CN103682250A - Lithium ion battery pole piece structure resisting to high-strength vibration and soldering method for lithium ion battery pole piece structure - Google Patents
Lithium ion battery pole piece structure resisting to high-strength vibration and soldering method for lithium ion battery pole piece structure Download PDFInfo
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- CN103682250A CN103682250A CN201310603891.5A CN201310603891A CN103682250A CN 103682250 A CN103682250 A CN 103682250A CN 201310603891 A CN201310603891 A CN 201310603891A CN 103682250 A CN103682250 A CN 103682250A
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- Prior art keywords
- negative electrode
- negative
- pole piece
- lithium
- electrode lug
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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 relates to a pole piece structure in a lithium ion battery and the technical field of soldering, in particular to a lithium ion battery pole piece structure resisting to high-strength vibration and a soldering method for the lithium ion battery pole piece structure. The lithium ion battery pole piece structure resisting to high-strength vibration comprises a positive pole piece and a negative pole piece, wherein the negative pole piece comprises a rolling end and a tail end; two negative tabs, namely, a middle negative tab and an end negative tab respectively are arranged on the negative pole piece; the end negative tab is arranged at the tail end of the negative pole piece; the middle negative tab is arranged in a position one third or two thirds far away from the rolling end of negative pole piece; the positive pole piece is provided with an empty aluminium foil part corresponding to the middle negative tab of the negative pole piece. The lithium ion battery pole piece structure provided by the invention has the characteristics of simple structure, high vibration resistance and high safety performance; according to the soldering method, the two negative tabs are soldered with a battery bottom case after being soldered, so that the soldering is firm and the circumstance of unsoldering or tab fracture is not liable to happen.
Description
Technical field
The present invention relates to pole piece structure and welding technology field in lithium ion battery, be specifically related to a kind of electrodes of lithium-ion batteries structure and welding method thereof of anti-high strong vibration.
Background technology
Along with scientific and technical development, the application of power lithium-ion battery is also more and more extensive.The consideration requiring for applied environment, some high-end electric tools not only need there is large discharge-rate with power lithium-ion battery, long cycle life, low self discharge and high security performance, also needing has stronger resistance to shock.
As shown in Figures 1 and 2, in order to reduce the internal resistance of power lithium-ion battery, negative plate 1 arranges two negative electrode lugs 2 to traditional power lithium-ion battery positive/negative plate profile conventionally, and positive plate 4 arranges one or two anode ear 5.
The anode ear 5 of traditional power lithium ion battery is arranged at the medium position by positive plate 4, and negative electrode lug 2 is located at negative plate 1 two ends end to end.This project organization is simple, but while being applied to power lithium-ion battery, but cannot reach the anti-vibration demand of some electric tools.The dynamic lithium battery group that several monomer battery cores combine because serving as reasons, battery pack in groups not only needs have good chemical property and security performance, and need to there is strong resistance to shock, but the battery roll core that uses traditional power lithium-ion battery positive/negative plate 1 to reel and form, in the situation that runs into strong vibration or vibrate suddenly, easily there is phenomenon of rupture in positive and negative lug 2, this has brought great risk to the normal use of battery pack.
Summary of the invention
The object of the invention is for deficiency of the prior art, a kind of electrodes of lithium-ion batteries structure of anti-high strong vibration is provided, it has simple in structure, anti-vibration, shock resistance, anticollision performance is strong, security performance is high feature.
Another object of the present invention is for deficiency of the prior art, a kind of welding method of electrodes of lithium-ion batteries structure of anti-high strong vibration is provided, it has firm welding, improves anti-vibration, shock resistance, the anticollision performance of lithium ion battery, extends the useful life of lithium ion battery.
Object of the present invention is achieved through the following technical solutions:
A kind of electrodes of lithium-ion batteries structure of anti-high strong vibration, comprise positive plate and negative plate, described negative plate includes volume end and tail end, on described negative plate, be provided with two negative electrode lugs, two negative electrode lugs are respectively middle part negative electrode lug and end negative electrode lug, described end negative electrode lug is arranged at the tail end of described negative plate, and described middle part negative electrode lug is arranged at 1/3～2/3 place that enters volume end of the described negative plate of distance, and the negative electrode lug place, middle part of the corresponding described negative plate of described positive plate is provided with sky aluminium foil portion.
Wherein, gummed paper posts in described empty aluminium foil portion.
Wherein, the width of described gummed paper is more than or equal to the width of described empty aluminium foil portion.
