CN102035052A - Lithium ion battery reference electrode formation and grading method and battery clamping device therefor - Google Patents
Lithium ion battery reference electrode formation and grading method and battery clamping device therefor Download PDFInfo
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- CN102035052A CN102035052A CN2009101799294A CN200910179929A CN102035052A CN 102035052 A CN102035052 A CN 102035052A CN 2009101799294 A CN2009101799294 A CN 2009101799294A CN 200910179929 A CN200910179929 A CN 200910179929A CN 102035052 A CN102035052 A CN 102035052A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a lithium ion battery reference electrode formation and grading method and a battery clamping device therefor. In the method, formation and grading equipment with the battery clamping device, a charge and discharge device and a reference electrode detection device is adopted; a shell of the battery is neutral and serves as a reference electrode; a positive terminal and a negative terminal of the battery are in conductive connection with a positive connection terminal and a negative connection terminal of the battery clamping device respectively and then are electrically connected with the charge and discharge device respectively to charge and discharge the battery; the reference electrode is in conductive connection with a reference electrode connection terminal of the battery clamping device; and the reference electrode detection device is electrically connected with the positive connection terminal, the negative connection terminal and the reference electrode connection terminal respectively to detect the voltage change of a positive electrode and a negative electrode of the battery in the formation and grading process. By the method and the device, electrode potential and performance change of the battery can be researched meticulously; the stability and the accuracy of the formation and grading of the battery are improved; the formation and grading of steel-shell and aluminum-shell batteries added with the reference electrode are realized in the production process; and the battery with the neutral shell is simple, convenient and easy in the formation, grading and installation.
Description
Technical field
The present invention relates to the forming and capacity dividing method and the device of lithium ion battery, relate in particular to a kind of lithium ion battery reference electrode forming and capacity dividing method and used battery clamping device.
Background technology
Along with constantly popularizing of lithium ion battery, research work for its material, performance and safety problem is more and more, the battery research work relates to the forming and capacity dividing mode problem of electrode and battery in the electrochemistry, in order better to study the both positive and negative polarity performance of battery, often introduce reference electrode, as standard, test positive pole or negative pole current potential with reference electrode respectively for reference electrode.
At box hat or aluminum hull is in the lithium battery of structure, housing uses as positive pole or negative pole mostly, forming and capacity dividing cabinet contact distributes up and down during forming and capacity dividing, upper contact withstands the negative terminal (or positive terminal) of cover plate, lower contact withstands housing, this battery structure and the mode of changing into exist very big potential safety hazard, promptly battery short circuit occurs and forming and capacity dividing is bad, can not monitor accurately at aspects such as inspecting electrode electrical property such as circulation, multiplying power discharging, high low temperature discharge, electrokinetic cell combos.Three electrode tests in the past are to be reference electrode with the lithium metal, be present in inside battery when reference electrode and positive and negative electrodes in same, analyze battery performance by the current potential that detects anode, negative pole and reference electrode, this method not only makes the structure outward appearance of battery that change has taken place, and only limit to Performance Evaluation to battery system, can't on producing, use the performance that this index is weighed battery.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art provides a kind of box hat and aluminum-shell battery can realized in process of production to add the forming and capacity dividing mode of reference electrode, be used for to the battery on producing carry out every electrical property accurately, reliable detection, for the battery performance analysis provides foundation.
The technical scheme that the present invention deals with problems is:
A kind of lithium ion battery reference electrode forming and capacity dividing method uses the forming and capacity dividing equipment with battery clamping device, charge and discharge device and reference electrode checkout gear, and the housing of described battery is for neutrality and be used as reference electrode; The positive and negative electrode terminal of described battery is connected to be electrically connected with described charging device respectively with the positive and negative electrode binding post conducting of described battery clamping device respectively again battery is discharged and recharged; Described reference electrode is connected with the reference electrode binding post conducting of described battery clamping device, described reference electrode checkout gear is electrically connected with positive and negative electrode binding post and reference electrode binding post respectively, detects the change in voltage of positive and negative electrode in the forming and capacity dividing process of described battery.
The present invention also provides said method used battery clamping device on the other hand:
This battery clamping device comprises fixed head and is arranged on two clamp assemblies on the fixed head; Wherein a clamp assemblies comprises the positive and negative electrode binding post, and the positive and negative electrode binding post all is connected with pressure-wire and electric current line; Another clamp assemblies comprises reference electrode binding post and the reference electrode wire that is attached thereto.
In an optimized technical scheme, wherein be arranged on the described fixed head to a clamp assemblies adjustable position, another clamp assemblies is fixedly set on the described fixed head.
The clamp assemblies of described adjustable position comprises adjustable plate, set bolt and is arranged on positive and negative electrode binding post on the adjustable plate; Described fixed head is provided with the groove of fixing described adjustable plate.
Be arranged on the described adjustable plate to described positive and negative electrode binding post adjustable position.
Described adjustable plate cross section is L shaped.
The described clamp assemblies that fixedly installs comprises the cell support plate of electric insulation and is arranged at reference electrode binding post wherein and the reference electrode that is attached thereto.
