CN110165198B - 一种包覆石墨烯的锂离子电池正极材料的制备方法 - Google Patents
一种包覆石墨烯的锂离子电池正极材料的制备方法 Download PDFInfo
- Publication number
- CN110165198B CN110165198B CN201910589602.8A CN201910589602A CN110165198B CN 110165198 B CN110165198 B CN 110165198B CN 201910589602 A CN201910589602 A CN 201910589602A CN 110165198 B CN110165198 B CN 110165198B
- Authority
- CN
- China
- Prior art keywords
- graphene
- mixed slurry
- binder
- substance
- lithium ion
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 65
- 239000007774 positive electrode material Substances 0.000 title claims abstract description 46
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 239000011268 mixed slurry Substances 0.000 claims abstract description 53
- 238000013329 compounding Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000001694 spray drying Methods 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 22
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- GRTOGORTSDXSFK-XJTZBENFSA-N ajmalicine Chemical compound C1=CC=C2C(CCN3C[C@@H]4[C@H](C)OC=C([C@H]4C[C@H]33)C(=O)OC)=C3NC2=C1 GRTOGORTSDXSFK-XJTZBENFSA-N 0.000 claims description 37
- 238000002156 mixing Methods 0.000 claims description 34
- 239000003292 glue Substances 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 14
- 230000005672 electromagnetic field Effects 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 13
- 239000013543 active substance Substances 0.000 claims description 12
- 238000000889 atomisation Methods 0.000 claims description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 239000010406 cathode material Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000010405 anode material Substances 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 239000002033 PVDF binder Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 229910006025 NiCoMn Inorganic materials 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000012496 blank sample Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- QPUYECUOLPXSFR-UHFFFAOYSA-N 1-methylnaphthalene Chemical compound C1=CC=C2C(C)=CC=CC2=C1 QPUYECUOLPXSFR-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 229910002983 Li2MnO3 Inorganic materials 0.000 description 1
- 229910012453 Li3Fe2(PO4)3 Inorganic materials 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910011279 LiCoPO4 Inorganic materials 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910002993 LiMnO2 Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- YWJVFBOUPMWANA-UHFFFAOYSA-H [Li+].[V+5].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O Chemical compound [Li+].[V+5].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O YWJVFBOUPMWANA-UHFFFAOYSA-H 0.000 description 1
- SOXUFMZTHZXOGC-UHFFFAOYSA-N [Li].[Mn].[Co].[Ni] Chemical compound [Li].[Mn].[Co].[Ni] SOXUFMZTHZXOGC-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 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
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 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
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SWVGZFQJXVPIKM-UHFFFAOYSA-N n,n-bis(methylamino)propan-1-amine Chemical compound CCCN(NC)NC SWVGZFQJXVPIKM-UHFFFAOYSA-N 0.000 description 1
- 150000004812 organic fluorine compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910589602.8A CN110165198B (zh) | 2019-07-02 | 2019-07-02 | 一种包覆石墨烯的锂离子电池正极材料的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910589602.8A CN110165198B (zh) | 2019-07-02 | 2019-07-02 | 一种包覆石墨烯的锂离子电池正极材料的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110165198A CN110165198A (zh) | 2019-08-23 |
CN110165198B true CN110165198B (zh) | 2020-10-20 |
Family
ID=67637397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910589602.8A Active CN110165198B (zh) | 2019-07-02 | 2019-07-02 | 一种包覆石墨烯的锂离子电池正极材料的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110165198B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112234199A (zh) * | 2020-09-15 | 2021-01-15 | 深圳市拓邦锂电池有限公司 | 锂离子电池正极浆料及其制备方法和锂离子电池正极片 |
CN115148945B (zh) * | 2022-06-24 | 2023-03-07 | 广东墨睿科技有限公司 | 一种高镍三元正极材料的改性方法 |
CN116072874B (zh) * | 2023-03-06 | 2023-08-01 | 宜宾锂宝新材料有限公司 | 正极材料及其制备方法、正极和锂离子电池 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10614966B2 (en) * | 2014-08-11 | 2020-04-07 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Aligned graphene-carbon nanotube porous carbon composite |
CN107528054B (zh) * | 2017-08-27 | 2019-10-29 | 上海玖银电子科技有限公司 | 一种石墨烯高能锂电池复合正极浆料及其制备方法 |
CN108539152A (zh) * | 2018-03-27 | 2018-09-14 | 宁夏汉尧石墨烯储能材料科技有限公司 | 喷雾干燥法制备石墨烯改性高镍系正极材料的方法及由该方法制备的正极材料 |
CN108807933B (zh) * | 2018-06-29 | 2021-01-12 | 深圳市德方纳米科技股份有限公司 | 一种正极材料及其制备方法 |
-
2019
- 2019-07-02 CN CN201910589602.8A patent/CN110165198B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN110165198A (zh) | 2019-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110165198B (zh) | 一种包覆石墨烯的锂离子电池正极材料的制备方法 | |
CN107026262B (zh) | 表面石墨烯包覆的高容量球形硬炭负极材料 | |
CN107863493B (zh) | 一种锂电池负极极片的制备方法 | |
CN108336300A (zh) | 一种锂离子电池正极极片及其制备方法 | |
CN110311136B (zh) | 一种石墨烯包覆锂离子电池三元正极材料 | |
CN109004275B (zh) | 电解液及二次电池 | |
CN115566255B (zh) | 一种二次电池及用电设备 | |
CN108493452B (zh) | 一种抑制极片材料膨胀的水性粘结剂及基于其的锂离子电池负极材料和制备方法 | |
CN113401897A (zh) | 一种黑磷基石墨复合锂离子电池负极材料的制备方法 | |
CN110311113B (zh) | 一种石墨烯包覆的锂离子电池正极材料 | |
CN113903981A (zh) | 锂离子电池及其制备方法和应用 | |
CN108417785B (zh) | 氟氮掺杂石墨烯包覆钛酸锂复合材料及其制备方法 | |
CN110190275B (zh) | 一种石墨烯改性锂离子电池三元正极材料 | |
CN113113572A (zh) | 一种锂离子电池用高倍率天然石墨基复合材料及其制备方法与应用 | |
CN104347875A (zh) | 锂离子电池正极材料磷酸铁锰锂及其制备方法 | |
CN110311137B (zh) | 一种定向排列的包覆石墨烯的锂离子电池正极材料 | |
CN110299525B (zh) | 一种石墨烯包覆锂离子电池正极材料的制备方法 | |
CN107256966B (zh) | 一种锂离子电池正极极片及其制备方法 | |
CN114221049B (zh) | 一种电芯析锂的判断方法 | |
CN109309228B (zh) | 正极活性材料、制备方法、正极和高比能量动力电池 | |
CN114695851B (zh) | 一种复合负极材料、负极、电池及其制备方法 | |
CN110233266B (zh) | 一种石墨烯改性锂离子电池三元正极材料的制备方法 | |
CN115458793A (zh) | 一种低温快充磷酸铁锂软包电芯、制作方法及动力电池 | |
CN108183216A (zh) | 一种碳包覆富锂锰基正极材料及其制备方法和锂离子电池 | |
CN112945791A (zh) | 一种锂离子二次电池浆料分散性的评估方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: No. 581, Baohu West Road, Xixia District, Yinchuan, Ningxia 750021 Patentee after: Ningxia Hanyao Lithium Technology Co.,Ltd. Address before: 750004 No.78, innovation park, Yinchuan economic and Technological Development Zone, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: NINGXIA HANYAO GRAPHENE ENERGY STORAGE MATERIAL TECHNOLOGY Co.,Ltd. |
|
CP03 | Change of name, title or address | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A preparation method of graphene coated positive electrode material for lithium-ion batteries Granted publication date: 20201020 Pledgee: China Construction Bank Corporation Yinchuan Xixia sub branch Pledgor: Ningxia Hanyao Lithium Technology Co.,Ltd.|Ningxia hanghan graphene Technology Research Institute (Co.,Ltd.) Registration number: Y2024640000012 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |