CN108288688A - A kind of column lithium ion battery lug optimization structure - Google Patents
A kind of column lithium ion battery lug optimization structure Download PDFInfo
- Publication number
- CN108288688A CN108288688A CN201810259379.6A CN201810259379A CN108288688A CN 108288688 A CN108288688 A CN 108288688A CN 201810259379 A CN201810259379 A CN 201810259379A CN 108288688 A CN108288688 A CN 108288688A
- Authority
- CN
- China
- Prior art keywords
- shell
- positive pole
- pole ear
- gummed paper
- lug
- 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
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 18
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000005457 optimization Methods 0.000 title description 5
- 239000003792 electrolyte Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of column lithium ion battery lugs to optimize structure,Including shell,Positive plate,Negative plate,Positive pole ear,Negative lug,Upper gasket,Lower gasket,Block and the first gummed paper,The positive plate and negative plate are wound into cylindrical type and place inside the housing after being separated by diaphragm paper,The bottom and top of enclosure are respectively arranged with lower gasket and Upper gasket,The top sealed set of shell has block,The end of positive pole ear is connect with block,The end of negative lug and the inner wall of shell connect,The second gummed paper is also pasted on the positive pole ear,The lower end of second gummed paper is overlapped with the upper end of the first gummed paper,The program solves lug rubberizing because fabrication error reason causes rubberizing not encase positive pole ear so that positive pole ear contacts the security risk that short circuit occurs with shell,The safety of finished product cylindrical lithium ion battery is set to be greatly improved,And due to simple for process,In process of production,It operates steadily when cooperation manual processing or semi-automatic production.
Description
Technical field
The present invention relates to column lithium ion battery technical field, specially a kind of column lithium ion battery lug optimization
Structure.
Background technology
With the continuous improvement of the battery capacities such as charger baby, notebook, electric bicycle, the chemical substance in battery is more next
It is more, so lithium ion battery security must also be paid much attention to.18650 cylindrical lithium ion batteries mainly by shell,
Block, positive plate, negative plate, diaphragm, Upper gasket, lower gasket and electrolyte are constituted, and specific composition is by positive/negative plate soldering polar ear
After wrap high tempreture tape, positive/negative plate is separated with diaphragm paper and is wound into cylindrical type, upper and lower gasket is put well and places into weldering in box hat
Block is connected, molding is sealed after being poured in electrolyte.When 18650 self discharge of dissection and analysis cylindrical type is big or the battery cores such as short circuit,
It opens block and examines and will often find that anode ear welding block vicinity, lug are not encased by high tempreture tape and occur slightly
Black trace is burnt, so there are serious problems for safety.The high temperature generated when short-circuit serious can lead to thermal expansion internal combustion, make inside battery core
Electrolyte is decomposed, and destroys chemical property inside battery core, and generate bulk gas due to decomposing, internal pressure is caused to cross conference
It sets off an explosion, inside battery positive and negative pole material contacts with each other short-circuit and causes spark, and it is tight that explosion-proof cap releases gas and flare etc.
Weight consequence, main cause be because to patch anode ear gummed paper when do not encase lug completely, after sealing anode ear bending after with side
Box hat shell (cathode) contact causes short circuit.
Invention content
The technical problem to be solved by the present invention is to overcome the existing defects, and it is excellent to provide a kind of column lithium ion battery lug
Change structure, the structure of lug is optimized, to prevent inside lithium ion cell positive and negative anodes from contacting with each other, effectively avoids battery short
Road can effectively solve the problems in background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of column lithium ion battery lug optimization knot
Structure, including shell, positive plate, negative plate, positive pole ear, negative lug, Upper gasket, lower gasket, block and the first gummed paper, it is described
The end of positive plate and negative plate is respectively welded positive pole ear and negative lug, the length of the positive pole ear and negative lug
It is all higher than the width of positive plate and negative plate, the paste outside of positive pole ear has the first gummed paper, the positive plate and negative plate logical
It crosses after diaphragm paper separates and is wound into cylindrical type placement inside the housing, the bottom and top of enclosure are respectively arranged with lower gasket
And Upper gasket, the top sealed set of shell have block, the end of positive pole ear to be connect with block, the end of negative lug with it is outer
The inner wall of shell connects, and the inside of shell is full of electrolyte, is also pasted with the second gummed paper on the positive pole ear, under the second gummed paper
End is overlapped with the upper end of the first gummed paper.
As a preferred technical solution of the present invention, the inside of the shell is additionally provided with dead ring, the bottom of dead ring
Face is contacted with Upper gasket, and the upper surface of dead ring is contacted with the bottom surface of block, and the outer ring surface of dead ring and the medial surface of shell connect
It touches.
