CN102376940A - Lithium ion battery, cathode slurry and preparation method thereof - Google Patents
Lithium ion battery, cathode slurry and preparation method thereof Download PDFInfo
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- CN102376940A CN102376940A CN2010102589756A CN201010258975A CN102376940A CN 102376940 A CN102376940 A CN 102376940A CN 2010102589756 A CN2010102589756 A CN 2010102589756A CN 201010258975 A CN201010258975 A CN 201010258975A CN 102376940 A CN102376940 A CN 102376940A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 34
- 239000006257 cathode slurry Substances 0.000 title claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000006258 conductive agent Substances 0.000 claims abstract description 20
- 239000000314 lubricant Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 8
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 8
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 150000002576 ketones Chemical class 0.000 claims abstract description 7
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 19
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000007773 negative electrode material Substances 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 11
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- ZPOLNCDBPYJDSE-UHFFFAOYSA-N 3-[4-[bis(2-chloroethyl)amino]phenyl]-2-formamidopropanoic acid Chemical compound O=CNC(C(=O)O)CC1=CC=C(N(CCCl)CCCl)C=C1 ZPOLNCDBPYJDSE-UHFFFAOYSA-N 0.000 claims description 4
- 239000003125 aqueous solvent Substances 0.000 claims description 4
- 150000004040 pyrrolidinones Chemical class 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 17
- 239000010439 graphite Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 229910002804 graphite Inorganic materials 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 13
- 238000004513 sizing Methods 0.000 abstract description 12
- 239000002904 solvent Substances 0.000 abstract description 12
- 239000002002 slurry Substances 0.000 abstract description 7
- 238000009736 wetting Methods 0.000 abstract description 6
- 239000000080 wetting agent Substances 0.000 abstract description 2
- 239000013543 active substance Substances 0.000 abstract 1
- 125000003158 alcohol group Chemical group 0.000 abstract 1
- 239000003013 cathode binding agent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 239000006229 carbon black Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 240000003936 Plumbago auriculata Species 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a lithium ion battery, cathode slurry and a preparation method. The method comprises the following steps: (1) a cathode active substance and a cathode conductive agent are mixed in a stirrer, and then a lubricant is added for uniformly stirring; (2) an additive sodium carboxymethylcellulose CMC is added in the stirrer for stirring; (3) the substance in the stirrer is added in a mixed sizing material which is composed of cathode solvent water and cathode binder, uniformly mixed and stirred to prepare the cathode slurry. The lubricant is alcohol, ketone, or a mixture of alcohol and ketone. The invention employs a combination of a wetting agent, graphite and the conductive agent, thereby the wetting time can be effectively shortened, the preparation time of the slurry is shortened, and the uniformity and stability of the cathode slurry are enhanced.
Description
Technical field
The present invention relates to lithium ion battery and make the field, specifically relate to cathode size of a kind of lithium ion battery and preparation method thereof.
Background technology
Characteristics such as lithium ion battery was introduced to the market by sony corporation of japan the nineties in last century, and is high because of the battery operated voltage of monomer whose, that energy density is big, have extended cycle life are used widely in small-sized portable power source fields such as mobile phone, notebook computers.Along with the further lifting of lithium ion battery energy density and power density, it has been regarded as the ideal source of hybrid vehicle and electric automobile, is one type of energy storage device with broad prospect of application.
Lithium ion battery preparation technology's first procedure is homogenate, exactly active material and solvent, conductive agent, binding agent etc. is mixed to obtain to have the slurry of certain viscosity and solid content.It is solvent (being the oiliness slurry) that existing anode sizing agent uses NMP (n-formyl sarcolysine base pyrrolidones) more.Cathode size solvent under the pressure that reduces cost changes water (being water paste) into by NMP.Though use water as solvent can significantly reduce the manufacturing cost of lithium ion battery, the stability of water paste not as good as the oiliness slurry sedimentation phenomenon takes place easily, influenced the continous-stable running of producing.For improving the stability of water paste, Chinese patent document CN 101609882A proposes the technology that profit mixes, and promptly prepares at glue and uses the profit mixed solvent in the process, and this technology can prepare the cathode size than water paste good stability.Yet, this technology time spent very long (14～20h), had a strong impact on the lifting of production efficiency, and adopted the NMP ratio too high, limited to the effect that reduces cost.
Because the surface tension of graphite granule in water be big, though the density of graphite greater than water, is spilt powdered graphite behind the water surface, the graphite granule surface is difficult for evenly dispersion in water because of can't effective wetting floating at the water surface.Can add antisettling agent sodium carboxymethylcellulose CMC in the production technology of existing watersoluble plumbago cathode size.The CMC viscosity is high; Be unfavorable for mixing of active material and glue, when serious even can be because half-dried material be attached on the stirring arm of mixer the mixing power that the suffered resistance of stirring arm can provide greater than mixer; Cause equipment alarm, ordinary production is made a big impact.
Summary of the invention
The technical problem that the present invention will solve is to overcome above defective, proposes a kind of preparation method of lithium ion battery cathode slurry, improves uniformity, the stability of water-base cathode slurry.
The present invention also proposes to adopt the lithium ion battery and the cathode size thereof of this preparation method's preparation.
Technical problem of the present invention is achieved through following technical scheme.
The preparation method of this lithium ion battery cathode slurry may further comprise the steps: (1) is mixed the back with negative electrode active material and cathode conductive agent and is added lubricant and stir in blender; (2) with stirring in the additive sodium carboxymethylcellulose CMC adding blender; (3) material in the above-mentioned blender is added in the blend glue stuff of negative pole aqueous solvent and negative pole binding agent, mixing and stirring is processed cathode size.
Said lubricant is the mixture of alcohol, ketone or alcohol and ketone.
Said lubricant is one or more a mixture of n-formyl sarcolysine base pyrrolidones NMP, methyl alcohol, ethanol, acetone.
The weight of said lubricant be negative electrode active material and cathode conductive agent powder weight and 1/20～1/4.
In the said step (1) negative electrode active material and cathode conductive agent, lubricant were stirred 5～40 minutes, and when stirring, blender inside is vacuumized.
In the said step (2) addition of C MC gradation added in the blender and stir.
Said cathode conductive agent is a conductive carbon black, and said negative pole binding agent is a styrene butadiene rubber sbr.
The lithium ion battery cathode slurry that the present invention proposes adopts preparation method's preparation of above-mentioned lithium ion battery cathode slurry.
The preparation method of the lithium ion battery that the present invention proposes comprises the preparation process of cathode size, and the preparation process of said cathode size may further comprise the steps: (1) mixes in blender negative electrode active material and cathode conductive agent afterwards that the adding lubricant stirs; (2) with stirring in the addition of C MC adding blender; (3) material in the above-mentioned blender is added in the blend glue stuff of negative pole aqueous solvent and negative pole binding agent, mixing and stirring is processed cathode size.
The lithium ion battery that the present invention proposes adopts preparation method's preparation of above-mentioned lithium ion battery.
The beneficial effect that the present invention and prior art contrast are had is:
1) enhances productivity.Owing to adopt wetting agent to mix with graphite and conductive agent, when graphite and conductive agent surface after good wet, glue can reach wetting particle surface more smoothly, can effectively shorten wetting time, the shortening pulp preparation time.
2) uniformity, the stability of raising cathode size.Select the wetting graphite of organic liquid that has the good wet effect with graphite for use, can make graphite surface fully wetting, help the even dispersion of graphite granule in glue, promote the even uniformity and the stability that improves slurry of mixing of glue and active material.
Embodiment
Embodiment 1
The cathode size for preparing a kind of lithium ion battery, its technology comprises the following steps.
(101) negative electrode active material native graphite 2000g and cathode conductive agent carbon black 50g are mixed in stirred tank, add lubricant methyl alcohol 15g, stir 5～40 minutes to mixing;
(102) with stirring in the additive sodium carboxymethylcellulose CMC30g adding blender;
(103) with the mixing of negative pole solvent deionized water 2000g and negative pole binding agent SBR60g, process sizing material, material in the above-mentioned blender is added in the sizing material, mix and stirred 8 hours, process cathode size.
Embodiment 2
The cathode size for preparing a kind of lithium ion battery, its technology comprises the following steps.
(201) negative electrode active material native graphite 2000g and cathode conductive agent carbon black 50g are mixed in stirred tank, add lubricant n-formyl sarcolysine base pyrrolidones NMP and acetone 200g altogether, stir 5～40 minutes to mixing;
(202) with stirring in the additive sodium carboxymethylcellulose CMC30g adding blender;
(203) with the mixing of negative pole solvent deionized water 2000g and negative pole binding agent SBR60g, process sizing material, material in the above-mentioned blender is added in the sizing material, mix and stirred 7.5 hours, process cathode size.
Embodiment 3
The cathode size for preparing a kind of lithium ion battery, its technology comprises the following steps.
(301) negative electrode active material native graphite 2000g and cathode conductive agent carbon black 50g are mixed in stirred tank, add lubricant methyl alcohol and ethanol 600g altogether, stir 5～40 minutes to mixing;
(302) with stirring in the additive sodium carboxymethylcellulose CMC30g adding blender;
(303) with the mixing of negative pole solvent distilled water 2000g and negative pole binding agent SBR60g, process sizing material, material in the above-mentioned blender is added in the sizing material, mix and stirred 7 hours, process cathode size.
Comparative Examples 4
The cathode size for preparing a kind of lithium ion battery, its technology comprises the following steps.
(401) negative electrode active material native graphite 2000g and cathode conductive agent carbon black 50g are mixed in stirred tank;
(402) with stirring in the additive sodium carboxymethylcellulose CMC30g adding blender;
(403) with the mixing of negative pole solvent deionized water 2000g and negative pole binding agent SBR60g, process sizing material, material in the above-mentioned blender is added in the sizing material, mix and stirred 10 hours, process cathode size.
The foregoing description 1～3 data with Comparative Examples 4 preparation processes are compared, measure slurry viscosity in its preparation process, leave standstill after 8 hours and observe stability of slurry.As shown in table 1.
Table 1
Embodiment 5
The preparation model is 423048AH, and nominal capacity is the lithium ion battery of 650mAh, and the preparation process of its electric core is following.
501) anodal batching.With positive active material cobalt acid lithium LiCoO
2, anodal conductive agent acetylene black (adopting Cabot CABOT superconduct carbon black BP2000), anodal adhesive PVDF (model RC10214) and solvent NMP mixing and stirring, process anode sizing agent.
502) cathode blending.Adopt the step among the embodiment 1 to prepare cathode size.
503) apply.Anode sizing agent is coated on 16 μ m thickness plus plate current-collecting body aluminium foils two-sided, and positive plate is processed in dry and roll-in, positive plate is cut into the anodal small pieces of certain size, and welding aluminium strip on the anodal small pieces.Cathode size is coated on the negative current collector Copper Foil of 10 μ m thickness, negative plate is processed in dry and roll-in, negative plate is cut into the negative pole small pieces of certain size, and welding nickel strap on the negative pole small pieces.
504) preparing electrolyte.With lithium salts LiPF
6Be dissolved in the lithium salts solvent, solvent adopts EC, EMC, DMC mixed solvent, and three's mass ratio is EC: EMC: DMC=1: 1: 1.
505) assembling.Anodal small pieces, barrier film and the negative pole small pieces that branch is cut stacked or reel after pack in the aluminum metal battery case, battery case and cap assembly are carried out welded seal, with the electrolyte injection aluminum hull for preparing.
