025 type button cell is used to carry out the making of button cell 100 to be measured.Before carrying out button cell 100 to be measured and assembling, first positive plate 106 to be measured and negative plate 105 are installed in button cell 100 to be measured, and then the button cell to be measured 100 making to make is full battery, can directly use full battery detection method to detect.Concrete:
Described conductive buffer layer 103 and described negative pole banking stop 104 are between described battery cathode shell 101 and described anode shell 102, described conductive buffer layer 103 fits in described battery cathode shell 101, and described negative pole banking stop 104 fits in described conductive buffer layer 103；Described lithium ion battery electrode material electric performance testing device also includes negative plate 105, barrier film 107 and positive plate to be measured 106, described negative plate 105 preferably employs the electrode that lithium material is made, the employing of described barrier film 107 preferably employs the high-molecular porous material such as PP, PE and makes, in charge and discharge process, it is simple to the lithium ion in electrolyte can pass barrier film 107.
Term " first ", " second " are only used for describing purpose, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
nullDescribed negative plate 105 and described positive plate to be measured 106 are between described negative pole banking stop 104 and described anode shell 102，The first locating slot 201 it is provided with on described negative pole banking stop 104，Described negative plate 105 is positioned at described first locating slot 201，The second locating slot 202 it is provided with on described anode shell 102，Described positive plate to be measured 106 is positioned at described second locating slot 202，By arranging the first locating slot 201 on negative pole banking stop 104 and being configured to two locating slots on anode shell 102，Negative plate 105 and the location of positive plate 106 to be measured when being easily installed，First locating slot 201 determines with the position of the second locating slot 202，Negative plate 105 is installed on the first locating slot 201，Positive plate 106 to be measured is installed on the second locating slot 202，After installing，Negative plate 105 and positive plate 106 to be measured i.e. achieve location，During installation convenient to operation，Carry out during the experiment of full battery detecting the data that obtain more accurately and reliably.Actual adding man-hour, negative plate 105 matches with the size of the first locating slot 201, and after i.e. negative plate 105 is placed on the first locating slot 201, negative plate 105 is clamped in the first locating slot 201, and negative plate 105 will not slide in the first locating slot 201；Positive plate 106 to be measured preferably employs and arranges coating on aluminium foil and make, and this coating is that electrode material to be measured is made, and carries out smearing relative to the one side of negative plate 105 at positive plate 106 to be measured.Corresponding, the electrode material on negative plate 105 can be arranged on the negative plate 105 one side relative to positive plate 106 to be measured.The test of electrode material performance of lithium ion battery, the positive electrode mainly for battery tests, and therefore, the material that the positive plate to be measured 106 on anode shell 102 is smeared is electrode material to be measured.
Described barrier film 107 is arranged between described negative plate 105 and described positive plate to be measured 106, is respectively provided with electrolyte between described negative pole banking stop 104 and described barrier film 107 and between described positive pole banking stop and described barrier film 107.Negative plate 105 is separated by barrier film 107 with positive plate 106 to be measured, and barrier film 107 both sides have electrolyte respectively, and electrolyte is lithium-ion electrolyte, and in carrying out charge and discharge process, the lithium ion in electrolyte can pass barrier film 107.
Referring to Fig. 2 and Fig. 3, in the preferred version of this embodiment, described first locating slot 201 is provided in round groove, correspondence, and described second locating slot 202 is provided in round the axial line conllinear of groove, the axial line of described first locating slot 201 and described second locating slot 202.Circular trough is easy to processing, and after the home position of circular trough determines, the diameter of adjustment tank, it is simple to the first locating slot 201 and the second locating slot 202 add the accuracy of position in man-hour, after completion of processing, the first locating slot 201 is corresponding more accurate with the position of the second locating slot 202；Meanwhile, negative plate 105 being processed as with positive plate 106 to be measured the toroidal matched with the first locating slot 201 and the second locating slot 202, when negative plate 105 simulates the structure of full battery with positive plate 106 to be measured, similarity degree is higher, and the structure of measurement is more accurate.Man-hour is added actual, the diameter of negative plate 105 is more than the diameter of positive plate 106 to be measured, such as, during a diameter of 15.5mm of negative plate 105, a diameter of 15mm of positive plate 106 to be measured, and coordinating of a diameter of 15.5mm of the first locating slot 201, a diameter of 15mm of the second locating slot 202, negative plate 105 and positive plate to be measured 106 and the first locating slot 201 and the second locating slot 202 is tightr.
In the preferred version of this embodiment, the groove depth of described second locating slot 202 is not more than the thickness of described positive plate to be measured 106, positive plate 106 to be measured and negative plate 105 carry out needing during discharge and recharge to interact, lithium ion in absorption electrolyte, in order to ensure being normally carried out of charge and discharge process, the thickness of positive plate 106 to be measured is more than groove depth.The thin slice of the preferably circular shape of positive plate 106 to be measured, its thickness direction is along its axis direction, is preferably arranged to, and the thickness of positive plate 106 to be measured is 0.10-0.15mm, actual adds man-hour, and the thickness of positive plate the most to be measured is 0.10mm.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the equipment of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
In the preferred version of this embodiment, described battery cathode shell 101 has rounded groove, and described conductive buffer layer 103 is positioned at described groove, it is simple to the placement of conductive buffer layer 103, conductive buffer layer 103 is difficult to, relative to battery cathode shell 101, change in location occurs, and buffering effect is more preferable.
In the preferred version of this enforcement, sealing ring 108 it is provided with at the notch of described groove, described sealing ring 108 is fixing with described negative battery shell to be connected, storing electrolyte between battery cathode shell 101 and anode shell 102, electrolyte is necessary medium in battery charge and discharge process, therefore, in order to ensure being smoothed out of detection, improving the accuracy of detection, arrange sealing ring 108 at notch, electrolyte not easily runs off.Being preferably arranged to, described sealing ring is rubber ring, and easy to process, cost of manufacture is low, good sealing effect.
In the preferred version of this embodiment, described anode shell 102 has rounded mounting groove, described second locating slot 202 is positioned at the bottom land of described mounting groove, anode shell 102 and battery cathode shell 101 mutually fasten formation cavity, conductive buffer layer 103, negative pole banking stop 104, negative plate 105 and positive plate to be measured 106 are positioned at this cavity, compact conformation.
In the preferred version of this embodiment, described anode shell 102 is contained on described battery cathode shell 101 by described mounting groove lid, and the structure of anode shell 102 is simpler, it is simple to processes and is easy to lid and is contained on battery cathode shell 101.
Lithium ion battery electrode material electric performance test battery production method embodiment
Present embodiments provide a kind of battery production method, including button cell 100 to be measured, negative plate 105 and positive plate to be measured 106, described button cell to be measured 100 includes battery cathode shell 101 and the anode shell 102 being oppositely arranged, being provided with negative pole banking stop 104 between anode shell 102 and battery cathode shell 101, the method comprises the steps:
Described negative pole banking stop 104 is processed the first locating slot 201, negative plate 105 is installed in described first locating slot 201, described positive pole banking stop is processed the second locating slot 202, described positive plate 106 to be measured is installed in described second locating slot 202, then, 0.15ml-0.30ml electrolyte on dripping on positive plate 106 to be measured, is covered in barrier film 107 on positive plate 106 to be measured；Then, negative plate 105 drips 0.15ml-0.30ml electrolyte, more described anode shell 102 is interlocked with described battery cathode shell 101, finally, utilize hydraulic pressure sealing machine anode shell 102 and battery cathode shell 101 to be sealed.This manufacture method is simple and quick, makes the button cell to be measured 100 (full battery) obtained simple and reasonable, and the material required for the making of button cell 100 to be measured is few, and making step is few, greatly reduces the cost of detection.