Described positive and negative electrode binding post and reference electrode binding post are the contact binding post and all have elasticity, and wherein the elastic force of the elasticity rate reference electrode binding post of positive and negative electrode binding post is big.
Said battery container is neutral among the present invention, is meant that battery container is not conducted with other power supply as the electrode of battery yet to be connected.
The invention has the beneficial effects as follows: neutral battery container is as reference electrode, can study battery electrode current potential and performance change more meticulously, improve the stability and the accuracy of battery forming and capacity dividing, for the electrokinetic cell grouping provides more accurate and reliable packet parameters; Realized that in process of production box hat and aluminum-shell battery add changing into and partial volume of reference electrode; Employing has the battery clamping device of three contact points, and making housing is that neutral battery forming and capacity dividing simple installation is easy to operate.
Description of drawings
Fig. 1 is the battery installation diagram of lithium ion battery reference electrode forming and capacity dividing method according to the preferred embodiment of the invention.
Fig. 2 is the measured potential curve figure of lithium ion battery reference electrode forming and capacity dividing method according to the preferred embodiment of the invention
Embodiment
Referring to Fig. 1, a kind of battery clamping device 10 that is used for the battery forming and capacity dividing comprises fixed head 11, last clamp assemblies 12 and following clamp assemblies 13.Fixed head 11 is a rectangular slab, and last clamp assemblies 12 adjustable grounds are provided with the top of fixed head 11, and following clamp assemblies 13 is arranged on the lower end of fixed head 11 regularly.Last clamp assemblies 12 comprises adjustable plate 121, two set bolts 122, positive terminal 123 and negative terminals 124.Adjustable plate 121 is L shaped plate body for cross section, it on one side is fixed on fixed head 11 tops by the ground of two parallel channels, 111 adjustable position on set bolt 122 and the fixed head 11, and positive terminal 123 and negative terminals 124 are fixed on the another side of adjustable plate 11 in the mode of adjustable position.Positive terminal 123 is connected with electric current line 1231 and pressure-wire 1232.Negative terminals 124 is connected with electric current line 1241 and pressure-wire 1242.Positive terminal 123 and negative terminals are the contact binding post, and have elasticity, and its elastic force is 0-2KG.Following clamp assemblies 13 comprises cell support plate 131 and reference electrode binding post 132.Cell support plate 131 is the rectangle plate body of electric insulation, is fixed on the lower end of fixed head 11.Reference electrode binding post 132 passes cell support plate 131 and is fixed in wherein.Reference electrode binding post 132 is connected with reference electrode wire 1321.Reference electrode binding post 132 is the contact binding post, and has elasticity, and its elastic force is 0-1KG.
Referring to Fig. 1, a kind ofly the above-mentioned battery folder of aluminum hull electrokinetic cell 20 usefulness is held device 10 to be fixed in the method that battery changes into forming and capacity dividing in the cabinet, the shell 21 of battery 20 is neutral as reference electrode.Adjust about positive terminal 123 and negative terminals 124 done according to the centre-to-centre spacing of the positive terminal 22 of battery 20 and negative terminal 23, the spacing of two binding posts is equated with battery plus-negative plate terminal centre-to-centre spacing and perform fixing.Adjustable plate 121 is done to adjust up and down according to cell height along fixed head 11, be transferred to the position that battery can be installed smoothly.Positive terminal 22, the negative terminal 23 of battery 20 are aimed at positive terminal 123 respectively and negative terminals 124 shrinks the contact, reference electrode binding post 132 is pushed down in battery container 21 bottom surfaces, the contact of reference electrode binding post 132 is shunk, because the contact of positive and negative electrode binding post is bigger than the contact elastic force of reference electrode binding post, at this moment the battery container bottom surface can be dropped on cell support plate 131 that battery is installed is stable.The charge and discharge device that changes into cabinet is linked to each other with both positive and negative polarity pressure- wire 1232 and 1242, both positive and negative polarity electric current line 1231 and 1241 respectively, battery is carried out charge and discharge.The reference electrode checkout gear links to each other with both positive and negative polarity pressure- wire 1232 and 1242, reference electrode 1321 lines respectively, detects the change in voltage of battery positive and negative electrode in the forming and capacity dividing process, writes down and be depicted as curve as shown in Figure 2.
Referring to Fig. 2,1 is positive pole/reference potential curve among the figure, 2 is positive pole/negative pole potential curve, 3 is negative pole/reference potential curve, the current potential of setting lithium metal is 0V, so lithium metal relatively and the current potential of metallic aluminium be exactly-1.66V, negative pole reference potential curve all-more than the 1.66V, illustrate that battery cathode also has certain residual capacity to utilize in charge and discharge process, this battery capacity better performances.Otherwise negative pole reference voltage curve all or the part-below the 1.66V, illustrate that battery capacity of negative plates in charge and discharge process is not enough or reached maximum, the existing part lithium of negative pole is separated out, battery performance can be subjected to very big influence, battery cycle life is relatively poor during use, utilizes these characteristics to provide foundation for the judgement of cell performance and the consistency of assembled battery.
The above only is preferred embodiment of the present invention, does not constitute any limitation of the invention.Every any modification of being done within the spirit and principles in the present invention, be equal to and replace or improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a lithium ion battery reference electrode forming and capacity dividing method uses the forming and capacity dividing equipment with battery clamping device, charge and discharge device and reference electrode checkout gear, it is characterized in that: the housing of described battery is for neutrality and be used as reference electrode; The positive and negative electrode terminal of described battery is connected to be electrically connected with described charging device respectively with the positive and negative electrode binding post conducting of described battery clamping device respectively again battery is discharged and recharged; Described reference electrode is connected with the reference electrode binding post conducting of described battery clamping device, described reference electrode checkout gear is electrically connected with positive and negative electrode binding post and reference electrode binding post respectively, detects the change in voltage of positive and negative electrode in the forming and capacity dividing process of described battery.
2. used battery clamping device of method according to claim 1 is characterized in that: comprise fixed head and be arranged on two clamp assemblies on the fixed head; Wherein a clamp assemblies comprises the positive and negative electrode binding post, and the positive and negative electrode binding post all is connected with pressure-wire and electric current line; Another clamp assemblies comprises reference electrode binding post and the reference electrode wire that is attached thereto.
3. battery clamping device according to claim 2 is characterized in that: wherein be arranged on the described fixed head to a clamp assemblies adjustable position, another clamp assemblies is fixedly set on the described fixed head.
4. battery clamping device according to claim 3 is characterized in that: the clamp assemblies of described adjustable position comprises adjustable plate, set bolt and is arranged on positive and negative electrode binding post on the adjustable plate; Described fixed head is provided with the groove of fixing described adjustable plate.
5. battery clamping device according to claim 4 is characterized in that: be arranged on the described adjustable plate to described positive and negative electrode binding post adjustable position.
6. according to claim 4 or 5 described battery clamping devices, it is characterized in that: described adjustable plate cross section is L shaped.
7. battery clamping device according to claim 3 is characterized in that: the described clamp assemblies that fixedly installs comprises the cell support plate of electric insulation and is arranged at reference electrode binding post wherein and the reference electrode that is attached thereto.
8. according to each described battery clamping device of claim 2-5, it is characterized in that: described positive and negative electrode binding post and reference electrode binding post are the contact binding post and all have elasticity, and wherein the elastic force of the elasticity rate reference electrode binding post of positive and negative electrode binding post is big.
9. battery clamping device according to claim 6, it is characterized in that: described positive and negative electrode binding post and reference electrode binding post are the contact binding post and all have elasticity, and wherein the elastic force of the elasticity rate reference electrode binding post of positive and negative electrode binding post is big.
10. battery clamping device according to claim 7, it is characterized in that: described positive and negative electrode binding post and reference electrode binding post are the contact binding post and all have elasticity, and wherein the elastic force of the elasticity rate reference electrode binding post of positive and negative electrode binding post is big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101799294A CN102035052A (en) | 2009-09-30 | 2009-09-30 | Lithium ion battery reference electrode formation and grading method and battery clamping device therefor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101799294A CN102035052A (en) | 2009-09-30 | 2009-09-30 | Lithium ion battery reference electrode formation and grading method and battery clamping device therefor |
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| CN102035052A true CN102035052A (en) | 2011-04-27 |
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| CN2009101799294A Pending CN102035052A (en) | 2009-09-30 | 2009-09-30 | Lithium ion battery reference electrode formation and grading method and battery clamping device therefor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459554A (en) * | 2014-12-02 | 2015-03-25 | 河南新太行电源有限公司 | Battery cell monitoring device for high-capacity storage battery formation |
| CN104577238A (en) * | 2013-10-18 | 2015-04-29 | 福特环球技术公司 | Lithium battery with reference electrode |
| CN108445412A (en) * | 2018-04-04 | 2018-08-24 | 国网浙江省电力有限公司宁波供电公司 | Battery on-line monitoring standardization adapter and its mating welding tooling |
-
2009
- 2009-09-30 CN CN2009101799294A patent/CN102035052A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577238A (en) * | 2013-10-18 | 2015-04-29 | 福特环球技术公司 | Lithium battery with reference electrode |
| CN104577238B (en) * | 2013-10-18 | 2018-11-27 | 福特环球技术公司 | Lithium battery with reference electrode |
| CN104459554A (en) * | 2014-12-02 | 2015-03-25 | 河南新太行电源有限公司 | Battery cell monitoring device for high-capacity storage battery formation |
| CN108445412A (en) * | 2018-04-04 | 2018-08-24 | 国网浙江省电力有限公司宁波供电公司 | Battery on-line monitoring standardization adapter and its mating welding tooling |
| CN108445412B (en) * | 2018-04-04 | 2021-08-10 | 国网浙江省电力有限公司宁波供电公司 | Battery on-line monitoring standardized adapter and matched welding tool thereof |
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Application publication date: 20110427 |