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1.发明公开
公开(公告)号：EP4456186A1
公开(公告)日：2024-10-30
申请号：EP22911776.7
申请日：2022-12-15
发明人： YOU, Seung Jae , WOO, Jung Gyu , CHO, Moonkyu , PARK, Sangeun , KIM, Yong Jung , PARK, Sun Jong , KANG, Eun-Tae , JO, Hyun-Chul
摘要： The present exemplary embodiments may provide a negative electrode material for a lithium secondary battery, the negative electrode material containing nano-silicon, crystalline carbon, amorphous carbon, and carbon nanotubes, wherein one end of the carbon nanotube is located inside the negative electrode material and the other end of the carbon nanotube protrudes out of the negative electrode material, and an average length of the carbon nanotubes protruding out of the negative electrode material is 0.1 µm to 1 µm.
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公开(公告)号：EP4266411A1
公开(公告)日：2023-10-25
申请号：EP21911496.4
申请日：2021-12-21
发明人： YOU, Seung Jae , PARK, Sun Jong , KANG, Eun-Tae , KIM, Yong Jung , WOO, Jung Gyu , CHO, Moonkyu , PARK, Sangeun
IPC分类号： H01M4/36 , H01M4/38 , H01M4/587 , H01M4/62 , H01M10/052
摘要： The present embodiments relate to a negative electrode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same.
The negative electrode active material for a lithium secondary battery, according to one embodiment, comprises a silicon-carbon composite comprising silicon nanoparticles and a carbon matrix, and can have a degree of oxidation that is less than or equal to 10.5%.-
公开(公告)号：EP4266406A1
公开(公告)日：2023-10-25
申请号：EP21907177.6
申请日：2021-12-17
发明人： CHO, Moonkyu , KIM, Yong Jung , WOO, Jung Gyu , YOU, Seung Jae , PARK, Sun Jong , KANG, Eun-Tae
IPC分类号： H01M4/36 , H01M4/587 , H01M4/62 , H01M4/38 , H01M10/052
摘要： The present disclosure includes a negative active material manufacturing method for lithium secondary battery, comprising:
grinding the metal-based material into metal-based material nanoparticles through a grinding process; obtaining spherical particles by spheronizing the pulverized metal-based material nanoparticle, a conductive material, and a conductive additive together; obtaining a composite by complexing the spherical particles with an amorphous carbon-based precursor material; and carbonizing the composite; the conductive additive is a carbon nanotube; a content of the carbon nanotube is 0.2 to 2.3 wt% compared to the metal-based material nanoparticle in the composite, a negative active material according to the method, and a secondary battery including the same.-
公开(公告)号：EP2617503B1
公开(公告)日：2016-10-26
申请号：EP11825448.1
申请日：2011-09-15
发明人： KIM, Ha Neul , LEE, Eon Sik , KWON, Oh Joon , PARK, Sun Jong , KANG, Hee soo
CPC分类号： B22F9/082 , B22F2009/0828 , B22F2009/0888 , C21C5/28 , Y02P10/216
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公开(公告)号：EP4456190A1
公开(公告)日：2024-10-30
申请号：EP22911769.2
申请日：2022-12-15
发明人： PARK, Sangeun , PARK, Sun Jong , KANG, Eun-Tae , KIM, Yong Jung , YOU, Seung Jae , WOO, Jung Gyu , CHO, Moonkyu
IPC分类号： H01M4/38 , C01B33/02 , H01M10/052
摘要： The present exemplary embodiments relate to a silicon-based negative electrode active material, a method of preparing the same, and a lithium secondary battery including the same. The silicon-based negative electrode active material according to an exemplary embodiment may have a particle size fraction D1 of 1 µm or more, a D99 of 20 µm or less, and a degree of oxidation of 0.3% to 3.0%.
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公开(公告)号：EP2617503A2
公开(公告)日：2013-07-24
申请号：EP11825448.1
申请日：2011-09-15
发明人： KIM, Ha Neul , LEE, Eon Sik , KWON, Oh Joon , PARK, Sun Jong , KANG, Hee soo
CPC分类号： B22F9/082 , B22F2009/0828 , B22F2009/0888 , C21C5/28 , Y02P10/216
摘要： Disclosed is a method of manufacturing iron-based powder using a molten steel. The method of manufacturing the iron-based powder according to the present invention includes providing an iron-based molten steel manufactured through a iron making process and a steelmaking process to a tundish; and performing water atomization over the molten steel discharged through a nozzle connected to the tundish. The iron-based powder is manufactured from the molten steel refined after a molten iron tapped from a iron making process is charged into a converter without a pre-treatment process of the molten iron by applying the present invention, thus economically providing the highly clean iron-based powder.
摘要翻译： 公开了使用钢水制造铁基粉末的方法。 根据本发明的铁基粉末的制造方法包括：通过炼铁工艺和炼钢工艺制造的铁基钢水到中间包; 并在通过与中间包连接的喷嘴排出的钢水上进行水雾化。 铁基粉末由在炼铁过程中铁浸的铁水通过应用本发明而不用铁水的预处理而被加入到转炉中的钢水中制造，从而经济地提供高度清洁的铁 的粉末。
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