CN100570943C - A kind of method of the non-charge dry battery bag being carried out short-circuit detecting and reparation - Google Patents
A kind of method of the non-charge dry battery bag being carried out short-circuit detecting and reparation Download PDFInfo
- Publication number
- CN100570943C CN100570943C CNB2007100355598A CN200710035559A CN100570943C CN 100570943 C CN100570943 C CN 100570943C CN B2007100355598 A CNB2007100355598 A CN B2007100355598A CN 200710035559 A CN200710035559 A CN 200710035559A CN 100570943 C CN100570943 C CN 100570943C
- Authority
- CN
- China
- Prior art keywords
- power brick
- short
- circuit
- short circuit
- battery bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A kind of method that the non-charge dry battery bag is carried out short-circuit detecting and reparation, thus it the short-circuit detecting that the non-charge dry battery bag carries out under the impaction state is effectively judged the short-circuit state of power brick, and on this basis power brick is repaired.When power brick internal resistance during less than certain value, the judgement power brick is short circuit, by the power brick short-circuit detecting device power brick is applied the timing direct current of a steady state value this moment, under the prerequisite that does not injure power brick, the barrier film of the position that is short-circuited is implemented to puncture, short dot can be found out by naked eyes, by manual type the position that is short-circuited is repaired targetedly again.Simultaneously, the acting in conjunction of the electric current of steady state value and the voltage of generation when permanent by the power brick that has micro-short circuit is fed, the burr on the removal battery electrode sheet is repaired the short dot of power brick automatically.The detection of power brick of the present invention and repair good reliability, efficient height, simple to operate, technological parameter is controlled easily.
Description
Technical field
The present invention relates to storage battery, further be meant in the storage battery manufacture process detection and restorative procedure the short circuit of internal storage battery structure.
Background technology
Storage battery is the power supply of a large amount of wireless consuming devices.In today of electronic technology high speed development, the effect of storage battery and status seem more and more important.
Storage battery is made up of positive plate, negative plate, barrier film and electrolyte on internal structure.The effect of positive plate is to lose the higher oxidation state of electron production by positive electrode active materials in charging process to realize electric energy to chemical conversion of energy, and by electron gain high valence state is reduced to the purpose that lower valency realizes that chemical energy changes to electric energy in discharge process; The effect of negative plate is to produce lower valency by negative active core-shell material electron gain in charging process to realize changing electric energy into chemical energy, and changes the purpose that high valence state realizes chemical energy is changed into electric energy by losing electronics into by lower valency in discharge process.The effect of barrier film is to intercept to form direct electron transfer between the positive and negative plate of battery, but allows the conductive ion in the electrolyte freely to conduct; Electrolyte can make the conduction that forms good electrolyte ion between the positive and negative plate of battery, thereby makes the ionic conduction by the electrical conductivity of outer circuit and inside battery of battery constitute the closed-loop path of battery charge, discharge jointly.Obviously, the internal electron conducting power of battery is poor more, and the performance of battery is just good more.
Internal short-circuit of battery is meant that inside battery causes having formed between the both positive and negative polarity passage of electrical conductivity owing to various reason, the formation of this passage, directly cause transmission circuit outside battery of electronics between the inside battery both positive and negative polarity to carry out, consequently the inside battery heating is serious, but outside batteries does not have electric energy output.Therefore, in the manufacture process of battery, it all is very important effectively preventing the short circuit of inside battery and the power brick that short circuit has taken place is detected reparation in advance.Especially for those not short circuits in manufacture process, but change into the power brick that may cause short circuit to occur owing to the expansion of electrode slice in the activation process at battery, potential short dot to its existence punctures in advance, can avoid effectively in follow-up activation of battery and even battery use, short circuit occurring, thereby can improve the reliability of the manufacturing and the use of battery greatly.
The non-charge dry battery bag is meant in the storage battery manufacture process isolates the inside battery assembly that meets the follow-up manufacturing of battery that the back forms with barrier film with positive and negative plate, and the power brick of this moment does not contain electrolyte; It can be the stacked battery bag that is fit to the rectangular cell structure, also can be the coiling form power brick.
