CN208189725U - A kind of aciculiform lithium ion battery - Google Patents
A kind of aciculiform lithium ion battery Download PDFInfo
- Publication number
- CN208189725U CN208189725U CN201820646450.1U CN201820646450U CN208189725U CN 208189725 U CN208189725 U CN 208189725U CN 201820646450 U CN201820646450 U CN 201820646450U CN 208189725 U CN208189725 U CN 208189725U
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- CN
- China
- Prior art keywords
- aciculiform
- negative pole
- lithium ion
- ion battery
- collecting cylinder
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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
Abstract
The utility model discloses a kind of aciculiform lithium ion battery, aciculiform lithium ion battery includes: metal shell, negative pole currect collecting cylinder, battery core interlayer, conducting medium, and sealing-plug, it is arranged inside metal shell in hollow cavity, and metal shell upper end is equipped with opening, the hollow cavity is in communication with the outside by opening；Negative pole currect collecting cylinder lower part is set in the middle part of hollow cavity, and opening is stretched out on top；Battery core interlayer is successively combined by negative electrode layer, cathode interlayer, anode layer and positive interlayer from the inside to the outside, and battery core interlayer is twined set on the negative pole currect collecting cylinder lower outside face, and anode layer and metal shell are electrically connected, negative electrode layer and negative pole currect collecting cylinder are electrically connected；Conducting medium is filled between metal shell inner sidewall and negative pole currect collecting cylinder；Sealing-plug is set between opening inner wall and negative pole currect collecting cylinder upper outside face, and aciculiform lithium ion battery provided by the utility model is compact-sized, and safety coefficient is high.
Description
Technical field
The utility model relates to field of battery production, in particular to a kind of aciculiform lithium ion battery.
Background technique
Battery variety is various, there is rectangular cell, aluminum-shell battery, soft-package battery, cylindrical battery, and aciculiform battery is due to it at present
Unique size requirement, so that luminous buoy of aciculiform battery when as fishing fan in night fishing, commercial pen universal
Mains lighting supply when night use, the sport outdoor sports product power supply such as toy for children power supply, archery, existing aciculiform
Battery is used only once, and is unable to cycle charge-discharge use.
Utility model content
The main purpose of the utility model is to propose a kind of aciculiform lithium ion battery, it is intended to which solving existing aciculiform battery can only
Using primary, it is unable to the problem of cycle charge-discharge uses.
To achieve the above object, the utility model proposes a kind of aciculiform lithium ion batteries, comprising:
Metal shell, inside are arranged in hollow cavity, and the metal shell upper end is equipped with opening, and the opening will be described
Hollow cavity is in communication with the outside；
Negative pole currect collecting cylinder, lower part are set in the middle part of the hollow cavity, and the opening is stretched out on top；
Battery core interlayer successively includes that negative electrode layer, cathode interlayer, anode layer and positive interlayer are combined from the inside to the outside,
And the battery core interlayer is twined set on the negative pole currect collecting cylinder lower outside face, and the anode layer and the metal shell are electrical
Connection, the negative electrode layer and the negative pole currect collecting cylinder are electrically connected；
Conducting medium is filled between the metal shell inner sidewall and the negative pole currect collecting cylinder；
Sealing-plug is set between the opening inner wall and the negative pole currect collecting cylinder upper outside face.
Preferably, the outer diameter of the metal shell is 2-10 millimeters, is highly 5-80 millimeters.
Preferably, the negative pole currect collecting cylinder is copper needle, copper nickel plating needle or stainless pin.
Preferably, negative pole currect collecting cylinder lower end outside face is equipped with lines, and the lines includes in screw thread, annular knurl line and striped
One kind.
Preferably, the negative electrode layer includes copper foil, and the front and back of the copper foil is laid with negative electrode active material layer.
Preferably, the head end of the copper foil is crimped or is welded with the negative pole currect collecting cylinder lateral surface.
Preferably, the anode layer includes aluminium foil, and the front and back of the aluminium foil is laid with positive electrode active material layer.
Preferably, the tail end of the aluminium foil is connected with metal shell inner wall crimping.
Preferably, the cathode interlayer or positive interlayer are single layer PE diaphragm or PP diaphragm or ceramic diaphragm or multilayer PE/
PP diaphragm or PP/PE/PP diaphragm.
Preferably, metal shell inner sidewall corresponding with the opening is convexly equipped with annular protrusion, the annular protrusion
It is interference fitted with the sealing-plug.
In technical solutions of the utility model, by the way that negative pole currect collecting column is arranged in the metal shell of aciculiform lithium ion battery
Body, and twined on the outside of the negative pole currect collecting cylinder and set battery core interlayer, the battery core interlayer successively include negative electrode layer, cathode interlayer,
Anode layer, and positive interlayer, compact-sized, the charging cycle for realizing aciculiform battery utilizes, and the battery core interlayer is arranged
Two layers of diaphragm, i.e., positive interlayer and cathode interlayer, so that this aciculiform lithium ion battery safety coefficient is high.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic diagram of the section structure of an embodiment of aciculiform lithium ion battery provided by the utility model；
Fig. 2 is that battery core interlayer volume is set to the stereoscopic schematic diagram on the negative current collector in Fig. 1；
Fig. 3 is the first embodiment of the negative electrode layer and negative pole currect collecting cylinder in Fig. 2；
Fig. 4 is the second embodiment of the negative electrode layer and negative pole currect collecting cylinder in Fig. 2；
Fig. 5 is the 3rd embodiment of the negative electrode layer and negative pole currect collecting cylinder in Fig. 2；
Fig. 6 is the schematic cross-section in Fig. 1 after the expansion of battery core interlayer.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection scope of the requires of the utility model.
Aciculiform battery is due to its unique size requirement at present so that its aciculiform battery as fishing fan at night
Mains lighting supply when luminous buoy when fishing, commercial pen universal night use, the sport such as toy for children power supply, archery family
Outer sports products power supply, existing aciculiform battery are used only once, and are unable to cycle charge-discharge use.
In consideration of it, Fig. 1 to Fig. 6 is needle provided by the utility model the utility model proposes a kind of aciculiform lithium ion battery
The embodiment of shape secondary cell.
Referring to Fig. 1, the aciculiform lithium ion battery includes metal shell 1, negative pole currect collecting cylinder 2, battery core interlayer 3, leads
Dielectric 4 and sealing-plug 5；It is arranged inside the metal shell 1 in hollow cavity, and 1 upper end of the metal shell is equipped with and opens
Mouth 11；2 lower part of negative pole currect collecting cylinder is set in the middle part of the hollow cavity, and the opening 11 is stretched out on top；The battery core folder
Layer 3 successively includes negative electrode layer 31, cathode interlayer 32, anode layer 33 and positive interlayer 34, the battery core interlayer 3 from the inside to the outside
The 2 lower outside face of negative pole currect collecting cylinder that is set to is twined, and is electrically connected with 1 inner wall of metal shell, the negative electrode layer 31
It is electrically connected with the negative pole currect collecting cylinder 2；The conducting medium 4 is filled in 1 inner sidewall of metal shell and the cathode
Between afflux cylinder 2；The sealing-plug 5 be set to 11 inner walls of the opening and the 2 upper outside face of negative pole currect collecting cylinder it
Between.
In technical solutions of the utility model, by the way that negative pole currect collecting column is arranged in the metal shell 1 of aciculiform lithium ion battery
Body 2, and twined on the outside of the negative pole currect collecting cylinder 2 and set battery core interlayer 3, the battery core interlayer 3 successively includes negative electrode layer 31, bears
Pole interlayer 32, anode layer 33, and positive interlayer 34, described compact-sized, the charging cycle for realizing aciculiform battery utilizes, and
The battery core interlayer 3 is provided with two layers of diaphragm, i.e., positive interlayer 34 and cathode interlayer 32, so that this aciculiform lithium ion battery safety
Coefficient is high.
It can be packed into short space for the ease of the aciculiform lithium ion battery, in the present embodiment the metal shell 1
Outer diameter be 2-10 millimeters, be highly 5-80 millimeters, the outer diameter of the metal shell 1 is set as 2-10 millimeters, is both easier to realize
Battery core interlayer is plugged, volume is not again excessive, is readily adapted for use in the applicable scene of short space.
The negative pole currect collecting cylinder 2 is copper needle, copper nickel plating needle or stainless pin, and the negative pole currect collecting cylinder 2 uses copper
Needle, copper nickel plating needle or stainless pin, usual copper needle, copper nickel plating needle or stainless pin diameter can be 0.1-2 millimeters, and length is desirable
5-80 millimeters are adapted to the metal shell 1, enable the battery core volume of this aciculiform lithium ion battery to be made sufficiently small, into one
Step ensure that the compact of this aciculiform lithium ion battery, and copper needle, copper nickel plating needle or stainless pin surface are smooth, for the ease of the electricity
Twining for core interlayer 3 is set, and please refers to 3 in the present embodiment to shown in Fig. 5, and 2 lower end outside face of negative pole currect collecting cylinder is equipped with lines 21,
The lines 21 includes screw thread 21a, annular knurl line 21b, one of striped 21c, if lines 21 is screw thread 21a in Fig. 3, in Fig. 4
Lines 21 is that lines 21 is striped 21c in annular knurl line 21b, Fig. 5.Lines 21 is set on negative pole currect collecting cylinder 2, is increased described
The contact area of negative pole currect collecting cylinder 2 and battery core interlayer 3 enables battery core interlayer 3 firmly to twine and is located at the afflux cylinder 2
Lower end outside face.
It please refers to shown in Fig. 1 and Fig. 5, the negative electrode layer 31 includes copper foil 311, and the front and back of the copper foil 311 is equal
It is laid with negative electrode active material layer 312.The two sides of the negative electrode layer 31 is provided with negative electrode active material layer 312 and improves cathode
The efficiency of reaction.The anode layer 33 includes aluminium foil 331, and the front and back of the aluminium foil 331 is laid with positive electrode active material
Matter layer 332.The two sides of the anode layer 33 is provided with the efficiency that positive electrode active material layer 332 improves anode reaction.
Please refer to Fig. 1 and Fig. 6, head end (close to described 2 one end of negative pole currect collecting cylinder) and the cathode of the copper foil 311
The crimping of 2 lateral surface of afflux cylinder or welding, the tail end (far from described 2 one end of negative pole currect collecting cylinder) of the aluminium foil 331 with it is described
The crimping of metal shell 1 or welding.The copper foil 311 and 2 lateral surface of negative pole currect collecting cylinder crimping are welded so that the copper
The electric connection of foil 311 and the negative pole currect collecting cylinder 2 is more reliable, outside the copper foil 311 and the negative pole currect collecting cylinder 2
Side crimping or welding are so that the electric connection of the copper foil 311 and the negative pole currect collecting cylinder 2 is more reliable, the aluminium foil
331 tail ends crimp or weld the electric connection that ensure that the aluminium foil 331 and the metal shell 1 with the metal shell 1,
Metal shell 1 can be made as the conductor of anode, usual metal shell 1 identical as the material of the aluminium foil 331 is also aluminum
Respectively corresponding positive and cathode the electric connection setting of material, the aluminium foil 331 and the copper foil 311, ensure that this needle
The stabilization of shape inside lithium ion cell electric current passes through.Certainly need to strike off the active material of corresponding part before crimping or welding
Layer, in order to crimp or weld.
In order to avoid short circuit occurs between this aciculiform inside lithium ion cell positive and negative anodes, please refer to shown in Fig. 2 and Fig. 6, institute
Stating cathode interlayer 32 or positive interlayer 34 is single layer PE diaphragm or PP diaphragm or ceramic diaphragm or multilayer PE/PP diaphragm or PP/
PE/PP diaphragm, the cathode interlayer 32, positive interlayer 34 separate the positive and negative electrode of battery, prevent the two poles of the earth from contacting and short
Road, and then ensure that the Electrical Safety and electricity consumption reliability of this aciculiform lithium ion battery.
Leakage in order to prevent, refering to Figure 1, the metal shell 1 and 11 corresponding inner sidewall projections of the opening
There is annular protrusion 12, the annular protrusion 12 is interference fitted with the sealing-plug 5.The annular protrusion 12 passes through channelling machine from institute
It states to press on the outside of metal shell 1 and be formed, so that 1 inner sidewall of metal shell is inwardly formed annular protrusion 12, the annular protrusion 12
Setting so that the sealing-plug 5 and the negative pole currect collecting cylinder 2 and 1 inner sidewall of metal shell are interference fits, guarantee
Battery does not generate the phenomenon of leakage.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of aciculiform lithium ion battery characterized by comprising
Metal shell, inside are arranged in hollow cavity, and the metal shell upper end is equipped with opening；
Negative pole currect collecting cylinder, lower part are set in the middle part of the hollow cavity, and the opening is stretched out on top；
Battery core interlayer successively includes negative electrode layer, cathode interlayer, anode layer and positive interlayer, the battery core interlayer from the inside to the outside
The negative pole currect collecting cylinder lower outside face that is set to is twined, and the anode layer and the metal shell are electrically connected, the cathode
Layer is electrically connected with the negative pole currect collecting cylinder；
Conducting medium is filled between the metal shell inner sidewall and the negative pole currect collecting cylinder；And
Sealing-plug is set between the opening inner wall and the negative pole currect collecting cylinder upper outside face.
2. aciculiform lithium ion battery as described in claim 1, which is characterized in that the outer diameter of the metal shell is 2-10 milli
Rice, is highly 5-80 millimeters.
3. aciculiform lithium ion battery as described in claim 1, which is characterized in that the negative pole currect collecting cylinder is copper needle, copper plating
Nickel needle or stainless pin.
4. aciculiform lithium ion battery as described in claim 1, which is characterized in that negative pole currect collecting cylinder lower end outside face is equipped with line
Road, the lines include one of screw thread, annular knurl line and striped.
5. aciculiform lithium ion battery as described in claim 1, which is characterized in that the negative electrode layer includes copper foil, the copper foil
Front and back be laid with negative electrode active material layer.
6. aciculiform lithium ion battery as claimed in claim 5, which is characterized in that the head end of the copper foil and the negative pole currect collecting
The crimping of cylinder lateral surface or welding.
7. aciculiform lithium ion battery as described in claim 1, which is characterized in that the anode layer includes aluminium foil, the aluminium foil
Front and back be laid with positive electrode active material layer.
8. aciculiform lithium ion battery as claimed in claim 7, which is characterized in that the tail end of the aluminium foil and the metal shell
Inner wall crimping is connected.
9. aciculiform lithium ion battery as described in claim 1, which is characterized in that the cathode interlayer or positive interlayer are single layer
PE diaphragm or PP diaphragm or ceramic diaphragm or multilayer PE/PP diaphragm or PP/PE/PP diaphragm.
10. aciculiform lithium ion battery as described in claim 1, which is characterized in that the metal shell is corresponding with the opening
Inner sidewall be convexly equipped with annular protrusion, the annular protrusion and the sealing-plug are interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820646450.1U CN208189725U (en) | 2018-05-02 | 2018-05-02 | A kind of aciculiform lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820646450.1U CN208189725U (en) | 2018-05-02 | 2018-05-02 | A kind of aciculiform lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208189725U true CN208189725U (en) | 2018-12-04 |
Family
ID=64432215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820646450.1U Active CN208189725U (en) | 2018-05-02 | 2018-05-02 | A kind of aciculiform lithium ion battery |
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| CN (1) | CN208189725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036210A (en) * | 2021-03-05 | 2021-06-25 | 广东格林赛福能源科技有限公司 | Preparation method of needle type chargeable and dischargeable battery |
-
2018
- 2018-05-02 CN CN201820646450.1U patent/CN208189725U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036210A (en) * | 2021-03-05 | 2021-06-25 | 广东格林赛福能源科技有限公司 | Preparation method of needle type chargeable and dischargeable battery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 1905, Block A, Building 2, COFCO Xiangyun, Ailian Community, Longcheng Street, Longgang District, Shenzhen, Guangdong 518172 Patentee after: SHENZHEN DONGLIYUAN DEVELOPMENT CO.,LTD. Address before: 518116 room 506, 5 / F, Wanhui building, Longgang Avenue, Longgang street, Longgang District, Shenzhen, Guangdong Patentee before: SHENZHEN DONGLIYUAN DEVELOPMENT CO.,LTD. |
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| CP02 | Change in the address of a patent holder |