CN106025340A - Lithium-ion battery - Google Patents
Lithium-ion battery Download PDFInfo
- Publication number
- CN106025340A CN106025340A CN201610464921.2A CN201610464921A CN106025340A CN 106025340 A CN106025340 A CN 106025340A CN 201610464921 A CN201610464921 A CN 201610464921A CN 106025340 A CN106025340 A CN 106025340A
- Authority
- CN
- China
- Prior art keywords
- band
- active substance
- battery
- aluminium foil
- foil
- 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
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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
- 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
Abstract
The invention discloses a lithium-ion battery, which comprises a metal housing, a polar cap, a strip, a positive electrode plate, a negative electrode plate, a membrane and an electrolyte, wherein the membrane is arranged between the positive plate and the negative plate; the negative electrode plate, the membrane, the positive electrode plate and the electrolyte are sequentially assembled to form a battery cell in a winding or laminating manner; the battery cell is fixedly arranged in the metal housing; the positive electrode plate is fixedly connected with the polar cap through the strip; and the negative electrode plate is fixedly connected with the polar cap through the strip. By changing the connection mode of the positive electrode plate, the negative electrode plate and a positive electrode and a negative electrode of the battery housing, a metal aluminum foil is single-layer and small in thickness, and easily generates false welding when welded and the indexes of internal resistance and the like of the battery are affected. Through bonding of the foil in the width direction, the connection technology between the metal strip or non-metal strip and the metal housing is high in controllability; reliable connection between the pole plates and the metal housing is ensured; the battery consistency is greatly improved; the assembly procedure difficulty of the battery is reduced; and the production controllability is greatly improved.
Description
Technical field
The invention belongs to technical field of lithium ion, be specifically related to a kind of lithium ion battery.
Background technology
Development along with science and technology, each electronic product emerges in an endless stream, almost become composition indispensable in daily life, and the plurality of advantages such as lithium ion battery has that energy density is high, have extended cycle life, environmental friendliness and renewable product, the most it is widely used in each electronic product.
In recent years, the demand of lithium ion battery significantly expands, in the processing technology of battery, the structures shape of the battery production technology of battery, along with conductive-type material and the technological innovation of bonding class material, the production structure change of battery adjusts increasing, by conductive-type materials application to the production technology of lithium ion battery so that it is technique becomes simple and effect and promotes.
Summary of the invention
Present invention aims to the deficiencies in the prior art, now provide one to meet lithium ion battery and play high power capacity and high-power new structure, by the change of structure so that it is technique becomes the lithium ion battery of charge-discharge performance feature that is controlled and that meet lithium ion battery.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of lithium ion battery, its innovative point is: include metal shell, polar cap, band, positive plate, negative plate, barrier film and electrolyte, described barrier film is arranged between positive plate and negative plate, described negative plate, barrier film, positive plate and electrolyte pass sequentially through the form of winding or lamination and assemble formation battery core, described battery core fixed placement is inside metal shell, described positive plate is fixedly connected with polar cap by band, and described negative plate is fixedly connected with polar cap by band；
Described positive plate base material is banding aluminium foil, and active substance coats along aluminium foil horizontal maximum size, and active substance, along after aluminium foil longitudinal direction certain distance, leaves certain distance aluminium foil and is not coated with the foil of active substance；
Described negative plate base material is banding aluminium foil, and active substance coats along aluminium foil horizontal maximum size, and active substance, along after aluminium foil longitudinal direction certain distance, leaves certain distance aluminium foil and is not coated with the foil of active substance.
Further, described positive plate is welded by band or bonds, being riveted on polar cap, and described band bonds or is welded on positive plate and is not coated with on the foil of active substance.
Further, described negative plate is welded by band or bonds, being riveted on polar cap, and described band bonds or is welded on negative plate and is not coated with on the foil of active substance.
Further, described band selects sheet metal strip or radio frequency band.
Beneficial effects of the present invention is as follows: the present invention is by changing positive plate, connected mode between negative plate and battery case both positive and negative polarity, when metallic aluminium foil thickness in monolayer is little and welds, rosin joint easily occurs, thus have influence on the index of the internal resistance of battery, thus have influence on the concordance of battery charging and discharging, by selecting novel conductive class material, it is high that novel conductive class material has adhesion strength, conduct electricity very well, operation controllability is strong, reduce the internal resistance of cell, by foil in the bonding of width, between sheet metal strip or nonmetal band and metal shell, Joining Technology controllability is strong, ensure that being reliably connected between pole piece and metal shell, substantially increase battery with two side terminals, reduce the operation difficulty of battery assembling, production controllability is greatly improved.
Accompanying drawing explanation
Fig. 1 is that the winding of the present invention assembles core strueture schematic diagram；
Fig. 2 is the winding package assembly schematic diagram of the present invention；
Fig. 3 is the pole piece structure schematic diagram of the present invention；
Fig. 4 is the lamination assembling structural representation of the present invention.
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art can be understood other advantages and effect of the present invention easily by the content disclosed by this specification.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of lithium ion battery, including metal shell 6, polar cap 7, band 5, positive plate 2, negative plate 4, barrier film 3 and electrolyte, barrier film 3 is arranged between positive plate 2 and negative plate 4, negative plate 4, barrier film 3, positive plate 2 and electrolyte pass sequentially through the form of winding or lamination and assemble formation battery core 1, battery core 1 fixed placement is inside metal shell 6, positive plate 2 is fixedly connected with polar cap 7 by band 5, and negative plate 4 is fixedly connected with polar cap 7 by band 5；
Positive plate 2 base material is banding aluminium foil, and active substance 8 coats along aluminium foil horizontal maximum size, and active substance 8, along after aluminium foil longitudinal direction certain distance, leaves certain distance aluminium foil and is not coated with the foil 9 of active substance 8；
Negative plate 4 base material is banding aluminium foil, and active substance 8 coats along aluminium foil horizontal maximum size, and active substance 8, along after aluminium foil longitudinal direction certain distance, leaves certain distance aluminium foil and is not coated with the foil 9 of active substance 8.
Positive plate 2 is welded or bonds by band 5, being riveted on polar cap 7, band 5 bonds or is welded on the foil 9 being not coated with active substance 8 on positive plate 2, negative plate 4 is welded or bonds by band 5, being riveted on polar cap 7, and band 5 bonds or is welded on the foil 9 being not coated with active substance 8 on negative plate 4；Band 5 selects sheet metal strip or radio frequency band.
The present invention is by changing positive plate 2, connected mode between negative plate 4 and metal 6 shell both positive and negative polarity, when metallic aluminium foil thickness in monolayer is little and welds, rosin joint easily occurs, the indexs such as the internal resistance influencing whether battery, thus have influence on the concordance of battery charging and discharging, by selecting novel conductive class material, it is high that novel conductive class material has adhesion strength, conduct electricity very well, operation controllability is strong, reduce the internal resistance of cell, by foil 9 in the bonding of width, between sheet metal strip 5 or nonmetal band 5 and metal shell 6, Joining Technology controllability is strong, ensure that being reliably connected between pole piece and metal shell 6, substantially increase battery with two side terminals, reduce the operation difficulty of battery assembling, production controllability is greatly improved.
Operation principle: the present invention has used the metal or nonmetal band 5 that electrical conductivity is higher, bonds reliably with pole piece matrix and metal shell 6, reduces the internal resistance of battery, and the change in size of conductive-type material is adjustable, on producing, controllability is strong.
Above-described embodiment is presently preferred embodiments of the present invention; it it is not the restriction to technical solution of the present invention; as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, in the range of being regarded as falling into the rights protection of patent of the present invention.
Claims (4)
1. a lithium ion battery, it is characterized in that: include metal shell, polar cap, band, positive plate, negative plate, barrier film and electrolyte, described barrier film is arranged between positive plate and negative plate, described negative plate, barrier film, positive plate and electrolyte pass sequentially through the form of winding or lamination and assemble formation battery core, described battery core fixed placement is inside metal shell, described positive plate is fixedly connected with polar cap by band, and described negative plate is fixedly connected with polar cap by band；
Described positive plate base material is banding aluminium foil, and active substance coats along aluminium foil horizontal maximum size, and active substance, along after aluminium foil longitudinal direction certain distance, leaves certain distance aluminium foil and is not coated with the foil of active substance；
Described negative plate base material is banding aluminium foil, and active substance coats along aluminium foil horizontal maximum size, and active substance, along after aluminium foil longitudinal direction certain distance, leaves certain distance aluminium foil and is not coated with the foil of active substance.
A kind of lithium ion battery the most according to claim 1, it is characterised in that: described positive plate is welded by band or bonds, being riveted on polar cap, and described band bonds or is welded on positive plate and is not coated with on the foil of active substance.
A kind of lithium ion battery the most according to claim 1, it is characterised in that: described negative plate is welded by band or bonds, being riveted on polar cap, and described band bonds or is welded on negative plate and is not coated with on the foil of active substance.
A kind of lithium ion battery the most according to claim 1, it is characterised in that: described band selects sheet metal strip or radio frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610464921.2A CN106025340A (en) | 2016-06-24 | 2016-06-24 | Lithium-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610464921.2A CN106025340A (en) | 2016-06-24 | 2016-06-24 | Lithium-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106025340A true CN106025340A (en) | 2016-10-12 |
Family
ID=57086136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610464921.2A Pending CN106025340A (en) | 2016-06-24 | 2016-06-24 | Lithium-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106025340A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007141523A (en) * | 2005-11-15 | 2007-06-07 | Furukawa Battery Co Ltd:The | Lithium ion battery |
| CN201540922U (en) * | 2009-10-23 | 2010-08-04 | 深圳煜城鑫电源科技有限公司 | Lithium ion battery |
| CN201904399U (en) * | 2010-12-17 | 2011-07-20 | 天津力神电池股份有限公司 | Tab-electrode piece structure for improving electrical property of battery |
| CN104953171A (en) * | 2015-06-30 | 2015-09-30 | 深圳市博亿能科技有限公司 | Lithium ion battery |
| CN205828562U (en) * | 2016-06-24 | 2016-12-21 | 中天储能科技有限公司 | A kind of lithium ion battery |
-
2016
- 2016-06-24 CN CN201610464921.2A patent/CN106025340A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007141523A (en) * | 2005-11-15 | 2007-06-07 | Furukawa Battery Co Ltd:The | Lithium ion battery |
| CN201540922U (en) * | 2009-10-23 | 2010-08-04 | 深圳煜城鑫电源科技有限公司 | Lithium ion battery |
| CN201904399U (en) * | 2010-12-17 | 2011-07-20 | 天津力神电池股份有限公司 | Tab-electrode piece structure for improving electrical property of battery |
| CN104953171A (en) * | 2015-06-30 | 2015-09-30 | 深圳市博亿能科技有限公司 | Lithium ion battery |
| CN205828562U (en) * | 2016-06-24 | 2016-12-21 | 中天储能科技有限公司 | A kind of lithium ion battery |
Non-Patent Citations (2)
| Title |
|---|
| 于锟: "《锂离子电池制造职业资格鉴定教材》", 28 February 2005, 北京希望电子出版社，红旗出版社 * |
| 杨德才: "《锂离子电池安全性—原理、设计与测试》", 31 May 2012, 电子科技大学出版社 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |