CN106654359A - Lithium ion battery capable of non-destructively detecting electrode interface - Google Patents
Lithium ion battery capable of non-destructively detecting electrode interface Download PDFInfo
- Publication number
- CN106654359A CN106654359A CN201611236745.3A CN201611236745A CN106654359A CN 106654359 A CN106654359 A CN 106654359A CN 201611236745 A CN201611236745 A CN 201611236745A CN 106654359 A CN106654359 A CN 106654359A
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- China
- Prior art keywords
- interface
- battery
- cavity
- lithium ion
- structural part
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
Abstract
The invention discloses a lithium ion battery capable of non-destructively detecting an electrode interface. The lithium ion battery comprises a shell with a first cavity, a monomer battery core, a plastic structural part, a detachable sealing element and a detachable interface detection component, wherein the monomer battery core is arranged in the shell; the plastic structural part is embedded into the shell, and is positioned above the monomer battery core; the detachable sealing element is used for sealing the plastic structural part; the monomer battery core is electrically insulated from the plastic structural part; the plastic structural part is provided with a second cavity; the second cavity is matched with the interface detection component; the plastic structural part and the interface detection component are provided with micro pores, and are communicated with the first cavity through the micro pores. In a use state, the sealing element above the plastic structural part is detached, and the interface detection component is fixed in the cavity of the plastic structural part. By adopting the battery, the interface of a lithium ion battery can be optimized non-destructively, a failed electrode can be judged rapidly in the case of an exception, maintenance is performed through fluid supplement at a later period of a battery cycle, and the capacity is recovered partially to realize gradient utilization of the battery.
Description
Technical field
The present invention relates to field of lithium ion battery, and in particular to a kind of lithium ion battery of energy lossless detection electrode interface.
Background technology
With the development of modern industrial society, the consumption to Fossil fuel is increased dramatically, consumption of the transportation to fuel oil
It is especially prominent.Lithium ion battery as a kind of new electrical power storage carrier, with its voltage it is high, specific energy is high, safety is good and
Pollution-free the advantages of, enjoys people to pay close attention to.The cycle life of high-capacity square lithium ion battery is evaluate electrokinetic cell performance one
Item important indicator, and its interface performance is closely related with cycle life.Due to there is side reaction etc. in inside battery chemical system
Factor, after circulation some cycles, electrolyte, electrolyte, functional additive etc. have certain loss to lithium ion battery, so as to
The interface performance for causing battery is deteriorated, and cycle performance declines；The waste gas that side reaction is produced, can make barrier film wrinkle, and make interface degradation,
Li dendrite is easily produced, potential safety hazard is produced.
Traditional battery preliminary filling technique is first, with a small amount of battery as object of study, first to obtain the relation of voltage and gas production,
Then in battery batch preliminary filling, unification is charged to battery under a certain voltage, then is placed under hypobaric and is evacuated.
The advantage of this air suction mode is simple, but from sample to produce in enormous quantities transformation in, which easily by battery not
The interference of the factors such as same batch, Arrays Aluminum Films in Acid Solution and environment, it is difficult to ensure the solid electrolyte interface film that preliminary filling is formed（SEI
Film）Collimation.Also, gas builds up during battery preliminary filling, this can cause barrier film wrinkle volume, and then affect its interface characteristics
Can, cause the generation of Li dendrite, cause loop attenuation and potential safety hazard.And, the formation of SEI films is affected by negative pole current potential
It is bigger, if only according to full cell voltage judging, may be disturbed by factors such as anodic potentials, cause to fail be adapted to bear
Film forming under electrode potential, affects the compactness of SEI films.Additionally, conventional batteries cannot accurately monitor both positive and negative polarity electricity in usage cycles
Position and state of interface, and neutralization electrode cannot be judged when battery occurs abnormal, in the circulating battery later stage, also cannot be by mending
The mode of liquid carries out appropriate maintenance.
In view of a little, it is necessary to provide a kind of battery structure, the formation of SEI films carried out during preliminary filling more rational
Control, and in different test processs（Capacity, circulation, high temperature storage, overcharge, overdischarge）In boundary to lithium ion battery
Face is monitored, and abnormal problem quickly judges.
The content of the invention
It is an object of the invention to provide it is a kind of can lossless detection electrode interface lithium ion battery, the battery solves tradition
Battery cannot accurately monitor positive and negative electrode potential and state of interface in usage cycles, and also cannot pass through in the circulating battery later stage
The mode of fluid infusion carries out the problem of appropriate maintenance, nondestructively to lithium ion battery interface optimization, and can occur fast during exception
Speed judges neutralization electrode, can enable capacity portion so that appropriate maintenance is carried out by way of fluid infusion in the circulating battery later stage
Divide and recover, can be used for energy storage field, to realize that the echelon of battery is utilized.
In order to achieve the above object, the invention provides a kind of lithium ion battery of energy lossless detection electrode interface, the electricity
Pond includes：Shell with the first cavity, is arranged on the single battery core of inside the shell, is embedded in inside the shell and in single battery core
The plastic structural part of side, for sealing the removable seal of the plastic structural part, and dismountable interface exploring block.
Wherein, it is electrically isolated between described single battery core and plastic structural part.
Wherein, described plastic structural part has the second cavity, and second cavity is mutually fitted with described interface exploring block
Match somebody with somebody.
Wherein, described plastic structural part and interface exploring block are equipped with micropore, are communicated by micropore with the first cavity.
In use state, the sealing member above plastic structural part is disassembled, interface exploring block is fixed on into plastics knot
In the cavity of component.
Described shell is included：Lower house, covers the cover plate on lower house, and is separately positioned on cover plate two ends just
Pole connector and anode connector.
Described plastic structural part is arranged between positive pole connector and anode connector.
Described plastic structural part is included：Plastics screw, the nut being adapted with plastics screw, and it is arranged on plastic spiral
Seal washer between silk and cover plate.
Described nut and plastics screw is respectively provided with cavity.Wherein, the cavity of nut be both ends open, the sky of plastics screw
One end that chamber is connected with nut is opening, and the other end is blind end.
Described plastics screw has columned cavity, and the side wall of the cavity lower end is provided with female thread；Described interface
The side wall of exploring block lower end is provided with external screw thread.
The side wall of described plastics screw lower end is provided with some first micropores.
The side wall of described interface exploring block lower end is provided with some second micropores, described the second micropore and the first micropore
Position match.
Described sealing member is block.
The upper surface of described sealing member is less than the plane that the cover plate of battery is located.
Described interface exploring block is included：Reference electrode, the fluid injection/bleed-off passage being arranged in reference electrode, and
The reference electrode passage being arranged on reference electrode.
The lithium ion battery of the energy lossless detection electrode interface that the present invention is provided, solves conventional batteries in usage cycles
Positive and negative electrode potential and state of interface cannot be accurately monitored, and also cannot be fitted by way of fluid infusion in the circulating battery later stage
When the problem safeguarded, with advantages below：
（1）The battery of the present invention can be connected with air extractor, and be evacuated under the larger negative pole current potential of battery producing gas amount, subtract
Few impact of the bubble to electrode interface, improves the interface performance of battery, reduces the generation of Li dendrite, improves the cycle performance of battery
And security performance.
（2）The battery of the present invention nondestructively to lithium ion battery interface optimization can carry out fluid infusion to battery if necessary, make appearance
Measure and recovered with part, to improve the cycle performance of battery, the echelon for realizing battery is utilized.
（3）The battery of the present invention can align cathode interface and carry out at-once monitor, and when occurring abnormal neutralization electrode is quickly judged.
（4）It is generally acknowledged that the formation current potential of SEI films is in 0.8 ~ 0.2V（vs. Li+/ Li, to lithium current potential）Between, the present invention
Battery monitor negative pole current potential be located at this it is interval when, can suitably adjust electric current density, to obtain finer and close SEI films, carry
The cycle performance of high battery.
Description of the drawings
Fig. 1 is the structural representation of the lithium ion battery of the energy lossless detection electrode interface of the present invention.
Fig. 2 is the structural representation of the plastic structural part of the present invention.
Fig. 3 is the structural representation of the interface exploring block of the present invention.
Fig. 4 is that structure of the lithium ion battery of the energy lossless detection electrode interface of the present invention in preliminary filling and maintenance state is shown
It is intended to.
Fig. 5 is the both positive and negative polarity potential curve figure after the circulating battery 500 times of the present invention.
Specific embodiment
Technical scheme is described further below in conjunction with drawings and Examples.
As shown in figure 1, the structural representation of the lithium ion battery for the energy lossless detection electrode interface of the present invention, the battery
Comprising：Shell 10 with the first cavity, the single battery core 20 being arranged in shell 10 is embedded in shell 10 and in monomer
The plastic structural part 30 of the top of battery core 20, is arranged on above plastic structural part 30 and removable seal 40, and detachably
Interface exploring block 50.
Wherein, shell 10 is provided with：Positive pole connector 11 and anode connector 12.Single battery core 20 and plastic structural part 30
Between it is electrically isolated, it is preferable that do not contact between plastic structural part 30 and single battery core 20.Plastic structural part 30 is empty with second
Chamber, and second cavity is adapted with interface exploring block 50.The plastic structural part 30 and interface exploring block 50 are empty with first
Chamber communicates.
