CN102856531A - Negative electrode of lithium ion battery, and lithium ion battery - Google Patents
Negative electrode of lithium ion battery, and lithium ion battery Download PDFInfo
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- CN102856531A CN102856531A CN2012103832725A CN201210383272A CN102856531A CN 102856531 A CN102856531 A CN 102856531A CN 2012103832725 A CN2012103832725 A CN 2012103832725A CN 201210383272 A CN201210383272 A CN 201210383272A CN 102856531 A CN102856531 A CN 102856531A
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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
Abstract
The invention relates to the technical field of lithium batteries, and in particular to a negative electrode of lithium ion battery, and a lithium ion battery. The copper foil or the aluminum foil is used as the substrate, the substrate is coated by slurry and prepared into the negative electrode end product of the lithium ion battery, and the slurry is a novel high-performance negative electrode aqueous formula comprising effective solid components and liquid components; the formula comprises the following effective solid components by weight percent: 47.04%-56.26% of negative electrode active substance, 0.98%-1.74% of polyacrylonitrile type aqueous conductive adhesive and 0.24%-0.86% of conductive agent, wherein the negative electrode active substance is graphite; and the liquid components comprise 36.36%-51.01% of deionized water, 0.01%-2.81% of N-methyl pyrrolidinone and 0.01%-2.81% of defoamer. According to the negative electrode of lithium ion battery and the lithium ion battery provided by the invention, the energy density, the rate capability and the cycle performance of the lithium ion battery can be improved obviously, and the time for preparing materials also can be reduced.
Description
Technical field
The present invention relates to technical field of lithium ion, is a kind of negative pole and lithium ion battery of lithium ion battery specifically.
Background technology
Use along with the mobile internet devices such as mobile phone, notebook computer (MID), the popularization of the electric vehicle such as electric bicycle, battery-operated motor cycle (Electric Vehicles), and the development of the aeronautical and space technologies such as unmanned plane, space probe, the lithium ion battery that is widely used has in these areas at present been proposed more and more higher performance requirement.The breakthrough of negative pole performance is to improve one of effective ways of lithium ion battery combination property, and cathode formula has determined the negative pole performance, and this is so that high performance cathode formula becomes the focus of research.
" 2012-2015 China's lithium battery industry production and marketing demand and the investment forecasting analysis report " of the issue of prediction industrial research institute shows, global lithium ion battery market scale had reached 15,300,000,000 dollars in 2011.In addition, " lithium ion battery market is developed very fast according to the IHS iSuppli rechargeable battery specialist paper of researching and analysing IHS company of mechanism, reach 54,000,000,000 dollars to the year two thousand twenty ", the market scale of lithium ion battery will further enlarge fast, this output that is just indicating lithium ion battery need to have larger breakthrough, how to improve the ability of making fast of lithium ion battery and also will be put on the research schedule.
The negative pole technique of existing lithium ion battery is complicated, and the batching time is long, and further improved necessity is arranged.
Summary of the invention
For the defective that exists in the prior art, the object of the present invention is to provide a kind of negative pole and lithium ion battery of lithium ion battery, negative pole production, the preparation technology of lithium ion battery have been improved, energy density, high rate performance and the cycle performance of lithium ion battery can be obviously improved, the batching time can be shortened simultaneously.
For reaching above purpose, the technical scheme that the present invention takes is:
The negative pole of lithium ion battery of the present invention and lithium ion battery can obviously improve energy density, high rate performance and the cycle performance of lithium ion battery, can shorten the batching time simultaneously.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 is the typical multiplying power discharging curve of the lithium ion battery of implementation column 1.
Fig. 2 is the typical multiplying power discharging curve of the lithium ion battery of implementation column 2.
Fig. 3 is the typical multiplying power discharging curve of the lithium ion battery of implementation column 3.
Fig. 4 is the circulation volume retention curve of the lithium ion battery of implementation column 1-3.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
The negative pole of lithium ion battery of the present invention take Copper Foil or aluminium foil as matrix, applies slurry at matrix, and preparation becomes the negative pole finished product of lithium ion battery, described slurry adopts novel high-performance negative pole water system prescription, comprising: effective solid constituent and liquid component
Described effective solid constituent comprises by weight percentage:
Negative electrode active material 47.04%～56.26%, described negative electrode active material are graphite,
Polyacrylonitrile type water system electroconductive binder 0.98%～1.74%,
Conductive agent 0.24%～0.86%, described conductive agent are electrically conductive graphite,
Described liquid component comprises by weight percentage:
Deionized water 36.36%～51.01%,
1-METHYLPYRROLIDONE 0.01%～2.81%,
Defoamer 0.01%～2.81%,
When the slurry that adopts above-mentioned recipe configuration is coated in when being made into the negative pole of lithium ion battery on Copper Foil or the aluminium foil matrix, each effective solid constituent is by weight percentage in the negative pole coating of coating:
Negative electrode active material 96.0%～97.0%, polyacrylonitrile type water system electroconductive binder 2.0%～3.0%, conductive agent 0.5%～1.5%.
On the basis of technique scheme, described defoamer is one of any in ethanol, isopropyl alcohol and the acetone.Wherein: the concentration of ethanol 〉=40%, the concentration of isopropyl alcohol 〉=40%, the concentration of acetone 〉=40%.
Lithium ion battery of the present invention comprises positive pole, barrier film, electrolyte and above-mentioned is coated with the negative pole that slurry forms the negative pole coating at matrix,
The described lithium transition-metal oxide that just very can embed lithium ion,
Described barrier film is PP/PE/PP(polypropylene, polyethylene/polypropylene) three layers of barrier film or the double-deck barrier film of PP/PE or PP, PE single-layer septum,
Described electrolyte is non-aqueous electrolyte.
The structure of positive pole, barrier film, electrolyte and negative pole is identical with existing lithium ion battery structure, is known technology, and the present invention does not carry out any improvement to battery structure, therefore no longer describe in detail.
Be coated in the slurry on the matrix among the present invention, adopt novel high-performance negative pole water system prescription, it realizes that high performance cardinal principle is:
Negative electrode active material itself is good electronic conductor, and the raising of negative electrode active material content is conducive to increase the electron conduction of cathode membrane;
Polyacrylonitrile type water system electroconductive binder is different from traditional adhesive, conventional adhesive is the insulator of electron conduction and ionic conduction, and polyacrylonitrile type water system electroconductive binder its polyacrylonitrile (PAN) segment when possessing high adhesion has both ionic conductivity, is conducive to lithium ion and deviates from the embedding of negative pole.Therefore, lithium ion battery polarization of the present invention is little, internal resistance is low, has both excellent high rate performance and service life cycle when having high-energy-density.
The novel high-performance negative pole water system prescription that adopts among the present invention, compare traditional CMC/SBR(sodium carboxymethylcellulose/butadiene-styrene rubber) aqueous binder system and PVDF(Kynoar) oil is adhesive, polyacrylonitrile type water system electroconductive binder is emulsion, has avoided solid-state CMC and PVDF dry powder to beat the glue step at burden process; Simultaneously, polyacrylonitrile type water system electroconductive binder strand is crosslinked, and firmly (polyacrylonitrile type water system electroconductive binder main chain Duan Yiduan has hydrophily, the other end has hydrophobicity, latex particle presents " octopus " shape structure in water, so that particle Contact barrier potential is higher, resistance to wear is strong, use not breakdown of emulsion, and the molecule interchain linkage is firm), be applicable to the high-speed stirred of large shearing force, thereby also avoided CMC, SBR and PVDF can not the long period high-speed stirred weakness, be conducive to the rapid dispersion slurry, the batching time can obviously be shortened, largely the upper ability of making fast that improves lithium ion battery.
The negative pole of lithium ion battery of the present invention, the preparation process of cathode size is:
(1) add deionized water and polyacrylonitrile type water system electroconductive binder (in no particular order) in the mixer, do not vacuumize or vacuumize (vacuum degree≤-70KPa) stir 5-60min(revolution 20-60HZ, rotation 0-40HZ);
(2) add conductive agent, do not vacuumize and stir and vacuumize again behind the 5-10min (vacuum degree≤-70KPa) stir 30min-90min(revolution 20-60HZ, rotation 10-40HZ);
(3) add negative electrode active material, do not vacuumize and stir and vacuumize again behind the 5-10min (vacuum degree≤-70KPa) stir 120min-240min(revolution 20-60HZ, rotation 10-40HZ);
(4) add defoamer and 1-METHYLPYRROLIDONE, do not vacuumize or vacuumize (vacuum degree≤-70KPa) stir 5-60min(revolution 10-60HZ, rotation 0-40HZ).
The preparation process of the negative pole of lithium ion battery is:
(1) after slurry is crossed the 100-150 eye mesh screen, be coated on the matrix and dry coat film with coating machine and obtain coated diaphragm, coated side density is 8.77 ± 0.35mg/cm
2
(2) coated diaphragm twin rollers roll extrusion, roll-in rear film THICKNESS CONTROL are 115 ± 5 μ m;
(3) diaphragm that roll-in is good cuts the small pieces that itemize is 459mm*43mm with slitter and banding machine;
(4) reveal nickel strap in the welding of paper tinsel district with super welding machine at the small pieces head, described nickel strap is of a size of: the wide * of the long * of 40.5mm*3.0mm*0.1mm(is thick);
(5) weld sticks the protection gummed paper, obtains the negative pole finished product of lithium ion battery.
Below be some embodiment and embodiment 1,2,3 and the correction data of traditional cathode formula.
Embodiment 1: negative pole water system prescription comprises following effective solid constituent, and each effective solid constituent percentage by weight is: negative electrode active material 51.83%, polyacrylonitrile type water system electroconductive binder 1.62%, conductive agent 0.54%.In addition, this novel high-performance negative pole water system prescription also comprises following liquid component, and each liquid component percentage by weight is: deionized water 45.99%, 1-METHYLPYRROLIDONE 0.01%, ethanol (defoamer) 0.01%.
According to cathode size collocation method of the present invention:
(1) in mixer, adds deionized water and polyacrylonitrile type water system electroconductive binder (in no particular order), do not vacuumize and stir 5min (revolution 20HZ, rotation 10HZ);
(2) add electrically conductive graphite, do not vacuumize and stir and vacuumize again behind the 5min that (vacuum degree-60KPa) stirs 30min (revolution 20HZ, rotation 10HZ);
(3) add negative electrode active material, do not vacuumize and stir and vacuumize again behind the 5min that (vacuum degree-60KPa) stirs 120min (revolution 20HZ, rotation 10HZ);
(4) add defoamer and 1-METHYLPYRROLIDONE, vacuumize that (vacuum degree-60KPa) stirs 5min (revolution 20HZ, rotation 10HZ)
Negative pole preparation method according to lithium ion battery of the present invention:
(1) after slurry is crossed 100 eye mesh screens, be coated on the matrix and dry coat film with coating machine and obtain coated diaphragm, coated side density is 8.77 ± 0.35mg/cm
2Each effective solid constituent of negative pole coat film after the oven dry and percentage by weight are: negative electrode active material 96.0%, polyacrylonitrile type water system electroconductive binder 3.0%, conductive agent 1.0%;
(2) coated diaphragm twin rollers roll extrusion, roll-in rear film THICKNESS CONTROL are 115 ± 5 μ m;
(3) diaphragm that roll-in is good cuts the small pieces that itemize is 459mm*43mm with slitter and banding machine;
(4) reveal nickel strap in the welding of paper tinsel district with super welding machine at the small pieces head, described nickel strap is of a size of: the wide * of the long * of 40.5mm*3.0mm*0.1mm(is thick);
(5) weld sticks the protection gummed paper, obtains the negative pole finished product.
The present embodiment adopts above-mentioned negative pole, makes technique according to the liquid flexible packing lithium ion electric pond of routine and is made into 503450 types (overall dimensions 5.0mm*34mm*50mm) lithium ion battery.
Embodiment 2: negative pole water system prescription comprises following effective solid constituent, and each effective solid constituent percentage by weight is: negative electrode active material 50.18%, polyacrylonitrile type water system electroconductive binder 1.30%, conductive agent 0.53%.In addition, this novel high-performance negative pole water system prescription also comprises following liquid component, and each liquid component percentage by weight is: deionized water 45.74%, 1-METHYLPYRROLIDONE 1.51%, isopropyl alcohol (defoamer) 0.74%(concentration 〉=40%).
According to cathode size collocation method of the present invention:
(1) adds deionized water and polyacrylonitrile type water system electroconductive binder (in no particular order) in the mixer, vacuumize that (vacuum degree-50KPa) stirs 20min (revolution 30HZ, rotation 20HZ);
(2) add electrically conductive graphite, do not vacuumize and stir and vacuumize again behind the 8min that (vacuum degree-50KPa) stirs 60min (revolution 30HZ, rotation 20HZ);
(3) add negative electrode active material, do not vacuumize and stir and vacuumize again behind the 8min that (vacuum degree-50KPa) stirs 180min (revolution 30HZ, rotation 20HZ);
(4) add defoamer and 1-METHYLPYRROLIDONE, do not vacuumize and stir 30min (revolution 30HZ, rotation 20HZ)
According to negative pole preparation method of the present invention:
(1) after slurry is crossed 150 eye mesh screens, be coated on the matrix and dry coat film with coating machine and obtain coated diaphragm, coated side density is 8.77 ± 0.35mg/cm
2Each effective solid constituent of negative pole coat film after the oven dry and percentage by weight are: negative electrode active material 96.5%, polyacrylonitrile type water system electroconductive binder 2.5%, conductive agent 1.0%;
(2) coated diaphragm twin rollers roll extrusion, roll-in rear film THICKNESS CONTROL are 115 ± 5 μ m;
(3) diaphragm that roll-in is good cuts the small pieces that itemize is 459mm*43mm with slitter and banding machine;
(4) reveal nickel strap in the welding of paper tinsel district with super welding machine at the small pieces head, described nickel strap is of a size of: the wide * of the long * of 40.5mm*3.0mm*0.1mm(is thick);
(5) weld sticks the protection gummed paper, obtains the negative pole finished product.
The present embodiment adopts above-mentioned negative pole, makes technique according to the liquid flexible packing lithium ion electric pond of routine and is made into 503450 types (overall dimensions 5.0mm*34mm*50mm) lithium ion battery.
Embodiment 3: negative pole water system prescription comprises following effective solid constituent, and each effective solid constituent percentage by weight is: negative electrode active material 52.38%, polyacrylonitrile type water system electroconductive binder 1.35%, conductive agent 0.26%.In addition, this novel high-performance negative pole water system prescription also comprises following liquid component, and each liquid component percentage by weight is: deionized water 42.72%, 1-METHYLPYRROLIDONE 2.5%, acetone (defoamer) 0.79%(concentration 〉=40%).
According to cathode size collocation method of the present invention:
(1) in mixer, adds deionized water and polyacrylonitrile type water system electroconductive binder (in no particular order), do not vacuumize and stir 60min (revolution 60HZ, rotation 40HZ);
(2) add electrically conductive graphite, do not vacuumize and stir and vacuumize again behind the 10min that (vacuum degree-60KPa) stirs 90min (revolution 60HZ, rotation 40HZ);
(3) add negative electrode active material, do not vacuumize and stir and vacuumize again behind the 10min that (vacuum degree-50KPa) stirs 240min (revolution 60HZ, rotation 40HZ);
(4) add defoamer and 1-METHYLPYRROLIDONE, vacuumize that (vacuum degree-50KPa) stirs 60min (revolution 60HZ, rotation 40HZ)
According to negative pole preparation method of the present invention:
(1) after slurry is crossed 120 eye mesh screens, be coated on the matrix and dry coat film with coating machine and obtain coated diaphragm, coated side density is 8.77 ± 0.35mg/cm
2Each effective solid constituent of negative pole coat film after the oven dry and percentage by weight are: negative electrode active material 97.0%, polyacrylonitrile type water system electroconductive binder 2.0%, conductive agent 1.0%;
(2) coated diaphragm twin rollers roll extrusion, roll-in rear film THICKNESS CONTROL are 115 ± 5 μ m;
(3) diaphragm that roll-in is good cuts the small pieces that itemize is 459mm*43mm with slitter and banding machine;
(4) reveal nickel strap in the welding of paper tinsel district with super welding machine at the small pieces head, described nickel strap is of a size of: the wide * of the long * of 40.5mm*3.0mm*0.1mm(is thick);
(5) weld sticks the protection gummed paper, obtains the negative pole finished product.
The present embodiment adopts above-mentioned negative pole, makes technique according to the liquid flexible packing lithium ion electric pond of routine and is made into 503450 types (overall dimensions 5.0mm*34mm*50mm) lithium ion battery.
Table 1: the different condition Example formulations is compared the impact of traditional cathode formula on the batching time
Table 2: different condition embodiment is on the impact of battery performance
Table 3: prescription of the present invention and conventional formulation performance comparison (503450 type liquid flexible packing battery)
Embodiment 4: negative pole water system prescription comprises following effective solid constituent, and each effective solid constituent percentage by weight is: negative electrode active material 47.04%, polyacrylonitrile type water system electroconductive binder 1.7%, conductive agent 0.86%.In addition, this novel high-performance negative pole water system prescription also comprises following liquid component, and each liquid component percentage by weight is: deionized water 48.69%, 1-METHYLPYRROLIDONE 0.01%, ethanol (defoamer) 1.7%.
Embodiment 5: negative pole water system prescription comprises following effective solid constituent, and each effective solid constituent percentage by weight is: negative electrode active material 56.26%, polyacrylonitrile type water system electroconductive binder 0.98%, conductive agent 0.3%.In addition, this novel high-performance negative pole water system prescription also comprises following liquid component, and each liquid component percentage by weight is: deionized water 36.84%, 1-METHYLPYRROLIDONE 2.81%, isopropyl alcohol (defoamer) 2.81%(concentration 〉=40%).
Embodiment 6: negative pole water system prescription comprises following effective solid constituent, and each effective solid constituent percentage by weight is: negative electrode active material 48.3%, polyacrylonitrile type water system electroconductive binder 1%, conductive agent 0.7%.In addition, this novel high-performance negative pole water system prescription also comprises following liquid component, and each liquid component percentage by weight is: deionized water 48%, 1-METHYLPYRROLIDONE 1%, acetone (defoamer) 1%(concentration 〉=40%).
Embodiment 7: negative pole water system prescription comprises following effective solid constituent, and each effective solid constituent percentage by weight is: negative electrode active material 47.04%, polyacrylonitrile type water system electroconductive binder 0.98%, conductive agent 0.24%.In addition, this novel high-performance negative pole water system prescription also comprises following liquid component, and each liquid component percentage by weight is: deionized water 51%, 1-METHYLPYRROLIDONE 0.42%, acetone (defoamer) 0.32%(concentration 〉=40%).
The content that is not described in detail in this specification belongs to the known prior art of this area professional and technical personnel.
Claims (8)
1. the negative pole of a lithium ion battery is characterized in that: take Copper Foil or aluminium foil as matrix, apply slurry at matrix, and preparation becomes the negative pole finished product of lithium ion battery, described slurry adopts novel high-performance negative pole water system prescription, comprising: effective solid constituent and liquid component
Described effective solid constituent comprises by weight percentage:
Negative electrode active material 47.04%～56.26%, described negative electrode active material are graphite,
Polyacrylonitrile type water system electroconductive binder 0.98%～1.74%,
Conductive agent 0.24%～0.86%,
Described liquid component comprises by weight percentage:
Deionized water 36.36%～51.01%,
1-METHYLPYRROLIDONE 0.01%～2.81%,
Defoamer 0.01%～2.81%.
2. the negative pole of lithium ion battery as claimed in claim 1, it is characterized in that: when the slurry that adopts above-mentioned recipe configuration is coated in when being made into the negative pole of lithium ion battery on Copper Foil or the aluminium foil matrix, each effective solid constituent is by weight percentage in the negative pole coating of coating:
Negative electrode active material 96.0%～97.0%, polyacrylonitrile type water system electroconductive binder 2.0%～3.0%, conductive agent 0.5%～1.5%.
3. the negative pole of lithium ion battery as claimed in claim 1 is characterized in that: described defoamer is one of any in ethanol, isopropyl alcohol and the acetone.
4. the negative pole of lithium ion battery as claimed in claim 3 is characterized in that: the concentration of ethanol 〉=40%, the concentration of isopropyl alcohol 〉=40%, the concentration of acetone 〉=40%.
5. lithium ion battery, it is characterized in that: its negative pole is the negative pole of claim 1 or 2 or 3 or 4 described lithium ion batteries.
6. lithium ion battery as claimed in claim 5 is characterized in that: also comprise positive pole, barrier film and the electrolyte of lithium ion battery,
The described lithium transition-metal oxide that just very can embed lithium ion,
Described barrier film is the double-deck barrier film of three layers of barrier film of PP/PE/PP or PP/PE or PP, PE single-layer septum,
Described electrolyte is non-aqueous electrolyte.
7. lithium ion battery as claimed in claim 5 is characterized in that, the preparation process of cathode size is:
(1) add deionized water and polyacrylonitrile type water system electroconductive binder (in no particular order) in the mixer, do not vacuumize or vacuumize (vacuum degree≤-70KPa) stir 5-60min(revolution 20-60HZ, rotation 0-40HZ);
(2) add conductive agent, do not vacuumize and stir and vacuumize again behind the 5-10min (vacuum degree≤-70KPa) stir 30min-90min(revolution 20-60HZ, rotation 10-40HZ);
(3) add negative electrode active material, do not vacuumize and stir and vacuumize again behind the 5-10min (vacuum degree≤-70KPa) stir 120min-240min(revolution 20-60HZ, rotation 10-40HZ);
(4) add defoamer and 1-METHYLPYRROLIDONE, do not vacuumize or vacuumize (vacuum degree≤-70KPa) stir 5-60min(revolution 10-60HZ, rotation 0-40HZ).
8. lithium ion battery as claimed in claim 7 is characterized in that, the preparation process of negative pole is:
(1) after slurry is crossed the 100-150 eye mesh screen, be coated on the matrix and dry coat film with coating machine and obtain coated diaphragm, coated side density is 8.77 ± 0.35mg/cm
2
(2) coated diaphragm twin rollers roll extrusion, roll-in rear film THICKNESS CONTROL are 115 ± 5 μ m;
(3) diaphragm that roll-in is good cuts the small pieces that itemize is 459mm*43mm with slitter and banding machine;
(4) reveal nickel strap in the welding of paper tinsel district with super welding machine at the small pieces head, described nickel strap is of a size of: 40.5mm*3.0mm*0.1mm;
(5) weld sticks the protection gummed paper, obtains the negative pole finished product of lithium ion battery.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449158A (en) * | 2015-11-07 | 2016-03-30 | 合肥国轩高科动力能源有限公司 | Control method for negative electrode exposed foil caused by particles in lithium battery coating process |
| CN105552310A (en) * | 2016-02-01 | 2016-05-04 | 宁波金和锂电材料有限公司 | Slurry stirring process for lithium-ion batteries and application |
| CN115023824A (en) * | 2020-01-30 | 2022-09-06 | 松下知识产权经营株式会社 | Lithium ion battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008034352A (en) * | 2006-06-30 | 2008-02-14 | Sanyo Electric Co Ltd | Lithium secondary cell and fabrication method thereof |
| CN101609882A (en) * | 2009-07-17 | 2009-12-23 | 江苏富朗特新能源有限公司 | A kind of lithium ion battery cathode slurry and preparation method thereof |
| CN102117914A (en) * | 2009-12-30 | 2011-07-06 | 比亚迪股份有限公司 | Battery aqueous adhesive, and electrode and battery using same |
| CN102361069A (en) * | 2011-09-30 | 2012-02-22 | 深圳市沃特玛电池有限公司 | Lithium ion battery negative electrode and its manufacturing method |
| CN102637847A (en) * | 2012-04-26 | 2012-08-15 | 宁波世捷新能源科技有限公司 | Method for preparing high-dispersity lithium battery anode and cathode slurry |
-
2012
- 2012-10-11 CN CN2012103832725A patent/CN102856531A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008034352A (en) * | 2006-06-30 | 2008-02-14 | Sanyo Electric Co Ltd | Lithium secondary cell and fabrication method thereof |
| CN101609882A (en) * | 2009-07-17 | 2009-12-23 | 江苏富朗特新能源有限公司 | A kind of lithium ion battery cathode slurry and preparation method thereof |
| CN102117914A (en) * | 2009-12-30 | 2011-07-06 | 比亚迪股份有限公司 | Battery aqueous adhesive, and electrode and battery using same |
| CN102361069A (en) * | 2011-09-30 | 2012-02-22 | 深圳市沃特玛电池有限公司 | Lithium ion battery negative electrode and its manufacturing method |
| CN102637847A (en) * | 2012-04-26 | 2012-08-15 | 宁波世捷新能源科技有限公司 | Method for preparing high-dispersity lithium battery anode and cathode slurry |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449158A (en) * | 2015-11-07 | 2016-03-30 | 合肥国轩高科动力能源有限公司 | Control method for negative electrode exposed foil caused by particles in lithium battery coating process |
| CN105552310A (en) * | 2016-02-01 | 2016-05-04 | 宁波金和锂电材料有限公司 | Slurry stirring process for lithium-ion batteries and application |
| CN115023824A (en) * | 2020-01-30 | 2022-09-06 | 松下知识产权经营株式会社 | Lithium ion battery |
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Application publication date: 20130102 |