CN100533840C - Lithium ion power cell - Google Patents
Lithium ion power cell Download PDFInfo
- Publication number
- CN100533840C CN100533840C CNB2007100697754A CN200710069775A CN100533840C CN 100533840 C CN100533840 C CN 100533840C CN B2007100697754 A CNB2007100697754 A CN B2007100697754A CN 200710069775 A CN200710069775 A CN 200710069775A CN 100533840 C CN100533840 C CN 100533840C
- Authority
- CN
- China
- Prior art keywords
- lithium
- ion
- pole
- power cell
- solvent
- Prior art date
- 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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Classifications
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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
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to a lithium ion power battery, where the battery pole plates adopt a stacked structure, a diaphragm is arranged between anode and cathode, the anode plate is packaged with bag-like diaphragm and stacked then; the anode adopts water-system formula in pbw of: lithium cobaltate 720-800, lithium permanganate 175-240, conducting agent 12-35 and solvent 420-650; and the cathode is made in pbw of: CMC mother solution 600-850, carbon powder 780-1100, deionized water 300- 420, and epoxy resin gluewater 30-50, where the conducting agent is any or combination of conducting carbon black and conducting graphite, and the solvent is water; and it has features of reasonable structure, lightweight, good safety , high capacity, low internal resistance, etc.
Description
Technical field
The present invention relates to a kind of lithium battery, especially relate to a kind of lithium-ion-power cell.
Background technology
The battery that present domestic electric bicycle uses mostly is lead-acid battery.Lead-acid battery is seriously polluted, in process of production and scrap in the reprocessing environment and people healthy had very big harm, in addition, lead-acid battery also have useful life short, deposit weakness such as electric weight is low.Because the critical material technology of lithium ion battery and battery technology progress had greatly promoted the development of vehicle technology and industry rapidly in recent years, the research of lithium-ion-power cell becomes the main flow research direction gradually.It is little, in light weight and energy utilization rate is high, can fully utilize the characteristics of various different energy sources that lithium-ion-power cell has a volume; for energy-conservation and environmental protection crucial meaning is arranged; but lithium-ion-power cell mainly is to have safety issue at present; and the extensive use of failing; therefore, the fail safe of raising lithium-ion-power cell is a matter of utmost importance.
Summary of the invention
The present invention solves the unsettled technical problem of existing in prior technology security performance.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: lithium ion power cell pole flakes is taked laminated structure, be provided with barrier film between positive pole, the negative pole, promptly between positive pole, negative pole, be provided with barrier film, positive plate is packed with bag shape barrier film, then positive/negative plate is gathered into folds; Described positive pole, negative pole adopt the water system prescription, and in parts by weight, its anodal proportioning is: cobalt acid lithium 720～800, LiMn2O4 175～240, conductive agent 12～35, solvent 420～650; Its negative pole proportioning is: CMC mother liquor 600～850, carbon dust 780～1100, deionized water 300～420, epoxy resin glue 30～50; Described conductive agent is any one or combination of conductive carbon black, electrically conductive graphite, and described solvent is a water.
Pole piece is taked laminated structure among the present invention, and more lug can be provided, and to reduce internal resistance, avoids pole piece to fall situations such as material because of folding generation in addition.And the battery capacity of laminated structure is big, and volume is little, can bear-55～+ 150 ℃ temperature range, and is also fine for the tolerance of pressure, temperature and impact, can ensure the fail safe of electrokinetic cell.
In addition, because the particularity of lithium-ion-power cell high power capacity, determined battery must possess safety device, simultaneously consider that again load-carrying and easy to use, the effect of adhesive film type explosion-proof valve are deformation of thin membrane when inside battery reaches certain pressure, thimble punctures film, discharge internal gas, blast to prevent battery, thus the fail safe that improves electrokinetic cell.
Because it is high-power that electrokinetic cell requires to export, so battery must can pass through big electric current, and what influence size of current mainly is the internal resistance of the ampacity and the battery of electric conductor.Both positive and negative polarity of the present invention adopts independently copper-base post and aluminium pole, lug is designed to directly utilize the matrix of pole piece, and lug and pole riveted joint mode, is fixed together after making material bonding, effectively reduces internal resistance, improves electric conductivity.
Therefore, the present invention has rational in infrastructure, and is in light weight, and security performance is good, the capacity height, and internal resistance is little, but heavy-current discharge, for equipment provides higher characteristics such as power.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment: lithium ion power cell pole flakes is taked laminated structure, after the positive and negative plate film cuts, packs positive plate with bag shape barrier film, then packaged positive plate and unpacked negative plate is gathered into folds; Described positive pole, negative pole adopt the water system prescription, and in parts by weight, its anodal proportioning is: cobalt acid lithium 720, LiMn2O4 240, conductive agent 23, solvent 420; Its negative pole proportioning is: CMC mother liquor 850, carbon dust 780, deionized water 340, epoxy resin glue 40; Described is conductive agent with the carbon black, and described solvent is a water.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to the foregoing description, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (4)
1. lithium-ion-power cell is characterized in that described lithium ion power cell pole flakes takes laminated structure, promptly is provided with barrier film between anodal, negative pole, and described barrier film be a bag shape coating film; Described positive pole, negative pole adopt the water system prescription, and in parts by weight, its anodal proportioning is: cobalt acid lithium 720～800, LiMn2O4 175～240, conductive agent 12～35, solvent 420～650; Its negative pole proportioning is: CMC mother liquor 600～850, carbon dust 780～1100, deionized water 300～420, epoxy resin glue 30～50; Described conductive agent is any one or combination of conductive carbon black, electrically conductive graphite, and described solvent is a water.
2. according to claim 1 described a kind of lithium-ion-power cell, it is characterized in that described lithium ion power battery explosion protection valve is the adhesive film type explosion-proof valve.
3. a kind of lithium-ion-power cell according to claim 1 and 2 is characterized in that described lithium ion power battery cathode post is that independently copper-base post, negative terminal are aluminium poles independently; Matrix with pole piece is a lug, and lug and pole are riveted together.
4. according to claim 1 or 2 described a kind of lithium-ion-power cells, it is characterized in that described barrier film is to be composited by the PP-PE-PP three-layer-material, membrane thicknesses is between 25 μ m～40 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100697754A CN100533840C (en) | 2007-07-03 | 2007-07-03 | Lithium ion power cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100697754A CN100533840C (en) | 2007-07-03 | 2007-07-03 | Lithium ion power cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101083340A CN101083340A (en) | 2007-12-05 |
| CN100533840C true CN100533840C (en) | 2009-08-26 |
Family
ID=38912711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100697754A Expired - Fee Related CN100533840C (en) | 2007-07-03 | 2007-07-03 | Lithium ion power cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100533840C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944634A (en) * | 2010-09-10 | 2011-01-12 | 东莞新能源科技有限公司 | Lithium ion battery |
| CN103219488A (en) * | 2013-03-27 | 2013-07-24 | 武汉中原长江科技发展有限公司 | Lithium-ion power battery |
| CN106025186A (en) * | 2016-07-28 | 2016-10-12 | 广西卓能新能源科技有限公司 | Lithium-ion battery and preparation method thereof |
-
2007
- 2007-07-03 CN CNB2007100697754A patent/CN100533840C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101083340A (en) | 2007-12-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090826 Termination date: 20130703 |