The non-charge dry battery bag is carried out short-circuit detecting and reparation, can avoid making behind the cell detect or use in because of positive/negative plate between burr or pole piece in activation process, expand and short circuit occurs, thereby cause the damage of entire cell.In the battery manufacture process in the past, determine that in the middle of a power brick particular location of short dot is the comparison difficulty.For many years, battery industry adopts methods such as high-voltage breakdown method and resistance measurement to seek short dot mostly, but its accuracy is poor, and the result is not ideal enough.At present comparatively general battery short circuit detects the simple mostly universal instrument that adopts, and promptly resistance method of temperature measurement is judged.This survey short circuit technology only can be judged power brick whether short circuit under nature, and can not judge that power brick packs into behind the battery case, and the closely contact issuable short circuit in back between each pole plate more can not be found concrete short dot position.Therefore at present can only be by when detecting power brick resistance, opening each pole piece piecewise to reach the purpose of seeking location of short circuit; Adopt the method, it is lower that short circuit battery is guaranteed the repair free of charge multiple efficient, and owing to will stir piecewise and local extruding pole piece, power brick has also been caused certain secondary damage.
Because existing battery short circuit detection method is carried out the judgement whether a total battery exists short circuit after only detecting the all-in resistance of power brick, can not accurately judge the short dot position in the power brick, and may there be a plurality of short dots in the power brick that has, so the power brick reliability that adopts present conventional method to repair is not high, and power brick to be repaired often takes place in the problem through being short-circuited again after repairing, cause loss economically.
Summary of the invention
The technical problem to be solved in the present invention is, in order to overcome defectives such as the poor reliability, the efficient that have method and apparatus now are lower, treatment effect is relatively poor, a kind of method of the non-charge dry battery bag being carried out short-circuit detecting and reparation is proposed, the short-circuit conditions of this method energy fast detecting non-charge dry battery bag, find out the short dot position exactly, can also repair automatically the micro-short circuit power brick simultaneously, to improve rate of finished products greatly.
The technical solution adopted for the present invention to solve the technical problems is, the described step that the non-charge dry battery bag is carried out short-circuit detecting and restorative procedure is:
A. detect the non-charge dry battery bag that has been short-circuited with conventional method;
B. simulated battery is packaged into actual pressurized operating state in the battery case, described non-charge dry battery bag is carried out the front exert pressure, and makes the approaching by force or short circuit in the position that has short circuit hidden danger between the positive, negative electrode plate;
C. the short-circuit state of described power brick is judged: detect the DC internal resistance performance of described power brick, when the power brick DC internal resistance less than as judging power brick whether during the set point of the evaluation criterion of short circuit, the judgement power brick is short circuit;
D. to the described power brick that is judged as short circuit applied chosen in advance amplitude and the constant current of duration, make electric current pass through under the prerequisite that does not injure power brick, short dot to be punctured after this power brick, the barrier film that promptly will isolate positive and negative plate in the short dot position is punctured at location of short circuit, and generation can be by the vestige of visual identity thus;
E. repair: with the naked eye find out breakdown short dot, and it is repaired targetedly with manual method; There is the acting in conjunction of the voltage of the constant current of certain duration and generation that burr electrode slice in short circuit fusion mode removed by this for the power brick micro-short circuit that exists burr to cause because of electrode slice when the above-mentioned energising, thereby the micro-short circuit point of power brick is removed automatically, reached the purpose of repairing power brick.
The operation principle of said method of the present invention is that simulated battery is packaged into the actual working environment in the battery case, and the entire cell bag is detected non-charge dry battery bag internal resistance performance by pressing packing to put under impaction state, and the short-circuit state of power brick is judged.When the power brick internal resistance less than as judging that power brick is whether during the reference resistance value of short circuit, can judge that power brick is short circuit, apply electric current by checkout gear to power brick this moment, short dot is punctured under the prerequisite that does not injure power brick by the power brick short-circuit detecting device, thereby can find out the short dot position exactly by people's vision, by manual method power brick be repaired targetedly then; Thereby can remove burr on the pole piece that causes micro-short circuit by the acting in conjunction that the power brick short-circuit detecting device is applied to constant current on the power brick and correspondent voltage to the micro-short circuit power brick simultaneously and realize automatic reparation the short circuit battery bag.
Said method of the present invention can be achieved by corresponding device thereof, and its device comprises presses packing to put and short-circuit detecting device.
Described pressure packing is put and comprised pneumatic and electronic two parts: pneumatic part comprises lower platen and forms with the cylinder that top board combines that its effect is that power brick is applied thrust; Electronic part is used to control that top board compresses and action of releasing.The size and dimension of last lower platen can be regulated locating piece according to structural factors such as the height of the size of tested power brick pole piece, power brick and shapes, guarantees accurately location and compacted of power brick.