506) battery change into, partial volume.
Embodiment 6
Itself and embodiment 5 differences are step 502) in the cathode blending, adopt the step among the embodiment 2 to prepare cathode size.
Embodiment 7
Itself and embodiment 5 differences are step 502) in the cathode blending, adopt the step among the embodiment 3 to prepare cathode size.
Comparative Examples 8
Itself and embodiment 5 differences are step 502) in the cathode blending, adopt the step in the Comparative Examples 4 to prepare cathode size.
Each 50 on battery getting embodiment 5～7 and Comparative Examples 8 gained carries out the cycle performance test, and testing procedure is: the battery after will changing into earlier with the 0.5C constant current charge to 4.2V, again with the 4.2V constant voltage charge to cut-off current 0.02C.Then with the 1C current discharge to 3.7V.Repeat above process, write down each discharge capacity, the capability retention after the computation cycles 300 times.The result is as shown in table 2.
Table 2
Can find out that from table 1,2 behind interpolation alcohol, the ketone organic lubricant, battery has excellent cycle performance in cathode size, and, make that battery production efficient is improved, cost reduces because the preparation time of cathode size shortens.
Above content is to combine concrete execution mode to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. the preparation method of a lithium ion battery cathode slurry is characterized in that, may further comprise the steps:
(1) negative electrode active material and cathode conductive agent being mixed the back in blender adds lubricant and stirs;
(2) with stirring in the additive sodium carboxymethylcellulose CMC adding blender;
(3) material in the above-mentioned blender is added in the blend glue stuff of negative pole aqueous solvent and negative pole binding agent, mixing and stirring is processed cathode size.
2. the preparation method of lithium ion battery as claimed in claim 1 is characterized in that: said lubricant is the mixture of alcohol, ketone or alcohol and ketone.
3. the preparation method of lithium ion battery as claimed in claim 2 is characterized in that: said lubricant is one or more a mixture of n-formyl sarcolysine base pyrrolidones NMP, methyl alcohol, ethanol, acetone.
4. like the preparation method of claim 1,2 or 3 described lithium ion batteries, it is characterized in that: the weight of said lubricant be negative electrode active material and cathode conductive agent powder weight and 1/20～1/4.
5. the preparation method of lithium ion battery as claimed in claim 4 is characterized in that: in the said step (1) negative electrode active material and cathode conductive agent, lubricant were stirred 5～40 minutes, and when stirring, blender inside is vacuumized.
6. the preparation method of lithium ion battery as claimed in claim 5 is characterized in that: in the said step (2) addition of C MC gradation added in the blender and stir.
7. the preparation method of lithium ion battery as claimed in claim 4, it is characterized in that: said cathode conductive agent is a conductive carbon black, said negative pole binding agent is a styrene butadiene rubber sbr.
8. a lithium ion battery cathode slurry adopts preparation method's preparation of any lithium ion battery cathode slurry in the claim 1～7.
9. the preparation method of a lithium ion battery comprises the preparation process of cathode size it is characterized in that the preparation process of cathode size may further comprise the steps:
(1) negative electrode active material and cathode conductive agent being mixed the back in blender adds lubricant and stirs;
(2) with stirring in the addition of C MC adding blender;
(3) material in the above-mentioned blender is added in the blend glue stuff of negative pole aqueous solvent and negative pole binding agent, mixing and stirring is processed cathode size.
