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1. 发明授权

US10038182B2 Graphene coating modified electrode plate for lithium secondary battery and method for producing the same 有权
公开(公告)号：US10038182B2
公开(公告)日：2018-07-31
申请号：US13577471
申请日：2011-11-02
申请人： Zhaoping Liu , Changlin Tang , Jiangang Zhang , Xufeng Zhou , Huasheng Hu
发明人： Zhaoping Liu , Changlin Tang , Jiangang Zhang , Xufeng Zhou , Huasheng Hu
IPC分类号： H01M4/66 , H01M4/36 , H01M4/136 , H01M4/62 , H01M10/052 , H01M4/04 , H01M4/1397 , H01M4/13 , H01M4/139 , H01M4/02
CPC分类号： H01M4/136 , H01M4/0404 , H01M4/13 , H01M4/139 , H01M4/1397 , H01M4/366 , H01M4/622 , H01M4/625 , H01M4/663 , H01M4/667 , H01M10/052 , H01M2004/021
摘要： The present invention provides a graphene coating-modified electrode plate for lithium secondary battery, characterized in that, the electrode plate comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. A graphene coating-modified electrode plate for lithium secondary battery according to the present invention comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. The graphene-modified electrode plate for lithium secondary battery thus obtained increases the electrical conductivity and dissipation functions of the electrode plate due to the better electrical conductivity and thermal conductivity of graphene. The present invention further provides a method for producing a graphene coating-modified electrode plate for lithium secondary battery.

2. 发明申请

US20140315083A1 GRAPHENE COATING MODIFIED ELECTRODE PLATE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME 审中-公开
标题翻译：用于锂二次电池的石墨涂层改性电极板及其制造方法
公开(公告)号：US20140315083A1
公开(公告)日：2014-10-23
申请号：US13577471
申请日：2011-11-02
申请人： Zhaoping Liu , Changlin Tang , Jiangang Zhang , Xufeng Zhou , Huasheng Hu
发明人： Zhaoping Liu , Changlin Tang , Jiangang Zhang , Xufeng Zhou , Huasheng Hu
IPC分类号： H01M4/136 , H01M4/1397 , H01M4/04 , H01M4/62
CPC分类号： H01M4/136 , H01M4/0404 , H01M4/13 , H01M4/139 , H01M4/1397 , H01M4/366 , H01M4/622 , H01M4/625 , H01M4/663 , H01M4/667 , H01M10/052 , H01M2004/021
摘要： The present invention provides a graphene coating-modified electrode plate for lithium secondary battery, characterized in that, the electrode plate comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. A graphene coating-modified electrode plate for lithium secondary battery according to the present invention comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. The graphene-modified electrode plate for lithium secondary battery thus obtained increases the electrical conductivity and dissipation functions of the electrode plate due to the better electrical conductivity and thermal conductivity of graphene. The present invention further provides a method for producing a graphene coating-modified electrode plate for lithium secondary battery.
摘要翻译：本发明提供了一种用于锂二次电池的石墨烯涂层改性电极板，其特征在于，电极板包括集电体箔，涂覆在集电箔两面的石墨烯层和涂覆在石墨烯上的电极活性材料层层根据本发明的用于锂二次电池的石墨烯涂层改性电极板包括集电体箔，涂覆在集电箔两面的石墨烯层和涂覆在石墨烯层上的电极活性材料层。由此获得的用于锂二次电池的石墨烯改性电极板由于石墨烯的更好的导电性和导热性而增加了电极板的导电性和耗散功能。本发明还提供一种锂二次电池用石墨烯涂层改性电极板的制造方法。

3. 发明授权

US09162894B2 Method for preparing graphene 有权
标题翻译：制备石墨烯的方法
公开(公告)号：US09162894B2
公开(公告)日：2015-10-20
申请号：US13577027
申请日：2011-04-28
申请人： Zhaoping Liu , Xufeng Zhou , Zhihong Qin , Changlin Tang
发明人： Zhaoping Liu , Xufeng Zhou , Zhihong Qin , Changlin Tang
IPC分类号： C01B31/04 , B82Y40/00 , B82Y30/00
CPC分类号： C01B31/0446 , B82Y30/00 , B82Y40/00 , C01B32/184 , Y10S977/842
摘要： The present invention provides a method for preparing graphene, including reacting graphite in an acid solution in which an oxidant is present so as to obtain a graphene. Compared with the prior art, the advantages of the present invention reside in that, the graphene prepared by the method of the present invention has excellent quality and substantially increased yield and production rate, as compared with mechanical stripping, epitaxial growth, and chemical vapor deposition; and the graphene prepared by the method of the present invention has significantly improved quality, substantially reduced structural defects, and significantly increased conductivity, as compared with oxidation-reduction preparation in the solution-phase; besides, the method is also advantageous for a simple process, mild conditions, low cost, and very easy for scale production. The graphene prepared by the present invention has very broad prospects in the fields of lithium-ion batteries, supercapacitors, functional composite materials, transparent conductive films, and microelectronic devices, etc.
摘要翻译：本发明提供一种制备石墨烯的方法，包括使石墨在存在氧化剂的酸溶液中反应以获得石墨烯。与现有技术相比，本发明的优点在于，与机械剥离，外延生长和化学气相沉积相比，通过本发明的方法制备的石墨烯具有优异的质量和显着提高的产率和生产率 ; 并且与溶液相中的氧化还原制备相比，通过本发明的方法制备的石墨烯具有显着提高的质量，显着降低的结构缺陷和显着增加的导电性; 此外，该方法对于简单的工艺，温和的条件，低成本和非常容易的规模生产也是有利的。本发明制备的石墨烯在锂离子电池，超级电容器，功能性复合材料，透明导电膜和微电子器件等领域具有非常广阔的前景。

4. 发明申请

US20140037531A1 METHOD FOR PREPARING GRAPHENE 有权
标题翻译：制备石墨的方法
公开(公告)号：US20140037531A1
公开(公告)日：2014-02-06
申请号：US13577027
申请日：2011-04-28
申请人： Zhaoping Liu , Xufeng Zhou , Zhihong Qin , Changlin Tang
发明人： Zhaoping Liu , Xufeng Zhou , Zhihong Qin , Changlin Tang
IPC分类号： C01B31/04
CPC分类号： C01B31/0446 , B82Y30/00 , B82Y40/00 , C01B32/184 , Y10S977/842
摘要： The present invention provides a method for preparing graphene, including reacting graphite in an acid solution in which an oxidant is present so as to obtain a graphene. Compared with the prior art, the advantages of the present invention reside in that, the graphene prepared by the method of the present invention has excellent quality and substantially increased yield and production rate, as compared with mechanical stripping, epitaxial growth, and chemical vapor deposition; and the graphene prepared by the method of the present invention has significantly improved quality, substantially reduced structural defects, and significantly increased conductivity, as compared with oxidation-reduction preparation in the solution-phase; besides, the method is also advantageous for a simple process, mild conditions, low cost, and very easy for scale production. The graphene prepared by the present invention has very broad prospects in the fields of lithium-ion batteries, supercapacitors, functional composite materials, transparent conductive films, and microelectronic devices, etc.
摘要翻译：本发明提供一种制备石墨烯的方法，包括使石墨在存在氧化剂的酸溶液中反应以获得石墨烯。与现有技术相比，本发明的优点在于，与机械剥离，外延生长和化学气相沉积相比，通过本发明的方法制备的石墨烯具有优异的质量和显着提高的产率和生产率 ; 并且与溶液相中的氧化还原制备相比，通过本发明的方法制备的石墨烯具有显着提高的质量，显着降低的结构缺陷和显着增加的导电性; 此外，该方法对于简单的工艺，温和的条件，低成本和非常容易的规模生产也是有利的。本发明制备的石墨烯在锂离子电池，超级电容器，功能性复合材料，透明导电膜和微电子器件等领域具有非常广阔的前景。

5. 发明申请

US20120315550A1 GRAPHENE-MODIFIED LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION OF THE SAME AND LITHIUM-ION SECONDARY CELL 审中-公开
标题翻译：石墨改性的锂铁磷酸盐阳极电极活性材料，其制备及锂离子二次电池
公开(公告)号：US20120315550A1
公开(公告)日：2012-12-13
申请号：US13515179
申请日：2010-01-22
申请人： Zhaoping Liu , Xufeng Zhou
发明人： Zhaoping Liu , Xufeng Zhou
IPC分类号： H01M4/131 , B02C23/00 , H01M10/0525 , H01M10/056 , B82Y40/00 , B82Y30/00
CPC分类号： C01B25/45 , H01M4/13 , H01M4/133 , H01M4/139 , H01M4/1393 , H01M4/5825 , H01M4/587 , H01M10/052
摘要： The invention relates to a graphene-modified lithium iron phosphate positive electrode active material and a method for preparing the same, as well as a lithium-ion secondary cell based on this positive electrode active material. The positive electrode active material is prepared by a method in which graphene or graphene oxide and lithium iron phosphate are dispersed in an aqueous solution, agitated and ultrasonicated to mix homogeneously and for a mixture, dried to obtain a lithium iron phosphate material compounded with graphene or graphene oxide, and annealed at high temperature to obtain finally a graphene-modified lithium iron phosphate positive electrode active material. When compared with conventional modified lithium cells coated with carbon or doped with conductive polymers, the lithium-ion secondary cell based on this positive electrode active material features high cell capacity, good cycling performance of charge and discharge, long life and high cycle stability, and has great utility value.
摘要翻译：本发明涉及石墨烯改性的磷酸铁锂正极活性物质及其制备方法，以及基于该正极活性物质的锂离子二次电池。正极活性物质是通过将石墨烯或氧化石墨烯和磷酸铁锂分散在水溶液中进行搅拌和超声波均匀混合并混合的方法制备的，干燥得到与石墨烯混合的磷酸铁锂材料或石墨烯氧化物，并在高温下退火以获得石墨烯改性的磷酸铁锂正极活性材料。与使用碳的传统改性锂电池或掺有导电聚合物相比，基于该正极活性物质的锂离子二次电池具有高电池容量，充放电良好的循环性能，长寿命和高循环稳定性，以及具有很大的实用价值。

6. 发明授权

US09954225B2 Positive electrode material for lithium battery, preparing method thereof and lithium battery 有权
公开(公告)号：US09954225B2
公开(公告)日：2018-04-24
申请号：US14119721
申请日：2011-05-23
申请人： Yonggao Xia , Zhaoping Liu , Yaletu Saixi
发明人： Yonggao Xia , Zhaoping Liu , Yaletu Saixi
IPC分类号： H01M4/505 , H01M4/131 , H01M4/36 , C01D15/02
CPC分类号： H01M4/505 , C01D15/02 , H01M4/131 , H01M4/364
摘要： Provided is a positive electrode material for a lithium battery with an atomic ratio expressed by the formula (I) Lia(MxMn2-x)(O4-yZy) for 0.8≤a≤1.2, 0≤x≤1 and 0≤y≤1 in which M is one or more of Li, Na, K, Ca, Mg, Al, Ti, Sc, Ge, V, Cr, Zr, Co, Ni, Zn, Cu, La, Ce, Mn, Hf, Nb, Ta, Mo, W, Ru, Ag, Sn, Pb and Si and Z is one or more of OH, halogens, N, P, S and O, and the primary particles of the positive electrode material have a spheroidal topography. The adjacent (111) family planes of the primary particles are connected by curved surfaces without obvious edges. A preparing method of a positive electrode material for a lithium battery and a lithium battery are also provided. The positive electrode material of the present invention provides a good high-temperature cycling performance and filling capability.

7. 外观设计

USD963150S1 Desktop fan 有权
公开(公告)号：USD963150S1
公开(公告)日：2022-09-06
申请号：US29760109
申请日：2020-11-30
申请人： Zhaoping Liu
设计人： Zhaoping Liu

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