CN204067479U - A kind of high magnification aqueous phosphate lithium iron battery - Google Patents
A kind of high magnification aqueous phosphate lithium iron battery Download PDFInfo
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- CN204067479U CN204067479U CN201420469840.8U CN201420469840U CN204067479U CN 204067479 U CN204067479 U CN 204067479U CN 201420469840 U CN201420469840 U CN 201420469840U CN 204067479 U CN204067479 U CN 204067479U
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- output end
- proof casing
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- insulation flame
- positive plate
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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 kind of high magnification aqueous phosphate lithium iron battery, comprise insulation flame-proof casing, battery core is provided with in insulation flame-proof casing, battery core comprises positive plate, negative plate, positive plate, negative plate overlap together formation after being all coated with barrier film outward, electrolyte is filled with between battery core and insulation flame-proof casing, insulation flame-proof casing upper end cover left and right sides respectively closed set has the cathode output end stretched in insulation flame-proof casing, cathode output end, and cathode output end, cathode output end are connected fixing with negative plate, positive plate respectively; Be provided with the mounting groove stretched in housing in the middle part of insulation flame-proof casing upper end cover, in mounting groove, be sealed and installed with single exhaust valve, with UNICOM in insulation flame-proof casing bottom mounting groove.The utility model novel in structural design, adds the security performance of battery, effectively can improve electrode conductivity, reduces the internal resistance of cell, very high battery high rate performance and cycle life.
Description
technical field:
The utility model relates to cell art, particularly relates to a kind of high magnification aqueous phosphate lithium iron battery.
background technology:
Along with the prosperity of industry, the quick growth of energy-output ratio, pollute also more and more serious, PM2.5 becomes hot issue, the wordings such as increasing people start to pay close attention to pollutants in air healthhazard, " new-energy automobile " " green traffic " become focus, LiFePO4 have nontoxic, pollution-free, security performance is good, raw material sources is extensive, low price, the advantages such as the life-span is long, become the desirable positive electrode of lithium ion battery of new generation.
Demand is all high power capacity, high magnification, long-life new energy resources system in the market, due to the poorly conductive of LiFePO4 own, when lithium ion spreads and causes battery high power charging-discharging slowly, the shortcomings such as platform voltage is low, cycle life decay is fast, ferric phosphate lithium cell is all make solvent with NMP in the market, this toxic solvent and expensive, environmental protection green to ferric phosphate lithium cell brings shade and increases cost.
utility model content:
The purpose of this utility model is to provide a kind of high magnification aqueous phosphate lithium iron battery, efficiently solves that traditional ferric phosphate lithium cell discharge-rate is low, the high rate cyclic life-span is short and organic substance residues causes the problems such as potential safety hazard.
The technical solution of the utility model is as follows:
High magnification aqueous phosphate lithium iron battery, it is characterized in that: comprise insulation flame-proof casing, battery core is provided with in insulation flame-proof casing, battery core comprises positive plate, negative plate, positive plate, negative plate overlap together formation after being all coated with barrier film outward, electrolyte is filled with between battery core and insulation flame-proof casing, insulation flame-proof casing upper end cover left and right sides respectively closed set has the cathode output end stretched in insulation flame-proof casing, cathode output end, and cathode output end, cathode output end are connected fixing with negative plate, positive plate respectively; Be provided with the mounting groove stretched in housing in the middle part of insulation flame-proof casing upper end cover, in mounting groove, be sealed and installed with single exhaust valve, with UNICOM in insulation flame-proof casing bottom mounting groove.
Described high magnification aqueous phosphate lithium iron battery, it is characterized in that: described positive plate, negative plate are connected with cathode output end, cathode output end respectively, connected mode is first weld then to utilize the preformed hole of correspondence position in the middle of positive plate and cathode output end, negative plate and cathode output end to intert screw rod to be connected and fixed.
Described high magnification aqueous phosphate lithium iron battery, is characterized in that: described cathode output end and the direct sulfuration of the epimere of cathode output end or extrusion moulding are in insulation flame-proof casing.
Described high magnification aqueous phosphate lithium iron battery, is characterized in that: the active material of described positive plate is LiFePO4, two-sided dressing density≤2.5g/100cm
2, conductive agent is few layer graphene, and content controls 0.5% ~ 3%, and dispersion solvent is deionized water.
Described high magnification aqueous phosphate lithium iron battery, is characterized in that: the active material of described negative plate is Delanium, and conductive agent is few layer graphene, and content controls 0.5% ~ 2%, and dispersion solvent is deionized water.
Compared with prior art, there is following beneficial effect:
1, to be connected with output relative to traditional pole piece and to fix with employing bolt, this connected mode has first fixedly been evaded independent bolt with bolt again with ultrasonic bonding and has fixedly been existed in discharge and recharge and vibration processes and easily move back a phenomenon and reduce ultrasonic bonding and occur the incomplete risk of welding;
2, the utility model adopts insulation flame-proof casing, increases battery security;
3, positive pole of the present utility model and cathode output end are directly fused to insulation flame-proof casing, and very high battery specific energy is evaded conventional bolt and fixedly existed in discharge and recharge and vibration processes and easily move back a phenomenon;
4, add few layer graphene in positive plate of the present utility model and negative plate, utilize Graphene advantage, improve electrode conductivity, reduce the internal resistance of cell, very high battery high rate performance and cycle life.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model battery core.
Fig. 3 is the syndeton schematic diagram of the utility model cathode output end.
embodiment:
See accompanying drawing:
High magnification aqueous phosphate lithium iron battery, comprise insulation flame-proof casing 1, battery core is provided with in insulation flame-proof casing 1, battery core comprises positive plate 2, negative plate 3, formation is overlapped together after being all coated with barrier film 4 outside positive plate 2, negative plate 3, electrolyte 5 is filled with between battery core and insulation flame-proof casing 1, insulation flame-proof casing 1 upper end cover left and right sides respectively closed set has the cathode output end 6 stretched in insulation flame-proof casing, cathode output end 7, and cathode output end 6, cathode output end 7 are connected fixing with negative plate 2, positive plate 3 respectively; Be provided with the mounting groove 8 stretched in housing in the middle part of insulation flame-proof casing 1 upper end cover, in mounting groove 8, be sealed and installed with single exhaust valve 9, with UNICOM in insulation flame-proof casing 1 bottom mounting groove 8.
Positive plate 2, negative plate 3 are connected with cathode output end 7, cathode output end 6 respectively, connected mode be first weld that (at pad 10 place) then utilizes positive plate 2 and cathode output end 7, negative plate 3 and the preformed hole 11 of the middle correspondence position of cathode output end 6 intert screw rod 12 and be connected and fixed.
The direct sulfuration of epimere of cathode output end 7 and cathode output end 6 or extrusion moulding are in insulation flame-proof casing 1.
The active material of positive plate 2 is LiFePO4, two-sided dressing density≤2.5g/100cm
2, conductive agent is few layer graphene, and content controls 0.5% ~ 3%, and dispersion solvent is deionized water.
The active material of negative plate 3 is Delanium, and conductive agent is few layer graphene, and content controls 0.5% ~ 2%, and dispersion solvent is deionized water.
Claims (5)
1. a high magnification aqueous phosphate lithium iron battery, it is characterized in that: comprise insulation flame-proof casing, battery core is provided with in insulation flame-proof casing, battery core comprises positive plate, negative plate, positive plate, negative plate overlap together formation after being all coated with barrier film outward, electrolyte is filled with between battery core and insulation flame-proof casing, insulation flame-proof casing upper end cover left and right sides respectively closed set has the cathode output end stretched in insulation flame-proof casing, cathode output end, and cathode output end, cathode output end are connected fixing with negative plate, positive plate respectively; Be provided with the mounting groove stretched in housing in the middle part of insulation flame-proof casing upper end cover, in mounting groove, be sealed and installed with single exhaust valve, with UNICOM in insulation flame-proof casing bottom mounting groove.
2. high magnification aqueous phosphate lithium iron battery according to claim 1, it is characterized in that: described positive plate, negative plate are connected with cathode output end, cathode output end respectively, connected mode is first weld then to utilize the preformed hole of correspondence position in the middle of positive plate and cathode output end, negative plate and cathode output end to intert screw rod to be connected and fixed.
3. high magnification aqueous phosphate lithium iron battery according to claim 1, is characterized in that: described cathode output end and the direct sulfuration of the epimere of cathode output end or extrusion moulding are in insulation flame-proof casing.
4. high magnification aqueous phosphate lithium iron battery according to claim 1, is characterized in that: the active material of described positive plate is LiFePO4, two-sided dressing density≤2.5g/100cm
2, conductive agent is few layer graphene, and content controls 0.5% ~ 3%, and dispersion solvent is deionized water.
5. high magnification aqueous phosphate lithium iron battery according to claim 1, is characterized in that: the active material of described negative plate is Delanium, and conductive agent is few layer graphene, and content controls 0.5% ~ 2%, and dispersion solvent is deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469840.8U CN204067479U (en) | 2014-08-19 | 2014-08-19 | A kind of high magnification aqueous phosphate lithium iron battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469840.8U CN204067479U (en) | 2014-08-19 | 2014-08-19 | A kind of high magnification aqueous phosphate lithium iron battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204067479U true CN204067479U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201420469840.8U Active CN204067479U (en) | 2014-08-19 | 2014-08-19 | A kind of high magnification aqueous phosphate lithium iron battery |
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| Country | Link |
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| CN (1) | CN204067479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921098A (en) * | 2018-11-20 | 2019-06-21 | 万向一二三股份公司 | A kind of preparation method of aqueous super nano ferric phosphate lithium battery |
-
2014
- 2014-08-19 CN CN201420469840.8U patent/CN204067479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921098A (en) * | 2018-11-20 | 2019-06-21 | 万向一二三股份公司 | A kind of preparation method of aqueous super nano ferric phosphate lithium battery |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |