CN108807896B - 一种氮掺杂碳包覆硅碳复合材料的制备方法 - Google Patents
一种氮掺杂碳包覆硅碳复合材料的制备方法 Download PDFInfo
- Publication number
- CN108807896B CN108807896B CN201810592133.0A CN201810592133A CN108807896B CN 108807896 B CN108807896 B CN 108807896B CN 201810592133 A CN201810592133 A CN 201810592133A CN 108807896 B CN108807896 B CN 108807896B
- Authority
- CN
- China
- Prior art keywords
- carbon
- composite material
- silicon
- nitrogen
- carbon composite
- 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 179
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 98
- 239000002153 silicon-carbon composite material Substances 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 150000007524 organic acids Chemical class 0.000 claims abstract description 54
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 45
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000000227 grinding Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000011065 in-situ storage Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000010000 carbonizing Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000007873 sieving Methods 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 56
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 33
- 229910052710 silicon Inorganic materials 0.000 claims description 28
- 239000010703 silicon Substances 0.000 claims description 28
- 239000012792 core layer Substances 0.000 claims description 24
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 22
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 125000000524 functional group Chemical group 0.000 claims description 12
- 229910021389 graphene Inorganic materials 0.000 claims description 12
- 239000011258 core-shell material Substances 0.000 claims description 11
- 238000001694 spray drying Methods 0.000 claims description 10
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- 229910021382 natural graphite Inorganic materials 0.000 claims description 6
- 239000002931 mesocarbon microbead Substances 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- 229910021383 artificial graphite Inorganic materials 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- SYBYTAAJFKOIEJ-UHFFFAOYSA-N 3-Methylbutan-2-one Chemical compound CC(C)C(C)=O SYBYTAAJFKOIEJ-UHFFFAOYSA-N 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 235000015165 citric acid Nutrition 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 7
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003575 carbonaceous material Substances 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 27
- 239000002131 composite material Substances 0.000 description 16
- 239000000843 powder Substances 0.000 description 16
- 238000003756 stirring Methods 0.000 description 16
- 239000000203 mixture Substances 0.000 description 10
- 150000002148 esters Chemical class 0.000 description 9
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- 239000007770 graphite material Substances 0.000 description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 125000003277 amino group Chemical group 0.000 description 8
- 238000003763 carbonization Methods 0.000 description 8
- 238000012216 screening Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 239000002210 silicon-based material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910013872 LiPF Inorganic materials 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000001291 vacuum drying Methods 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
- 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
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- 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 (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810592133.0A CN108807896B (zh) | 2018-06-11 | 2018-06-11 | 一种氮掺杂碳包覆硅碳复合材料的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810592133.0A CN108807896B (zh) | 2018-06-11 | 2018-06-11 | 一种氮掺杂碳包覆硅碳复合材料的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108807896A CN108807896A (zh) | 2018-11-13 |
CN108807896B true CN108807896B (zh) | 2020-10-23 |
Family
ID=64088134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810592133.0A Active CN108807896B (zh) | 2018-06-11 | 2018-06-11 | 一种氮掺杂碳包覆硅碳复合材料的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108807896B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110474034B (zh) * | 2019-08-22 | 2021-01-12 | 陕西科技大学 | 一种氮掺多孔纳米片硅碳复合材料及其制备方法和应用 |