Wherein, described gummed paper covers described empty aluminium foil portion and to both sides, respectively extends 1mm.
Wherein, the width of described gummed paper is more than or equal to the width of middle part negative electrode lug.
Wherein, gummed paper is all posted on the solder side two sides of the solder side of described anode ear and described positive plate, middle part negative electrode lug and end negative electrode lug and described negative plate.
Wherein, the face of weld at the some back welding place of described negative electrode lug is provided with concavo-convex frosted layer.
A welding method for the electrodes of lithium-ion batteries structure of anti-high strong vibration, after described positive plate and negative plate are coiled into battery roll core, carry out spot welding with battery drain pan again after described middle part negative electrode lug and end negative pole lug welding are bonding and is connected.
Further, after described positive plate and negative plate are coiled into battery roll core, before battery core winding into shell, first utilize ultrasonic bonding machine to weld together two negative electrode lugs, then be connected with the spot welding of battery drain pan.
Further, described electrodes of lithium-ion batteries structure is rolled into battery roll core, before battery core winding into shell, use ultrasonic bonding machine seals of burn-oning respectively two negative electrode lug relevant positions, the weldering seal when bending negative electrode lug and entering shell on two negative electrode lugs can overlap and carry out spot welding with battery drain pan again and be connected.
Beneficial effect of the present invention: the present invention is provided with two negative electrode lugs, can reduce the internal resistance of battery, one of them negative electrode lug is arranged to 1/3～2/3 place that enters volume end of negative plate, another negative electrode lug is arranged at the tail end of negative plate, be wound into after battery roll core, the bending place of middle part negative electrode lug is farther apart from centre bore.By testing drum, prove, negative electrode lug of the present invention is difficult for sealing-off, two negative electrode lugs are firmly welded on box hat base plate, battery roll core can not reverse, anode ear can not be damaged yet, even in the environment of high strong vibration and impact, the voltage of battery core and internal resistance are substantially constant, and battery can normally be used.And the battery roll core that the positive/negative plate that uses traditional structure is rolled into, be positioned at after negative electrode lug that negative plate enters volume end is rolled into core, it is almost positioned at the middle part of battery roll core, while doing testing drum, be positioned at negative electrode lug that negative plate enters volume end and after test half an hour, there will be the situation of sealing-off or fracture, battery roll core can rotate along with cylinder, causes anode ear to rupture subsequently, cause battery core to be scrapped, battery pack cannot be used.
Another beneficial effect of the present invention: electric resistance welding principle is exactly Q=I
2* R*T, two lugs of anticathode, I is the same, T is the same, only have R different, traditional method is after two negative electrode lug bendings, to carry out a back welding, and the contact internal resistance of two lugs is different so, the general tab welding by box hat base plate is more firm, that lug above often of sealing-off, by welding method of the present invention, can make the internal resistance of two negative electrode lugs the same, point back welding is respond well, uniformity and steadiness while strengthening its welding.
Accompanying drawing explanation
Utilize accompanying drawing to be described further invention, but embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, is not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of traditional lithium battery cathode plate;
Fig. 2 is the structural representation of traditional positive plate of lithium battery;
Fig. 3 is the negative plate structure schematic diagram of the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration of the present invention;
Fig. 4 is the positive plate structural representation of the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration of the present invention;
Fig. 5 is that the positive plate structure of the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration of the present invention is rolled into the negative pole vertical view after battery roll core.
Reference numeral comprises: 1---negative plate 2---negative electrode lug 3---gummed paper
4---positive plate 5---anode ear 6---middle part negative electrode lug 7---end negative electrode lugs
8---empty aluminium foil portion 9---battery roll core.
Embodiment
The invention will be further described with the following Examples.