The function of described power brick short-circuit detecting device comprises the resistance that the detection external loop is set and exports the electric current of setting.The length of the size of output current, the height of voltage and current duration all can be set according to actual needs.The operation principle of this device is, at first set as judging the whether reference resistance value of the standard of short circuit of power brick, detect the resistance of power brick and compare with reference point, when being lower than reference point, detected value can judge the power brick short circuit, this moment, device gave the alarm, simultaneously power brick is exported the constant current of constant time short dot is punctured, short dot can be found out by people's vision at an easy rate.
The working method of power brick short-circuit detecting device is, the connecting line that at first will indicate anodal sign is linked the positive terminal of power brick, and the connecting line that indicates the negative pole sign is connected to the power brick negative pole end.Begin the internal resistance of test battery bag then, compare with the reference resistance value of setting after the testing time arrival set point.When detected value when setting resistance value, the device beginning applies the constant current of constant time to power brick, application time stops to apply electric current after reaching setting-up time automatically; When the resistance value that detects during, judge that then power brick does not have short circuit, device this moment output current not greater than the reference resistance value set.After the short circuit battery bag is applied electric current, electric current show non-vanishing and only several milliamperes to tens MAHs, this moment, power brick showed for the micro-short circuit electric current as for setting electric current, then short dot is breakdown.In testing process, when the dc resistance of tested power brick exceeded the reference resistance value that sets, this device can send warning.
The basic comprising of power brick short-circuit detecting device is, it comprises that the button, alarm indication, electric current and the voltage-regulation knob that start test, current duration adjusting knob and two are used for the electric connection line part with the power brick both positive and negative polarity.This device also can be made the device of being controlled automatically by computer, and the adjusting of electric current, voltage and current duration can be by the computer program setting at this moment.The power brick short-circuit detecting device comprises power circuit, oscillating circuit, coupling circuit, dc high-voltage circuit and test circuit.Each circuit is for connecting in turn.The current commutates of external power supply being imported by power circuit, oscillating circuit, coupling circuit and dc high-voltage circuit is the little electric current of high voltage direct current, act on the two poles of the earth of mesuring battary bag then, thereby the minor variations of determinand internal resistance is fed back on the ammeter and buzzer of test circuit.Install safe, simple in structure, easy to operate, detect sensitivity and efficient height.Its important technological parameters is as follows:
1, electric current (DC): 0.5A～20A is adjustable continuously;
2, open circuit voltage≤15V;
3, resistance: 0～5M Ω can survey; 1K Ω～5M Ω guarantees precision: ± 5%;
4, alarm settings: 0～5M Ω; 1K Ω～5M Ω guarantees precision: ± 5%;
5, electric current application time: 0.5S～99.99S can establish;
6, station: single station.
As known from the above, the present invention is a kind of method that the non-charge dry battery bag is carried out short-circuit detecting and reparation, and it can reliably be judged the short-circuit state of non-charge dry battery bag, can find the short dot position rapidly and accurately, and it is simple to operate, easy to use; Can repair the micro-short circuit power brick automatically, short dot position to the short circuit battery bag punctures on the basis that does not influence entire cell bag performance, also repair fast thereby can find out the short dot position intuitively, production efficiency is greatly improved, reliability of products also is guaranteed.
Description of drawings
Fig. 1 is the process chart of an embodiment of the present invention;
Fig. 2 is that the pressure packing of an embodiment of the present invention is put main TV structure schematic diagram;
Fig. 3 is that the pressure packing of another embodiment of the present invention is put main TV structure schematic diagram;
Fig. 4 is the electrical schematic diagram that the present invention presses packing to put;
Fig. 5 is the pneumatic system schematic diagram that the present invention presses packing to put;
Fig. 6 is the circuit theory diagrams of power brick short-circuit detecting device of the present invention.
In the drawings:
The 1-control panel, 2-top board, 3-lower platen, 4-pillar.
Embodiment
Following examples are used to the present invention is described and never limit the present invention.
Embodiment 1: press packing to put with the power brick short-circuit detecting device and work alone, the power brick specification is QNFG30-3; Processing step is:
1, prepares
1.1 will press the packing compressed air pressure size adjustment of putting to 0.3MPa, regulating top board, to press down the retention time be 3s;
1.2 power brick to be checked is placed on presses packing to put (the pole plate plane of power brick is parallel with the plate face of upper and lower pressing plate) on the station, start and press packing to put top board to press down, use the whether short circuit of ∞ (infinity) shelves measurement power brick of universal instrument;
1.3 the short circuit battery bag unification of picking out is deposited;
1.4 the test parameter of power brick short-circuit detecting device is adjusted setting by following data: electric current is 3A, and the time is 5s, and the reference resistance value is 20K.
2, short-circuit test and reparation
2.1 adjusting the top board time of pressing down of pressing packing to put is 20s;
2.2 the short circuit battery bag is placed on the pressure packing to be put on the station, the both positive and negative polarity anchor clamps of power brick short-circuit detecting device are linked to each other with two poles of power brick respectively form the loop, startup is pressed packing to put top board and is pressed down, after the action that power brick is exerted pressure is finished, detect non-charge dry battery bag internal resistance performance by the power brick short-circuit detecting device, the short-circuit state of power brick is judged.When power brick internal resistance during less than the reference resistance set point, the judgement power brick is short circuit, and this moment, checkout gear applied a constant timing electric current to power brick;
2.3 electric current can puncture the short dot in the power brick under the prerequisite that does not injure power brick during by the short circuit battery bag, promptly will isolate the barrier film puncture of positive/negative plate at the power brick location of short circuit.For the power brick that has micro-short circuit, when energising, the micro-short circuit point of power brick is repaired automatically by the burr burr on the pole piece in the acting in conjunction removal power brick of relatively large electric current and relative higher voltage;
After 2.4 process is finished, stop above operation, take off power brick, by watching around the power brick or the position of short dot is watched and found to the mode of the pole plate of leafing through, with clean small brushes short dot is cleaned out, cut a fritter barrier film again the pole plate of short circuit is separated, need to prove that the diaphragm of being cut can not be too big, exceed 1 centimetre of the outer rim of short dot at most;
2.5 after power brick is repaired, must measure whether short circuit of power brick again,, then need repeat aforesaid operations if short circuit occurs at this moment if the short circuit caution no longer occurs then show that the reparation of this power brick finishes.
Embodiment 2: press packing to put and power brick short-circuit detecting device linkage work, the power brick specification is QNFG30-3; Processing step is:
1, prepares
1.1 will press the packing compressed air pressure size adjustment of putting to 0.3MPa, regulating top board, to press down the retention time be 20s;
1.2 the test parameter of battery check device is adjusted setting by following data: electric current is 3A, and the time is 5～8s, and contrast resistance is 20K.
2, short-circuit test and reparation
2.1 power brick to be checked is placed on the pressure packing puts on the station, the both positive and negative polarity line anchor clamps of power brick short-circuit detecting device are linked to each other with two poles of power brick respectively form the loop, start pressing packing to put top board presses down power brick is exerted pressure, pressure reaches stable back and detects non-charge dry battery bag internal resistance performance by the power brick short-circuit detecting device, short-circuit state to power brick detects judgement, when the power brick internal resistance less than to the reference resistance set point set the time, can judge that power brick is short circuit, this moment, device was to constant timing electric current of power brick output.
2.2 electric current punctures short dot under the prerequisite that does not injure power brick by short circuit battery Bao Shike, the barrier film that promptly will isolate positive/negative plate in the short dot position punctures.For the power brick that has micro-short circuit, can remove the burr burr that exists on the pole piece in the power brick by the acting in conjunction of relatively large electric current and relative higher voltage and the micro-short circuit point of power brick is repaired automatically in when energising;
After 2.3 process is finished, stop above operation, take off power brick, for breakdown power brick by watching around the power brick or the position of short dot is watched and found to the mode of the pole piece of leafing through, with clean small brushes short dot is cleaned out, cut a fritter barrier film pole plate of short circuit is separated.Diaphragm can not be too big, exceeds 1 centimetre of the outer rim of short dot at most;
2.4 after power brick is repaired, must measure whether short circuit of power brick again, represent then during not short circuit that this power brick reparation finishes, if short circuit then repeats aforesaid operations.
