CN106450498A - Encapsulation type rechargeable lithium ion button battery - Google Patents
Encapsulation type rechargeable lithium ion button battery Download PDFInfo
- Publication number
- CN106450498A CN106450498A CN201611229769.6A CN201611229769A CN106450498A CN 106450498 A CN106450498 A CN 106450498A CN 201611229769 A CN201611229769 A CN 201611229769A CN 106450498 A CN106450498 A CN 106450498A
- Authority
- CN
- China
- Prior art keywords
- electrode
- lithium ion
- rubber
- wrapped
- button cell
- 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.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 25
- 238000005538 encapsulation Methods 0.000 title abstract 4
- 239000003792 electrolyte Substances 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims description 23
- 239000010409 thin film Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 239000010408 film Substances 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 8
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004021 metal welding Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
- H01M10/0427—Button 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/216—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for button or coin cells
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an encapsulation type rechargeable lithium ion button battery, and is applied to the technical field of lithium ion batteries. The encapsulation type rechargeable lithium ion button battery comprises a sealing shell, electrolyte and an electrode. The electrolyte is arranged in the sealing shell, the electrode is arranged in the electrolyte and is a spirally wound electrode, and an insulating and ion-impermeable film (12) is arranged on the outermost ring of the spirally wound electrode. The encapsulation type rechargeable lithium ion button battery has the advantages of compact structure, stability in use and long service life.
Description
Technical field
The present invention relates to a kind of lithium ion battery, particularly to a kind of rubber-wrapped chargeable lithium ion button cell.
Background technology
Rechargeable lithium ion batteries and lithium soft-package battery are widely used in hold electronic equipment, such as mobile phone and earphone
In.In especially little equipment such as sonifer, volume energy density is a critical consideration.Due to chargeable lithium ion
The requirement of battery volume, can guarantee that battery applications effect to reduce again while battery volume, now many electric using screw winding
Pole, but during increasing battery volume energy density, have and bring new technical problem, such as in Chinese patent application.
With. and United States Patent (USP) (US, B) in, directly using the electrode after winding, its outmost turns is after the coiling by pole piece or barrier film bag
Wrap up in and part is sticked adhesive tape and fixed.Because button cell need to make full use of internal limited space, the distance of box hat and electrode roll
Can be arranged close, its side wall can directly contact pole piece or barrier film.In charging process, the housing electricity of contact this part of electrode roll
Gesture is generally minimum, makes the deposition that the lithium ion in this region can make a mistake on box hat under the driving of electric potential difference.Stop
After charging, reduced and destroyed by the oxide layer that the electrons that the lithium depositing is provided lead to box hat surface.Especially in lug
With the welding position of box hat although non-directly contact electrode roll, but there is bimetallic due to welding, wherein the potential of lug is more
Height is it is easier to attracting the electronics being provided by lithium and leading to original oxide layer to be reduced.Lose the metal after oxide layer protection, cruelly
Dew can be corroded in the electrolytic solution, and generates new oxide-film, and so repeated multiple times, the oxide layer at lug position can be increasingly
Thickness, metal level more and more thinner, finally result in open circuit, battery cycle life is short；Furthermore just it is to ensure that the sealing of battery, knot
Structure is made too complicated, thus improve the production cost of battery and the complexity of technique.
Content of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, there is provided a kind of compact conformation, use
The rubber-wrapped chargeable lithium ion button cell of stable and long service life.
The technical solution adopted in the present invention is：The present invention includes capsul, the electrolyte being arranged in described capsul
And it is arranged at electrode in described electrolyte, described electrode is that the outmost turns of screw winding electrode and described screw winding electrode set
It is equipped with the thin film that insulation and ion can not turn on.
Further, the material of described thin film is polyethylene, or is polypropylene, or is polyester, or is polyimides.
Further, the thickness of described thin film is between 0.005-0.2 millimeter.
Further, described capsul includes cooperate inner cap and shell, and described inner cap includes top cover, perpendicular to described top
Lid interior stile, be located at the shoulder between described top cover and interior stile and the inner opening located at interior stile lower end, described shell bag
Include drain pan, the outer stile perpendicular to described drain pan and the outward opening, described inner cap and the described shell that are located at described outer stile upper end
Between be additionally provided with insulation cushion rubber, described insulation cushion rubber includes a stile and the foot side located at described stile lower end, described foot
While covering described inner opening, described outward opening and described shoulder position are mutually corresponding.
Further, described screw winding electrode includes first electrode, second electrode and barrier film, described first electrode and described
Second electrode is spaced to be arranged in described electrolyte with spiral-shaped, and described barrier film is arranged at described first electrode and described
In the interval of second electrode；First conductive lug is provided with described first electrode, described second electrode is provided with second and leads
Electrode ear, the described first conductive lug is welded with the inner surface of described top cover；The outmost turns of described screw winding electrode with described
It is provided with thin film between the inner surface of interior stile；Described drain pan inner surface setting has sheet metal, described second conductive lug and institute
State sheet metal welding.
Further, the one side of described sheet metal is fitted with described drain pan inner surface, and the another side of described sheet metal is provided with
Felt pad one with centre bore, described second conductive lug and described sheet metal welding portion be provided with felt pad two and described absolutely
Edge pad two is fitted with described felt pad one.
Further, described top cover inner surface is provided with the felt pad three with centre bore.
Further, the non-solder part of the affiliated first conductive lug is provided with insulating tape one；Described second conductive lug
Non-solder part and the part not covered by described felt pad two be provided with insulating tape two.
Further, described first electrode is anode, and described second electrode is negative electrode；Or described first electrode is negative electrode,
Described second electrode is anode.
The manufacture method of the present invention：It is circular or oval that described first electrode, barrier film and second electrode pass through winding formation
Described screw winding electrode, described barrier film is placed between described first electrode and second electrode, described first electrode and institute
The width mutually correspondence stating second electrode gradually decreases to adapt to the height change from described inner cap center to described shoulder flanges
Change；Described thin film covers the outermost layer in described screw winding electrode；Described first conductive lug and the inner surface of described top cover
Welding；Described insulation cushion rubber and described inner cap cooperation, described foot side covers described inner opening, pumps into electrolysis to described inner cap
Matter；Described second conductive lug and described sheet metal welding；Described shell and described inner cap cooperation, using described insulation cushion rubber
Plasticity is passed through described outward opening again and is fastened realization to a kind of described rubber-wrapped chargeable lithium ion button with the machinery of described shoulder
The sealing of battery.
The invention has the beneficial effects as follows：Due to the present invention include capsul, the electrolyte being arranged in described capsul and
It is arranged at the electrode in described electrolyte, described electrode is the outmost turns setting of screw winding electrode and described screw winding electrode
Have thin film it is seen then that between this thin film is in inside helical coil outmost turns and metal sidewall, prevent helical coil outmost turns barrier film or
Pole piece and side-wall metallic directly contact.We have found that outside is coated with the helical coil battery of thin film, lug in charge and discharge process
It is less likely to occur to rupture, thus ensureing that battery has higher reliability and longer cycle life, so, present configuration is tight
Gather, good seal performance and long service life.
Brief description
Fig. 1 is the structure cross-sectional schematic of the present invention；
Fig. 2 is the structural representation that described screw winding electrode is cooperated with described thin film.
Specific embodiment
As depicted in figs. 1 and 2, the present invention includes capsul, the electrolyte being arranged in described capsul and is arranged at institute
State the electrode in electrolyte, described electrode is provided with insulation simultaneously for the outmost turns of screw winding electrode and described screw winding electrode
And the thin film 12 that ion can not turn on；Described thin film 12 adopts mylar and described film thickness is 0.03 millimeter；Described spiral shell
The thin film 12 that one layer of the outer presence insulation of rotation rolled electrode and ion can not turn on, thus ensure battery have higher can
By property and longer cycle life.
In the present embodiment, described capsul includes cooperate inner cap and shell, and described inner cap includes top cover 1, vertical
In described top cover 1 interior stile 2, be located at shoulder 3 between described top cover 1 and interior stile 2 and open in interior stile 2 lower end
Mouthful, described shell includes drain pan 5, the outer stile 6 perpendicular to described drain pan 5 and the outward opening 7 being located at described outer stile 6 upper end,
It is additionally provided with insulation cushion rubber 8, described insulation cushion rubber 8 includes a stile and located at described vertical between described inner cap and described shell
In the foot of lower end, described foot side covers described inner opening, and described outward opening 7 and described shoulder 3 position are mutually corresponding.
In the present embodiment, described screw winding electrode includes first electrode 9, second electrode 10 and barrier film 11, and described
One electrode 9 and described second electrode 10 is spaced is arranged in described electrolyte with spiral-shaped, described barrier film 11 is arranged at
In the interval of described first electrode 9 and described second electrode 10；First conductive lug 91, institute are provided with described first electrode 9
State and the second conductive lug 101 is provided with second electrode 10, the described first conductive lug 91 is welded with the inner surface of described top cover 1
Connect；It is provided with thin film 12 between the inner surface of the outmost turns of described screw winding electrode and described interior stile 2；In described drain pan 5
Surface is provided with sheet metal 13, and the described second conductive lug 101 is welded with described sheet metal 13.
In the present embodiment, the one side of described sheet metal 13 is fitted with described drain pan 5 inner surface, described sheet metal 13 another
Simultaneously it is provided with the felt pad 1 with centre bore, the described second conductive lug 101 and described sheet metal 13 welding portion setting
There is felt pad 2 15 and described felt pad 2 15 is fitted with described felt pad 1；Described top cover 1 inner surface setting You Dai center
The felt pad 3 16 in hole.
In the present embodiment, the non-solder part of the affiliated first conductive lug 91 is provided with insulating tape 1；Described
The non-solder part of two conductive lugs 101 and the part not covered by described felt pad 2 15 are provided with insulating tape 2 102.
In the present embodiment, or described first electrode 9 be negative electrode, described second electrode 10 be anode.
The manufacture method of described rubber-wrapped chargeable lithium ion button cell：Described first electrode 9, barrier film 11 and the second electricity
Pole 10 is passed through winding and is formed circular or oval described screw winding electrode, and described barrier film 11 is placed on described first electrode 9
And second electrode 10 between, the width of described first electrode 9 and described second electrode 10 mutually correspondence gradually decrease with adapt to from
Described inner cap center is to the height change at described shoulder 3 edge；Described thin film 12 covers in described screw winding electrode
Outer layer；Described first conductive lug 91 is welded with the inner surface of described top cover 1；Described insulation cushion rubber 8 and described inner cap cooperation, institute
State foot side and cover described inner opening, pump into electrolyte to described inner cap；Described second conductive lug 101 and described sheet metal 13
Welding；Described shell and described inner cap cooperation, the plasticity using described insulation cushion rubber 8 passes through described outward opening 7 and described shoulder again
The machinery in portion 3 fastens the sealing realized to described rubber-wrapped chargeable lithium ion button cell.
The present invention is applied to the technical field of lithium ion battery.
Although embodiments of the invention to be described with practical solution, do not constitute the limit to implication of the present invention
System, for those skilled in the art, according to this specification to the modification of its embodiment and with combining of other schemes be all
Obviously.
Claims (9)
1. a kind of rubber-wrapped chargeable lithium ion button cell, it includes capsul, the electrolyte being arranged in described capsul
And be arranged at electrode in described electrolyte it is characterised in that：Described electrode is screw winding electrode and described screw winding electricity
The outmost turns of pole are provided with the thin film that insulation and ion can not turn on（12）.
2. rubber-wrapped chargeable lithium ion button cell according to claim 1 it is characterised in that：Described thin film（12）'s
Material is polyethylene, or is polypropylene, or is polyester, or is polyimides.
3. rubber-wrapped chargeable lithium ion button cell according to claim 1 it is characterised in that：Described thin film（12）'s
Thickness is between 0.005-0.2 millimeter.
4. rubber-wrapped chargeable lithium ion button cell according to claim 1 it is characterised in that：Described capsul includes
Cooperate inner cap and shell, and described inner cap includes top cover（1）, perpendicular to described top cover（1）Interior stile（2）, be located at described
Top cover（1）With interior stile（2）Between shoulder（3）And located at interior stile（2）The inner opening of lower end, described shell includes drain pan
（5）, perpendicular to described drain pan（5）Outer stile（6）And it is located at described outer stile（6）The outward opening of upper end（7）, described inner cap and
It is additionally provided with insulation cushion rubber between described shell（8）, described insulation cushion rubber（8）Including a stile with located at described stile lower end
Foot side, described foot side covers described inner opening, described outward opening（7）With described shoulder（3）Position is mutually corresponding.
5. rubber-wrapped chargeable lithium ion button cell according to claim 4 it is characterised in that：Described screw winding electricity
Pole includes first electrode（9）, second electrode（10）And barrier film（11）, described first electrode（9）With described second electrode（10）Phase
Mutually interval is arranged in described electrolyte with spiral-shaped, described barrier film（11）It is arranged at described first electrode（9）With described
Two electrodes（10）Interval in；Described first electrode（9）On be provided with the first conductive lug（91）, described second electrode（10）On
It is provided with the second conductive lug（101）, the described first conductive lug（91）With described top cover（1）Inner surface welding；Described thin
Film（12）It is arranged on the outmost turns of described screw winding electrode and described interior stile（2）Inner surface between；Described drain pan（5）Interior
Surface is provided with sheet metal（13）, the described second conductive lug（101）With described sheet metal（13）Welding.
6. rubber-wrapped chargeable lithium ion button cell according to claim 5 it is characterised in that：Described sheet metal（13）
One side and described drain pan（5）Inner surface is fitted, described sheet metal（13）Another side be provided with the felt pad one with centre bore
（14）, the described second conductive lug（101）With described sheet metal（13）Welding portion is provided with felt pad two（15）And it is described exhausted
Edge pad two（15）With described felt pad one（14）Laminating.
7. rubber-wrapped chargeable lithium ion button cell according to claim 6 it is characterised in that：Described top cover（1）Interior
Surface is provided with the felt pad three with centre bore（16）.
8. rubber-wrapped chargeable lithium ion button cell according to claim 7 it is characterised in that：Affiliated first conductive electrode
Ear（91）Non-solder part be provided with insulating tape one（92）；Described second conductive lug（101）Non-solder part and not
By described felt pad two（15）The part covering is provided with insulating tape two（102）.
9. rubber-wrapped chargeable lithium ion button cell according to claim 5 it is characterised in that：Described first electrode
（9）For anode, described second electrode（10）For negative electrode；Or described first electrode（9）For negative electrode, described second electrode（10）For
Anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229769.6A CN106450498A (en) | 2016-12-28 | 2016-12-28 | Encapsulation type rechargeable lithium ion button battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229769.6A CN106450498A (en) | 2016-12-28 | 2016-12-28 | Encapsulation type rechargeable lithium ion button battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106450498A true CN106450498A (en) | 2017-02-22 |
Family
ID=58215426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229769.6A Pending CN106450498A (en) | 2016-12-28 | 2016-12-28 | Encapsulation type rechargeable lithium ion button battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106450498A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682755A (en) * | 2018-05-09 | 2018-10-19 | 广东弘捷新能源有限公司 | Button cell and its manufacturing method |
| CN109148932A (en) * | 2018-08-23 | 2019-01-04 | 曙鹏科技（深圳）有限公司 | A kind of minicell group and its manufacturing method |
| WO2020036440A1 (en) * | 2018-08-16 | 2020-02-20 | 주식회사 엘지화학 | Secondary battery |
| CN111463395A (en) * | 2020-04-24 | 2020-07-28 | 福建南平延平区南孚新能源科技有限公司 | Button cell production method capable of reducing false welding rate and button cell produced by button cell production method |
| CN112635878A (en) * | 2021-01-19 | 2021-04-09 | 广东至力科技有限公司 | Miniature lithium ion battery with welding protection washer |
| JP2021530843A (en) * | 2018-08-16 | 2021-11-11 | エルジー・ケム・リミテッド | Rechargeable battery |
| US20210384482A1 (en) * | 2020-06-05 | 2021-12-09 | Chongqing Vdl Electronics Co., Ltd. | Button-type lithium ion battery with metal housing |
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|---|---|---|---|---|
| CA2331602A1 (en) * | 1992-11-30 | 1994-05-31 | Canon Kabushiki Kaisha | Method of manufacturing a positive electrode active material of a secondary battery |
| JP2001085066A (en) * | 1999-07-09 | 2001-03-30 | Matsushita Electric Ind Co Ltd | Nonaqueous electrolyte battery |
| US6443999B1 (en) * | 2000-03-16 | 2002-09-03 | The Gillette Company | Lithium cell with heat formed separator |
| CN104332647A (en) * | 2013-04-19 | 2015-02-04 | 王昉 | Rechargeable lithium ion button cell battery |
| CN206422171U (en) * | 2016-12-28 | 2017-08-18 | 珠海市至力电池有限公司 | Rubber-wrapped chargeable lithium ion button cell |
-
2016
- 2016-12-28 CN CN201611229769.6A patent/CN106450498A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2331602A1 (en) * | 1992-11-30 | 1994-05-31 | Canon Kabushiki Kaisha | Method of manufacturing a positive electrode active material of a secondary battery |
| JP2001085066A (en) * | 1999-07-09 | 2001-03-30 | Matsushita Electric Ind Co Ltd | Nonaqueous electrolyte battery |
| US6443999B1 (en) * | 2000-03-16 | 2002-09-03 | The Gillette Company | Lithium cell with heat formed separator |
| CN104332647A (en) * | 2013-04-19 | 2015-02-04 | 王昉 | Rechargeable lithium ion button cell battery |
| CN206422171U (en) * | 2016-12-28 | 2017-08-18 | 珠海市至力电池有限公司 | Rubber-wrapped chargeable lithium ion button cell |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682755A (en) * | 2018-05-09 | 2018-10-19 | 广东弘捷新能源有限公司 | Button cell and its manufacturing method |
| WO2020036440A1 (en) * | 2018-08-16 | 2020-02-20 | 주식회사 엘지화학 | Secondary battery |
| JP2021530843A (en) * | 2018-08-16 | 2021-11-11 | エルジー・ケム・リミテッド | Rechargeable battery |
| JP7102674B2 (en) | 2018-08-16 | 2022-07-20 | エルジー エナジー ソリューション リミテッド | Secondary battery |
| CN109148932A (en) * | 2018-08-23 | 2019-01-04 | 曙鹏科技（深圳）有限公司 | A kind of minicell group and its manufacturing method |
| CN111463395A (en) * | 2020-04-24 | 2020-07-28 | 福建南平延平区南孚新能源科技有限公司 | Button cell production method capable of reducing false welding rate and button cell produced by button cell production method |
| CN111463395B (en) * | 2020-04-24 | 2021-01-15 | 福建南平延平区南孚新能源科技有限公司 | Button cell production method capable of reducing false welding rate and button cell produced by button cell production method |
| US20210384482A1 (en) * | 2020-06-05 | 2021-12-09 | Chongqing Vdl Electronics Co., Ltd. | Button-type lithium ion battery with metal housing |
| US11901569B2 (en) * | 2020-06-05 | 2024-02-13 | Chongqing Vdl Electronics Co., Ltd. | Button-type lithium ion battery with metal housing |
| CN112635878A (en) * | 2021-01-19 | 2021-04-09 | 广东至力科技有限公司 | Miniature lithium ion battery with welding protection washer |
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Application publication date: 20170222 |