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1. 发明申请

US20150203354A1 METHOD FOR PREPARING NANO-SIZED IRON PHOSPHATE PARTICLES 审中-公开
标题翻译：制备纳米尺寸磷酸铁锂颗粒的方法
公开(公告)号：US20150203354A1
公开(公告)日：2015-07-23
申请号：US14419607
申请日：2013-05-13
申请人： SAMSUNG FINE CHEMICALS CO., LTD , NANOMATERIALS TECHNOLOGY PTE LTD
发明人： Hyun A Song , Dong Gyu Chang , Woo Young Yang , Wei Kian Soh , Zhigang Shen , Jiyao Zhang , Lingyan Gao
IPC分类号： C01B25/37
CPC分类号： C01B25/375 , B82Y30/00 , B82Y40/00 , C01P2002/72 , C01P2004/03 , C01P2004/64
摘要： The present invention relates to a method for preparing nano-sized iron phosphate particles, the method including the steps of: mixing an iron salt solution and a phosphate solution in a reactor in order to prepare a suspension containing amorphous or crystalline iron phosphate precipitate; and applying a shearing force to the mixed solution inside the reactor during the step of mixing, wherein the suspension containing nano-sized iron phosphate precipitate particles is formed by means of the shearing force and the conditions inside the reactor. According to the present invention, micro-mixing takes place faster than nucleation, which provides an advantage for preparing nanoparticles and for preparing particles having a uniform particle size distribution.
摘要翻译：本发明涉及一种制备纳米尺寸磷酸铁颗粒的方法，所述方法包括以下步骤：在反应器中混合铁盐溶液和磷酸盐溶液，以制备含有无定形或结晶磷酸铁沉淀物的悬浮液; 以及在混合步骤期间对反应器内的混合溶液施加剪切力，其中通过剪切力和反应器内部的条件形成含有纳米尺寸的磷酸铁沉淀颗粒的悬浮液。根据本发明，微混合比成核更快，这为制备纳米颗粒和制备具有均匀粒度分布的颗粒提供了一个优点。

2. 发明申请

US20140319413A1 CRYSTALLINE IRON PHOSPHATE DOPED WITH METAL, METHOD OF PREPARING THE SAME, AND LITHIUM COMPOSITE METAL PHOSPHATE PREPARED THEREFROM 有权
标题翻译：用金属掺杂的晶体铁磷酸盐，其制备方法和其制备的锂复合金属磷酸盐
公开(公告)号：US20140319413A1
公开(公告)日：2014-10-30
申请号：US14360338
申请日：2012-12-14
申请人： SAMSUNG FINE CHEMICALS CO., LTD
发明人： Hyun A Song , Woo Young Yang
IPC分类号： H01M4/58 , C01B25/45
CPC分类号： H01M4/5825 , C01B25/26 , C01B25/375 , C01B25/45 , C01P2002/54 , C01P2002/72 , C01P2004/03 , H01M10/052
摘要： Provided are a crystalline iron phosphate doped with metals (MFePO4), which is used as a precursor of olivine-structured LiMFePO4 (LMFP) used as a cathode active material for lithium secondary batteries, and a method of preparing the crystalline iron phosphate, in which a crystalline iron phosphate doped with metals has the following Formula I obtained by crystallizing amorphous iron phosphate and doping the latter with a different type of a metal. Formula I: MFePO4, where M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, Mg, and B. The preparation of olivine-structured LMFP, which is used as a cathode active material for lithium secondary batteries, using the crystalline iron phosphate doped with metals as a precursor can increase efficiency and reduce processing costs as compared to another method of preparing the same by mixing different types of metals in a solid state.
摘要翻译：提供了作为用作锂二次电池的正极活性物质的橄榄石结构的LiMFePO 4（LMFP）的前体的金属（MFePO 4）的结晶性磷酸铁，以及磷酸结晶铁的制造方法，其中，掺杂有金属的结晶磷酸铁具有通过使非晶磷酸铁结晶并用不同类型的金属掺杂而获得的下式I。式I：MFePO4，其中M选自Ni，Co，Mn，Cr，Zr，Nb，Cu，V，Ti，Zn，Al，Ga，Mg和B.组成的橄榄石结构的LMFP 作为锂二次电池的正极活性物质，使用掺杂有金属的结晶性磷酸铁作为前体的锂二次电池的正极活性物质与其它制备方法相比可提高效率并降低加工成本，州。

3. 发明申请

US20150210546A1 METHOD FOR PREPARING LITHIUM METAL PHOSPHOR OXIDE 审中-公开
标题翻译：制备锂金属磷酸氧化物的方法
公开(公告)号：US20150210546A1
公开(公告)日：2015-07-30
申请号：US14419289
申请日：2013-05-10
申请人： SAMSUNG FINE CHEMICALS CO., LTD
发明人： Hyun A Song , Dong Gyu Chang , Woo Young Yang
IPC分类号： C01B25/45
摘要： The present invention relates to a method for preparing a lithium metal phosphor oxide, the method including: mixing an iron salt solution and a phosphate solution in a reactor; applying a shearing force to the mixed solution in the reactor during the mixing to form a suspension containing nano-sized iron phosphate precipitate particles; obtaining the nano-sized iron phosphate particles from the suspension; and mixing the iron phosphate with a lithium raw material and performing firing, and the lithium metal phosphor oxide according to the present invention has an Equation of LiMnFePO4. Herein, M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, and Mg, and n is in a range of 0 to 1. According to the present invention, since calcination is performed at a temperature that is lower than that of another existing method, there is an effect of reducing a process cost, and the obtained lithium metal phosphor oxide prepared according to the method of the present invention has an olivine structure type.
摘要翻译：本发明涉及一种制备锂金属磷光体的方法，该方法包括：在反应器中混合铁盐溶液和磷酸盐溶液; 在混合期间对反应器中的混合溶液施加剪切力以形成含有纳米尺寸磷酸铁沉淀颗粒的悬浮液; 从悬浮液中获得纳米尺寸的磷酸铁颗粒; 并将磷酸铁与锂原料混合并进行焙烧，根据本发明的锂金属荧光体具有LiMnFePO4的方程式。这里，M选自Ni，Co，Mn，Cr，Zr，Nb，Cu，V，Ti，Zn，Al，Ga和Mg，n在0〜1的范围内。在本发明中，由于在低于另一现有方法的温度下进行煅烧，所以具有降低加工成本的效果，所得到的根据本发明方法制备的锂金属荧光体具有橄榄石结构类型。

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