10. the lithium ion battery of the preparation method of lithium ion battery according to claim 9 preparation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010258975.6A CN102376940B (en) | 2010-08-20 | 2010-08-20 | Lithium ion battery, cathode size and preparation method thereof |
| HK12108796.5A HK1168202A1 (en) | 2010-08-20 | 2012-09-07 | Li-ion battery, anode paste and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010258975.6A CN102376940B (en) | 2010-08-20 | 2010-08-20 | Lithium ion battery, cathode size and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102376940A true CN102376940A (en) | 2012-03-14 |
| CN102376940B CN102376940B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010258975.6A Active CN102376940B (en) | 2010-08-20 | 2010-08-20 | Lithium ion battery, cathode size and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102376940B (en) |
| HK (1) | HK1168202A1 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198935A (en) * | 2013-04-18 | 2013-07-10 | 山东大学 | Preparation method of graphene sheet modified spinel type lithium manganate or alpha type manganese dioxide electrode |
| CN104409736A (en) * | 2014-11-14 | 2015-03-11 | 无锡信大气象传感网科技有限公司 | Lithium ion battery anode material and manufacturing method thereof |
| CN104466111A (en) * | 2014-12-09 | 2015-03-25 | 河北银隆新能源有限公司 | Preparation process of lithium battery slurry |
| CN104733692A (en) * | 2015-03-29 | 2015-06-24 | 河南新太行电源有限公司 | Lithium ion battery anode water-based formula and processing technology |
| CN106848204A (en) * | 2015-12-05 | 2017-06-13 | 中山天贸电池有限公司 | A kind of method for mixing of graphite material at negative |
| CN107910502A (en) * | 2017-11-15 | 2018-04-13 | 上海空间电源研究所 | A kind of lithium battery anode composite manufacture method and the battery |
| CN108232148A (en) * | 2017-12-28 | 2018-06-29 | 福建猛狮新能源科技有限公司 | The preparation method of negative electrode of lithium ion battery and preparation method thereof and battery |
| CN108598487A (en) * | 2018-05-15 | 2018-09-28 | 中航锂电（江苏）有限公司 | A kind of preparation method of negative electrode of lithium ion battery conductive gelatin |
| CN109037676A (en) * | 2017-06-09 | 2018-12-18 | 宁德时代新能源科技股份有限公司 | Lithium ion battery cathode slurry and preparation method thereof |
| CN109817985A (en) * | 2019-03-25 | 2019-05-28 | 福建冠城瑞闽新能源科技有限公司 | A kind of lithium ion battery anode slurry stabilizer and preparation method thereof, application |
| CN111725508A (en) * | 2020-06-22 | 2020-09-29 | 湖北亿纬动力有限公司 | Preparation method of negative electrode slurry without glue solution, obtained negative electrode slurry and application |
| CN111900325A (en) * | 2020-06-23 | 2020-11-06 | 江苏天鹏电源有限公司 | Rapid dissolution method of CMC for lithium ion battery and preparation method of negative plate |
| CN112366314A (en) * | 2020-11-19 | 2021-02-12 | 惠州亿纬锂能股份有限公司 | Lithium ion battery negative electrode slurry and preparation method thereof, and lithium ion battery |
| CN112366310A (en) * | 2020-11-19 | 2021-02-12 | 惠州亿纬锂能股份有限公司 | Lithium ion battery anode slurry and preparation method thereof and lithium ion battery |
| CN112366318A (en) * | 2020-11-02 | 2021-02-12 | 横店集团东磁股份有限公司 | Negative electrode slurry and preparation method and application thereof |
| CN112838185A (en) * | 2021-01-05 | 2021-05-25 | 苏州宇量电池有限公司 | Multi-solvent system lithium ion battery cathode batching method |
| CN113346037A (en) * | 2020-02-18 | 2021-09-03 | 中国石油化工股份有限公司 | Battery negative electrode slurry and preparation method thereof, lithium ion battery negative electrode plate and lithium ion battery |
| CN113964324A (en) * | 2021-10-27 | 2022-01-21 | 远景动力技术(江苏)有限公司 | Paste conductive agent and preparation method thereof, negative electrode slurry and preparation method thereof, negative electrode and lithium ion battery |
| CN116598510A (en) * | 2023-07-18 | 2023-08-15 | 江苏一特新材料有限责任公司 | Wetting agent for lithium battery negative electrode slurry, preparation method of wetting agent and lithium battery negative electrode slurry |
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