CN111056555B (zh) * | 2019-12-27 | 2021-08-20 | 江西壹金新能源科技有限公司 | 一种锂化的硅基复合材料及其制备方法和应用 |
CN111403744A (zh) * | 2020-03-25 | 2020-07-10 | 广东凯金新能源科技股份有限公司 | 锂离子二次电池含氮硅氧碳化合物复合负极材料及制备方法 |
CN112952071B (zh) * | 2021-04-08 | 2022-03-18 | 合肥国轩高科动力能源有限公司 | 一种多孔导电陶瓷复合硅负极材料及其制备方法 |
CN115101741B (zh) * | 2022-08-10 | 2023-04-07 | 胜华新能源科技(东营)有限公司 | 氮掺杂石墨烯包覆硅碳复合材料及其制备方法和应用 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040016378A (ko) * | 2002-08-16 | 2004-02-21 | 대주전자재료 주식회사 | 고체 고분자 전해질막 연료전지용 세퍼레이터 |
CN104022257A (zh) * | 2014-06-16 | 2014-09-03 | 深圳市贝特瑞新能源材料股份有限公司 | 一种锂离子电池氧化亚硅复合负极材料、制备方法及其用途 |
CN104229789A (zh) * | 2014-09-25 | 2014-12-24 | 上海交通大学 | 一种氮掺杂石墨烯的制备方法 |
CN104600306A (zh) * | 2013-10-31 | 2015-05-06 | 青岛泰浩达碳材料有限公司 | 氮、石墨烯复合电极石墨材料的制备方法 |
CN106229479A (zh) * | 2016-08-18 | 2016-12-14 | 深圳市贝特瑞新能源材料股份有限公司 | 一种锂离子电池用活性炭复合负极材料、制备方法及锂离子电池 |
CN108063221A (zh) * | 2017-05-11 | 2018-05-22 | 华为技术有限公司 | 制备负极材料的方法、负极材料、负极极片和锂离子电池 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107403919B (zh) * | 2017-07-29 | 2021-01-08 | 合肥国轩高科动力能源有限公司 | 一种掺氮碳材料包覆氧化亚硅的复合材料及其制备方法 |
-
2018
- 2018-06-11 CN CN201810592133.0A patent/CN108807896B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040016378A (ko) * | 2002-08-16 | 2004-02-21 | 대주전자재료 주식회사 | 고체 고분자 전해질막 연료전지용 세퍼레이터 |
CN104600306A (zh) * | 2013-10-31 | 2015-05-06 | 青岛泰浩达碳材料有限公司 | 氮、石墨烯复合电极石墨材料的制备方法 |
CN104022257A (zh) * | 2014-06-16 | 2014-09-03 | 深圳市贝特瑞新能源材料股份有限公司 | 一种锂离子电池氧化亚硅复合负极材料、制备方法及其用途 |
CN104229789A (zh) * | 2014-09-25 | 2014-12-24 | 上海交通大学 | 一种氮掺杂石墨烯的制备方法 |
CN106229479A (zh) * | 2016-08-18 | 2016-12-14 | 深圳市贝特瑞新能源材料股份有限公司 | 一种锂离子电池用活性炭复合负极材料、制备方法及锂离子电池 |
CN108063221A (zh) * | 2017-05-11 | 2018-05-22 | 华为技术有限公司 | 制备负极材料的方法、负极材料、负极极片和锂离子电池 |
Also Published As
Publication number | Publication date |
---|---|
CN108807896A (zh) | 2018-11-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108565446B (zh) | 一种多孔氮掺杂碳包覆石墨材料的制备方法 | |
CN108807896B (zh) | 一种氮掺杂碳包覆硅碳复合材料的制备方法 | |
CN108054351B (zh) | 一种锂离子电池、所用的硅碳负极材料及其制备方法 | |
CN108346788B (zh) | 一种碳包覆硅铁合金复合负极材料的制备方法 | |
CN112133896B (zh) | 一种高容量石墨-硅-氧化亚硅复合材料及其制备方法、应用 | |
CN108394884A (zh) | 一种壳聚糖基高比表面积氮/磷共掺杂碳纳米片的制备方法 | |
CN110556530B (zh) | 一种硫化钼/三维大孔石墨烯的制备方法及锂离子电池负极材料 | |
CN101582503A (zh) | 一种沥青包覆石墨的锂离子电池负极材料及其制备方法 | |
CN112110448A (zh) | 一种氮掺杂碳与纳米硅复合负极材料及其制备方法 | |
CN111342014A (zh) | 一种锂离子电池硅碳负极材料及其制备方法 | |
CN108511664B (zh) | 一种锂硫电池隔膜及其制备方法 | |
CN115010109B (zh) | 酚醛环氧树脂基硬碳材料的制法和硬碳材料及钠离子电池 | |
CN109524629B (zh) | 一种锂离子电池用球形硅碳负极材料的制备方法 | |
CN108682828B (zh) | 一种氮掺杂碳包覆正极材料的制备方法 | |
CN111777065A (zh) | 锂离子电池用石墨改性材料及其制备方法 | |
WO2023273265A1 (zh) | 一种预锂化石墨烯及其制备方法和应用 | |
CN108682829B (zh) | 一种氮掺杂碳包覆硅复合石墨材料的制备方法 | |
CN110165179B (zh) | 一种锂电池负极材料及其制备方法与包含该负极材料的锂电池 | |
CN112421049A (zh) | 一种球磨制备锂电池硅碳负极材料的方法、硅碳负极材料 | |
CN108767249B (zh) | 一种硬碳电极材料的制备方法 | |
CN110723721A (zh) | 一种制备锂电池硅碳负极材料的方法、负极材料和锂电池 | |
CN114695851B (zh) | 一种复合负极材料、负极、电池及其制备方法 | |
CN113233440A (zh) | 一种高首效、优循环寿命的硬碳负极材料的改性制备方法 | |
CN109560280B (zh) | 一种纳米锡-二硫化钼复合物负极材料及其制备方法和应用 | |
CN112397701A (zh) | 一种稻壳基硅氧化物/碳复合负极材料及其制备方法与应用 |
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: Second floor, building a, Tsinghua campus, Shenzhen University Town, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen International Graduate School of Tsinghua University Patentee after: HUBEI RT ADVANCED MATERIALS Co.,Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili of Tsinghua Patentee before: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA University Patentee before: HUBEI RT ADVANCED MATERIALS Co.,Ltd. |
|
CP03 | Change of name, title or address | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220118 Address after: Second floor, building a, Tsinghua campus, Shenzhen University Town, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen International Graduate School of Tsinghua University Address before: Second floor, building a, Tsinghua campus, Shenzhen University Town, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen International Graduate School of Tsinghua University Patentee before: HUBEI RT ADVANCED MATERIALS Co.,Ltd. |
|
TR01 | Transfer of patent right |