As a preferred technical solution of the present invention, the width of second gummed paper is 8-10mm, positive pole ear upper end
Exposed width be 6-7mm, the second gummed paper and the first gummed paper overlap width are 1-2mm.
As a preferred technical solution of the present invention, the junction of the positive pole ear and block is in nearby " Z " font
It folds.
Compared with prior art, the beneficial effects of the invention are as follows：This programme optimizes the structure of lug, to prevent lithium
Positive and negative anodes contact with each other inside ion battery, and battery short circuit, the program is effectively avoided to solve lug rubberizing because of fabrication error original
Because causing rubberizing not encase positive pole ear so that positive pole ear contact the short-circuit security risk of generation with shell, make finished product cylindrical type
The safety of lithium ion battery is greatly improved, and due to simple for process, in process of production, coordinate manual processing or
It operates steadily when semi-automatic production, at low cost almost without stopping production and safeguarding, effect is good, is suitble to push away on a large scale in the industry
It is wide to use.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is positive plate deployed configuration schematic diagram of the present invention.
In figure：1 shell, 2 negative plates, 3 lower gaskets, 4 Upper gaskets, 5 negative lugs, 6 positive pole ears, 7 blocks, 8 dead rings,
9 positive plates, 10 first gummed papers, 11 second gummed papers.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, based on the skill in the present invention
Art scheme, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of column lithium ion battery lug optimization structure,
Including shell 1, positive plate 9, negative plate 2, positive pole ear 6, negative lug 5, Upper gasket 4, lower gasket 3, block 7 and the first gummed paper
10, the end of positive plate 9 and negative plate 2 is respectively welded positive pole ear 6 and negative lug 5, positive pole ear 6 and negative lug 5
Length be all higher than the width of positive plate 9 and negative plate 2, the paste outside of positive pole ear 6 has the first gummed paper 10, the first gummed paper 10
For preventing positive pole ear 6 from being contacted with shell 1, positive plate 9 and negative plate 2 are wound into cylindrical type placement after being separated by diaphragm paper
Inside shell 1, the bottom and top inside shell 1 are respectively arranged with lower gasket 3 and Upper gasket 4, and the top sealing of shell 1 is set
It is equipped with block 7, the end of positive pole ear 6 is connect with block 7, and the end of negative lug 5 is connect with the inner wall of shell 1, shell 1
Inside is full of electrolyte, and the electron attachment in electrolyte keeps shell 1 negatively charged on negative plate 2, and positive plate 9 is lost in electronics, band
Positive electricity, block 7 is positively charged, and the second gummed paper 11, the lower end of the second gummed paper 11 and the first gummed paper 10 are also pasted on positive pole ear 6
Upper end overlaps, and the second gummed paper 11 is effectively avoided for preventing the dislocation of the first gummed paper 10 from leading to no fully wrapped around firmly positive pole ear 6
Positive pole ear 6 contacts the short trouble to be formed with the inner wall of shell 1, and the width of second gummed paper 11 is 8-10mm, positive pole ear 6
The exposed width of upper end is 6-7mm, and the second gummed paper 11 and 10 overlap width of the first gummed paper are 1-2mm, positive pole ear 11 and block 7
Junction nearby in " Z " font fold, in " Z " font fold positive pole ear 6 effectively reduce positive pole ear 6 occupation of land face
Product, contacts to prevent positive pole ear 6 with shell 1, and the inside of shell 1 is additionally provided with dead ring 8, bottom surface and the Upper gasket 4 of dead ring 8
Contact, the upper surface of dead ring 8 are contacted with the bottom surface of block 7, and the outer ring surface of dead ring 8 is contacted with the medial surface of shell 1, insulation
Ring 8 has further prevented positive pole ear 6 to be contacted with shell 1.
When in use：Electron attachment in electrolyte keeps shell 1 negatively charged on negative plate 2, and block 7 is positively charged, and first
For gummed paper 10 for preventing positive pole ear 6 from being contacted with shell 1, the second gummed paper 11 is not complete for preventing the dislocation of the first gummed paper 10 from causing
Positive pole ear 6 is wrapped entirely, positive pole ear 6 is effectively prevented and contacts the short trouble to be formed with the inner wall of shell 1, is in " Z " word
The positive pole ear 6 that type folds effectively reduces the floor space of positive pole ear 6, is contacted with shell 1 to prevent positive pole ear 6, dead ring 8
Positive pole ear 6 has been further prevented to be contacted with shell 1, three kinds of safeguard procedures prevent positive pole ear 6 and shell 1 to greatest extent
Contact, improves the safety of column lithium ion battery.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of column lithium ion battery lug optimizes structure, including shell (1), positive plate (9), negative plate (2), positive pole
Ear (6), negative lug (5), Upper gasket (4), lower gasket (3), block (7) and the first gummed paper (10), the positive plate (9) and negative
The end of pole piece (2) is respectively welded positive pole ear (6) and negative lug (5), the positive pole ear (6) and negative lug (5)
Length be all higher than the width of positive plate (9) and negative plate (2), the paste outside of positive pole ear (6) has the first gummed paper (10), institute
State positive plate (9) and negative plate (2) separated by diaphragm paper after be wound into cylindrical type to be placed on shell (1) internal, in shell (1)
The bottom and top in portion are respectively arranged with lower gasket (3) and Upper gasket (4), and the top sealed set of shell (1) has block (7),
The end of positive pole ear (6) is connect with block (7), and the end of negative lug (5) is connect with the inner wall of shell (1), shell (1)
Inside is full of electrolyte, it is characterised in that：The second gummed paper (11), the second gummed paper (11) are also pasted on the positive pole ear (6)
Lower end overlapped with the upper end of the first gummed paper (10).
2. a kind of column lithium ion battery lug according to claim 1 optimizes structure, it is characterised in that：The shell
(1) inside is additionally provided with dead ring (8), and the bottom surface of dead ring (8) is contacted with Upper gasket (4), the upper surface of dead ring (8) with
The bottom surface of block (7) contacts, and the outer ring surface of dead ring (8) is contacted with the medial surface of shell (1).
3. a kind of column lithium ion battery lug according to claim 1 optimizes structure, it is characterised in that：Described second
The width of gummed paper (11) is 8-10mm, and the exposed width of positive pole ear (6) upper end is 6-7mm, the second gummed paper (11) and the first glue
Paper (10) overlap width is 1-2mm.
4. a kind of column lithium ion battery lug according to claim 1 optimizes structure, it is characterised in that：The anode
Lug (11) and the junction of block (7) are nearby folded in " Z " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259379.6A CN108288688A (en) | 2018-03-27 | 2018-03-27 | A kind of column lithium ion battery lug optimization structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259379.6A CN108288688A (en) | 2018-03-27 | 2018-03-27 | A kind of column lithium ion battery lug optimization structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108288688A true CN108288688A (en) | 2018-07-17 |
Family
ID=62833862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810259379.6A Pending CN108288688A (en) | 2018-03-27 | 2018-03-27 | A kind of column lithium ion battery lug optimization structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108288688A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379943A (en) * | 2019-06-20 | 2019-10-25 | 金能电池(东莞)有限公司 | A kind of column battery of belt glue pad |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201022084Y (en) * | 2006-10-24 | 2008-02-13 | 比亚迪股份有限公司 | A covering plate and secondary battery with this covering board |
| CN202503058U (en) * | 2012-02-17 | 2012-10-24 | 深圳格林德能源有限公司 | Lug position structure for positive electrode piece and negative electrode piece of polymer lithium ion battery |
| CN103413975A (en) * | 2013-07-30 | 2013-11-27 | 河南比得力高新能源科技有限公司 | Lithium nickel cobalt manganate cylindrical high-rate battery and preparation method thereof |
| CN205355178U (en) * | 2016-01-15 | 2016-06-29 | 河南比得力高新能源科技有限公司 | Cylindrical power lithium ion battery of high magnification |
| CN208014796U (en) * | 2018-03-27 | 2018-10-26 | 贵州东森新能源科技有限公司 | A kind of column lithium ion battery lug optimization structure |
-
2018
- 2018-03-27 CN CN201810259379.6A patent/CN108288688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201022084Y (en) * | 2006-10-24 | 2008-02-13 | 比亚迪股份有限公司 | A covering plate and secondary battery with this covering board |
| CN202503058U (en) * | 2012-02-17 | 2012-10-24 | 深圳格林德能源有限公司 | Lug position structure for positive electrode piece and negative electrode piece of polymer lithium ion battery |
| CN103413975A (en) * | 2013-07-30 | 2013-11-27 | 河南比得力高新能源科技有限公司 | Lithium nickel cobalt manganate cylindrical high-rate battery and preparation method thereof |
| CN205355178U (en) * | 2016-01-15 | 2016-06-29 | 河南比得力高新能源科技有限公司 | Cylindrical power lithium ion battery of high magnification |
| CN208014796U (en) * | 2018-03-27 | 2018-10-26 | 贵州东森新能源科技有限公司 | A kind of column lithium ion battery lug optimization structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379943A (en) * | 2019-06-20 | 2019-10-25 | 金能电池(东莞)有限公司 | A kind of column battery of belt glue pad |
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