CN204204982U - A kind of fastening lithium ionic cell - Google Patents
A kind of fastening lithium ionic cell Download PDFInfo
- Publication number
- CN204204982U CN204204982U CN201420660370.3U CN201420660370U CN204204982U CN 204204982 U CN204204982 U CN 204204982U CN 201420660370 U CN201420660370 U CN 201420660370U CN 204204982 U CN204204982 U CN 204204982U
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- Prior art keywords
- lithium ionic
- cell
- fastening lithium
- adhesive layer
- conductive adhesive
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- 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
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- 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
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Abstract
The utility model discloses a kind of fastening lithium ionic cell, mainly comprise anode cover, negative electrode casing and laminated cell, also comprise conductive adhesive layer, laminated cell is bonding by conductive adhesive layer with negative electrode casing.The utility model high power fastening lithium ionic cell; be connected by conductive adhesive layer between plus plate current-collecting body with anode cover; with the existing plus plate current-collecting body that leans on compared with anode cover physical contact; greatly can reduce the internal resistance of battery; make battery can high power discharge; simultaneously due to the characteristic that conductive adhesive layer expands with heat and contract with cold, the function that protection battery is not damaged can be played.
Description
Technical field
The utility model relates to lithium ion battery, particularly relates to a kind of high-power fastening lithium ionic cell.
Background technology
Button battery (Button Cell) is also known as fastening lithium ionic cell, and it refers to that overall dimension is as a little button non-rectangle lithium ion battery of a size.Current fastening lithium ionic cell is generally circle, and thinner thickness.
Existing button cell laminated cell and anode cover are generally discharge after being communicated with by physical contact, and physical contact often exists some shortcomings, such as because of the short circuit of external circuit or abuse, whole circuit temperature cannot be caused too high, thus burn out the problem of battery.
Utility model content
In view of the above, the utility model is necessary to provide a kind of structure simple and the high power fastening lithium ionic cell protecting battery when outside short circuit.
A kind of fastening lithium ionic cell, mainly comprise anode cover, negative electrode casing and laminated cell, also comprise conductive adhesive layer, conductive adhesive layer is arranged between laminated cell and anode cover.
Further, described laminated cell comprises at least one positive plate, negative plate and barrier film, and barrier film is arranged between arbitrary neighborhood positive plate and negative plate.
Further, described positive plate is the circular sheet-like structures being relatively provided with two straight flanges, and wherein a straight flange is provided with aluminium foil lug.
Further, described negative plate is the circular sheet-like structures being relatively provided with two straight flanges, and wherein a straight flange is provided with Copper Foil lug.
Further, described negative plate diameter 0.5 to 1mm larger than positive plate diameter.
Further, described diaphragm diameter 0.5 to 1mm larger than negative plate diameter.
Further, described positive plate has one end of aluminium foil lug and negative plate to have one end of Copper Foil lug to be that relative direction is stacked alternately.
Further, described laminated cell contacts an outermost layer with anode cover be aluminium foil surface, passes through together with conductive adhesive between aluminium foil surface with anode cover.
Further, described conductive adhesive layer is mixed by conductive particle and macromolecular material.
The beneficial effects of the utility model are: be connected by conductive adhesive layer between plus plate current-collecting body with anode cover; with the existing plus plate current-collecting body that leans on compared with anode cover physical contact; greatly can reduce the internal resistance of battery; make battery can high power discharge; simultaneously due to the characteristic that conductive adhesive layer expands with heat and contract with cold, the function that protection battery is not damaged can be played.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model fastening lithium ionic cell;
Fig. 2 is the laminated cell Making programme structure chart of the utility model fastening lithium ionic cell.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually, below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
A kind of fastening lithium ionic cell shown in Fig. 1, mainly comprises anode cover 11, negative electrode casing 12, laminated cell 20 and conductive adhesive layer 30.
Laminated cell 20 is arranged between anode cover 11 and negative electrode casing 12, and laminated cell 20 one side welds together with negative electrode casing 12, and relative another side is bonding by conductive adhesive layer 30 with anode cover 11.
Laminated cell 20 comprises at least one positive plate 21, negative plate 22 and barrier film 23, barrier film 23 is arranged between positive plate 11 and negative plate 12, described laminated cell 20 outermost layer is the positive plate 21 that one side scribbles positive electrode, and the aluminium foil surface on positive plate 21 exposes.Described positive plate 21 is for being provided with the seemingly circular configuration of opposite straight edges, and with aluminium foil, wherein a straight flange is provided with aluminium foil lug 211, and described negative plate 22 is for being provided with the seemingly circular configuration of opposite straight edges, and with Copper Foil, wherein a straight flange is provided with Copper Foil lug 221.Described negative plate 22 diameter 0.5-1mm larger than positive plate 21 diameter; The shape of the corresponding positive plate 21 of described barrier film 23 shape and negative plate 22, diameter 0.5-1mm larger than negative plate 22.
Incorporated by reference to consulting Fig. 2, described positive plate 21 and negative plate 22 are stacked alternately, and make the limit of lug be positioned at opposite side to be superimposed, and so, the aluminium foil lug of all positive plates 21 is positioned at side, and the Copper Foil lug of all negative plates 22 is positioned at side.After described laminated cell 20 has stacked, some aluminium foil lugs 211 are welded together by ultrasonic welding machine, and some Copper Foil lugs 221 are welded together by ultrasonic welding machine and one section of nickel strap.After having welded, laminated cell 20 has been assembled.
Be arranged on by laminated cell 20 between anode cover 11 and negative electrode casing 12, nickel strap is welded together by laser welder and negative electrode casing 12, and the most top layer aluminium foil of laminated cell 20 and anode cover 11 are bonded together by conductive adhesive layer 30.Further, there is sealing ring the outer of negative electrode casing 12.
Described conductive adhesive layer 30 is made up of macromolecular material and conductive particle; conductive particle is evenly distributed in macromolecular material; at normal temperatures; conductive particle can contact with each other together; when battery is because of external short circuit or abuse, macromolecular material can be caused to expand, thus conductive particle is separated from each other out; whole circuit is disconnected, thus plays the effect of protection battery.After battery temperature declines, macromolecular material shrinks again, and conductive particle contacts again, and battery can be resumed work again.
To sum up; the utility model fastening lithium ionic cell is by arranging conductive adhesive layer; laminated cell outermost layer aluminium foil is connected by conductive adhesive layer with between anode cover; with the existing plus plate current-collecting body that leans on compared with anode cover physical contact; greatly can reduce the internal resistance of battery; make battery can high power discharge, simultaneously due to the characteristic that conductive adhesive layer expands with heat and contract with cold, the function that protection battery is not damaged can be played.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (8)
1. a fastening lithium ionic cell, mainly comprise anode cover (11), negative electrode casing (12) and laminated cell (20), it is characterized in that: also comprise conductive adhesive layer (30), conductive adhesive layer (30) is arranged between laminated cell (20) and anode cover (11).
2. fastening lithium ionic cell as claimed in claim 1, it is characterized in that: described laminated cell (20) comprises at least one positive plate (21), negative plate (22) and barrier film (23), and barrier film (23) is arranged between arbitrary neighborhood positive plate (21) and negative plate (22).
3. fastening lithium ionic cell as claimed in claim 2, is characterized in that: described positive plate (21) is the circular sheet-like structures being relatively provided with two straight flanges, and wherein a straight flange is provided with aluminium foil lug (211).
4. fastening lithium ionic cell as claimed in claim 3, is characterized in that: described negative plate (22) is the circular sheet-like structures being relatively provided with two straight flanges, and wherein a straight flange is provided with Copper Foil lug (221).
5. fastening lithium ionic cell as claimed in claim 2, is characterized in that: described negative plate (22) diameter 0.5 to 1mm larger than positive plate (21) diameter.
6. fastening lithium ionic cell as claimed in claim 2, is characterized in that: described barrier film (23) diameter 0.5 to 1mm larger than negative plate (22) diameter.
7. fastening lithium ionic cell as claimed in claim 4, is characterized in that: described positive plate (21) has one end of aluminium foil lug (211) and negative plate (22) to have one end of Copper Foil lug (221) to be that relative direction is stacked alternately.
8. fastening lithium ionic cell as claimed in claim 2, it is characterized in that: it is aluminium foil surface that described laminated cell (20) contacts an outermost layer with anode cover (11), bonded together by conductive adhesive layer (30) between aluminium foil surface and anode cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660370.3U CN204204982U (en) | 2014-11-05 | 2014-11-05 | A kind of fastening lithium ionic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660370.3U CN204204982U (en) | 2014-11-05 | 2014-11-05 | A kind of fastening lithium ionic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204982U true CN204204982U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420660370.3U Active CN204204982U (en) | 2014-11-05 | 2014-11-05 | A kind of fastening lithium ionic cell |
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| CN (1) | CN204204982U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299164A (en) * | 2016-08-22 | 2017-01-04 | 深圳拓邦新能源技术有限公司 | Button type lithium ion battery and preparation method thereof |
| CN111082156A (en) * | 2019-12-30 | 2020-04-28 | 漳州万宝能源科技股份有限公司 | Button cell and manufacturing method thereof |
| CN111180652A (en) * | 2020-02-24 | 2020-05-19 | 珠海冠宇电池有限公司 | Button cell and electronic product |
| CN113328134A (en) * | 2021-05-31 | 2021-08-31 | 珠海冠宇电池股份有限公司 | Battery with a battery cell |
-
2014
- 2014-11-05 CN CN201420660370.3U patent/CN204204982U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299164A (en) * | 2016-08-22 | 2017-01-04 | 深圳拓邦新能源技术有限公司 | Button type lithium ion battery and preparation method thereof |
| CN111082156A (en) * | 2019-12-30 | 2020-04-28 | 漳州万宝能源科技股份有限公司 | Button cell and manufacturing method thereof |
| WO2021136163A1 (en) * | 2019-12-30 | 2021-07-08 | 漳州万宝能源科技股份有限公司 | Button cell and manufacturing method therefor |
| CN111180652A (en) * | 2020-02-24 | 2020-05-19 | 珠海冠宇电池有限公司 | Button cell and electronic product |
| CN113328134A (en) * | 2021-05-31 | 2021-08-31 | 珠海冠宇电池股份有限公司 | Battery with a battery cell |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |