CN202034444U - Lithium ion power battery - Google Patents
Lithium ion power battery Download PDFInfo
- Publication number
- CN202034444U CN202034444U CN2011200209061U CN201120020906U CN202034444U CN 202034444 U CN202034444 U CN 202034444U CN 2011200209061 U CN2011200209061 U CN 2011200209061U CN 201120020906 U CN201120020906 U CN 201120020906U CN 202034444 U CN202034444 U CN 202034444U
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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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Abstract
The utility model provides a lithium ion power battery. The electric field distribution of an electric core is uniform; the battery has small internal resistance; the specific power is high; and the high-rate discharge requirement can be met. The lithium ion power battery comprises a battery core and a shell that surrounds the battery core, wherein the battery core is internally provided with a plurality of anode sheets, isolation membranes and cathode sheets that are arranged and connected in a winding way or a superposing way; and the isolation membranes are spaced between the adjacent anode sheets and cathode sheets. The lithium ion power battery is characterized in that each anode sheet comprises an anode tab and an anode collector; each cathode sheet comprises a cathode tab and a cathode collector; the battery core also comprises an anode plate and a cathode plate that are arranged on two end surfaces of the anode sheet, the isolation membrane and the cathode sheet respectively; the anode tab extends out of the anode collector and is arranged in the clearance between the anode plate and the anode collector; and the cathode tab extends out of the cathode collector and is arranged in the clearance between the cathode plate and the cathode collector.
Description
Technical field
The utility model belongs to the lithium-ion-power cell technical field, relates in particular to a kind of extreme ear structure and connected mode thereof of lithium-ion-power cell.
Background technology
Lithium ion battery is the rechargeable battery of new generation that grows up behind the MH-Ni battery, because of have the operating voltage height, energy density is big, fail safe good, in light weight, self discharge is little, have extended cycle life, memory-less effect, advantage such as pollution-free become new energy development priority research areas.
In the existing lithium ion battery extreme ear structure commonly used be an external lug on the collector or on the collector of each sheet or each circle the lug of an attached same position, the extreme ear structure that is superimposed then.Because lug is little, the lug skewness, when high current charge-discharge, lug generates heat because of electric current is excessive, easily produces safety problem.When high current charge-discharge, lug or pole connecting portion be if having oxide layer, a greasy dirt, perhaps connects looseningly etc. between lug and the pole, all inevitably causes local location overheated, forms potential safety hazard, and make the consistency of battery poor.
At present, the lug of industrial power lithium-ion battery (or pole) all is to adopt bolted to be connected, to use ultrasonic bonding with syndeton between positive and negative electrode.It is loosening easily when being given a shock to adopt bolted to be connected battery, causes junction contact internal resistance increase, battery performance to worsen, junction heating even sparking in the charge and discharge process and the danger that causes battery to have to blast; Adopt that ultrasonic bonding exists that complex process, cost are higher, phenomenon such as not prison welding during the welding of multilayer pole plate.
Summary of the invention
The purpose of this utility model is to provide a kind of lithium-ion-power cell, and electric core Electric Field Distribution is even, and the internal resistance of cell is little, and specific power is big, satisfies and realizes the high-multiplying power discharge requirement.
The utility model is achieved through the following technical solutions:
Lithium ion battery comprises battery and surrounds the housing of battery, comprises in the battery that multi-disc positive plate, barrier film and negative plate adopt coiling or stacked system to arrange and be connected, and barrier film is interval between adjacent positive plate, the negative plate; It is characterized in that: described each sheet positive plate has included positive pole ear and plus plate current-collecting body, and each sheet negative plate has included negative lug and negative current collector; Described battery also includes the both ends of the surface that anode plate and negative plates lay respectively at positive plate, barrier film and negative plate; Positive pole ear extends in the outside and gap between anode plate and plus plate current-collecting body of plus plate current-collecting body, and negative lug is extended in the outside and gap between negative plates and negative current collector of negative current collector.
Described plus plate current-collecting body width dimensions is not more than the negative current collector width dimensions, and the negative current collector width dimensions is less than the barrier film width dimensions.
The thickness of described positive pole ear is identical with the thickness of plus plate current-collecting body, and the thickness of described negative lug is identical with the thickness of negative current collector.
