CN207320260U - A kind of LiFePO4 battery core - Google Patents
A kind of LiFePO4 battery core Download PDFInfo
- Publication number
- CN207320260U CN207320260U CN201721489861.6U CN201721489861U CN207320260U CN 207320260 U CN207320260 U CN 207320260U CN 201721489861 U CN201721489861 U CN 201721489861U CN 207320260 U CN207320260 U CN 207320260U
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- CN
- China
- Prior art keywords
- battery core
- layer
- cushion
- spring
- colloid layer
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- 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.)
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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 LiFePO4 battery core,Including electrical shell body,Heat conduction circle,Positive pole aluminium foil and the first colloid layer,The top of the electrically shell body is provided with positive electrode cap,Spring is provided with below the positive electrode cap,Partition plate is provided with below the spring,Flexible exhaust pipe is provided with the right side of the spring,Heat conduction circle and heat dissipating layer are provided with to existing LiFePO4 battery core,Timely radiated to battery core using heat conduction circle and heat dissipating layer,The chemical substance inside battery core is avoided excessively heated and on fire to explode,Prevent injury to personnel,Cushion and insurance stratum reticulare are provided with to existing LiFePO4 battery core,Utilize the colloid layer and porous web cushion inside cushion,Effectively prevent the inner core that battery core is pierced through in sharppointed article extruding,Colloid layer can also prevent electrolyte solution to reveal at the same time,Avoid the reduction of battery core capacity,Protection binding post is corroded,Extend the service life of battery core.
Description
Technical field
The utility model belongs to technical field of lithium batteries, and in particular to a kind of LiFePO4 battery core.
Background technology
Ferric phosphate lithium cell, refers to the lithium ion battery by the use of LiFePO4 as positive electrode.The cathode of lithium ion battery
Material mainly has cobalt acid lithium, LiMn2O4, lithium nickelate, ternary material, LiFePO4 etc., and the composition of lithium ion secondary rechargeable battery is
It is such：Battery core+protection circuit plates.It is exactly battery core that rechargeable battery, which removes protection circuit plates,.It is the electric power storage in rechargeable battery
Part.The quality of battery core directly determines the quality of rechargeable battery.
In place of existing LiFePO4 battery core still has several drawbacks, such as the environment that ferric phosphate lithium cell group uses is complicated more
Phenomena such as change, short circuit easily occurs battery for battery core in use, is squeezed, fever, it is possible to make whole lithium battery group break
Electricity, thus cause electrical equipment can not normal use, and the chemical substance inside battery core be possible to it is excessively heated occur it is on fire
Even explode, so as to cause injury to personnel, there are security risk, battery core is subject to sharppointed article to extrude, and is likely to result in battery core
Inner core is damaged, and electrolyte solution leakage, so as to cause the reduction of battery core capacity, corrodes binding post, reduction of service life, may lead
Cause personnel are poisoned, and endanger health.
Utility model content
It is existing to solve to propose in above-mentioned background technology the purpose of this utility model is to provide a kind of LiFePO4 battery core
In place of LiFePO4 battery core still has several drawbacks, such as the environment that ferric phosphate lithium cell group uses is complicated and changeable, and battery makes
Phenomena such as short circuit easily occurs for battery core during, is squeezed, fever, it is possible to power off whole lithium battery group, so as to cause
Electrical equipment can not normal use, and the chemical substance inside battery core is possible to excessively heated and on fire or even explosion occurs, from
And cause injury to personnel, there are security risk, battery core is subject to sharppointed article to extrude, and is likely to result in the inner core breakage of battery core, electricity
Electrolyte solution is revealed, so as to cause the reduction of battery core capacity, corrodes binding post, and reduction of service life, may result in personnel's poisoning,
The problem of endangering health.
To achieve the above object, the utility model provides following technical solution：A kind of LiFePO4 battery core, including it is electrically outer
Housing, heat conduction circle, positive pole aluminium foil and the first colloid layer, the top of the electrically shell body are provided with positive electrode cap, the cathode
Spring is provided with below cap, partition plate is provided with below the spring, flexible exhaust pipe, institute are provided with the right side of the spring
State and connecting filament be provided with below partition plate, inner core is provided with below the connecting filament, gasket is provided with below the inner core,
Fixative is provided with the outside of the inner core, the front surface of the inner core is provided with adhesive tape, and the positive pole aluminium foil is installed on inner core
Inside, be provided with membrane for polymer on the right side of the positive pole aluminium foil, negative copper foil be provided with the right side of the membrane for polymer,
Insurance silk screen layer is provided with the right side of the negative copper foil, heat dissipating layer, the heat dissipation are provided with the right side of the insurance silk screen layer
The right side of layer is provided with cushion, and the heat conduction circle is installed on the top upper surface of inner core, and the first colloid layer is installed on
The inside left of cushion, outside isolation film is provided with the right side of the first colloid layer, and is set on the left of the first colloid layer
The first isolation film is equipped with, porous web cushion, the left side of the porous web cushion are provided with the left of first isolation film
The second separation layer is provided with, the second colloid layer, a left side for the second colloid layer are provided with the left of second separation layer
Side is provided with heat resistant spacer layer.
Preferably, it is fixedly connected between the positive electrode cap and partition plate by spring.
Preferably, the flexible exhaust pipe is provided with two altogether, and correspondence is installed on spring to two flexible exhaust pipes respectively
The left and right sides, be fixedly connected by partition plate between described two flexible exhaust pipes.
Preferably, it is fixedly connected between the inner core and cushion by adhesive tape.
Preferably, the first colloid layer and the second colloid layer are provided with two, and two the first colloid layers altogether
It is corresponding installed in the inside of cushion respectively with the second colloid layer.
Compared with prior art, the beneficial effects of the utility model are：The utility model is scientific and reasonable for structure, safe to use
It is convenient, heat conduction circle and heat dissipating layer are provided with to existing LiFePO4 battery core, using heat conduction circle and heat dissipating layer to battery core timely
Heat dissipation, avoids the chemical substance inside battery core and excessively heated and on fire explodes, it is therefore prevented that injury to personnel, to existing phosphoric acid
Iron lithium cell is provided with cushion and insurance stratum reticulare, using the colloid layer and porous web cushion inside cushion, effectively
Sharppointed article extruding is prevented to pierce through the inner core of battery core, while colloid layer can also prevent electrolyte solution to reveal, and avoid
The reduction of battery core capacity, protection binding post are corroded, and extend the service life of battery core, avoid human body poisoning, it is ensured that people
The health of member, and battery core short circuit occurred inside is prevented, avoid battery pack power-off, it is ensured that the normal of electrical equipment makes
With, using insure silk screen battery core occur short circuit when cut off electric current in time, avoid operating personnel occur electric shock accidents.
Brief description of the drawings
Fig. 1 is the structure sectional view of the utility model；
Fig. 2 is the structure sectional view of the utility model inner core；
Fig. 3 is the structure sectional view of the utility model cushion；
In figure：1- battery cores shell body, 2- fixatives, 3- adhesive tapes, 4- inner cores, 5- connecting filaments, 6- springs, 7- positive electrode caps, 8-
Partition plate, 9- flexible exhaust pipes, 10- gaskets, 11- heat conduction circle, 12- heat dissipating layers, 13- cushions, 14- insurances silk screen layer, 15- anode
Copper foil, 16- membrane for polymer, 17- positive pole aluminium foils, isolation film on the outside of 18-, the first colloids of 19- layer, the first separation layers of 20-,
21- porous webs cushion, the second separation layers of 22-, the second colloids of 23- layer, 24- heat resistant spacer layers.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1, Fig. 2 and Fig. 3, the utility model provide a kind of technical solution：A kind of LiFePO4 battery core, including electricity
Property shell body 1, heat conduction circle 11,17 and first colloid layer 19 of positive pole aluminium foil, the top of electrical shell body 1 are provided with positive electrode cap 7,
The lower section of positive electrode cap 7 is provided with spring 6, and the lower section of spring 6 is provided with partition plate 8, and the right side of spring 6 is provided with flexible exhaust pipe 9,
The lower section of partition plate 8 is provided with connecting filament 5, and the lower section of connecting filament 5 is provided with inner core 4, and the lower section of inner core 4 is provided with gasket 10, interior
The outside of core 4 is provided with fixative 2, and the front surface of inner core 4 is provided with adhesive tape 3, and positive pole aluminium foil 17 is installed on the inside of inner core 4,
The right side of positive pole aluminium foil 17 is provided with membrane for polymer 16, and the right side of membrane for polymer 16 is provided with negative copper foil 15, anode copper
The right side of paper tinsel 15 is provided with insurance silk screen layer 14, and the right side of insurance silk screen layer 14 is provided with heat dissipating layer 12, the right side of heat dissipating layer 12
Cushion 13 is provided with, heat conduction circle 11 is installed on the top upper surface of inner core 4, and the first colloid layer 19 is installed on cushion 13
Inside left, the right side of the first colloid layer 19 are provided with outside isolation film 18, and the left side of the first colloid layer 19 is provided with the
One isolation film 20, the left side of the first isolation film 20 are provided with porous web cushion 21, and the left side of porous web cushion 21 is provided with
Second separation layer 22, the left side of the second separation layer 22 are provided with the second colloid layer 23, and the left side of the second colloid layer 23 is set
There is heat resistant spacer layer 24.
In order to enable the installation between positive electrode cap 7 and partition plate 8 is fixed, 7 crushing of positive electrode cap is avoided, reduces the vibration of battery core,
In the present embodiment, it is fixedly connected between preferable positive electrode cap 7 and partition plate 8 by spring 6.
In order to enable keeping the air pressure inside battery core in the present embodiment, battery core expanded by heating is avoided, preferable elasticity exhaust
Pipe 9 is provided with two altogether, and two flexible exhaust pipes 9 are corresponding installed in the left and right sides of spring 6, two flexible exhaust pipes respectively
It is fixedly connected between 9 by partition plate 8.
In order to enable the installation between inner core 4 and cushion 13 is fixed, reduce battery core side and vibrated be subject to generation is hit,
In the present embodiment, it is fixedly connected between preferable inner core 4 and cushion 13 by adhesive tape 3.
In order to enable sharppointed article thorn does not wear cushion 13, and prevent electrolyte solution from revealing, in the present embodiment, preferably
The first colloid layer 19 and the second colloid layer 23 be provided with two, and two the first colloid layers 19 and the second colloid altogether
Layer 23 is corresponding installed in the inside of cushion 13 respectively.
The operation principle and process for using of the utility model：After the utility model installs, by a certain number of phosphoric acid
Iron lithium cell shell body 1 is held together, binding post in connection, and installs circuit board, is formed battery pack, is passed through spring 6
Elasticity prevent positive electrode cap 7 battery core be superimposed store when crushing, and coordinate flexible exhaust pipe 9 to the vibration that electrical equipment is run into
Row buffering processing, sends out gas thermogenetic by inner core 4 by flexible exhaust pipe 9 and discharges battery core shell body 1, it is ensured that battery core will not be sent out
Raw expansion, by the 12 timely radiating treatment of heat dissipating layer inside the heat conduction circle and inner core 4 on 4 top of inner core, when sharppointed article extrudes
Battery core shell body 1,13 stress of cushion in the outside of inner core 4, and by the first colloid layer 19 cushion 13 inside with it is more
Hole pattern cushion 21 stops stress, while stops that electrolyte solution is revealed by 24 and second colloid layer 23 of heat resistant spacer layer,
It ensure that the normal table operation of battery core.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of LiFePO4 battery core, including electrical shell body (1), heat conduction circle (11), positive pole aluminium foil (17) and the first colloid
Layer (19), it is characterised in that：The top of the electrically shell body (1) is provided with positive electrode cap (7), the lower section of the positive electrode cap (7)
Spring (6) is provided with, partition plate (8) is provided with below the spring (6), the right side of the spring (6) sets flexible exhaust
Manage (9), be provided with connecting filament (5) below the partition plate (8), inner core (4) is provided with below the connecting filament (5), it is described
Gasket (10) is provided with below inner core (4), is provided with fixative (2) on the outside of the inner core (4), before the inner core (4)
Surface is provided with adhesive tape (3), and the positive pole aluminium foil (17) is installed on the inside of inner core (4), the right side of the positive pole aluminium foil (17)
Membrane for polymer (16) is provided with, negative copper foil (15), the negative copper foil are provided with the right side of the membrane for polymer (16)
(15) insurance silk screen layer (14) is provided with the right side of, heat dissipating layer (12) is provided with the right side of the insurance silk screen layer (14), it is described
Cushion (13) is provided with the right side of heat dissipating layer (12), the heat conduction circle (11) is installed on the top upper surface of inner core (4), described
First colloid layer (19) is installed on the inside left of cushion (13), is provided with the right side of the first colloid layer (19) outer
Side isolation film (18), and the first isolation film (20) is provided with the left of the first colloid layer (19), first isolation film (20)
Left side is provided with porous web cushion (21), and the second separation layer (22), institute are provided with the left of the porous web cushion (21)
State and the second colloid layer (23) is provided with the left of the second separation layer (22), be provided with the left of the second colloid layer (23)
Heat resistant spacer layer (24).
A kind of 2. LiFePO4 battery core according to claim 1, it is characterised in that：The positive electrode cap (7) and partition plate (8) it
Between be fixedly connected by spring (6).
A kind of 3. LiFePO4 battery core according to claim 1, it is characterised in that：The flexible exhaust pipe (9) is set altogether
There are two, and two flexible exhaust pipes (9) are corresponding installed in the left and right sides of spring (6), described two flexible exhaust pipes respectively
(9) it is fixedly connected between by partition plate (8).
A kind of 4. LiFePO4 battery core according to claim 1, it is characterised in that：The inner core (4) and cushion (13)
Between be fixedly connected by adhesive tape (3).
A kind of 5. LiFePO4 battery core according to claim 1, it is characterised in that：The first colloid layer (19) and
Two colloid layers (23) are provided with two altogether, and two the first colloid layers (19) and the second colloid layer (23) correspond to peace respectively
Mounted in the inside of cushion (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721489861.6U CN207320260U (en) | 2017-11-10 | 2017-11-10 | A kind of LiFePO4 battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721489861.6U CN207320260U (en) | 2017-11-10 | 2017-11-10 | A kind of LiFePO4 battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207320260U true CN207320260U (en) | 2018-05-04 |
Family
ID=62401343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721489861.6U Expired - Fee Related CN207320260U (en) | 2017-11-10 | 2017-11-10 | A kind of LiFePO4 battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207320260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698365A (en) * | 2018-12-05 | 2019-04-30 | 上海空间电源研究所 | A kind of lithium metal battery with elastic buffer structure |
| CN111477992A (en) * | 2020-03-10 | 2020-07-31 | 安徽潜川动力锂电科技有限公司 | Explosion-proof protective housing based on lithium iron phosphate battery |
-
2017
- 2017-11-10 CN CN201721489861.6U patent/CN207320260U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698365A (en) * | 2018-12-05 | 2019-04-30 | 上海空间电源研究所 | A kind of lithium metal battery with elastic buffer structure |
| CN111477992A (en) * | 2020-03-10 | 2020-07-31 | 安徽潜川动力锂电科技有限公司 | Explosion-proof protective housing based on lithium iron phosphate battery |
| CN111477992B (en) * | 2020-03-10 | 2022-10-04 | 安徽潜川动力锂电科技有限公司 | Explosion-proof protection shell based on lithium iron phosphate battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20201110 |