CN104347841B - The negative lug of disposable lithium-battery and and lithium cathode sheet between attachment structure - Google Patents
The negative lug of disposable lithium-battery and and lithium cathode sheet between attachment structure Download PDFInfo
- Publication number
- CN104347841B CN104347841B CN201410623728.XA CN201410623728A CN104347841B CN 104347841 B CN104347841 B CN 104347841B CN 201410623728 A CN201410623728 A CN 201410623728A CN 104347841 B CN104347841 B CN 104347841B
- Authority
- CN
- China
- Prior art keywords
- lithium
- depressed part
- negative lug
- cathode sheet
- lithium cathode
- 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.)
- Active
Links
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
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/182—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for flat conductive elements, e.g. flat cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
-
- 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)
- Battery Electrode And Active Subsutance (AREA)
Abstract
nullThe invention discloses the attachment structure between negative lug and the lithium cathode sheet of a kind of disposable lithium-battery，Including negative lug and lithium cathode sheet，Negative lug includes a strip nickel sheet，Multiple depressed part uniformly it is stamped with in strip nickel sheet，Depressed part is provided centrally with through hole，Lithium cathode sheet and negative lug are after external force mutually extrudes，It is close to mutually with first of strip nickel sheet for first of lithium cathode sheet，Form the sectional area coverage rate more than through hole in the bottom surface of depressed part after portion of material in lithium cathode sheet squeezes through through hole simultaneously，Its advantage is that the contact gear ratio between lithium cathode sheet and negative lug is relatively reliable，It is not easy to disengage，Ensure that the discharge performance of lithium-manganese cell，Simultaneously because form depressed part and through hole after negative lug punching press，Substantially increase the contact area between negative lug and lithium cathode sheet，The discharge performance comparing tradition lithium-manganese cell increases.
Description
Technical field
The present invention relates to a kind of field of lithium, particularly relate to a kind of disposable lithium-battery negative lug and and lithium cathode sheet between attachment structure.
Background technology
Coiling lithium manganese cell is by lithium cathode sheet, positive plate and is arranged in two interelectrode micro-pore septums and forms, its inside battery is wound into " film " shape structure on the whole, being filled with electrolyte at inside battery, electrolyte is injected into inside battery in the fluid injection mode of evacuation.The reaction principle of battery: full name lithium-manganese dioxide battery (Lithium-manganese dioxide, Li-MnO2).In galvanic element, using lithium metal as anode, manganese dioxide is as negative electrode, and in galvanic element, anode is negative pole, and electronics is flowed to positive pole by negative pole, and electric current is flowed to negative pole by positive pole；Being connected with positive pole at electrolyzer Anodic, on anode, oxidation reaction occurs is the anion in solution.In lithium-manganese cell structure as depicted in figs. 1 and 2, include micro-pore septum 9, positive plate 10, lithium cathode sheet 5, negative lug 7 and box hat 8, negative lug 7 is connected to lithium cathode sheet 5 and box hat 8 negative terminal) bottom between, negative lug 7 is connected by welding manner between bottom box hat 8, connected mode between negative lug 7 and lithium cathode sheet 5 is: negative lug 7 is directly against being attached in lithium cathode sheet 5, then is fixed with adhesive tape.There are the following problems for such attachment structure: 1, the Cohesion reliability of adhesive tape is the highest, there is negative lug risk from de-in lithium cathode sheet, or there is part contact between negative lug and lithium cathode sheet, situation about being partially disengaged；So there will be the problem that cell discharge performance is bad, be a risk that further in battery is in vibration processes, finally also result in negative lug and completely disengage from lithium cathode sheet, cause the problems such as battery cannot discharge.Even if 2 in the case of negative lug with lithium cathode sheet energy reliable contacts completely, contact area between negative lug and lithium cathode sheet or relatively small, its electric conductivity is by a certain degree of impact so that the discharge performance of traditional lithium-manganese cell is restricted.
Summary of the invention
The technical problem to be solved be to provide a kind of energy contact with lithium cathode sheet reliable disposable lithium-battery negative lug and and lithium cathode sheet between attachment structure, this negative lug and attachment structure can increase both contacts area, improve the discharge performance of lithium-manganese cell further.