Claims (1)
1. the method that the non-charge dry battery bag is carried out short-circuit detecting and reparation is characterized in that, its processing step is:
A. simulated battery is packaged into actual pressurized operating state in the battery case, described non-charge dry battery bag is carried out the front exert pressure, and makes the approaching by force or short circuit in the position that has short circuit hidden danger between the positive, negative electrode plate;
B. the short-circuit state of described power brick is judged: detect the DC internal resistance performance of described power brick, when the power brick DC internal resistance less than as judging power brick whether during the set point of the evaluation criterion of short circuit, the judgement power brick is short circuit;
C. to the described power brick that is judged as short circuit applied chosen in advance amplitude and the constant current of duration, make electric current pass through under the prerequisite that does not injure power brick, short dot to be punctured after this power brick, the barrier film that promptly will isolate positive and negative plate in the short dot position is punctured at location of short circuit, and generation can be by the vestige of visual identity thus;
D. repair: with the naked eye find out breakdown short dot, and it is repaired targetedly with manual method; For the power brick micro-short circuit that exists burr to cause because of electrode slice, when above-mentioned energising, there is the acting in conjunction of the voltage of the constant current of certain duration and generation that the burr on the electrode slice is removed in short circuit fusion mode, thereby the micro-short circuit point of power brick is removed automatically by this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100355598A CN100570943C (en) | 2007-08-15 | 2007-08-15 | A kind of method of the non-charge dry battery bag being carried out short-circuit detecting and reparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100355598A CN100570943C (en) | 2007-08-15 | 2007-08-15 | A kind of method of the non-charge dry battery bag being carried out short-circuit detecting and reparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101136486A CN101136486A (en) | 2008-03-05 |
| CN100570943C true CN100570943C (en) | 2009-12-16 |
Family
ID=39160413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100355598A Expired - Fee Related CN100570943C (en) | 2007-08-15 | 2007-08-15 | A kind of method of the non-charge dry battery bag being carried out short-circuit detecting and reparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100570943C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409673B (en) * | 2014-11-06 | 2017-02-01 | 湘潭大学 | Method for repairing and modifying perforated lithium ion battery diaphragm |
| CN105591172B (en) * | 2016-03-10 | 2018-05-29 | 中航锂电（洛阳）有限公司 | A kind of repair method of stacked short-circuit battery core |
| CN105811031A (en) * | 2016-05-13 | 2016-07-27 | 合肥国轩高科动力能源有限公司 | Repairing method for battery with slightly-damaged diaphragm |
| CN109085502A (en) * | 2018-06-29 | 2018-12-25 | 湖南科霸汽车动力电池有限责任公司 | The method for identifying micro-short circuit position inside nickel-metal hydride battery |
| CN112518323A (en) * | 2020-11-25 | 2021-03-19 | 武汉耀皮康桥汽车玻璃有限公司 | Automobile rear windshield processing device |
| CN113093009B (en) * | 2021-03-31 | 2022-05-27 | 朗屹环保科技(山东)有限公司 | Lead-acid battery internal polar plate inspection equipment |
| CN113325323A (en) * | 2021-07-08 | 2021-08-31 | 湖北亿纬动力有限公司 | Battery detection method and battery detection device |
-
2007
- 2007-08-15 CN CNB2007100355598A patent/CN100570943C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101136486A (en) | 2008-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100570943C (en) | A kind of method of the non-charge dry battery bag being carried out short-circuit detecting and reparation | |
| CN108508367A (en) | The detection method of flexible-packed battery pole group short circuit | |
| CN110729516A (en) | Micro-short circuit test method of lithium ion battery | |
| CN203101563U (en) | Polymer lithium-ion battery short-circuit detection apparatus | |
| CN103018624A (en) | Detection method for plate set short circuit of flexible packaging batteries | |
| CN108267695A (en) | A kind of analysis test method based on pressure lithium battery interior short circuit | |
| JP2009054300A (en) | Internal short circuit evaluation method of battery | |
| CN108919131A (en) | The detection determination method of battery micro-short circuit | |
| CN112415348A (en) | Lithium ion battery diaphragm breakdown voltage testing device and testing method | |
| CN108872871A (en) | A kind of Battery Baton compression testing device | |
| CN203299318U (en) | Short-circuit detection apparatus for battery core | |
| CN111768984A (en) | High-efficiency automatic detection and energization method for capacitor | |
| CN103311966B (en) | It is applied to battery adaptive controller and the method for batteries in parallel connection group | |
| CN201017020Y (en) | Electric thin plastic film electric foible tester for | |
| JPH11297367A (en) | Short-circuit inspecting method and short-circuit inspecting device for electrode group of battery | |
| CN111830324A (en) | Aluminum-plastic film insulation test structure and aluminum-plastic film insulation test method | |
| CN217278850U (en) | Pulse insulation two-in-one lithium battery cell short circuit detection device | |
| CN206710529U (en) | A kind of damage earth detector of electromagnetic enamel-covered wire | |
| CN1077981C (en) | Quick screening, classifying and short-circuit repairing device for batteries | |
| CN212340272U (en) | Burr detection device | |
| CN212808485U (en) | Testing arrangement of continuous withstand voltage of film | |
| CN203785617U (en) | Cell pole sheet burr detection device | |
| CN211122992U (en) | Battery resistance measuring device | |
| CN112730548A (en) | Lithium dendrite online monitoring method and system for lithium ion battery | |
| CN112881941A (en) | Insulation test method capable of detecting capillary short circuit of battery core and corresponding battery conduction insulation detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20150815 |
|
| EXPY | Termination of patent right or utility model |