CN109143086A - A kind of lithium battery performance testing device - Google Patents
A kind of lithium battery performance testing device Download PDFInfo
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- CN109143086A CN109143086A CN201810821632.2A CN201810821632A CN109143086A CN 109143086 A CN109143086 A CN 109143086A CN 201810821632 A CN201810821632 A CN 201810821632A CN 109143086 A CN109143086 A CN 109143086A
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- battery
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Abstract
The present invention is suitable for lithium ion battery test device field, a kind of lithium battery performance testing device is provided, first it is assembled into die battery shell, it is again anode by the pole piece for coating active positive electrode material, cathode is lithium piece, using mold battery structure can the DCR quickly to various positive electrodes test, the mold battery production method of test is simple, multiple groups aluminium foil and battery hole can be also set in battery modules, the Active materials of pole piece in every group of battery are different, the performance of lithium batteries more multiple in this way compares more intuitive.The Active materials of the pole piece in every group of battery can also be identical simultaneously, by multiple lithium battery performance tests, is averaged, as a result also more acurrate.
Description
Technical field
The invention belongs to lithium ion battery test device field more particularly to a kind of lithium battery performance testing devices.
Background technique
The internal resistance of cell performance indicator most basic as battery, the size of internal resistance have very important shadow to its performance
It rings.Impedance, the factor of had an impact electron-transport can all influence impedance, and granular size coats situation, adhesion strength, conductive agent
The test method of distribution, etc. usually internal resistance of cell has exchange (AC) method of testing and direct current (DC) method of testing, DC internal resistance test
It is divided into DCR method, MCCF method, HPPC method again.The finished battery that general battery enterprise uses is tested, and positive electrode factory is seldom
There is finished battery detection, even if there is finished battery detection, finished battery fabrication cycle is long, and influence factor is difficult to evaluate anode more
The size of material cladding front and back DCR, common button battery is with regard to being more difficult to carry out DCR test to positive electrode.
Summary of the invention
In view of the above problems, the purpose of the present invention is to provide a kind of lithium battery performance testing devices, it is intended to solve existing
Lithium battery test assembling trouble, the technical problem of test period length.
A kind of lithium battery performance testing device, the concave battery modules including one piece of backing plate and above the backing plate
Frame has been sequentially placed isolation board, sealing film, loading plate and conductive metal sheet in the battery modules frame from bottom to up, described to hold
It is provided with several vertical battery holes on support plate, one piece of aluminium foil is correspondingly arranged below each battery hole, the aluminium foil is located at sealing
Above film and it extend out to outside sealing film, the side plate of left and right two of the battery modules frame is provided with downwards the wire casing of certain depth,
It wears a H-frame pole in the corresponding wire casing in left and right altogether downwards, and the H-frame pole is pierced by the backing plate, then passes through nut check,
Pole piece, two layers of diaphragm, lithium piece, stainless steel plate are disposed in the battery hole from bottom to up, is placed on the stainless steel plate
Spring, the pole piece back side and the aluminium foil are in close contact.
Specifically, being additionally provided with projecting tendon on the sealing film, the projecting tendon is between adjacent aluminium foil.
Specifically, the wire casing on the side plate of the left and right of the battery modules frame two has two, the H-frame pole is corresponding with
Two.
Specifically, the aluminium foil quantity is three, the aluminium foil is rectangle.
Beneficial effects of the present invention: a kind of lithium battery performance testing device provided by the invention is first assembled into mold battery
Shell, then by the pole piece for coating active positive electrode material to be positive, cathode is lithium piece, can be quickly to various using mold battery structure
The DCR of positive electrode is tested, and the mold battery production method of test is simple, and multiple groups aluminium can also be arranged in battery modules
The Active materials of foil and battery hole, the pole piece in every group of battery are different, and the performance of lithium batteries more multiple in this way, comparison is more
Intuitively；Can also be identical by the setting of the Active materials of the pole piece in every group of battery, by multiple lithium battery performance tests, take
Average value, it is as a result also more acurrate.
Detailed description of the invention
Fig. 1 is a kind of overall structure figure of lithium battery performance testing device provided in an embodiment of the present invention；
Fig. 2 is a kind of forward sight structure chart of lithium battery performance testing device provided in an embodiment of the present invention；
Fig. 3 is the concrete structure diagram in battery hole.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
A kind of lithium battery performance testing device, as shown in Figure 1, Figure 2 and Figure 3, including one piece of backing plate 1 and be located at the pad
The concave battery modules frame 2 of the top of plate 1, be sequentially placed in the battery modules frame 2 from bottom to up isolation board 3, sealing film 4,
Loading plate 5 and conductive metal sheet 6, several vertical battery holes 7 are provided on the loading plate 5, and the lower section of each battery hole 7 is corresponding
One piece of aluminium foil 8 is set, and the aluminium foil 8 is located at 4 top of sealing film and extend out to outside sealing film, the left and right of the battery modules frame 2
Two side plates are provided with downwards the wire casing 9 of certain depth, wear a H-frame pole 10, and institute in the corresponding wire casing 9 in left and right altogether downwards
It states H-frame pole 10 and is pierced by the backing plate 1, then locked by nut 11, be disposed with pole from bottom to up in the battery hole 7
Piece 12, two layers of diaphragm 13, lithium piece 14, stainless steel plate 15, place spring 16 on the stainless steel plate 15,12 back side of pole piece with
The aluminium foil 8 is in close contact.