The present invention solves the technical scheme that above-mentioned technical problem used: the negative lug of disposable lithium-battery, including a strip nickel sheet, described strip nickel sheet is uniformly stamped with multiple depressed part, and described depressed part is provided centrally with through hole.
Described depressed part is circular depression, and described through hole is manhole.Strip nickel sheet has this structure so that have more contact area, the portion of material that through hole is available in lithium cathode sheet simultaneously to pass through between itself and lithium cathode sheet.
A diameter of L1 of described circular depression, the height of circular depression is H, a diameter of L2,1/4L1 < L2 < 2/3L1, the 1/10L1 < H < 1/2L1 of manhole.The height of depressed part and diameter limit and make this structure have more preferable intensity, keep the reliable of negative lug structure, remain to maintain the original state when extruding with lithium cathode sheet under external force.
Described multiple depressed parts are divided into two row's depressed parts along strip nickel sheet length direction, respectively first row depressed part and second row depressed part, and the depressed part in first row depressed part is staggered with the depressed part in second row depressed part.
A diameter of 0.8 millimeter～1.5 millimeters of described circular depression.
Attachment structure between negative lug and the lithium cathode sheet of disposable lithium-battery, including negative lug and lithium cathode sheet, described negative lug includes a strip nickel sheet, multiple depressed part uniformly it is stamped with in described strip nickel sheet, described depressed part is provided centrally with through hole, described lithium cathode sheet and described negative lug are after external force mutually extrudes, it is close to mutually with first of strip nickel sheet for first of lithium cathode sheet, after the portion of material in lithium cathode sheet squeezes through described through hole, forms the sectional area coverage rate more than through hole simultaneously in the bottom surface of depressed part.
The described material in lithium cathode sheet fills up described through hole, and described coverage rate is close on the bottom surface of described depressed part.
Described depressed part is circular depression, and described through hole is manhole.
A diameter of L1 of described circular depression, the height of circular depression is H, a diameter of L2,1/4L1 < L2 < 2/3L1,1/10L1 < H < 1/2L1, a diameter of 0.8 millimeter～1.5 millimeters of described circular depression of manhole.
Described multiple depressed parts are divided into two row's depressed parts along strip nickel sheet length direction, respectively first row depressed part and second row depressed part, and the depressed part in first row depressed part is staggered with the depressed part in second row depressed part.
Compared with prior art, it is an advantage of the invention that lithium material is the softest so that it has preferable ductility owing to the hardness of (lithium cathode sheet) lithium material is less than the hardness of negative lug (nickel material).Under external force, lithium cathode sheet and negative lug are after mutually extruding, it is close to mutually with first of strip nickel sheet for first of lithium cathode sheet, form the sectional area coverage rate more than through hole in the bottom surface of depressed part after portion of material in lithium cathode sheet squeezes through through hole simultaneously, make the contact gear ratio between lithium cathode sheet and negative lug relatively reliable, it is not easy to disengage, ensure that the discharge performance of lithium-manganese cell, simultaneously because form depressed part and through hole after negative lug punching press, substantially increase the contact area between negative lug and lithium cathode sheet, the discharge performance comparing tradition lithium-manganese cell increases.
Accompanying drawing explanation
Fig. 1 is the sectional view of lithium-manganese cell；
Fig. 2 is enlarged drawing at C in Fig. 1；
Fig. 3 is the structure chart of negative lug of the present invention；
Fig. 4 is enlarged drawing at A in Fig. 3；
Fig. 5 is B-B sectional view in Fig. 4；
Fig. 6 is the sectional view of attachment structure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The negative lug of disposable lithium-battery, including a strip nickel sheet 1, strip nickel sheet 1 is uniformly stamped with multiple depressed part 2, and depressed part 2 is provided centrally with through hole 3.Disposable lithium-battery can be lithium-manganese cell.
Depressed part 2 is circular depression, and through hole 3 is manhole.
A diameter of L1 of circular depression 2, the height of circular depression 2 is H, a diameter of L2,1/4L1 < L2 < 2/3L1, the 1/10L1 < H < 1/2L1 of manhole 3.
Multiple depressed parts 2 are divided into two row's depressed parts along strip nickel sheet length direction, respectively first row depressed part 21 and second row depressed part 21, and the depressed part in first row depressed part 21 is staggered with the depressed part in second row depressed part 22.
A diameter of 0.8 millimeter～1.5 millimeters of circular depression 2.Preferential value be the value of depressed part 2 diameter L1 be 1.1 millimeters, the value of through hole 3 diameter L2 is 0.3 millimeter, and the value of the height H of depressed part 2 is 0.25 millimeter.
Attachment structure between negative lug and the lithium cathode sheet 5 of disposable lithium-battery, including negative lug and lithium cathode sheet 5, negative lug includes a strip nickel sheet 1, multiple depressed part 2 uniformly it is stamped with in strip nickel sheet 1, depressed part 2 is provided centrally with through hole 3, lithium cathode sheet 5 and negative lug are after external force mutually extrudes, first face 51 of lithium cathode sheet 5 and the first face 11 of strip nickel sheet 1 are close to mutually, form the sectional area coverage rate 6 more than through hole 3 after the portion of material in lithium cathode sheet 5 squeezes through through hole 3 simultaneously in the bottom surface of depressed part 2.Material in lithium cathode sheet 5 fills up through hole 3, and coverage rate 6 is close on the bottom surface of depressed part 2.
Depressed part 2 is circular depression, and through hole 3 is manhole.
A diameter of L1 of circular depression 2, the height of circular depression 2 is H, a diameter of L2,1/4L1 < L2 < 2/3L1,1/10L1 < H < 1/2L1, a diameter of 0.8 millimeter～1.5 millimeters of circular depression 2 of manhole 3.
Multiple depressed parts 2 are divided into two row's depressed parts along strip nickel sheet length direction, respectively first row depressed part 21 and second row depressed part 22, and the depressed part in first row depressed part 21 is staggered with the depressed part in second row depressed part 22.
Claims (5)
1. the attachment structure between negative lug and the lithium cathode sheet of disposable lithium-battery, including negative lug and lithium cathode sheet, institute
The negative lug stated includes a strip nickel sheet, it is characterised in that be uniformly stamped with multiple depression in described strip nickel sheet
Portion, described depressed part is provided centrally with through hole, and described lithium cathode sheet mutually extrudes through external force with described negative lug
After, it is close to mutually with first of strip nickel sheet for first of lithium cathode sheet, the portion of material in lithium cathode sheet squeezes through simultaneously
Form the sectional area coverage rate more than through hole in the bottom surface of depressed part after described through hole.
Attachment structure between negative lug and the lithium cathode sheet of disposable lithium-battery the most according to claim 1, its feature
The material being in described lithium cathode sheet fills up described through hole, and described coverage rate is close to the end of described depressed part
On face.
Attachment structure between negative lug and the lithium cathode sheet of disposable lithium-battery the most according to claim 1, its feature
Being that described depressed part is circular depression, described through hole is manhole.
Attachment structure between negative lug and the lithium cathode sheet of disposable lithium-battery the most according to claim 3, its feature
Being a diameter of L1 of described circular depression, the height of circular depression is H, a diameter of L2 of manhole,
1/4L1 < L2 < 2/3L1,1/10L1 < H < 1/2L1, a diameter of 0.8 millimeter～1.5 millimeters of described circular depression.
Attachment structure between negative lug and the lithium cathode sheet of disposable lithium-battery the most according to claim 1, its feature
Be described multiple depressed parts be divided into two row's depressed parts along strip nickel sheet length direction, respectively first row depressed part and
Second row depressed part, the depressed part in first row depressed part is staggered with the depressed part in second row depressed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623728.XA CN104347841B (en) | 2014-11-07 | 2014-11-07 | The negative lug of disposable lithium-battery and and lithium cathode sheet between attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623728.XA CN104347841B (en) | 2014-11-07 | 2014-11-07 | The negative lug of disposable lithium-battery and and lithium cathode sheet between attachment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104347841A CN104347841A (en) | 2015-02-11 |
| CN104347841B true CN104347841B (en) | 2016-09-14 |
Family
ID=52502993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410623728.XA Active CN104347841B (en) | 2014-11-07 | 2014-11-07 | The negative lug of disposable lithium-battery and and lithium cathode sheet between attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104347841B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049882A (en) * | 1976-02-11 | 1977-09-20 | Union Carbide Corporation | Battery assembly |
| JP2000260418A (en) * | 1999-03-12 | 2000-09-22 | Furukawa Battery Co Ltd:The | Collector for cylindrical storage battery and cylindrical storage battery |
| CN202839820U (en) * | 2012-08-16 | 2013-03-27 | 深圳市浩明电讯科技有限公司 | Disposal lithium-manganese battery cathode pole lug |
| JP2014139906A (en) * | 2013-01-21 | 2014-07-31 | Toyota Motor Corp | Sealed battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729162A (en) * | 1986-06-11 | 1988-03-08 | Duracell Inc. | Electrochemical cell asssembly |
| JPH0562666A (en) * | 1991-08-29 | 1993-03-12 | Sanyo Electric Co Ltd | Manufacture of non-sintered type electrode for alkaline storage battery |
| CN102104133B (en) * | 2011-01-28 | 2013-03-27 | 福建南平南孚电池有限公司 | Pole lug of lithium battery and negative pole structure with same as well as lithium battery |
| CN102104134B (en) * | 2011-01-28 | 2012-12-05 | 福建南平南孚电池有限公司 | Pole lug of lithium battery and negative pole structure with same as well as lithium battery |
| CN204167397U (en) * | 2014-11-07 | 2015-02-18 | 宁波超霸能源有限公司 | The negative lug of disposable lithium-battery and and lithium cathode sheet between syndeton |
-
2014
- 2014-11-07 CN CN201410623728.XA patent/CN104347841B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049882A (en) * | 1976-02-11 | 1977-09-20 | Union Carbide Corporation | Battery assembly |
| JP2000260418A (en) * | 1999-03-12 | 2000-09-22 | Furukawa Battery Co Ltd:The | Collector for cylindrical storage battery and cylindrical storage battery |
| CN202839820U (en) * | 2012-08-16 | 2013-03-27 | 深圳市浩明电讯科技有限公司 | Disposal lithium-manganese battery cathode pole lug |
| JP2014139906A (en) * | 2013-01-21 | 2014-07-31 | Toyota Motor Corp | Sealed battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104347841A (en) | 2015-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105830253B (en) | Rectangular secondary cell | |
| CN100544069C (en) | Enclosed secondary battery | |
| CN102376902B (en) | Sealing construction for secondary cell | |
| EP4213252A3 (en) | Alkaline electrochemical cells with separator and electrolyte combination | |
| CN107204408B (en) | Full-lug square lithium battery and preparation method thereof | |
| CN104919617A (en) | Button cell with electrode coil | |
| WO2012177932A3 (en) | High rate, long cycle life battery electrode materials with an open framework structure | |
| JP2009087729A (en) | Closed battery | |
| WO2012134065A3 (en) | Cylindrical secondary battery with improved stability | |
| JP2006269420A (en) | Lithium secondary battery | |
| CN106104857A (en) | Secondary cell | |
| CN108539113A (en) | Secondary battery of soft package lug and its secondary battery of soft package | |
| EP2328198B1 (en) | Battery can and alkaline battery | |
| JP4526996B2 (en) | Lithium ion secondary battery | |
| CN204167397U (en) | The negative lug of disposable lithium-battery and and lithium cathode sheet between syndeton | |
| CN106256030A (en) | Cylindrical shape lithium rechargeable battery | |
| CN102044638A (en) | Lithium-manganese battery case and lithium-manganese battery | |
| CN201590436U (en) | Button cell and positive case thereof | |
| CN104335388B (en) | Enclosed-type battery | |
| JP6406943B2 (en) | Bobbin-type lithium primary battery | |
| CN104347841B (en) | The negative lug of disposable lithium-battery and and lithium cathode sheet between attachment structure | |
| CN105810966A (en) | Alkaline zinc-manganese battery and manufacturing method thereof | |
| CN204966579U (en) | Anodal post of inferior battery of lithium | |
| CN203260684U (en) | Cylindrical lithium ion battery | |
| CN209344226U (en) | A kind of modified CR2032 li-Mn button cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |