CN208923206U - Lithium ion battery hard shell encapsulating structure - Google Patents
Lithium ion battery hard shell encapsulating structure Download PDFInfo
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- CN208923206U CN208923206U CN201821494920.3U CN201821494920U CN208923206U CN 208923206 U CN208923206 U CN 208923206U CN 201821494920 U CN201821494920 U CN 201821494920U CN 208923206 U CN208923206 U CN 208923206U
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- groove
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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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- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model is lithium ion battery hard shell encapsulating structure, by substrate, enclosing and capping composition, substrate is equipped with the expansion groove that longitudinal positive and negative tab draws groove and its exit, the expansion groove that positive and negative tab draws groove is located at the opposite one end of substrate, two tabs draw equally spaced two groups of radial grooves that the substrate between groove is equipped with alternate insertion positive/negative plate collector, wherein one group of radial groove draws groove with anode ear and is connected, another group of radial groove draws groove with negative electrode lug and is connected, the periphery that its positive and negative tab of substrate draws groove is equipped with the enclosing embedded groove of rectangle, its bottom surface of enclosing is equipped with the boss being interference fitted with enclosing embedded groove, boss, which is equipped with, respectively corresponds the cambered surface groove that corresponding tab draws groove, capping is interference fitted with enclosing outer rim.The utility model has easy to process, assembling, saves working hour and the outstanding advantages suitable for large-scale production.
Description
Technical field
The utility model belongs to field of batteries, and in particular to a kind of lithium ion battery hard shell encapsulating structure.
Background technique
The development of battery packaging technology is long-standing, and commercial lithium battery is two-dimentional lithium battery at present, i.e. positive and negative anodes pole
The shortcomings that piece is superimposed in parallel or takeup type structure, this structure is between energy density and power density that there are contradictions, as
The active material of raising battery capacity and energy density, electrode plates coating is The more the better, because battery capacity and participating in electricity
The active material total amount of chemical reaction is related, but with the increase of active material thickness, the transmission range of lithium ion in the electrodes
Increase, power density is caused to reduce, the high rate capability of battery is deteriorated.Therefore power density limits the increase of pole piece thickness,
Electrode plates thickness is generally no more than 150 μm.
Energy density and power density are conflicts in two-dimentional battery, in order to obtain the lithium electricity of high comprehensive performance
Pond, it is necessary to which balancing battery energy density and power density, so the concept and products thereof of three-dimensional lithium battery is come into being, but it is hard
Shell encapsulation haves the defects that complex steps, operation are time-consuming.
Summary of the invention
The utility model is to solve existing three-dimensional its hard shell of lithium battery encapsulation skill time-consuming there are complex steps, operation
Art problem, and propose a kind of lithium ion battery hard shell encapsulating structure.
The utility model takes following technical scheme to achieve the above object: this encapsulating structure is by substrate, enclosing and buckle closure
Composition, the substrate are equipped with the expansion groove that longitudinal positive and negative tab draws groove and its exit, and the positive and negative tab is drawn
The expansion groove of groove is located at the opposite one end of substrate, and it is positive and negative equipped with alternate insertion that two tabs draw the substrate between groove
Equally spaced two groups of radial grooves of pole piece current collector are connected wherein one group of radial groove draws groove with anode ear, another
Group radial groove draws groove with negative electrode lug and is connected, and the periphery that its positive and negative tab of the substrate draws groove is equipped with enclosing for rectangle
Embedded groove is kept off, its bottom surface of the enclosing is equipped with the boss being interference fitted with enclosing embedded groove, and boss is equipped with and respectively corresponds corresponding pole
Ear draws the cambered surface groove of groove, and the buckle closure and enclosing outer rim are interference fitted.
The utility model can also take following technical measures:
The width of the radial groove is 1.1-1.2mm, and the groove depth of radial groove is equal to the thickness of positive/negative plate collector.
The substrate, enclosing and buckle closure are the transparent bodies.
The radial groove respectively with insertion positive/negative plate collector transition fit.
The beneficial effects of the utility model and advantage are: this encapsulating structure is respectively embedded into attached in the radial groove of substrate
Active material positive/negative plate collector and positive and negative tab can constitute a complete internal circuit.Enclosing and substrate, envelope
The interference fit connection type of mechanical presses is respectively adopted between lid and enclosing, changes the connection for applying glue bond in the prior art
Mode has not only effectively saved packaging time, and is avoided that a series of shadows occurred due to viscose glue and electrolyte react
Ring the disadvantage of battery performance.Electrolyte, completion of dropwise addition is added dropwise on the inside of the forward direction enclosing of assembling capping in this encapsulating structure
The encapsulation for completing battery that capping can be easy is buckled afterwards.The utility model is solid with encapsulating structure, saves working hour, Ke Yibao
Hinder battery performance stabilization, convenient for the outstanding advantages of large-scale production.
Detailed description of the invention
Attached drawing 1 is example structure schematic diagram.
Attached drawing 2 is board structure enlarged diagram in Fig. 1 embodiment.
