CN202737051U - Coiled flexibly-packaged lithium ion cell - Google Patents
Coiled flexibly-packaged lithium ion cell Download PDFInfo
- Publication number
- CN202737051U CN202737051U CN2012204166356U CN201220416635U CN202737051U CN 202737051 U CN202737051 U CN 202737051U CN 2012204166356 U CN2012204166356 U CN 2012204166356U CN 201220416635 U CN201220416635 U CN 201220416635U CN 202737051 U CN202737051 U CN 202737051U
- Authority
- CN
- China
- Prior art keywords
- battery core
- main body
- flexible packing
- lithium ionic
- packing lithium
- 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.)
- Expired - Lifetime
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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
-
- 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
Abstract
The utility model discloses a coiled flexibly-packaged lithium ion cell which comprises a main cell body and a pair of lugs, wherein the lugs are extended from the end part of the main cell body, and the lugs are extended from the middle position of the thickness direction of the main cell body and bent to the outer side of the main cell body in a same direction from the middle position, so that an accommodating space capable of accommodating a protection circuit board is formed. Compared with the prior art, a step on the back surface of a cell over-seal position of the coiled flexibly-packaged lithium ion cell disclosed by the utility model almost has no size or a small size, so that the utilization space of a step on the front surface of the over-seal position can be significantly enlarged.
Description
Technical field
The utility model belongs to the lithium ion battery field, and more particularly, the utility model relates to a kind of winding flexible packing lithium ionic battery core.
Background technology
Lithium ion battery has been widely used in the portable sets such as mobile phone, video camera and notebook computer as a kind of environmental protection battery.Along with the development of modern society, various portable sets are all towards " little, light, thin " future development, in order to satisfy the dimensional requirement of portable set, as the lithium ion battery of portable set power source also must do thinner.
In order to guarantee the security performance of lithium ion battery, battery manufacturers can be installed protective circuit plate (PCB) in the closedtop position at lithium-ion electric core usually when assembled battery, and the thickness of protective circuit plate is generally between 2.5 ~ 3.0mm.In order not affect the integral energy density of lithium ion battery, the protective circuit plate is placed in the step position, front of battery core closedtop usually.
In order accurately to locate lug, the lug of winding flexible packing lithium ionic battery core generally all is to draw from the centre position of lithium-ion electric core thickness direction, when top encapsulation, lug will certainly be pullled the package foil of battery core bottom, and a step appears in the back side, battery core closedtop position after causing encapsulating.Because the general thickness of battery core is certain, when step appears in the back side, battery core closedtop position, corresponding the reducing of the step in front, battery core closedtop position meeting, and this front step will be installed the useful space of protective circuit plate exactly.When battery core self thickness hour, the positive shoulder height in closedtop position is corresponding less, step the be unable to hold problem of protective circuit plate in front, battery core closedtop position becomes particularly outstanding.
For example, see also illustrated in figures 1 and 2, existing winding flexible packing lithium ionic battery core comprises battery core main body 10 and the extended a pair of straight lug 11 from the top of battery core main body 10, one end of each lug 11 is provided with hot melt blob of viscose 12, and package foil 13 is passed through hot melt blob of viscose 12 with battery core main body 10 enclosed package.But existing winding flexible packing lithium ionic battery core exists the larger back side, closedtop position step 14, the space that utilizes of seriously having limited front, closedtop position step 15.
At present, except battery core is made lamination, also do not have desirable way to solve above problem in the industry, still, the battery core fail safe of lamination is very poor, seldom adopts in the industry.
In view of this, necessaryly provide a kind of overall dimensions that neither affects battery core, again can front, Effective Raise battery core closedtop position step utilize the winding flexible packing lithium ionic battery core in space.
The utility model content
The purpose of this utility model is: a kind of winding flexible packing lithium ionic battery core is provided, and it can be under the prerequisite that does not affect the battery core overall dimensions, front, Effective Raise closedtop position step utilize the space.
In order to realize the foregoing invention purpose; the utility model provides a kind of winding flexible packing lithium ionic battery core; it comprises the battery core main body and the extended a pair of lug from the end of battery core main body; wherein; a pair of lug extends from the place, centre position of the thickness direction of battery core main body; and from centre position place the outside towards the battery core main body bends in the same way, form the receiving space that can be used for accommodating the protective circuit plate.
A kind of improvement as the utility model winding flexible packing lithium ionic battery core, the kink that the thickness direction along the battery core main body that described lug is provided with the connecting portion that connects the battery core main body, be bent to form by the end of connecting portion extends, and the installation portion that extends away from the battery core main body away from an end of connecting portion from kink.
As a kind of improvement of the utility model winding flexible packing lithium ionic battery core, the bending angle between described connecting portion and the kink is 90 ~ 120 degree.
As a kind of improvement of the utility model winding flexible packing lithium ionic battery core, the bending angle between described kink and the installation portion is 90 ~ 120 degree.
As a kind of improvement of the utility model winding flexible packing lithium ionic battery core, the size of the size of described kink and protective circuit plate coupling.
As a kind of improvement of the utility model winding flexible packing lithium ionic battery core, described installation portion is provided with the hot melt blob of viscose.
With respect to prior art, the utility model winding flexible packing lithium ionic battery core has following useful technique effect: 1) under the situation that does not affect battery core overall dimensions and energy density, can make the collocation of thinner battery core and many moneys protective circuit plate, the scope of application is extensive; 2) compare with common operation, only increased the lug bending operation one, can design a clamping apparatus and realize, whole operating process is simple, efficient is high; 3) back side step of battery core closedtop position does not almost have or is small-sized, can significantly improve the space that utilizes of front, closedtop position step.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model winding flexible packing lithium ionic battery core and useful technique effect thereof are elaborated, wherein:
Fig. 1 is the structural representation of existing winding flexible packing lithium ionic battery core.
Partial schematic diagram when Fig. 2 encapsulates for existing winding flexible packing lithium ionic battery core.
Fig. 3 is the structural representation of the utility model winding flexible packing lithium ionic battery core.
Partial schematic diagram when Fig. 4 is the encapsulation of the utility model winding flexible packing lithium ionic battery core.
Fig. 5 is the structural representation of lug in the utility model winding flexible packing lithium ionic battery core.
Embodiment
In order to make goal of the invention of the present utility model, technical scheme and useful technique effect thereof more clear, below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.Should be understood that, the embodiment of describing in this specification only is in order to explain the utility model, is not in order to limit the utility model.
See also Fig. 3 and shown in Figure 4; the utility model winding flexible packing lithium ionic battery core comprises: battery core main body 20 and the extended a pair of lug 21 from the end of battery core main body 20; wherein; a pair of lug 21 extends from the place, centre position of the thickness direction (the direction T among Fig. 3) of battery core main body 20; locate from the centre position to bend in the same way towards the outside of battery core main body 20 along the thickness direction of battery core main body 20, form the receiving space that can be used for accommodating protective circuit plate (not shown).
Battery core main body 20 is by positive plate, negative plate, and is interval in barrier film between positive plate and the negative plate through reel forming, and a pair of lug 21 extends from the centre position of the tip thickness direction of battery core main body 20.Unlike the prior art be; in the utility model winding flexible packing lithium ionic battery core; a pair of lug 21 extends after the top of battery core main body 20; the outside from the centre position of thickness direction along from the thickness direction of battery core main body 20 to battery core main body 20 bends in the same way, forms the receiving space that can be used for accommodating the protective circuit plate.
Please consult especially shown in Figure 5, for the structural representation of lug 21 (because the structure of a pair of lug is basic identical, so Fig. 5 only describes as an example of a lug example), the kink 211 that the cardinal principle that the centre position place that lug 21 is included in battery core main body 20 thickness directions connects the connecting portion 210 of battery core main body 20, be bent to form by the end of connecting portion 210 is extended along the thickness direction of battery core main body 20, and the installation portion 212 that extends away from battery core main body 20 away from an end of connecting portion 210 from kink 211, wherein, installation portion 212 is provided with hot melt blob of viscose 22.
In execution mode shown in Figure 5, the bending angle between connecting portion 210 and the kink 211 is 90 ~ 120 degree, and the bending angle between kink 211 and the installation portion 212 is 90 ~ 120 degree.Need to prove, the actual size of the protective circuit plate of accommodating as required and the specific requirement of battery core thickness, the size of kink 211 can be adjusted, and the size of the protective circuit plate of accommodating with needs coupling.
Please consult especially shown in Figure 4ly, during actual package, with battery core main body 20 enclosed package, the back side step 24 of battery core closedtop position does not almost have or is small-sized by hot melt blob of viscose 22 for package foil 23, therefore can significantly improve the space that utilizes of front, closedtop position step 25.
Can find out in conjunction with above detailed description to embodiment, with respect to prior art, the utility model winding flexible packing lithium ionic battery core has the following advantages: 1) under the situation that does not affect battery core overall dimensions and energy density, can make the collocation of thinner battery core and many moneys protective circuit plate, the scope of application is extensive; 2) compare with existing operation, only increased the lug bending operation one, can design a clamping apparatus and realize, whole operating process is simple, efficient is high; 3) back side step of battery core closedtop position does not almost have or is small-sized, can significantly improve the space that utilizes of front, closedtop position step.
According to above-mentioned principle, the utility model can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the utility model just for convenience of description.
Claims (6)
1. winding flexible packing lithium ionic battery core; comprise the battery core main body and locate extended a pair of lug from the centre position of the thickness direction of battery core body end; it is characterized in that: the outside towards the battery core main body bends described a pair of lug in the same way from the place, centre position, forms the receiving space that can be used for accommodating the protective circuit plate.
2. winding flexible packing lithium ionic battery core according to claim 1, it is characterized in that: the kink that the thickness direction along the battery core main body that described lug is provided with the connecting portion that connects the battery core main body, be bent to form by the end of connecting portion extends, and the installation portion that extends away from the battery core main body away from an end of connecting portion from kink.
3. winding flexible packing lithium ionic battery core according to claim 2 is characterized in that: the bending angle between described connecting portion and the kink is 90 ~ 120 degree.
4. winding flexible packing lithium ionic battery core according to claim 2 is characterized in that: the bending angle between described kink and the installation portion is 90 ~ 120 degree.
5. winding flexible packing lithium ionic battery core according to claim 2 is characterized in that: the size coupling of the size of described kink and protective circuit plate.
6. winding flexible packing lithium ionic battery core according to claim 2, it is characterized in that: described installation portion is provided with the hot melt blob of viscose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204166356U CN202737051U (en) | 2012-08-21 | 2012-08-21 | Coiled flexibly-packaged lithium ion cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204166356U CN202737051U (en) | 2012-08-21 | 2012-08-21 | Coiled flexibly-packaged lithium ion cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737051U true CN202737051U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204166356U Expired - Lifetime CN202737051U (en) | 2012-08-21 | 2012-08-21 | Coiled flexibly-packaged lithium ion cell |
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| Country | Link |
|---|---|
| CN (1) | CN202737051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467261A (en) * | 2020-11-24 | 2021-03-09 | 东莞新能德科技有限公司 | Battery and device using battery |
| CN112736291A (en) * | 2020-12-24 | 2021-04-30 | 惠州市恒泰科技股份有限公司 | Reverse-winding type battery cell packaging method, battery and processing method thereof |
-
2012
- 2012-08-21 CN CN2012204166356U patent/CN202737051U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467261A (en) * | 2020-11-24 | 2021-03-09 | 东莞新能德科技有限公司 | Battery and device using battery |
| CN112736291A (en) * | 2020-12-24 | 2021-04-30 | 惠州市恒泰科技股份有限公司 | Reverse-winding type battery cell packaging method, battery and processing method thereof |
| CN112736291B (en) * | 2020-12-24 | 2022-07-15 | 惠州市恒泰科技股份有限公司 | Reverse-winding type battery cell packaging method, battery and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |