CN105742527B - A kind of cylindrical lithium ion power battery of high energy than, long-life - Google Patents
A kind of cylindrical lithium ion power battery of high energy than, long-life Download PDFInfo
- Publication number
- CN105742527B CN105742527B CN201610156455.1A CN201610156455A CN105742527B CN 105742527 B CN105742527 B CN 105742527B CN 201610156455 A CN201610156455 A CN 201610156455A CN 105742527 B CN105742527 B CN 105742527B
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- cylindrical lithium
- power battery
- ion power
- positive electrode
- 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 40
- 238000000576 coating method Methods 0.000 claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000005476 soldering Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009466 transformation Effects 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—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
- 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
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- 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)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
Present invention is disclosed a kind of high energy than the cylindrical lithium ion power battery of, long-life, and the ratio of height to diameter of the cylindrical lithium ion power battery is 3.8~4.2；The battery core of the cylindrical lithium ion power battery includes positive electrode coating and positive pole ear, cathode coating and negative lug, and the diaphragm between positive and negative anodes, the cathode coating it is wider than the positive electrode coating and it is asymmetric envelope the positive electrode coating, the cathode coating is less than the distance that the cathode coating exceeds in negative pole end the positive electrode coating front end in distance of the positive terminal beyond the positive electrode coating front end；The battery core is contained in the enclosure space being made of aluminum hull and cover board, and the cover board is sealed using double rivets, and the cover board is equipped with the groove for the fill insulant at riveted at pole riveted, and the endface of the aluminum hull offers chamfering.The present invention provides a kind of high energy than the cylindrical lithium ion power battery of, long-life, the safety of battery has been taken into account while the capacity for improving single battery, the riveting method of cover board, the end face processing technique of aluminum hull are optimized simultaneously, the difficulty of processing of battery is reduced, improves production efficiency.
Description
Technical field
The invention belongs to technical field of lithium batteries more particularly to a kind of high energy than the cylindrical lithium ion power electric of, long-life
Pond.
Background technology
Support and popularization with country to new-energy automobile industry, demand of the market to lithium battery is also increasing, right
The capacity of lithium ion battery and service life, higher requirements are also raised.Cylindrical lithium ion battery has relative to rectangular lithium ion battery
High filling rate, thus have the characteristics that high energy ratio, and 18650 traditional batteries, since its capacity is low, the battery of bicycle needs
Substantial amounts, production capacity much cannot be satisfied the demand in market, and BMS control systems are complicated, and security risk is big.Another party
Face, the mode that traditional cylindrical lithium ion battery mostly uses ultrasonic spot welding come soldering polar ear, lug negligible amounts, battery overcurrent
Limited area causes the internal resistance of cell bigger than normal, influences the cycle life of battery.Therefore, it is badly in need of developing a kind of high energy than, long-life
Cylindrical lithium ion power battery.
Invention content
In view of the problems of the above-mentioned prior art, the purpose of the present invention is to propose to a kind of high energy than the cylinder of, long-life
Lithium-ion-power cell.
The purpose of the present invention will be achieved by the following technical programs：
A kind of high energy is than the cylindrical lithium ion power battery of, long-life, the ratio of height to diameter of the cylindrical lithium ion power battery
It is 3.8~4.2；The battery core of the cylindrical lithium ion power battery includes positive electrode coating and positive pole ear, cathode coating and cathode
Diaphragm between lug and positive and negative anodes, the cathode coating is wider than the positive electrode coating and asymmetric envelopes the anode
Coating, the cathode coating are less than the cathode coating in distance of the positive terminal beyond the positive electrode coating front end and surpass in negative pole end
Go out the distance of the positive electrode coating front end；The battery core is contained in the enclosure space being made of aluminum hull and cover board, the cover board
It is sealed using double rivets, the cover board is equipped with the groove for the fill insulant at riveted, the aluminium at pole riveted
The endface of shell offers chamfering.
Further, a diameter of 32mm of the cylindrical lithium ion power battery is highly 131mm.
Further, the aluminum hull is provided with 3 °~15 ° of chamfering at port.
Further, the cover board opens up the groove of 1.2~1.6 times of promising diameter at pole riveted.
Further, the cathode coating, which uses, rubs the outside that flat welded technique winding is coated on the positive electrode coating.This
The protrusion effect of invention is：The present invention provides a kind of high energy than the cylindrical lithium ion power battery of, long-life, is improving list
The safety of battery has been taken into account while the capacity of body battery, while optimizing the end face processing of the riveting method of cover board, aluminum hull
Technique reduces the difficulty of processing of battery, improves production efficiency.
Just attached drawing in conjunction with the embodiments below, the embodiment of the present invention is described in further detail, so that of the invention
Technical solution is more readily understood, grasps.
Description of the drawings
Fig. 1 is the outline structural diagram of the embodiment of the present invention；
Fig. 2 is the battery core pole piece structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the covering plate structure schematic diagram of the embodiment of the present invention；
Fig. 4 is the aluminum hull structural schematic diagram of the embodiment of the present invention.
Specific implementation mode
Embodiment
As shown in Figs 1-4, a kind of high energy of the present embodiment than, long-life cylindrical lithium ion power battery, cylinder lithium from
The ratio of height to diameter of sub- power battery is 3.8~4.2.Preferably, a diameter of 32mm of cylindrical lithium ion power battery is highly
131mm, battery size is larger, and cell capacity is high, the characteristics of having played cylinder high energy ratio.
The battery core of cylindrical lithium ion power battery includes positive electrode coating 4 and positive pole ear 10, cathode coating 5 and negative lug
Diaphragm 9 between 11 and positive and negative anodes, cathode coating 5 it is wider than positive electrode coating 4 and it is asymmetric envelope positive electrode coating 4, cathode applies
Material 5 distance of the positive terminal beyond 4 front end of positive electrode coating be less than cathode coating 5 negative pole end beyond positive electrode coating 4 front end away from
From the positive electrode, the negative electrode and the separator three is wound into cylindrical structure.Using 5 asymmetric clad anode coating of cathode coating, 4 this knot
The benefit of structure is the distance on the one hand increasing negative pole end to positive terminal, and short circuit may be occurred in rubbing flat welded by reducing battery core
Risk, on the other hand, anode can be rubbed finer and close, ensure that the fastness subsequently welded, battery core conveyance capacity are strong.
Battery core is contained in the enclosure space being made of aluminum hull 1 and cover board 2, and cover board 2 is sealed using double rivets 6, is avoided
Rotational problems of single rivet in driving shakes；Cover board 2 is equipped at 3 riveted of pole for the fill insulant at riveted
For 1.2~1.6 times of groove 7 of diameter, keep loading of the insulation filler at riveting more, riveting intensity bigger reduces
The ratio of battery leakage, better tightness.
The endface of aluminum hull 1 offers 3 °~15 ° of chamfering 8, and welding fluid is made to more readily flow into weldering during welding battery
Seam, welding efficiency higher reduce periphery weldering burst point ratio, improve soldering reliability.
A kind of cylindrical lithium ion power battery of high energy than, long-life is present embodiments provided, single battery is being improved
Capacity while taken into account the safety of battery, while optimizing the end face processing technique of the riveting method of cover board 2, aluminum hull 1,
The difficulty of processing for reducing battery, improves production efficiency.
Still there are many embodiment, all technical sides formed using equivalents or equivalent transformation by the present invention
Case is within the scope of the present invention.
Claims (5)
1. a kind of high energy is than the cylindrical lithium ion power battery of, long-life, it is characterised in that：The cylindrical lithium ion power battery
Ratio of height to diameter be 3.8~4.2；The battery core of the cylindrical lithium ion power battery includes positive electrode coating and positive pole ear, and cathode applies
Material and the diaphragm between negative lug and positive and negative anodes, the cathode coating is wider than the positive electrode coating and asymmetric envelopes
The positive electrode coating, the cathode coating exist in distance of the positive terminal beyond the positive electrode coating front end less than the cathode coating
Negative pole end exceeds the distance of the positive electrode coating front end；The battery core is contained in the enclosure space being made of aluminum hull and cover board,
The cover board is sealed using double rivets, the cover board be equipped at pole riveted at riveted fill insulant it is recessed
The endface of slot, the aluminum hull offers chamfering.
2. a kind of high energy according to claim 1 is than the cylindrical lithium ion power battery of, long-life, it is characterised in that：Institute
A diameter of 32mm of cylindrical lithium ion power battery is stated, is highly 131mm.
3. a kind of high energy according to claim 1 is than the cylindrical lithium ion power battery of, long-life, it is characterised in that：Institute
State the chamfering that aluminum hull is provided with 3 °~15 ° at port.
4. a kind of high energy according to claim 1 is than the cylindrical lithium ion power battery of, long-life, it is characterised in that：Institute
State the groove that cover board opens up 1.2~1.6 times of promising diameter at pole riveted.
5. a kind of high energy according to claim 1 is than the cylindrical lithium ion power battery of, long-life, it is characterised in that：Institute
It states the use of cathode coating and rubs the outside that flat welded technique winding is coated on the positive electrode coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156455.1A CN105742527B (en) | 2016-03-18 | 2016-03-18 | A kind of cylindrical lithium ion power battery of high energy than, long-life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156455.1A CN105742527B (en) | 2016-03-18 | 2016-03-18 | A kind of cylindrical lithium ion power battery of high energy than, long-life |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105742527A CN105742527A (en) | 2016-07-06 |
| CN105742527B true CN105742527B (en) | 2018-10-16 |
Family
ID=56250749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610156455.1A Active CN105742527B (en) | 2016-03-18 | 2016-03-18 | A kind of cylindrical lithium ion power battery of high energy than, long-life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105742527B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410079A (en) * | 2016-09-12 | 2017-02-15 | 国轩新能源（苏州）有限公司 | Cylindrical lithium-ion power battery aluminum shell with high safety and high performance |
| CN108281578B (en) * | 2017-12-07 | 2021-06-01 | 国轩新能源（苏州）有限公司 | Cylindrical battery vibration-proof electrode cover plate |
| CN110828714A (en) * | 2019-11-20 | 2020-02-21 | 四川新敏雅电池科技有限公司 | Shell for lithium ion cell and preparation method thereof, and lithium ion battery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100216000A1 (en) * | 2006-09-19 | 2010-08-26 | Hideaki Fujita | Method of producing electrode for secondary battery and secondary battery |
| JP2008293681A (en) * | 2007-05-22 | 2008-12-04 | Hitachi Vehicle Energy Ltd | Lithium-ion secondary battery |
| CN203812931U (en) * | 2014-04-24 | 2014-09-03 | 合肥国轩高科动力能源股份公司 | Lithium ion battery cover plate |
-
2016
- 2016-03-18 CN CN201610156455.1A patent/CN105742527B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105742527A (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205376656U (en) | Secondary battery | |
| CN206585025U (en) | Cylindrical lithium ion battery with hollow pole | |
| CN105742527B (en) | A kind of cylindrical lithium ion power battery of high energy than, long-life | |
| CN207572477U (en) | Electrode assembly and secondary cell | |
| CN209401759U (en) | Secondary cell | |
| CN111682129A (en) | Metal shell button type lithium ion battery | |
| CN106169618A (en) | A kind of positive/negative plate promoting electrokinetic cell safety and winding clad structure thereof | |
| CN214068854U (en) | Negative pole drainage structure of full utmost point ear battery | |
| KR20230009442A (en) | Pole Segments, Wound Battery Cells, and Batteries | |
| CN207719304U (en) | A kind of the multi pole ears core and cylindrical battery of cylindrical battery | |
| CN206878126U (en) | Secondary cell | |
| CN216311911U (en) | Big cylindrical battery structure of full utmost point ear | |
| CN210744082U (en) | Winding battery cell and lithium ion battery | |
| CN110061178A (en) | Battery, battery pack and automobile | |
| CN203826461U (en) | End-surface-welded cylindrical lithium battery | |
| US11069935B2 (en) | Cell and battery | |
| CN205508963U (en) | Coiling type battery cell | |
| CN207587901U (en) | A kind of high-power laminated lithium ion battery | |
| CN202019028U (en) | Cell core of lithium cell and lithium cell | |
| CN212434723U (en) | Metal shell button type lithium ion battery | |
| CN103219524A (en) | Positive pole current collector foil and positive pole piece of laminated lithium ion battery and laminated lithium ion battery | |
| CN107293805B (en) | Winding type battery cell and winding needle | |
| CN115332693A (en) | Secondary battery and electronic device | |
| CN207474594U (en) | A kind of lithium ion cylinder battery | |
| CN110299249A (en) | A kind of electrochemical energy storing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.100 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Shanghai Electric GuoXuan new energy technology (Suzhou) Co.,Ltd. Address before: No.100 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: GUOXUAN NEW ENERGY (SUZHOU) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211201 Address after: 226000 No.98 Hexing East Road, Nantong Development Zone, Jiangsu Province Patentee after: Shanghai Electric GuoXuan new energy technology (Nantong) Co.,Ltd. Patentee after: Shanghai Electric GuoXuan New Energy Technology Co., Ltd Address before: No.100 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Shanghai Electric GuoXuan new energy technology (Suzhou) Co.,Ltd. |
|
| TR01 | Transfer of patent right |