To sum up the beneficial effects of the utility model are:
Lithium ion battery of the present utility model is because each sheet negative plate has included negative lug and negative current collector; Described battery also includes the both ends of the surface that anode plate and negative plates lay respectively at positive plate, barrier film and negative plate; Positive pole ear extends in the outside and gap between anode plate and plus plate current-collecting body of plus plate current-collecting body, and negative lug is extended in the outside and gap between negative plates and negative current collector of negative current collector.Generally, the extreme ear structure that the utility model provides and the syndeton of lug, adopting the collector blank tape is lug, does not need external lug, do not need insulating tape to carry out sealing-in, adopt the battery of this structure, specific energy is big, and internal resistance is little, CURRENT DISTRIBUTION is even, reduced the operation that connects lug, helped industrialization and use, can enhance productivity greatly.Lug of the present utility model and pole pass through conducting resinl, with the pole plate punching press sealing that has pole, do not need to connect or use ultrasonic bonding by bolted commonly used, avoided becoming flexible easily when battery is given a shock because of adopting bolted to be connected, the junction of causing contact internal resistance increase, battery performance worsen, junction heating even sparking in the charge and discharge process and the danger that causes battery to have to blast; And adopt that ultrasonic bonding exists that complex process, cost are higher, phenomenon such as not prison welding during the welding of multilayer pole plate.
The utility model is suitable for laminated type or convoluted electrokinetic cell to be used, and adopts the extreme ear structure of lithium-ion-power cell provided by the utility model, have easy to operate, material is simple, and is in light weight, cost is low, power density is big, the production efficiency advantages of higher.Be convenient to produce go up continuously and produce, enhance productivity greatly.
Description of drawings
Fig. 1 is the positive pole ear cross section structure schematic diagram of the utility model lithium ion battery;
Fig. 2 is the lug syndeton schematic diagram of the annular lithium ion battery embodiment of the utility model lithium ion battery;
Fig. 3 be the square of the utility model lithium ion battery or column lithium ion battery embodiment lug syndeton schematic diagram.
Embodiment
The utility model discloses a kind of lithium ion battery, comprise battery and surround the housing of battery, comprise in the battery that multi-disc positive plate, barrier film and negative plate adopt coiling or stacked system to arrange and be connected, barrier film is interval between adjacent positive plate, the negative plate; It is characterized in that: described each sheet positive plate has included positive pole ear and plus plate current-collecting body, and each sheet negative plate has included negative lug and negative current collector; Described battery also includes the both ends of the surface that anode plate and negative plates lay respectively at positive plate, barrier film and negative plate; Positive pole ear extends in the outside and gap between anode plate and plus plate current-collecting body of plus plate current-collecting body, and negative lug is extended in the outside and gap between negative plates and negative current collector of negative current collector.
Described plus plate current-collecting body width dimensions is not more than the negative current collector width dimensions, and the negative current collector width dimensions is less than the barrier film width dimensions.
The thickness of described positive pole ear is identical with the thickness of plus plate current-collecting body, and the thickness of described negative lug is identical with the thickness of negative current collector.
The width dimensions of described positive pole ear is 2-5mm, and the width dimensions of described negative lug is 2-5mm.Can save ear pole material greatly, reduce cost.
As Fig. 1, it during the positive plate deployed condition planar sheet structure, include positive pole ear 1 and plus plate current-collecting body 2 connects as one, positive pole ear 1 is identical with the length dimension of plus plate current-collecting body 2, and the width dimensions of positive pole ear 1 adds that the width dimensions of plus plate current-collecting body 2 promptly equals the width dimensions of positive plate.
Described positive pole ear 1 material is an aluminium foil, and is identical with plus plate current-collecting body 2 materials; Do not need additional other materials.
Described negative lug material is Copper Foil or aluminium foil, and is identical with the negative current collector material; Do not need additional other materials.
Embodiment one:
As Fig. 2, described lithium ion battery is a kind of lithium ion battery of hollow structure, described housing includes the inner casing 6 of the hollow of the shell 5 of loop configuration structure and loop configuration, and plus plate current-collecting body 2, negative current collector 10 and barrier film 13 close winds are arranged in the cavity between shell 5 and inner casing 6; Anode plate 4 and negative plates 12 are the annulus laminated structure, are covered in the two ends of shell 5 and inner casing 6 respectively, and the outer end of each sheet positive pole ear 1 all is connected with anode plate 4, and the outer end of each sheet negative lug 9 all is connected with negative plates 12; The outer face of anode plate 4 is provided with more than one Positive Poles 3, described positive pole ear 1 is connected conducting with Positive Poles 3 by anode plate 4, described Positive Poles 3 is fixed on the anode plate 4, and described anode plate 4 is tightly connected by conducting resinl 7 with positive pole ear 1; The structure of described negative lug 9, negative pole pole 11 and negative plates 12 and connected mode are with anodal identical.
On anode plate 4, described anode plate 4 is tightly connected by conducting resinl 7 with positive pole ear 1 described Positive Poles 3 by riveted and fixed; Described anode plate and inner casing and shell are by fluid sealant 8 insulation, and be fixedly connected by punching press then; The structure of described negative lug, negative pole pole and negative plates and connected mode are with anodal identical.
Embodiment two:
As Fig. 3, described lithium ion battery is a kind of square or column lithium ion battery, includes shell 5, and plus plate current-collecting body 2, negative current collector 10 and barrier film 13 are arranged in parallel and are arranged in the cavity of shell 5; Anode plate 4 and negative plates 12 are laminated structure, are covered in the two ends of shell 5 respectively, and the outer end of each sheet positive pole ear all is connected with anode plate 4, and the outer end of each sheet negative lug 9 all is connected with negative plates 12; The outer face of anode plate 4 is provided with more than one Positive Poles 3, described positive pole ear is connected conducting with Positive Poles 3 by anode plate 4, described Positive Poles 3 is fixed on the anode plate 4, and described anode plate 4 is tightly connected by conducting resinl 7 with positive pole ear 1; The structure of described negative lug 9, negative pole pole 11 and negative plates 12 and connected mode are with anodal identical.
Described Positive Poles is connected by riveted and fixed with anode plate, and described anode plate and housing insulate by fluid sealant, and is tightly connected by the punching press shell end; Described negative pole pole is connected by riveted and fixed with negative plates; Described negative plates and housing insulate by fluid sealant, and are tightly connected by the punching press of punching press shell end
Above-mentioned listed specific implementation is nonrestrictive, and to one skilled in the art, in not departing from the utility model scope, various improvement and the variation carried out all belong to protection range of the present utility model.
Claims (10)
1. lithium-ion-power cell comprises battery and surrounds the housing of battery, comprises in the battery that multi-disc positive plate, barrier film and negative plate adopt coiling or stacked system to arrange and be connected, and barrier film is interval between adjacent positive plate, the negative plate; It is characterized in that: described each sheet positive plate has included positive pole ear and plus plate current-collecting body, and each sheet negative plate has included negative lug and negative current collector; Described battery also includes the both ends of the surface that anode plate and negative plates lay respectively at positive plate, barrier film and negative plate; Positive pole ear extends in the outside and gap between anode plate and plus plate current-collecting body of plus plate current-collecting body, and negative lug is extended in the outside and gap between negative plates and negative current collector of negative current collector.
2. lithium-ion-power cell as claimed in claim 1 is characterized in that: described plus plate current-collecting body width dimensions is not more than the negative current collector width dimensions, and the negative current collector width dimensions is less than the barrier film width dimensions.
3. lithium-ion-power cell as claimed in claim 2 is characterized in that: the thickness of described positive pole ear is identical with the thickness of plus plate current-collecting body, and the thickness of described negative lug is identical with the thickness of negative current collector.
4. lithium-ion-power cell as claimed in claim 2 is characterized in that: the width dimensions of described positive pole ear is 2-5mm, and the width dimensions of described negative lug is 2-5mm.
5. as each described lithium-ion-power cell in the claim 1 to 4, it is characterized in that: during described positive plate deployed condition is the planar sheet structure, include positive pole ear (1) and plus plate current-collecting body (2) connects as one, positive pole ear (1) is identical with the length dimension of plus plate current-collecting body (2), and the width dimensions of positive pole ear (1) adds that the width dimensions of plus plate current-collecting body (2) promptly equals the width dimensions of positive plate.
6. lithium-ion-power cell as claimed in claim 5 is characterized in that: described positive pole ear (1) material is an aluminium foil, and is identical with plus plate current-collecting body (2) material.
7. lithium-ion-power cell as claimed in claim 5 is characterized in that: described negative lug material is Copper Foil or aluminium foil, and is identical with the negative current collector material.
8. lithium-ion-power cell as claimed in claim 5, it is characterized in that: described lithium ion battery is a kind of lithium ion battery of hollow structure, described housing includes the inner casing (6) of the hollow of the shell (5) of loop configuration structure and loop configuration, and plus plate current-collecting body (2), negative current collector (10) and barrier film (13) close wind are arranged the cavity that is arranged between shell (5) and the inner casing (6); Anode plate (4) and negative plates (12) are the annulus laminated structure, be covered in the two ends of shell (5) and inner casing (6) respectively, the outer end of each sheet positive pole ear (1) all is connected with anode plate (4), and the outer end of each sheet negative lug (9) all is connected with negative plates (12); The outer face of anode plate (4) is provided with more than one Positive Poles (3), described positive pole ear (1) is connected conducting with Positive Poles (3) by anode plate (4), described Positive Poles (3) is fixed on the anode plate (4), and described anode plate (4) is tightly connected by conducting resinl (7) with positive pole ear (1); The structure of described negative lug (9), negative pole pole (11) and negative plates (12) and connected mode are with anodal identical.
9. lithium-ion-power cell as claimed in claim 5, it is characterized in that: described lithium ion battery is a kind of square or column lithium ion battery, include shell (5), plus plate current-collecting body (2), negative current collector (10) and barrier film (13) are arranged in parallel and are arranged in the cavity of shell (5); Anode plate (4) and negative plates (12) are laminated structure, are covered in the two ends of shell (5) respectively, and the outer end of each sheet positive pole ear all is connected with anode plate (4), and the outer end of each sheet negative lug (9) all is connected with negative plates (12); The outer face of anode plate (4) is provided with more than one Positive Poles (3), described positive pole ear is connected conducting with Positive Poles (3) by anode plate (4), described Positive Poles (3) is fixed on the anode plate (4), and described anode plate (4) is tightly connected by conducting resinl (7) with positive pole ear (1); The structure of described negative lug (9), negative pole pole (11) and negative plates (12) and connected mode are with anodal identical.
10. lithium-ion-power cell as claimed in claim 8 or 9, it is characterized in that: described Positive Poles is connected by riveted and fixed with anode plate, and described anode plate and housing be by fluid sealant (8) insulation, and be tightly connected by the punching press shell end; Described negative pole pole is connected by riveted and fixed with negative plates; Described negative plates and housing insulate by fluid sealant, and are tightly connected by the punching press of punching press shell end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200209061U CN202034444U (en) | 2011-01-21 | 2011-01-21 | Lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200209061U CN202034444U (en) | 2011-01-21 | 2011-01-21 | Lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034444U true CN202034444U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200209061U Expired - Lifetime CN202034444U (en) | 2011-01-21 | 2011-01-21 | Lithium ion power battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN202034444U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610850A (en) * | 2011-01-21 | 2012-07-25 | 珠海银通新能源有限公司 | Power lithium-ion battery |
| CN104882635A (en) * | 2015-05-30 | 2015-09-02 | 深圳市格瑞普电池有限公司 | Laminated lithium ion battery, battery pack comprising same and pole piece of laminated lithium ion battery |
| US10103385B2 (en) | 2012-04-16 | 2018-10-16 | Lg Chem, Ltd. | Electrode assembly including cathode and anode having different welding portion shapes and secondary battery including the same |
| CN110635109A (en) * | 2019-07-29 | 2019-12-31 | 北京航空航天大学 | Lithium metal electrode prepared by 3D printing technology and preparation method thereof |
-
2011
- 2011-01-21 CN CN2011200209061U patent/CN202034444U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610850A (en) * | 2011-01-21 | 2012-07-25 | 珠海银通新能源有限公司 | Power lithium-ion battery |
| CN102610850B (en) * | 2011-01-21 | 2014-06-25 | 珠海银隆新能源有限公司 | Power lithium-ion battery |
| US10103385B2 (en) | 2012-04-16 | 2018-10-16 | Lg Chem, Ltd. | Electrode assembly including cathode and anode having different welding portion shapes and secondary battery including the same |
| CN104882635A (en) * | 2015-05-30 | 2015-09-02 | 深圳市格瑞普电池有限公司 | Laminated lithium ion battery, battery pack comprising same and pole piece of laminated lithium ion battery |
| CN110635109A (en) * | 2019-07-29 | 2019-12-31 | 北京航空航天大学 | Lithium metal electrode prepared by 3D printing technology and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHUHAI YINLONG NEW ENERGY CO., LTD. Free format text: FORMER NAME: ZHUHAI YINTONG ENERGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee after: Zhuhai Yinlong New Energy Co.,Ltd. Address before: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee before: ZHUHAI YINTONG ENERGY Co.,Ltd. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Qin Yi Inventor after: Cai Huiqun Inventor after: Zhang Bin Inventor before: Qin Yi Inventor before: Cai Huiqun Inventor before: Zhang Bing |
|
| CB03 | Change of inventor or designer information | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee after: Zhuhai silver dragon new energy Limited by Share Ltd. Address before: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee before: Zhuhai Yinlong New Energy Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 519000 Guangdong province Zhuhai City Sanzao town Jinwan District Jinhu Road No. 16 Patentee after: YINLONG ENERGY Co.,Ltd. Address before: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee before: Zhuhai silver dragon new energy Limited by Share Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |
|
| CX01 | Expiry of patent term |