公开(公告)号：US20150024266A1

公开(公告)日：2015-01-22

申请号：US14510495

申请日：2014-10-09

Applicant: LG Chem, Ltd.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh

IPC: H01M4/58 ,  C01B25/45 ,  H01M4/04 ,  H01M10/052

CPC classification number: H01M4/5825 ,  B82Y30/00 ,  C01B25/45 ,  C01G49/009 ,  C01P2002/30 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M4/626 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/30 ,  Y02P20/544

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a glycerol solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 10 bar to 100 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method and a supercritical hydrothermal synthesis method, a reaction may be performed under a relatively lower pressure. When compared to a common glycothermal synthesis method, a lithium iron phosphate nanopowder having effectively controlled particle size and particle size distribution may be easily prepared.

Abstract translation: 本发明涉及一种制备磷酸铁锂纳米粉末的方法，包括以下步骤：（a）通过在甘油溶剂中加入锂前体，铁前体和磷前体制备混合溶液，和（b）将 混合溶液加入到反应器中并加热以在10巴至100巴的压力条件下制备磷酸铁锂纳米粉末，并通过该方法制备磷酸铁锂纳米粉末。 当与常用的水热合成法和超临界水热合成法相比时，可以在相对较低的压力下进行反应。 当与普通的糖热合成方法相比时，可以容易地制备具有有效控制粒度和粒度分布的磷酸铁锂纳米粉末。

公开(公告)号：US20150236347A1

公开(公告)日：2015-08-20

申请号：US14421633

申请日：2014-01-09

Applicant: LG Chem, Ltd.

Inventor： Wook Jang ,  Seung Beom Cho ,  In Kook Jun

IPC: H01M4/52 ,  H01M4/04 ,  H01M4/583

CPC classification number: H01M4/521 ,  C01B25/45 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/583 ,  H01M2004/021

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder coated with carbon, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a glycol-based solvent, (b) putting the mixture solution into a reactor, heating and concentrating to prepare a metal glycolate slurry, (c) drying the metal glycolate slurry to form a solid content, and (d) firing the solid content to prepare the lithium iron phosphate nanopowder coated with carbon, and a lithium iron phosphate nanopowder coated with carbon prepared by the method.

Abstract translation: 本发明涉及一种制备涂覆有碳的磷酸铁锂纳米粉末的方法，包括以下步骤：（a）通过在二醇系溶剂中加入锂前体，铁前体和磷前体制备混合溶液（ b）将混合溶液放入反应器中，加热并浓缩以制备金属乙醇酸盐浆料，（c）干燥金属乙醇酸盐浆料以形成固体含量，和（d）焙烧固体含量以制备涂覆有磷酸铁锂的纳米粉末 用碳和通过该方法制备的涂覆有碳的磷酸铁锂纳米粉末。

公开(公告)号：US20150037666A1

公开(公告)日：2015-02-05

申请号：US14516810

申请日：2014-10-17

Applicant: LG Chem, Ltd.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh ,  Wook Jang

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/583 ,  H01M10/058 ,  H01M4/58 ,  H01M10/052

CPC classification number: H01M4/366 ,  C01B25/45 ,  C01G49/009 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/133 ,  H01M4/136 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/58 ,  H01M4/5825 ,  H01M4/583 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/058 ,  H01M2004/028 ,  H01M2220/30

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder coated with carbon, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, (b) putting the mixture solution into a reactor and reacting to prepare amorphous lithium iron phosphate nanoseed particle, and (c) heat treating the lithium iron phosphate nanoseed particle thus to prepare the lithium iron phosphate nanopowder coated with carbon on a portion or a whole of a surface of a particle, and a lithium iron phosphate nanopowder coated with carbon prepared by the above method. The lithium iron phosphate nanopowder coated with carbon having controlled particle size and particle size distribution may be prepared in a short time by performing two simple steps.

Abstract translation: 本发明涉及一种涂覆有碳的磷酸铁锂纳米粉末的制备方法，包括以下步骤：（a）通过在三乙醇胺溶剂中加入锂前体，铁前体和磷前体制备混合溶液，（b） 将混合溶液放入反应器中并反应制备无定形磷酸铁锂纳米颗粒，和（c）热处理磷酸铁锂纳米颗粒，从而制备在表面的一部分或全部涂覆有碳的磷酸铁锂纳米粉末 的颗粒，和通过上述方法制备的涂覆有碳的磷酸铁锂纳米粉末。 通过执行两个简单的步骤，可以在短时间内制备涂覆有具有受控粒度和粒度分布的碳的磷酸铁锂纳米粉末。

公开(公告)号：US20150030918A1

公开(公告)日：2015-01-29

申请号：US14510370

申请日：2014-10-09

Applicant: LG Chem, Ltd.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh

IPC: H01M4/58 ,  H01M4/36 ,  H01M10/052 ,  H01M4/1397 ,  H01M4/136 ,  C01B25/45 ,  H01M4/04

CPC classification number: H01M4/5825 ,  C01B25/45 ,  C01P2002/30 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/64 ,  H01M4/0402 ,  H01M4/136 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/028 ,  Y02P20/544 ,  Y10T428/2982

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a glycerol solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 bar to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.

Abstract translation: 本发明涉及一种制备磷酸铁锂纳米粉末的方法，包括以下步骤：（a）通过在甘油溶剂中加入锂前体，铁前体和磷前体制备混合溶液，和（b）将 混合溶液加入到反应器中并加热以在1巴至10巴的压力条件下制备磷酸铁锂纳米粉末，并通过该方法制备磷酸铁锂纳米粉末。 当与通常的水热合成法，超临界水热合成法和糖热合成法相比时，可以在相对较低的压力下进行反应。 因此，不需要高温/高压反应器，并且可以确保工艺安全性和经济可行性。 此外，可以容易地制备具有均匀粒度和有效控制粒度分布的磷酸铁锂纳米粉末。

公开(公告)号：US20150024271A1

公开(公告)日：2015-01-22

申请号：US14510472

申请日：2014-10-09

Applicant: LG CHEM, LTD.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh

IPC: H01M4/58 ,  H01M10/052 ,  C01B25/45 ,  H01M4/36

CPC classification number: H01M4/5825 ,  B82Y30/00 ,  C01B25/45 ,  C01G49/009 ,  C01P2002/30 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M4/626 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/30 ,  Y02P20/544

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 10 bar to 100 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method and a supercritical hydrothermal synthesis method, a reaction may be performed under a relatively lower pressure. When compared to a common glycothermal synthesis method, a lithium iron phosphate nanopowder having effectively controlled particle size and particle size distribution may be easily prepared.

Abstract translation: 本发明涉及一种制备磷酸铁锂纳米粉末的方法，包括以下步骤：（a）通过在三乙醇胺溶剂中加入锂前体，铁前体和磷前体制备混合溶液，和（b）将 混合溶液加入到反应器中并加热以在10巴至100巴的压力条件下制备磷酸铁锂纳米粉末，并通过该方法制备磷酸铁锂纳米粉末。 当与常用的水热合成法和超临界水热合成法相比时，可以在相对较低的压力下进行反应。 当与普通的糖热合成方法相比时，可以容易地制备具有有效控制粒度和粒度分布的磷酸铁锂纳米粉末。

公开(公告)号：US20150024265A1

公开(公告)日：2015-01-22

申请号：US14510356

申请日：2014-10-09

Applicant: LG Chem, Ltd.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/1397 ,  C01B25/45 ,  H01M4/58

CPC classification number: H01M4/5825 ,  C01B25/45 ,  C01P2002/30 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/64 ,  H01M4/0402 ,  H01M4/136 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/028 ,  Y02P20/544 ,  Y10T428/2982

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 bar to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.

Abstract translation: 本发明涉及一种制备磷酸铁锂纳米粉末的方法，包括以下步骤：（a）通过在三乙醇胺溶剂中加入锂前体，铁前体和磷前体制备混合溶液，和（b）将 混合溶液加入到反应器中并加热以在1巴至10巴的压力条件下制备磷酸铁锂纳米粉末，并通过该方法制备磷酸铁锂纳米粉末。 当与通常的水热合成法，超临界水热合成法和糖热合成法相比时，可以在相对较低的压力下进行反应。 因此，不需要高温/高压反应器，并且可以确保工艺安全性和经济可行性。 此外，可以容易地制备具有均匀粒度和有效控制粒度分布的磷酸铁锂纳米粉末。

公开(公告)号：US20180090782A1

公开(公告)日：2018-03-29

申请号：US15567228

申请日：2016-04-27

Applicant: LG Chem, Ltd.

Inventor： Ji Hoon Choi ,  In Kook Jun ,  Seung Beom Cho

IPC: H01M10/052 ,  H01M4/525 ,  H01M4/58 ,  H01M4/1391

CPC classification number: H01M10/052 ,  G01N23/20075 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M2004/027 ,  H01M2004/028

Abstract: The present invention relates to a positive electrode active material for a secondary battery, a method for preparing the same, and a secondary battery including the same, and more particularly to a positive electrode active material for a secondary battery, which includes lithium transition metal oxide particles represented by Formula 1; and lithium metal phosphate nanoparticles disposed on the surface of the lithium transition metal oxide particles and represented by Formula 2, a method for preparing the same, and a lithium secondary battery including the same. Li(1+a)(Ni1-b-cMbCoc)O2  [Formula 1] In which, M is at least one metal selected from the group consisting of Mn, Al, Cu, Fe, Mg, Cr, Sr, V, Sc and Y, 0≦a≦0.2, 0≦b≦1, and 0≦c≦1. Li1+xM′xM″2-x(PO4)3  [Formula 2] In which, M′ is Al, Y, Cr, or Ca, M″ is Ge, Ti, Sn, Hf, Zn, or Zr, and 0≦x≦0.5.

公开(公告)号：US09865875B2

公开(公告)日：2018-01-09

申请号：US14510370

申请日：2014-10-09

Applicant: LG Chem, Ltd.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh

IPC: H01M6/04 ,  H01M4/58 ,  H01M4/36 ,  C01B25/45 ,  H01M4/04 ,  H01M4/136 ,  H01M4/587 ,  H01M10/052 ,  H01M4/02 ,  H01M4/62

CPC classification number: H01M4/5825 ,  C01B25/45 ,  C01P2002/30 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/64 ,  H01M4/0402 ,  H01M4/136 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/028 ,  Y02P20/544 ,  Y10T428/2982

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a glycerol solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 bar to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.

公开(公告)号：US09627685B2

公开(公告)日：2017-04-18

申请号：US14429062

申请日：2014-01-09

Applicant: LG Chem, Ltd.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh

IPC: H01M4/13 ,  H01M4/58 ,  H01M4/00 ,  H01M4/82 ,  H01M6/00 ,  H01M4/36 ,  C01B25/45 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/04 ,  B82Y30/00 ,  C01G49/00 ,  H01M10/052 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M4/5825 ,  B82Y30/00 ,  C01B25/45 ,  C01G49/009 ,  C01P2002/30 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M4/626 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/30 ,  Y02P20/544

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a reaction solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 10 to 100 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method and a supercritical hydrothermal synthesis method, a reaction may be performed under a relatively lower pressure. When compared to a common glycothermal synthesis method, a lithium iron phosphate nanopowder having effectively controlled particle size and particle size distribution may be easily prepared.

公开(公告)号：US09543582B2

公开(公告)日：2017-01-10

申请号：US14510356

申请日：2014-10-09

Applicant: LG Chem, Ltd.

Inventor： In Kook Jun ,  Seung Beom Cho ,  Myoung Hwan Oh

IPC: C01B25/45 ,  H01M4/58 ,  H01M4/36 ,  H01M4/04 ,  H01M4/136 ,  H01M4/587 ,  H01M10/052 ,  H01M4/02 ,  H01M4/62

CPC classification number: H01M4/5825 ,  C01B25/45 ,  C01P2002/30 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/64 ,  H01M4/0402 ,  H01M4/136 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/028 ,  Y02P20/544 ,  Y10T428/2982

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 bar to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.

Abstract translation: 本发明涉及一种制备磷酸铁锂纳米粉末的方法，包括以下步骤：（a）通过在三乙醇胺溶剂中加入锂前体，铁前体和磷前体制备混合溶液，和（b）将 混合溶液加入到反应器中并加热以在1巴至10巴的压力条件下制备磷酸铁锂纳米粉末，并通过该方法制备磷酸铁锂纳米粉末。 当与通常的水热合成法，超临界水热合成法和糖热合成法相比时，可以在相对较低的压力下进行反应。 因此，不需要高温/高压反应器，并且可以确保工艺安全性和经济可行性。 此外，可以容易地制备具有均匀粒度和有效控制粒度分布的磷酸铁锂纳米粉末。