CN1661831A - Method for synthesizing pulp of anode material in lithium ion batteries - Google Patents
Method for synthesizing pulp of anode material in lithium ion batteries Download PDFInfo
- Publication number
- CN1661831A CN1661831A CN2004100154519A CN200410015451A CN1661831A CN 1661831 A CN1661831 A CN 1661831A CN 2004100154519 A CN2004100154519 A CN 2004100154519A CN 200410015451 A CN200410015451 A CN 200410015451A CN 1661831 A CN1661831 A CN 1661831A
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- CN
- China
- Prior art keywords
- lithium
- anode material
- synthesis
- bonding agent
- ion battery
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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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Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims description 17
- 229910001416 lithium ion Inorganic materials 0.000 title claims description 17
- 239000010405 anode material Substances 0.000 title claims description 14
- 230000002194 synthesizing effect Effects 0.000 title 1
- 239000002253 acid Substances 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract 5
- 239000002002 slurry Substances 0.000 claims description 18
- 239000007767 bonding agent Substances 0.000 claims description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000003786 synthesis reaction Methods 0.000 claims description 9
- KBIWNQVZKHSHTI-UHFFFAOYSA-N 4-n,4-n-dimethylbenzene-1,4-diamine;oxalic acid Chemical compound OC(=O)C(O)=O.CN(C)C1=CC=C(N)C=C1 KBIWNQVZKHSHTI-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- -1 benzene olefin Chemical class 0.000 claims description 6
- 239000006258 conductive agent Substances 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Natural products OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 5
- 239000006230 acetylene black Substances 0.000 claims description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910000314 transition metal oxide Inorganic materials 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
Advantages of the method are: reducing energy consumption, lightening equipment corrosion, environment protection and high specific capacity. The method includes following steps: mixing binding material with water and stirring mixture evenly; mixing and stirring added conduction agent evenly; stirring added lithium transition metal oxide, mixing and stirring another binding material; mixing a kind of free acid and water; adding diluent water solution of free acid into pulp obtained above, and stirring them evenly, coating and drying. Weight percentages of lithium transition metal oxide, first binding material, second binding material, free acid and water are: 100 : (25-35) : (1.5-3) : (1.5-3) : (2-4) : (30-50).
Description
Technical field
The present invention relates to the materials chemistry field, more specifically to the preparation method of anode material for lithium-ion batteries slurry.
Background technology
Lithium ion battery is commonly called as " lithium ", make negative pole with the graphite-like carbon materials, do anodal with the transition metal oxide that contains lithium, it is the best battery system of present combination property, because its operating voltage height, the specific energy height, have extended cycle life, characteristics such as nontoxic free from environmental pollution and memory-less effect, be widely used in palmtop computer, PDA, communication equipment, camera, satellite, guided missile, torpedo etc.
The method of conventional synthesis of anode material of lithium-ion battery slurry is transition metal oxide, Kynoar, electrically conductive graphite and carbon black or the conductive agent list use acetylene black with lithium at present, each raw material proportioning is mixed, middle employing N-methyl pyrrolidone and Kynoar are made solvent and are prepared anode material for lithium-ion batteries, and the shortcoming of this method is:
1, the bad oven dry of pole piece, electric power energy consumption is bigger;
2, equipment corrosion is serious, and the life-span is short;
3, environmental pollution;
4, the battery volume and capacity ratio is low, and cycle performance is poor slightly.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, a kind of method of synthesis of anode material of lithium-ion battery slurry is proposed, adopt specific processing step that lithium ion transition metal oxide, bonding agent, free acid, conductive agent are fully mixed and be solvent with water, this method can cut down the consumption of energy, alleviate equipment corrosion, environmental protection, and the positive electrode specific capacity that makes is higher.
The present invention is achieved by the following technical solutions:
Prepare a kind of anode material for lithium-ion batteries:
1) a kind of bonding agent is mixed, stirs with water;
2) adding a kind of conductive agent mixes, stirs;
3) adding a kind of lithium transition-metal oxide stirs;
4) add another kind of bonding agent and mix, stir;
5) a kind of free acid is mixed with water;
6) the free acid aqueous solution after will diluting adds above-mentioned slurry and mixes, stirs, back coating, oven dry;
Described lithium transition-metal oxide, described first kind of bonding agent, described second kind of bonding agent, described free acid, and the weight proportion of water be 100: (25-35): (1.5-3): (1.5-3): (2-4): (30-50);
Described lithium battery anode material lithium ion transition metal oxide is wherein a kind of in cobalt acid lithium, LiMn2O4, the lithium nickelate; Described first kind of bonding agent is the wherein a kind of of polyvinyl alcohol, benzene olefin(e) acid sodium; Described second kind of bonding agent is wherein a kind of that butadiene-styrene rubber, polyethylene glycol oxide are arranged; Described free acid is an ethanedioic acid; Described conductive agent is the wherein a kind of of acetylene black, electrically conductive graphite.
Description of drawings
Fig. 1 is a product cycle life resolution chart of the present invention;
Fig. 2 is product capacity voltage of the present invention, current relationship figure;
Embodiment
Below in conjunction with embodiment the present invention is further described:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | | Embodiment 5 | Embodiment 6 | |
| Cobalt acid lithium (g) | 100 | ?100 | ?100 | ?100 | ?100 | ?100 |
| Polyethylene glycol oxide (g) | 25 | ?28 | ?30 | ?32 | ?35 | ?35 |
| Benzene olefin(e) acid sodium (g) | 1.5 | ?1.8 | ?2.0 | ?2.5 | ?3.0 | ?3.5 |
| Ethanedioic acid (g) | 1.5 | ?1.8 | ?2.0 | ?2.5 | ?3.0 | ?3.5 |
| Acetylene black (g) | 2.0 | ?2.5 | ?2.8 | ?3.0 | ?3.5 | ?4.0 |
| Water (g) | 30 | ?35 | ?40 | ?45 | ?50 | ?50 |
Above proportioning is weight ratio, and unit is gram.
Manufacturing process of the present invention is as follows, environmental requirement: temperature: room temperature; Humidity: below 40%:
The first step: polyethylene glycol oxide is mixed with water in the eggbeater of packing into, stirred at a slow speed 5 minutes, 300 rev/mins were stirred 5 minutes, stirred 20 minutes with 600 rev/mins then; The purpose that adds polyoxyethylene is to promote metal pickup and thickening;
Second step: acetylene black is added in the eggbeater, and with 300 rev/mins of stirrings 10 minutes, 300 rev/mins were stirred 5 minutes, stirred 40 minutes with 600 rev/mins then, and temperature is controlled at below 40 ℃;
The 3rd step: the slurry in the eggbeater is moved in the power mixer, add cobalt acid lithium, 15 rotations 20 of revolving round the sun were stirred 10 minutes, stirred 100 minutes with revolution 35 rotations 40 then, and but cool with the cool but water of circulation, temperature is controlled at below 40 ℃;
The 4th step: benzene olefin(e) acid sodium is joined in the slurry of power mixer, and 20 rotations 30 of revolving round the sun were stirred 5 minutes, stirred 90 minutes with revolution 35 rotations 40 then, and temperature is controlled at 40 ℃; Here adding benzene olefin(e) acid sodium is in order to improve a grade sheet flexibility, viscosity, to guarantee electric potential balancing simultaneously;
The 5th step: ethanedioic acid and water are mixed in the adding eggbeater, mix, temperature is controlled at 40 ℃;
The 6th step: the ethanedioic acid aqueous solution after will diluting joins in the slurry of power mixer, with this pH value of controlling mixed slurry, make pH value less than 9,15 rotations 20 of revolving round the sun were stirred 5 minutes, stirred 25 minutes with revolution 35 rotations 40 then, temperature is controlled at 40 ℃;
The 7th step: 15 rotations are transferred in the power mixer revolution are transferred to 20, open vacuum plant, inside is evacuated down to 0.08Mpa, static 5 minutes, lays down vacuum then slurry is taken out;
The 8th step: slurry is crossed 150 mesh sieves, and environmental requirement is, temperature room temperature, humidity be below 40%, no dust.
The slurry for preparing is coated with by coating machine, and temperature is controlled at about 120 ℃.
According to above-mentioned 1-6 embodiment, in conjunction with Figure of description 1, accompanying drawing 2 provable product charging capacity＞128mAh/g, discharge capacity＞125mAh/g, charge efficiency＞95% through this method preparation.
Claims (6)
1, a kind of method of synthesis of anode material of lithium-ion battery slurry is characterized in that may further comprise the steps according to this:
1) a kind of bonding agent is mixed, stirs with water;
2) adding a kind of conductive agent mixes, stirs;
3) adding a kind of lithium transition-metal oxide stirs;
4) adding another kind of bonding agent mixes, stirs;
5) a kind of free acid is mixed with water;
6) the free acid aqueous solution that adds after diluting adds above-mentioned slurry mixing, stirs, back coating, oven dry;
Described lithium transition-metal oxide, described first kind of bonding agent, described second kind of bonding agent, described free acid, and the weight proportion of water be 100: (25-35): (1.5-3): (2-4): (30-50).
2, the method for synthesis of anode material of lithium-ion battery slurry according to claim 1 is characterized in that described lithium ion transition metal oxide is wherein a kind of in cobalt acid lithium, LiMn2O4, the lithium nickelate.
3, the method for synthesis of anode material of lithium-ion battery slurry according to claim 1 is characterized in that described first kind of bonding agent is the wherein a kind of of polyvinyl alcohol, benzene olefin(e) acid sodium.
4, the method for synthesis of anode material of lithium-ion battery slurry according to claim 1 is characterized in that described second kind of bonding agent is the wherein a kind of of organic silicic acid, this rubber of fourth.
5, the method for synthesis of anode material of lithium-ion battery slurry according to claim 1 is characterized in that described free acid is an ethanedioic acid.
6, the method for synthesis of anode material of lithium-ion battery slurry according to claim 1 is characterized in that described conductive agent is the wherein a kind of of acetylene black, electrically conductive graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100154519A CN100337349C (en) | 2004-02-23 | 2004-02-23 | Method for synthesizing pulp of anode material in lithium ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100154519A CN100337349C (en) | 2004-02-23 | 2004-02-23 | Method for synthesizing pulp of anode material in lithium ion batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1661831A true CN1661831A (en) | 2005-08-31 |
| CN100337349C CN100337349C (en) | 2007-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100154519A Expired - Fee Related CN100337349C (en) | 2004-02-23 | 2004-02-23 | Method for synthesizing pulp of anode material in lithium ion batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100337349C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010066198A1 (en) * | 2008-12-10 | 2010-06-17 | 深圳市比克电池有限公司 | Method for preparing positive electrode paste of lithium ion battery |
| CN101980396A (en) * | 2010-09-08 | 2011-02-23 | 秦皇岛市芯驰光电科技有限公司 | Method for preparing lithium ion battery anode paste |
| CN101393978B (en) * | 2007-09-19 | 2012-11-28 | 深圳市比克电池有限公司 | Pulp for lithium ionic cell electrode and manufacturing method thereof |
| CN103094556A (en) * | 2013-01-30 | 2013-05-08 | 浙江超威创元实业有限公司 | Method for preparing positive electrode slurry of lithium ion battery |
| CN103107329A (en) * | 2013-01-30 | 2013-05-15 | 浙江超威创元实业有限公司 | Preparation method of lithium manganate battery positive pole sizing agent |
| CN103682246A (en) * | 2013-12-13 | 2014-03-26 | 武汉昊诚能源科技有限公司 | High load Li-Mn battery and preparation method thereof |
| CN103915607A (en) * | 2014-04-29 | 2014-07-09 | 唐山金能电子科技有限公司 | Preparation method and application method of lithium ion battery |
| CN104466173A (en) * | 2013-09-16 | 2015-03-25 | 四川英志新能源股份有限公司 | Anode water system stirring process of LFP (lithium ferric phosphate) battery manufacturing process |
| US20150107093A1 (en) * | 2013-10-23 | 2015-04-23 | Johnson Controls Technology Company | Aqueous cathode slurry |
| CN107819108A (en) * | 2017-11-06 | 2018-03-20 | 贵州省铜仁华迪斯新能源有限公司 | Ternary electrode slurry, ternary electrode piece and preparation method |
| CN108448052A (en) * | 2017-02-09 | 2018-08-24 | 日本斯频德制造株式会社 | Slurry manufacturing device and production method for pulp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW434187B (en) * | 1997-05-07 | 2001-05-16 | Fuji Chem Ind Co Ltd | A process for preparing a spinel type of lithium manganese complex oxide |
| CN1107356C (en) * | 1998-07-08 | 2003-04-30 | 武汉大学 | Method for manufacturing lithium ion battery of plastic film |
| JP2000100433A (en) * | 1998-09-25 | 2000-04-07 | Toyota Central Res & Dev Lab Inc | Nickel oxide covering lithium manganese composite oxide powder and manufacture therefor |
| JP2000149948A (en) * | 1998-11-12 | 2000-05-30 | Toshiba Corp | Positive active material, lithium ion secondary battery and manufacture of its positive active material |
| CN1221054C (en) * | 2003-06-18 | 2005-09-28 | 福建南平南孚電池有限公司 | Bag lithium ion battery preparing method and battery thereby |
-
2004
- 2004-02-23 CN CNB2004100154519A patent/CN100337349C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101393978B (en) * | 2007-09-19 | 2012-11-28 | 深圳市比克电池有限公司 | Pulp for lithium ionic cell electrode and manufacturing method thereof |
| WO2010066198A1 (en) * | 2008-12-10 | 2010-06-17 | 深圳市比克电池有限公司 | Method for preparing positive electrode paste of lithium ion battery |
| CN101980396A (en) * | 2010-09-08 | 2011-02-23 | 秦皇岛市芯驰光电科技有限公司 | Method for preparing lithium ion battery anode paste |
| CN103094556A (en) * | 2013-01-30 | 2013-05-08 | 浙江超威创元实业有限公司 | Method for preparing positive electrode slurry of lithium ion battery |
| CN103107329A (en) * | 2013-01-30 | 2013-05-15 | 浙江超威创元实业有限公司 | Preparation method of lithium manganate battery positive pole sizing agent |
| CN104466173A (en) * | 2013-09-16 | 2015-03-25 | 四川英志新能源股份有限公司 | Anode water system stirring process of LFP (lithium ferric phosphate) battery manufacturing process |
| CN105765768A (en) * | 2013-10-23 | 2016-07-13 | 约翰逊控制技术公司 | Aqueous cathode slurry prepared by adding oxalic acid and cathode produced therefrom |
| US20150107093A1 (en) * | 2013-10-23 | 2015-04-23 | Johnson Controls Technology Company | Aqueous cathode slurry |
| US11569494B2 (en) * | 2013-10-23 | 2023-01-31 | Cps Technology Holdings Llc | Aqueous cathode slurry |
| CN103682246A (en) * | 2013-12-13 | 2014-03-26 | 武汉昊诚能源科技有限公司 | High load Li-Mn battery and preparation method thereof |
| CN103682246B (en) * | 2013-12-13 | 2016-03-16 | 武汉昊诚能源科技有限公司 | A kind of high load Li-Mn battery and preparation method thereof |
| CN103915607A (en) * | 2014-04-29 | 2014-07-09 | 唐山金能电子科技有限公司 | Preparation method and application method of lithium ion battery |
| CN103915607B (en) * | 2014-04-29 | 2016-02-24 | 唐山金能电子科技有限公司 | A kind of preparation method of lithium ion battery and using method |
| CN108448052A (en) * | 2017-02-09 | 2018-08-24 | 日本斯频德制造株式会社 | Slurry manufacturing device and production method for pulp |
| CN107819108A (en) * | 2017-11-06 | 2018-03-20 | 贵州省铜仁华迪斯新能源有限公司 | Ternary electrode slurry, ternary electrode piece and preparation method |
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| Publication number | Publication date |
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| CN100337349C (en) | 2007-09-12 |
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Owner name: BAK INTERNATIONAL (TIANJIN) CO., LTD. Free format text: FORMER OWNER: BIKE BATTERY CO., LTD., SHENZHEN CITY Effective date: 20090619 |
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Effective date of registration: 20090619 Address after: 6, Hua Xin Road, Beichen science and Technology Park, Beichen District, Tianjin, zip code: 300402 Co-patentee after: Shenzhen Bak Battery Co., Ltd. Patentee after: Beek International (Tianjin) Co., Ltd. Address before: Four, five buildings, Li River Industrial Zone, Shiyan Town, Shiyan City, Guangdong, Shenzhen Province: 518057, Patentee before: Shenzhen Bak Battery Co., Ltd. |
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Effective date of registration: 20170609 Address after: 518119 Beek Industrial Zone, Kwai Chung street, Dapeng New District, Guangdong, Shenzhen Patentee after: SHENZHEN BAK BATTERY CO., LTD. Address before: 300402 6 Huaxin Road, Beichen Science Park, Beichen District, Tianjin Co-patentee before: Shenzhen Bak Battery Co., Ltd. Patentee before: BAK International (Tianjin) Limited |
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Granted publication date: 20070912 Termination date: 20190223 |
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