embodiment 1
As shown in Figures 3 to 5, a kind of electrodes of lithium-ion batteries structure of anti-high strong vibration, comprise positive plate 4 and negative plate 1, described negative plate 1 includes volume end and tail end, on described negative plate 1, be provided with two negative electrode lugs, comprise middle part negative electrode lug 6 and end negative electrode lug 7, the internal resistance that two negative electrode lugs can reduce battery is set, described end negative electrode lug 7 is arranged at the tail end of described negative plate 1, described middle part negative electrode lug 6 is arranged at 1/3～2/3 place that enters volume end of the described negative plate 1 of distance, after electrodes of lithium-ion batteries structure is rolled into battery roll core 9, negative electrode lug 6 bending places, middle part are farther apart from centre bore, the probability that sealing-off fracture occurs reduces a lot than traditional negative electrode lug that is arranged at two ends.The tail end of the corresponding described negative plate 1 of described positive plate 4 is provided with anode ear 5, and middle part negative electrode lug 6 places of the corresponding described negative plate 1 of described positive plate 4 are provided with sky aluminium foil portion 8.Corresponding negative plate 1 place does not have coated graphite layer herein, if corresponding positive plate 4 has slurry herein, during charging, the lithium ion of positive plate 4 can move on the negative plate 1 at this place, cause and analyse lithium phenomenon, the Li dendrite forming can cause a hidden trouble to the fail safe of battery core, therefore sky aluminium foil portion 8 need to be set.Anode ear 5 can be positioned at arbitrary position of positive plate 4, but preferred, anode ear 5 is arranged at the inclined to one side medium position of positive plate 4, if because anode ear 5 is positioned at the end of positive plate 4, internal resistance meeting is relatively large.If anode ear 5, just corresponding to the location overlap of middle part negative electrode lug 6, does not need to arrange sky aluminium foil portion 8, but after entering volume, anode ear 5 is overlapping with middle part negative electrode lug 6, and the folded portion of this volume is blocked up, is unfavorable for the moulding of battery roll core 9.
Gummed paper 3 posts, capable of preventing short circuit phenomenon in described empty aluminium foil portion 8.
The width of described gummed paper 3 is no less than the width of described empty aluminium foil portion 8.Gummed paper 3 covers empty aluminium foil portion 8 completely, prevent from allowing sky aluminium foil portion 8 regions directly and negative pole graphite district corresponding, easily cause micro-short circuit, self-discharge of battery increase.
Described gummed paper 3 covers described empty aluminium foil portion 8 backward both sides and extends 1mm, can prevent micro-short circuit, also can too not waste material.
The width of described gummed paper 3 is more than or equal to the width of middle part negative electrode lug 6, prevents to analyse lithium phenomenon.
Described anode ear 5 all posts gummed paper 3 with solder side, middle part negative electrode lug 6 and the end negative electrode lug 7 of described positive plate 4 with the solder side two sides of described negative plate 1.Because positive and negative lug is all by corresponding foil in ultra-sonic welded, it is serious that ultrasonic bond Yin He lug edge produces burr, needs to use gummed paper 3 to cover this region.
The face of weld of the some back welding of described negative electrode lug is provided with concavo-convex frosted layer, increases the surface area of face of weld, and when energising welding, its heating is fast and caloric value is large, and welding more fast firmly.
embodiment 2
A welding method for the electrodes of lithium-ion batteries structure of anti-high strong vibration, after described positive plate 4 and negative plate 1 are coiled into battery roll core 9, carry out spot welding with battery drain pan again after described middle part negative electrode lug 6 and end negative electrode lug 7 weld bonds and is connected.The general electric resistance welding that adopts welds, and electric resistance welding is by electrode, to exert pressure after workpiece combination, the method for utilizing electric current to weld by the contact-making surface of joint and the resistance heat of adjacent domain generation, and electric resistance welding principle is exactly Q=I
2* R*T, adopts welding method of the present invention, can make middle part negative electrode lug 6 the same with the internal resistance of end negative electrode lug 7, and the firm degree varies sample of two negative pole lug weldings, is difficult for occurring sealing-off.
Further, described electrodes of lithium-ion batteries structure is rolled into battery roll core 9, before battery roll core 9 enters shell, first utilizes ultrasonic bonding machine to weld together two negative electrode lugs, then be connected with the spot welding of battery drain pan.Ultrasonic bonding machine utilizes ultrasonic wave two negative electrode lugs can be merged completely, and its firm welding degree is better, and the phenomenon of a negative electrode lug sealing-off can not occur.
Further, described electrodes of lithium-ion batteries structure is rolled into battery roll core 9, before battery roll core 9 enters shell, use the ultrasonic bonding machine seal of burn-oning respectively two negative electrode lug relevant positions, when bending negative electrode lug enters shell, weldering on two negative electrode lugs print can overlap bonding after, it carries out spot welding with battery drain pan again and is connected.During welding, weldering prints and can overlap, and coefficient of friction when two negative electrode lugs print enhancing weld bonds by weldering during point back welding, is difficult for division.
To adopt the lithium ion battery of welding method welding of the present invention to carry out testing drum.Testing drum is that the lithium battery group preparing is placed in testing drum device, by testing drum device rotarily drive lithium battery group in cylinder, roll, under fall, collide, the Vibration Condition that simulation lithium battery group likely runs in real work carries out oscillation intensity test, finally to carrying out resistance test through the lithium battery group of test, observe it whether variation of internal resistance occurs, thereby judge whether its lug the increase that fracture causes internal resistance occurs.Testing drum device comprises a cylinder body, cylinder body constantly rotates cylinder by power set, lithium battery group is placed in cylinder body inside, in the time of cylinder body rotation, drive lithium battery group constantly to stir in inside, simulate the situation that it is subject to various impacts, collision and vibration, whether the internal resistance situation of last test lithium battery group changes.
Concrete testing process is:
Choose 5 combinations of monomer battery core that lithium battery pole slice of the present invention is made, 5 monomer battery cores are put into the mould of plastics of certain size, by the screw on four jiaos of cuboids, this cuboid is sealed completely, the power brick after sealing is put into cylinder.Cylinder body is provided with three independently operating rooms, each operating room can put into 1 power brick, cylinder is by a motor driving, and the rotary speed of establishing cylinder is 60 revs/min, takes out power brick every 1 hour, unload screw, wherein voltage and the internal resistance of each monomer battery core of test, has recorded data, and cylinder experiment is carried out 4 hours continuously, by the voltage every 1 hour test unit battery core and internal resistance, judge whether the positive and negative lug in battery core has fracture.Retest 5 Battery pack bags.
Alternative is got 3 groups of monomer battery cores of preparing of tradition lithium battery pole slices and is carried out combined test according to above-mentioned steps.Test result is as shown in the table.
As can be seen from the above table, utilize lithium battery prepared by lithium battery pole piece structure of the present invention to pass through after test, its internal resistance changes little, but the battery pack of comparative example is in test process, the situation that part internal resistance of single cell increases suddenly can occur, illustrate at test process, there is not crack conditions in lithium battery pole ear of the present invention, even if battery stands strong vibration, impact and collision, also can normally use.And traditional lithium battery pole ear easily ruptures, affect the normal use of battery.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. the electrodes of lithium-ion batteries structure of an anti-high strong vibration, it is characterized in that: comprise positive plate and negative plate, described negative plate includes volume end and tail end, on described negative plate, be provided with two negative electrode lugs, two negative electrode lugs are respectively middle part negative electrode lug and end negative electrode lug, described end negative electrode lug is arranged at the tail end of described negative plate, described middle part negative electrode lug is arranged at 1/3～2/3 place that enters volume end of the described negative plate of distance, and the negative electrode lug place, middle part of the corresponding described negative plate of described positive plate is provided with sky aluminium foil portion.
2. the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration according to claim 1, is characterized in that: gummed paper posts in described empty aluminium foil portion.
3. the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration according to claim 2, is characterized in that: the width of described gummed paper is more than or equal to the width of described empty aluminium foil portion.
4. the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration according to claim 2, is characterized in that: described gummed paper covers described empty aluminium foil portion and to both sides, respectively extends 1mm.
5. the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration according to claim 2, is characterized in that: the width of described gummed paper is more than or equal to the width of described middle part negative electrode lug.
6. the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration according to claim 1, is characterized in that: gummed paper is all posted on the solder side two sides of the solder side of described anode ear and described positive plate, middle part negative electrode lug and end negative electrode lug and described negative plate.
7. the electrodes of lithium-ion batteries structure of a kind of anti-high strong vibration according to claim 1, is characterized in that: the face of weld at the some back welding place of described negative electrode lug is provided with concavo-convex frosted layer.
8. the welding method of the electrodes of lithium-ion batteries structure of the anti-high strong vibration described in a claim 1-7 any one, it is characterized in that: after described positive plate and negative plate are coiled into battery roll core, after described middle part negative electrode lug and end negative pole lug welding are bonding, carry out spot welding with battery drain pan again and be connected.
9. welding method according to claim 8, it is characterized in that: after described positive plate and negative plate are coiled into battery roll core, before battery core winding into shell, first utilize ultrasonic bonding machine to weld together two negative electrode lugs, then two negative electrode lugs are connected with the spot welding of battery drain pan.
10. welding method according to claim 8, it is characterized in that: described electrodes of lithium-ion batteries structure is rolled into battery roll core, before battery core winding into shell, use ultrasonic bonding machine seals of burn-oning respectively two negative electrode lug relevant positions, the weldering seal when bending negative electrode lug and entering shell on two negative electrode lugs can overlap and carry out spot welding with battery drain pan again and be connected.
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| CN201310603891.5A CN103682250B (en) | 2013-11-25 | 2013-11-25 | A kind of electrodes of lithium-ion batteries structure of anti-high-strength vibration and welding method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405422A (en) * | 2015-07-27 | 2017-02-15 | 宁德新能源科技有限公司 | Lithium ion battery pole piece expanding fracture test method |
| CN113948759A (en) * | 2021-10-18 | 2022-01-18 | 蜻蜓实验室(深圳)有限公司 | Battery monomer and lithium ion battery pack |
| CN114034457A (en) * | 2021-11-15 | 2022-02-11 | 北京理工大学 | Drum-type impact test device and method for block slot key impact |
| CN117080689A (en) * | 2023-10-18 | 2023-11-17 | 山东亿博新能源科技有限公司 | Negative electrode welding method of sodium ion battery |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010068754A (en) * | 2000-01-10 | 2001-07-23 | 김순택 | Electrode of sealed battery |
| JP2006302509A (en) * | 2005-04-15 | 2006-11-02 | Sanyo Electric Co Ltd | Battery |
| CN201087907Y (en) * | 2007-03-23 | 2008-07-16 | 深圳市邦凯电子有限公司 | Negative electrode piece structure of lithium battery |
| CN101227015A (en) * | 2007-12-25 | 2008-07-23 | 天津力神电池股份有限公司 | Cylinder type lithium ion battery with high power rate and high safety performance |
| CN101425605A (en) * | 2007-11-01 | 2009-05-06 | 深圳市慧通天下科技股份有限公司 | Nickel-cobalt lithium manganate high power lithium ionic cell |
| CN102117931A (en) * | 2009-12-31 | 2011-07-06 | 珠海光宇电池有限公司 | High-rate cylindrical lithium ion battery with anode of modified lithium manganese oxide |
| CN202308192U (en) * | 2011-10-17 | 2012-07-04 | 深圳市动力聚能科技有限公司 | Secure lithium ion battery |
| CN202917578U (en) * | 2012-10-24 | 2013-05-01 | 广东凯德能源科技有限公司 | Positive-negative plate structure of rate-type lithium ion battery |
| CN203644874U (en) * | 2013-11-25 | 2014-06-11 | 广东凯德能源科技有限公司 | Lithium ion battery pole piece |
-
2013
- 2013-11-25 CN CN201310603891.5A patent/CN103682250B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010068754A (en) * | 2000-01-10 | 2001-07-23 | 김순택 | Electrode of sealed battery |
| JP2006302509A (en) * | 2005-04-15 | 2006-11-02 | Sanyo Electric Co Ltd | Battery |
| CN201087907Y (en) * | 2007-03-23 | 2008-07-16 | 深圳市邦凯电子有限公司 | Negative electrode piece structure of lithium battery |
| CN101425605A (en) * | 2007-11-01 | 2009-05-06 | 深圳市慧通天下科技股份有限公司 | Nickel-cobalt lithium manganate high power lithium ionic cell |
| CN101227015A (en) * | 2007-12-25 | 2008-07-23 | 天津力神电池股份有限公司 | Cylinder type lithium ion battery with high power rate and high safety performance |
| CN102117931A (en) * | 2009-12-31 | 2011-07-06 | 珠海光宇电池有限公司 | High-rate cylindrical lithium ion battery with anode of modified lithium manganese oxide |
| CN202308192U (en) * | 2011-10-17 | 2012-07-04 | 深圳市动力聚能科技有限公司 | Secure lithium ion battery |
| CN202917578U (en) * | 2012-10-24 | 2013-05-01 | 广东凯德能源科技有限公司 | Positive-negative plate structure of rate-type lithium ion battery |
| CN203644874U (en) * | 2013-11-25 | 2014-06-11 | 广东凯德能源科技有限公司 | Lithium ion battery pole piece |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405422A (en) * | 2015-07-27 | 2017-02-15 | 宁德新能源科技有限公司 | Lithium ion battery pole piece expanding fracture test method |
| CN113948759A (en) * | 2021-10-18 | 2022-01-18 | 蜻蜓实验室(深圳)有限公司 | Battery monomer and lithium ion battery pack |
| CN114034457A (en) * | 2021-11-15 | 2022-02-11 | 北京理工大学 | Drum-type impact test device and method for block slot key impact |
| CN117080689A (en) * | 2023-10-18 | 2023-11-17 | 山东亿博新能源科技有限公司 | Negative electrode welding method of sodium ion battery |
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