Attached drawing 3 is enclosing structural schematic diagram in Fig. 1 embodiment.
Attached drawing 4 is Figure 1A-A section enlarged diagram.
Marked in the figure: 1 substrate, 1-1 anode ear draws groove, and 1-2 negative electrode lug draws groove, and 1-3 expansion groove, 1-4 is just
Pole piece current collector groove group, 1-5 negative electrode tab collector groove group, 1-6 enclosing embedded groove, 2 cappings, 2-1 capping boss, 3 enclosings,
3-1 boss, 3-2 cambered surface groove.
Specific embodiment
Lithium ion battery hard shell encapsulating structure embodiment as shown in Figure 1,2,3, 4 is made of substrate 1, enclosing 3 and capping 2,
The extension that the substrate 1 is equipped with longitudinal anode ear extraction groove 1-1 and negative electrode lug extraction groove 1-2 and their exits is recessed
Slot, the expansion groove 1-3 that positive and negative tab draws groove are located at the opposite one end of substrate 1.The expansion groove 1- of area increased
3 are convenient for the measurement of chemical property.
Two tabs draw equally spaced two groups of radial directions that the substrate 1 between groove is equipped with alternate insertion positive/negative plate collector
Groove, i.e. positive plate collector groove group 1-4 and negative electrode tab collector groove group 1-5, wherein positive plate radial groove group 1-4 with
Anode ear draws groove 1-1 and is connected, and negative electrode tab radial groove group 1-5 draws groove 1-2 with negative electrode lug and is connected.
The width of the radial groove of embodiment is 1.1-1.2mm, and the groove depth of radial groove is equal to positive/negative plate collector
Thickness.
The enclosing that the periphery that the anode ear of the substrate 1 draws groove 1-1 and negative electrode lug extraction groove 1-2 is equipped with rectangle is embedding
Enter slot 1-6.
Its bottom surface of enclosing 3 shown in Fig. 3 is equipped with the boss 3-1 being interference fitted with enclosing embedded groove 1-6, and boss is equipped with difference
Corresponding corresponding tab draws the cambered surface groove 3-2 of groove.
Capping 2 shown in Fig. 4 is equipped with capping boss 2-1, and the inner wall for covering boss is identical as enclosing outer rim shape, size,
It covers boss 2-1 and 3 outer rim of enclosing is interference fitted.
Substrate 1, enclosing 3 and the capping 2 of embodiment are photosensitive resins through the one-time formed transparent body of laser 3D printing, are convenient for
The variation that inside battery structure occurs after the completion of observation cell package.
The radial groove of the utility model substrate respectively with the positive/negative plate collector transition fit of insertion and it is not easily to fall off.
Claims (3)
1. lithium ion battery hard shell encapsulating structure, it is characterised in that: this encapsulating structure is made of substrate, enclosing and buckle closure, described
Substrate is equipped with the expansion groove that longitudinal positive and negative tab draws groove and its exit, and the positive and negative tab draws the extension of groove
Groove is located at the opposite one end of substrate, and two tabs draw the substrate between groove and are equipped with alternate insertion positive/negative plate collector
Equally spaced two groups of radial grooves, be connected wherein one group of radial groove and anode ear draw groove, another group of radial groove
Groove to be drawn with negative electrode lug to be connected, the periphery that its positive and negative tab of the substrate draws groove is equipped with the enclosing embedded groove of rectangle,
Its bottom surface of the enclosing is equipped with the boss being interference fitted with enclosing embedded groove, and boss, which is equipped with, respectively corresponds corresponding tab extraction groove
Cambered surface groove, the buckle closure and enclosing outer rim be interference fitted, and the width of the radial groove is 1.1-1.2mm, radial groove
Groove depth be equal to positive/negative plate collector thickness.
2. lithium ion battery hard shell encapsulating structure according to claim 1, it is characterised in that: the substrate, enclosing and envelope
Lid is the transparent body.
3. lithium ion battery hard shell encapsulating structure according to claim 1, it is characterised in that: the radial groove respectively with
It is embedded in positive/negative plate collector transition fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494920.3U CN208923206U (en) | 2018-09-13 | 2018-09-13 | Lithium ion battery hard shell encapsulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494920.3U CN208923206U (en) | 2018-09-13 | 2018-09-13 | Lithium ion battery hard shell encapsulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208923206U true CN208923206U (en) | 2019-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821494920.3U Active CN208923206U (en) | 2018-09-13 | 2018-09-13 | Lithium ion battery hard shell encapsulating structure |
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| CN (1) | CN208923206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326744A (en) * | 2018-09-13 | 2019-02-12 | 深圳光韵达机电设备有限公司 | Lithium ion battery hard shell encapsulating structure and its processing method |
-
2018
- 2018-09-13 CN CN201821494920.3U patent/CN208923206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326744A (en) * | 2018-09-13 | 2019-02-12 | 深圳光韵达机电设备有限公司 | Lithium ion battery hard shell encapsulating structure and its processing method |
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