CN202503074U - High-capacity lithium iron phosphate power battery - Google Patents
High-capacity lithium iron phosphate power battery Download PDFInfo
- Publication number
- CN202503074U CN202503074U CN2012200929230U CN201220092923U CN202503074U CN 202503074 U CN202503074 U CN 202503074U CN 2012200929230 U CN2012200929230 U CN 2012200929230U CN 201220092923 U CN201220092923 U CN 201220092923U CN 202503074 U CN202503074 U CN 202503074U
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- CN
- China
- Prior art keywords
- battery case
- iron phosphate
- battery
- cathode output
- output end
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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.)
- Expired - Fee Related
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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 discloses a high-capacity lithium iron phosphate power battery which comprises a battery case, a battery cell, an anode output terminal, a cathode output terminal and an electrolyte. The battery cell and the electrolyte are sealed in the battery case, the battery cell is formed by stacking of a lithium iron phosphate positive plate, a diaphragm and a negative plate, the diaphragm is positioned between the lithium iron phosphate positive plate and the negative plate, one end of the anode output terminal is electrically connected with the lithium iron phosphate positive plate correspondingly, one end of the cathode output terminal is electrically connected with the negative plate correspondingly, the other ends of the anode output terminal and the cathode output terminal are positioned and penetrated through the battery case and exposed outside the battery case, and the anode output terminal and the cathode output terminal are insulated from the battery case. A monomer capacity of the lithium iron phosphate power battery reaches above 200Ah, the service life reaches above 2,000 cycles, and the battery has a good explosion-proof function and a high safety function.
Description
Technical field
The utility model relates to the battery technology field, relates in particular to a kind of large-capacity lithium iron phosphate electrokinetic cell.
Background technology
Electrokinetic cell in the market mainly includes lead-acid battery, Ni-MH battery and lithium ion battery etc.; Compare; Lithium ion battery have higher fail safe, environmentally friendly, have extended cycle life, performance advantage such as discharge platform is stable, become the electrokinetic cell that development potentiality is arranged most.
But; The ferric phosphate lithium cell of traditional handicraft manufacturing has weak point; As: the internal resistance of battery itself is bigger, and it is electrically not good to cause it to charge and discharge, and its tap density is low; Cause battery capacity lower again, the back-up source that can not well be applied in wind-force, solar energy small hydropower station, USP is handled, the big function electricity consumption product and the accumulation power supply systems such as heavy-current discharge device of power-equipment; And the security performance of the short circuit of the electrokinetic cell inside of traditional handicraft manufacturing is unstable, is prone to blast and combustion case.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of large-capacity lithium iron phosphate electrokinetic cell, and the capacity of this lithium iron phosphate dynamic battery is big, and long service life has good safety function, environment-friendly function.
The utility model for the technical scheme that solves its technical problem and adopt is: a kind of large-capacity lithium iron phosphate electrokinetic cell; Comprise battery case, battery, cathode output end, cathode output end is sub and electrolyte; Said battery and electrolyte all seal and are placed in the said battery case; Said battery is cascaded by iron phosphate lithium positive pole sheet, barrier film and negative plate each other; Said barrier film location is located between said iron phosphate lithium positive pole sheet and the said negative plate; One end correspondence of said cathode output end is electrically connected on said iron phosphate lithium positive pole sheet; One end correspondence of said cathode output end is electrically connected on said negative plate, and the other end of said positive and negative electrode lead-out terminal is located respectively and is set in said battery case and is exposed to outside the said battery case, and said positive and negative electrode lead-out terminal all insulate with maintenance between the said battery case;
On said battery case, also be provided with the injecting electrolytic solution hole that rupture pressure disc and is connected with said battery case inside in addition, the detachable also sealing of seal places said liquid injection hole.
Further improvement as the utility model; Said battery case comprises outer cover body and the loam cake that removably connects with it; Cover on said and offer a pair of through hole; One end of said positive and negative electrode lead-out terminal can wear this respectively to through hole and place said outer cover body, and the other end of said positive and negative electrode lead-out terminal can be exposed to this respectively to the through hole outside, and said cathode output end and cathode output end are respectively and be provided with an insulated enclosure sheet between its corresponding through hole.
The beneficial effect of the utility model is: the battery of this lithium iron phosphate dynamic battery is cascaded by iron phosphate lithium positive pole sheet, barrier film and negative plate successively each other; Wherein, Iron phosphate lithium positive pole sheet and negative plate adopt self-control coating process processing procedure, and barrier film adopts the polymer inlet material synthetic, thereby can successfully control impurity; The monomer capacity of having realized battery reaches more than the 200Ah, reaches 2000 useful life more than the circulation; And on battery case, also be provided with a rupture pressure disc, and can play explosion-proof better, have very high safety function.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment to the large-capacity lithium iron phosphate electrokinetic cell of the utility model is elaborated with reference to the accompanying drawings.
A kind of large-capacity lithium iron phosphate electrokinetic cell of the utility model; Comprise battery case 1, battery 2, cathode output end 3, cathode output end 4 and electrolyte; Said battery and electrolyte all seal and are placed in the said battery case; Said battery is cascaded by iron phosphate lithium positive pole sheet 20, barrier film 21 and negative plate 22 each other; Said barrier film location is located between said iron phosphate lithium positive pole sheet and the said negative plate, and an end correspondence of said cathode output end 3 is electrically connected on said iron phosphate lithium positive pole sheet, and an end correspondence of said cathode output end 4 is electrically connected on said negative plate; The other end of said cathode output end 3, cathode output end 4 is located respectively and is set in said battery case 1 and is exposed to outside the said battery case, and said positive and negative electrode lead-out terminal all insulate with maintenance between the said battery case;
On said battery case, also be provided with the injecting electrolytic solution hole that rupture pressure disc 5 and is connected with said battery case inside in addition, seal 6 detachable also sealings place said liquid injection hole.
In the present embodiment; Said battery case comprises outer cover body and the loam cake that removably connects with it, and said battery case adopts aluminium material, and it is in light weight; And be difficult for being corroded; Cover on said and offer a pair of through hole, an end of said positive and negative electrode lead-out terminal can wear this respectively to through hole and place said outer cover body, and the other end of said positive and negative electrode lead-out terminal can be exposed to this respectively to the through hole outside; And said cathode output end and cathode output end are respectively and be provided with an insulated enclosure sheet 7 between its corresponding through hole, and this insulated enclosure sheet adopts high-temperature insulation material.
Claims (2)
1. large-capacity lithium iron phosphate electrokinetic cell; Comprise battery case (1), battery (2), cathode output end (3), cathode output end (4) and electrolyte; Said battery and electrolyte all seal and are placed in the said battery case; It is characterized in that: said battery is cascaded by iron phosphate lithium positive pole sheet (20), barrier film (21) and negative plate (22) each other; Said barrier film location is located between said iron phosphate lithium positive pole sheet and the said negative plate; One end correspondence of said cathode output end (3) is electrically connected on said iron phosphate lithium positive pole sheet; One end correspondence of said cathode output end (4) is electrically connected on said negative plate, and the other end of said positive and negative electrode lead-out terminal (3,4) is located respectively and is set in said battery case (1) and is exposed to outside the said battery case, and said positive and negative electrode lead-out terminal all insulate with maintenance between the said battery case;
On said battery case, also be provided with the injecting electrolytic solution hole that rupture pressure disc (5) and is connected with said battery case inside in addition, the detachable also sealing of seal (6) places said liquid injection hole.
2. large-capacity lithium iron phosphate electrokinetic cell according to claim 1; It is characterized in that: said battery case comprises outer cover body and the loam cake that removably connects with it; Cover on said and offer a pair of through hole; One end of said positive and negative electrode lead-out terminal can wear this respectively to through hole and place said outer cover body; The other end of said positive and negative electrode lead-out terminal can be exposed to this respectively to the through hole outside, and said cathode output end and cathode output end are respectively and be provided with an insulated enclosure sheet (7) between its corresponding through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200929230U CN202503074U (en) | 2012-03-14 | 2012-03-14 | High-capacity lithium iron phosphate power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200929230U CN202503074U (en) | 2012-03-14 | 2012-03-14 | High-capacity lithium iron phosphate power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202503074U true CN202503074U (en) | 2012-10-24 |
Family
ID=47039680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200929230U Expired - Fee Related CN202503074U (en) | 2012-03-14 | 2012-03-14 | High-capacity lithium iron phosphate power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202503074U (en) |
-
2012
- 2012-03-14 CN CN2012200929230U patent/CN202503074U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20140314 |