In use state, the sealing member 40 of the top of plastic structural part 30 is disassembled, interface exploring block 50 is fixed on
In the cavity of plastic structural part 30.
Above-mentioned shell 10 is included：Lower house 11, and cover the cover plate 14 on lower house 13.Positive pole connector 11 and negative
Pole connector 12 is separately positioned on the two ends of the cover plate 14.
Plastic structural part 30 is arranged between positive pole connector 11 and anode connector 12, it is preferable that be arranged on cover plate 14
Middle part.As shown in Fig. 2 the structural representation of the plastic structural part for the present invention, the plastic structural part 30 includes：Plastics screw
31, the nut 32 being adapted with plastics screw 31, and the seal washer 33 being arranged between plastics screw 31 and cover plate 14.Its
In, nut 32 has the cavity of both ends open, and plastics screw 31 has the cavity of an opening and a blind end, itself and nut 32
The end of connection is opening.The cavity of nut 32 and plastics screw 31 constitutes the second cavity.When nut 32 is according to setting
When torque is screwed, seal washer 33 is squeezed generation elastic deformation so that plastics screw 31 is in close contact with the cover plate 14 of battery,
Reach sealing effectiveness.
Wherein, above-mentioned plastics screw 31 has columned cavity, and its inwall is provided with screw thread.The bottom of the plastics screw 31
Some first micropores 311 are provided with, specifically, perpendicular to cavity axis, these micropores will can connect first micropore 311 inside and outside screw
Logical, by these micropores, gas and liquid can successfully circulate.
The material of above-mentioned plastic structural part 30 includes（But it is not limited to）：Perfluoroalkoxy resin（PFA）, polypropylene（PP）With
Polyethylene（PE）In any one or it is two or more, it is preferable that adopt PFA.
Sealing member 40 is block, and it is used for sealed plastic structural member 30, and the upper surface of the sealing member 40 is less than battery
The plane that cover plate 14 is located.
As shown in figure 3, the structural representation of the interface exploring block for the present invention, interface exploring block 50 includes：Reference
Electrode 51, the fluid injection/bleed-off passage 52 being arranged in reference electrode 51, and be arranged on reference electrode on reference electrode 51 and lead to
Road 53.The outer wall of the bottom of the interface exploring block 50 is provided with screw thread, and is provided with some second micropores 54, and specifically, this
Two micropores 54 are arranged on the bottom of reference electrode 51 and fluid injection/bleed-off passage 52.Second micropore 54 is micro- with the first micropore 311
Hole site matches, by the second micropore 54 and the first micropore 311 can by interface exploring block 50 and plastic structural part 30 with
The space connection of inside battery.
Above-mentioned reference electrode 51 is metal electrode, and it includes（But it is not limited to）：Appointing in lithium electrode, platinum electrode and silver electrode
Meaning is a kind of, it is preferable that reference electrode 51 is lithium electrode.
Above-mentioned fluid injection/bleed-off passage 52 can be connected with air extractor, be evacuated, and to reduce bubble, prevent gas buildup
Electrode interface is affected, so as to improve the interface performance of battery.In the maintenance process to battery, fluid injection/bleed-off passage can be passed through
52 add electrolyte, battery capacity part is recovered, and to improve the cycle performance of battery, the echelon for realizing battery is utilized.
As shown in figure 4, the structure of the lithium ion battery in use state of the energy lossless detection electrode interface for the present invention
Schematic diagram, in preliminary filling or when safeguarding, sealing member 40 is disassembled, and interface exploring block 50 is inserted into the cylinder of plastics screw 31
In the cavity of shape, reference electrode passage 53 and detection means（Such as circuit tester）Connection, positive pole connector 11 and reference electrode are led to
Road 53 is electrically connected, and can detect the anodic potentials of battery, and anode connector 12 and reference electrode passage 53 are electrically connected, and can detect electricity
The negative pole current potential in pond, collection anode and negative pole current potential.By the fluid injection/bleed-off passage 52 of interface exploring block 50 and pumping dress
Put connected, and battery is charged, real-time monitoring negative pole current potential.When negative pole current potential reaches a certain specific voltage（Under this voltage
Battery producing gas amount is larger）, suspend and charge, start air extractor and battery is evacuated, to reduce bubble, prevent gas buildup shadow
Electrode interface is rung, so as to improve the interface performance of battery, the generation of Li dendrite is reduced, to improve the security performance of battery.Pumping
After finishing, continue to charge, whether positive and negative electrode current potential has exception in observation whole process, prevent from overcharging and making negative pole analyse lithium, until
Till the voltage of battery is charged to blanking voltage.Interface exploring block 50 is taken out from plastics screw 31, welded seal part 40,
Ensure the sealing of battery.Above-mentioned monitoring process be it is lossless, and battery can carry out again by sealing member 40 after maintenance it is close
Envelope.
Embodiment 1
With square aluminum-shell battery as object of study, anode adopts LiFePO4, battery cathode to adopt graphite, plastics screw 31
Using M12 types, seal washer 33 adopts silicone rubber gasket, and by square aluminum-shell battery before welding battery, i.e. single battery core 20 is put
It is placed in shell 10.Plastics screw 31 is tightened to ensure battery sealing-performance, and installs interface exploring block 50.Above-mentioned part peace
After installing, with the positive pole connector 11 and reference electrode passage 53 of adopting line ball connection battery of Agilent, anodic potentials can be gathered,
Connection anode connector 12 and reference electrode passage 53, can gather negative pole current potential.By the fluid injection/bleed-off passage of interface detection device
52 are connected with air extractor, and battery is charged, real-time monitoring negative pole current potential, when negative pole current potential respectively reach 0.2V,
When 0.15V, 0.10V, now battery producing gas amount is larger, suspends and charges, and starts air extractor and battery is evacuated, and prevents gas
Cumulative effect electrode interface, pumping continues to charge after finishing, and whether positive and negative electrode current potential has exception in observation whole process, prevents
Overcharge and make negative pole analyse lithium, till full cell voltage is charged to 3.65V, interface detection device is taken out, and welded seal part
40 ensureing the sealing of battery.
Embodiment 2
By the circulating battery of embodiment 1 using after 500 times, by sealing member 40（That is block）Open, reconnect interface probe portion
Both positive and negative polarity potential curve after part 50, monitoring circulation 500 times, and is contrasted with the both positive and negative polarity potential curve before circulation, can be with
Judge the electrode of failure.As shown in figure 5, for the both positive and negative polarity potential curve figure after the circulating battery 500 times of the present invention, battery is being followed
After ring 500 times, the potential plateau of not only capacity step-down, and positive pole and negative pole there occurs change.For the negative pole after circulation, its
The potential plateau of discharge and recharge is relatively low all the time, illustrates negative terminal surface richness lithium, it is likely that have the generation of Li dendrite；For after circulation just
Pole, its charging potential is raised, and discharge potential is reduced, and shows that activation polarization increases, and anodic potentials reduce being that guiding discharge terminates
Main cause, this positive pole that moves to for being possibly due to electrolyte by-product makes positive pole degenerate.
In sum, the lithium ion battery of the energy lossless detection electrode interface that the present invention is provided, the battery can be to both positive and negative polarity
Interface carries out at-once monitor, and when occurring abnormal neutralization electrode is quickly judged, and can also be nondestructively excellent to lithium ion battery interface
Change, if necessary fluid infusion is carried out to battery, capacity part is recovered, to improve the cycle performance of battery, realize the ladder of battery
Secondary utilization.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. it is a kind of can lossless detection electrode interface lithium ion battery, it is characterised in that the battery bag contains：
Shell with the first cavity（10）,
It is arranged on shell（10）Interior single battery core（20）,
It is embedded in shell（10）It is interior and in single battery core（20）The plastic structural part of top（30）,
For sealing the plastic structural part（30）Removable seal（40）, and
Dismountable interface exploring block（50）；
Described single battery core（20）With plastic structural part（30）Between it is electrically isolated；
Described plastic structural part（30）With the second cavity, second cavity is used to accommodate interface exploring block（50）；
Described plastic structural part（30）With interface exploring block（50）Micropore is equipped with, is communicated by micropore with the first cavity；
In use state, plastic structural part is disassembled（30）The sealing member of top（40）, by interface exploring block（50）It is fixed
In plastic structural part（30）Cavity in.
2. it is according to claim 1 can lossless detection electrode interface lithium ion battery, it is characterised in that described shell
（10）Comprising：
Lower house（13）,
Cover in lower house（13）On cover plate（14）, and
It is separately positioned on cover plate（14）The positive pole connector at two ends（11）And anode connector（12）.
3. it is according to claim 2 can lossless detection electrode interface lithium ion battery, it is characterised in that described plastics
Structural member（30）It is arranged on positive pole connector（11）And anode connector（12）Between.
4. it is according to claim 2 can lossless detection electrode interface lithium ion battery, it is characterised in that described plastics
Structural member（30）Comprising：
Plastics screw（31）,
With plastics screw（31）The nut being adapted（32）, and
It is arranged on plastics screw（31）With cover plate（14）Between seal washer（33）；
Described nut（32）With plastics screw（31）It is respectively provided with cavity；Wherein, nut（32）Cavity be both ends open, plastics
Screw（31）Cavity and nut（32）One end of connection is opening, and the other end is blind end.
5. it is according to claim 4 can lossless detection electrode interface lithium ion battery, it is characterised in that described plastics
Screw（31）With columned cavity, the side wall of the cavity lower end is provided with female thread；Described interface exploring block（50）Under
The side wall at end is provided with external screw thread.
6. it is according to claim 4 can lossless detection electrode interface lithium ion battery, it is characterised in that described plastics
Screw（31）The side wall of lower end is provided with some first micropores（311）.
7. it is according to claim 6 can lossless detection electrode interface lithium ion battery, it is characterised in that described interface
Exploring block（50）The side wall of lower end is provided with some second micropores（54）, described the second micropore（54）With the first micropore（311）
Position match.
8. it is according to claim 1 can lossless detection electrode interface lithium ion battery, it is characterised in that described sealing
Part（40）For block.
9. it is according to claim 1 can lossless detection electrode interface lithium ion battery, it is characterised in that described sealing
Part（40）Upper surface less than battery cover plate（14）The plane at place.
10. the lithium ion battery of the energy lossless detection electrode interface according to any one in claim 1-9, its feature exists
In described interface exploring block（50）Comprising：
Reference electrode（51）,
It is arranged on reference electrode（51）Interior fluid injection/bleed-off passage（52）, and
It is arranged on reference electrode（51）On reference electrode passage（53）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236745.3A CN106654359B (en) | 2016-12-28 | 2016-12-28 | A kind of lithium ion battery of energy lossless detection electrode interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236745.3A CN106654359B (en) | 2016-12-28 | 2016-12-28 | A kind of lithium ion battery of energy lossless detection electrode interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106654359A true CN106654359A (en) | 2017-05-10 |
| CN106654359B CN106654359B (en) | 2019-03-29 |
Family
ID=58832346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611236745.3A Active CN106654359B (en) | 2016-12-28 | 2016-12-28 | A kind of lithium ion battery of energy lossless detection electrode interface |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107464912A (en) * | 2017-08-03 | 2017-12-12 | 桑顿新能源科技有限公司 | A kind of echelon utilizes soft-packaging lithium battery cores liquid replenishing method |
| CN110398690A (en) * | 2018-04-20 | 2019-11-01 | 昆明新能源汽车工程技术中心有限公司 | Three electrode testing devices |
| CN117393966A (en) * | 2023-12-13 | 2024-01-12 | 陕西奥林波斯电力能源有限责任公司 | Repair device for large-capacity battery, repair bin and large-capacity battery |
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| CN200993980Y (en) * | 2006-12-18 | 2007-12-19 | 上海比亚迪有限公司 | Reference electrode assembly |
| CN200997429Y (en) * | 2006-12-18 | 2007-12-26 | 上海比亚迪有限公司 | Triple-electrode battery |
| CN101552356A (en) * | 2009-05-14 | 2009-10-07 | 林道勇 | Maintainable lithium ion battery and maintenance method thereof |
| CN102804447A (en) * | 2010-04-08 | 2012-11-28 | 株式会社Lg化学 | Battery module including sensing members with novel structure |
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| JP2006185708A (en) * | 2004-12-27 | 2006-07-13 | Nissan Motor Co Ltd | Secondary battery |
| CN200993980Y (en) * | 2006-12-18 | 2007-12-19 | 上海比亚迪有限公司 | Reference electrode assembly |
| CN200997429Y (en) * | 2006-12-18 | 2007-12-26 | 上海比亚迪有限公司 | Triple-electrode battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107464912A (en) * | 2017-08-03 | 2017-12-12 | 桑顿新能源科技有限公司 | A kind of echelon utilizes soft-packaging lithium battery cores liquid replenishing method |
| CN110398690A (en) * | 2018-04-20 | 2019-11-01 | 昆明新能源汽车工程技术中心有限公司 | Three electrode testing devices |
| CN117393966A (en) * | 2023-12-13 | 2024-01-12 | 陕西奥林波斯电力能源有限责任公司 | Repair device for large-capacity battery, repair bin and large-capacity battery |
| CN117393966B (en) * | 2023-12-13 | 2024-03-19 | 陕西奥林波斯电力能源有限责任公司 | Repair device for large-capacity battery, repair bin and large-capacity battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106654359B (en) | 2019-03-29 |
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