In use, putting into glove box for use after preparing the pole piece for coating active positive electrode material, lithium battery performance being surveyed
Trial assembly is set according to sequence assembling from bottom to up, is put into isolation board, sealing film, loading plate are put into the battery hole of loading plate
Pole piece, the one side of pole piece coating upward, then instill electrolyte, are put into first layer diaphragm, guarantee that diaphragm is completely immersed in electricity
It solves in liquid and bubble-free generates, place into second layer diaphragm, guarantee that pole piece soaks completely and bubble-free generates, be put into lithium later
Piece, lithium piece is face-down, is then placed in stainless steel plate and spring, covers conductive metal sheet, and conductive metal sheet and spring are in close contact,
It is then inserted into H-frame pole, H-frame pole is pierced by the backing plate, finally screws on nut check, the mold battery being completed.It will
The mold battery being completed, which is placed in battery test apparatus after taking out in glove box, to be tested, and pole piece connects with aluminium foil
Touching, aluminium foil, which stretches out outside sealing film, is used as mold anode, and lithium piece is electrically connected by stainless steel plate, spring with conductive metal sheet,
Cathode of the conductive metal sheet as mold battery, connect with battery test apparatus respectively.
As a kind of specific structure of lithium battery performance testing device, as illustrated in fig. 1 and 2, on the sealing film also
It is provided with projecting tendon 17, the projecting tendon 17 is between adjacent aluminium foil 8.On the side plate of left and right two of the battery modules frame
Wire casing 9 have two, the H-frame pole 10 is corresponding with two.8 quantity of aluminium foil is three, and the aluminium foil 8 is rectangle.
Projecting tendon has certain elasticity, both can isolate adjacent aluminium foil, and can also play and further fasten entire mold battery
Effect, increasing friction force avoid two smooth surfaces from generating sliding.Two lines slot corresponds to two H-frame poles, fixing mould electricity
Pond is more firm.Three aluminium foils are set in battery modules as pole piece, there is three groups of batteries, the activity of the pole piece in every group of battery
Material is different, will obtain different positive electrode lithium battery pole slices, such as nickel cobalt manganese pole piece, nickel cobalt aluminium pole piece, ferric phosphate lithium electrode
Piece successively can carry out DCR test as positive mold battery to three groups of pole piece materials respectively using mold battery structure, survey
Mold battery production method on probation is simple, and multiple groups aluminium foil and battery hole are arranged in battery modules, in this way can be more multiple
The performance of lithium battery, comparison is more intuitive, and test is more convenient.In addition, the pole piece of three groups of batteries can also use identical active matter
Matter obtains three groups of identical lithium batteries, is then taken up in order of priority and carries out DCR test, and test result is averaged, and obtains result in this way
Also more accurate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of lithium battery performance testing device, which is characterized in that including one piece of backing plate and recessed above the backing plate
Type battery modules frame has been sequentially placed isolation board, sealing film, loading plate and conductive metal in the battery modules frame from bottom to up
Plate is provided with several vertical battery holes on the loading plate, one piece of aluminium foil, the aluminium foil is correspondingly arranged below each battery hole
It above sealing film and extend out to outside sealing film, the side plate of left and right two of the battery modules frame is provided with downwards certain depth
Wire casing, wear a H-frame pole altogether downwards in the corresponding wire casing in left and right, and the H-frame pole is pierced by the backing plate, then passes through spiral shell
Mother locks, and is disposed with pole piece, two layers of diaphragm, lithium piece, stainless steel plate, the stainless steel plate from bottom to up in the battery hole
Upper placement spring, the pole piece back side and the aluminium foil are in close contact.
2. a kind of lithium battery performance testing device as described in claim 1, which is characterized in that be additionally provided on the sealing film
Projecting tendon, the projecting tendon is between adjacent aluminium foil.
3. a kind of lithium battery performance testing device as described in claim 1, which is characterized in that the left and right of the battery modules frame
Wire casing on two side plates has two, and the H-frame pole is corresponding with two.
4. a kind of lithium battery performance testing device as described in any one of claims 1 to 3, which is characterized in that the aluminium foil number
Amount is three, and the aluminium foil is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821632.2A CN109143086B (en) | 2018-07-24 | 2018-07-24 | Lithium battery performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821632.2A CN109143086B (en) | 2018-07-24 | 2018-07-24 | Lithium battery performance testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109143086A true CN109143086A (en) | 2019-01-04 |
| CN109143086B CN109143086B (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810821632.2A Active CN109143086B (en) | 2018-07-24 | 2018-07-24 | Lithium battery performance testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725491A (en) * | 2021-07-22 | 2021-11-30 | 合肥国轩高科动力能源有限公司 | Formation-free lithium ion cell pre-lithiation method and device |
| CN114088311A (en) * | 2021-11-03 | 2022-02-25 | 格林美(武汉)动力电池回收有限公司 | Method, system, equipment and storage medium for detecting box security |
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| CN201038234Y (en) * | 2006-12-29 | 2008-03-19 | 万向集团公司 | Double-electrode simulation battery |
| CN201289523Y (en) * | 2008-08-23 | 2009-08-12 | 上海比亚迪有限公司 | Tri-electrode system for analog buckle type lithium ion cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725491A (en) * | 2021-07-22 | 2021-11-30 | 合肥国轩高科动力能源有限公司 | Formation-free lithium ion cell pre-lithiation method and device |
| CN114088311A (en) * | 2021-11-03 | 2022-02-25 | 格林美(武汉)动力电池回收有限公司 | Method, system, equipment and storage medium for detecting box security |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109143086B (en) | 2021-02-19 |
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