In the preferred version of this embodiment, described first locating slot 201 and described second locating slot 202 are circular trough, described second locating slot 202 and the axial line conllinear of described first locating slot 201.Circular trough is easy to processing, and after the home position of circular trough determines, the diameter of adjustment tank, it is simple to the first locating slot 201 and the second locating slot 202 add the accuracy of position in man-hour, after completion of processing, the first locating slot 201 is corresponding more accurate with the position of the second locating slot 202；Meanwhile, negative plate 105 being processed as with positive plate 106 to be measured the toroidal matched with the first locating slot 201 and the second locating slot 202, when negative plate 105 simulates the structure of full battery with positive plate 106 to be measured, similarity degree is higher, and the structure of measurement is more accurate.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (9)
1. a lithium ion battery electrode material electric performance testing device, it is characterised in that include battery cathode shell and anode shell, conductive buffer layer and negative pole banking stop that button cell to be measured, described button cell to be measured include being oppositely arranged, wherein:
Described conductive buffer layer and described negative pole banking stop are between described battery cathode shell and described anode shell, and described conductive buffer layer fits in described battery cathode shell, and described negative pole banking stop fits in described conductive buffer layer；Described lithium ion battery electrode material electric performance testing device also includes negative plate, barrier film, electrolyte and positive plate to be measured, described negative plate and described positive plate to be measured are between described negative pole banking stop and described anode shell, it is provided with the first locating slot on described negative pole banking stop, described negative plate is positioned at described first locating slot, it is provided with the second locating slot on described anode shell, described positive plate to be measured is positioned at described second locating slot, described barrier film is arranged between described negative plate and described positive plate to be measured, it is respectively provided with described electrolyte between described negative pole banking stop and described barrier film and between described positive plate to be measured and described barrier film.
Lithium ion battery electrode material electric performance testing device the most according to claim 1, it is characterized in that, described first locating slot is provided in round groove, correspondence, described second locating slot is provided in round the axial line conllinear of groove, the axial line of described first locating slot and described second locating slot.
Lithium ion battery electrode material electric performance testing device the most according to claim 1, it is characterised in that the groove depth of described second locating slot is not more than the thickness of described positive plate to be measured.
Lithium ion battery electrode material electric performance testing device the most according to claim 1, it is characterised in that described battery cathode shell has rounded groove, described conductive buffer layer is positioned at described groove.
Lithium ion battery electrode material electric performance testing device the most according to claim 4, it is characterised in that be provided with sealing ring at the notch of described groove, described sealing ring is fixing with described battery cathode shell to be connected.
Lithium ion battery electrode material electric performance testing device the most according to claim 4, it is characterised in that described anode shell has rounded mounting groove, described second locating slot is positioned at the bottom land of described mounting groove.
Lithium ion battery electrode material electric performance testing device the most according to claim 6, it is characterised in that described anode shell is contained on described battery cathode shell by described mounting groove lid.
Lithium ion battery electrode material electric performance testing device the most according to claim 6, it is characterised in that the thickness of described positive plate to be measured is 0.10mm-0.15mm.
Lithium ion battery electrode material electric performance testing device the most according to claim 7, it is characterised in that described sealing ring is rubber ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620116896.4U CN205581220U (en) | 2016-02-05 | 2016-02-05 | Lithium ion battery electrode material electrical performance test device |
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| CN201620116896.4U CN205581220U (en) | 2016-02-05 | 2016-02-05 | Lithium ion battery electrode material electrical performance test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676031B (en) * | 2016-02-05 | 2018-09-21 | 株洲升华科技有限公司 | Lithium ion battery electrode material electric performance testing device and battery production method |
| CN113125959A (en) * | 2021-03-29 | 2021-07-16 | 蜂巢能源科技(无锡)有限公司 | Battery test auxiliary device and test battery assembling method |
-
2016
- 2016-02-05 CN CN201620116896.4U patent/CN205581220U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676031B (en) * | 2016-02-05 | 2018-09-21 | 株洲升华科技有限公司 | Lithium ion battery electrode material electric performance testing device and battery production method |
| CN113125959A (en) * | 2021-03-29 | 2021-07-16 | 蜂巢能源科技(无锡)有限公司 | Battery test auxiliary device and test battery assembling method |
| CN113125959B (en) * | 2021-03-29 | 2022-07-15 | 蜂巢能源科技(无锡)有限公司 | Battery test auxiliary device and test battery assembling method |
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Effective date of registration: 20170721 Address after: 336000 Yichun economic and Technological Development Zone, Jiangxi Patentee after: Jiangxi sublimated New Material Co Ltd Address before: 412200, Liling City, Hunan Province ceramic science and Technology Industrial Park B District Patentee before: HUNAN SHENGHUA TECHNOLOGY CO., LTD. |