公开(公告)号：US20140203218A1

公开(公告)日：2014-07-24

申请号：US14223344

申请日：2014-03-24

Applicant: SHOWA DENKO K.K.

Inventor： Akihisa TONEGAWA ,  Akihiko SHIRAKAWA ,  Isao KABE ,  Gaku ORIJI

IPC: C01B25/45 ,  H01M4/1397 ,  H01M4/04

CPC classification number: C01B25/45 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/5825

Abstract: A method is employed for producing a positive electrode active material for a lithium secondary battery that comprises mixing lithium phosphate having a particle diameter D90 of 100 μm or less, an M element-containing compound having a particle diameter D90 of 100 μm or less (where, M is one type or two or more types of elements selected from the group consisting of Mg, Ca, Fe, Mn, Ni, Co, Zn, Ge, Cu, Cr, Ti, Sr, Ba, Sc, Y, Al, Ga, In, Si, B and rare earth elements) and water, adjusting the concentration of the M element with respect to water to 4 moles/L or more to obtain a raw material, and producing olivine-type LiMPO4 by carrying out hydrothermal synthesis using the raw material.

Abstract translation: 制造锂二次电池用正极活性物质的方法是将粒径D90为100μm以下的磷酸锂与粒径D90为100μm以下的M元素化合物混合（其中， M是从Mg，Ca，Fe，Mn，Ni，Co，Zn，Ge，Cu，Cr，Ti，Sr，Ba，Sc，Y，Al中选出的一种或两种以上的元素， Ga，In，Si，B和稀土元素）和水，将M元素相对于水的浓度调节至4摩尔/ L以上，得到原料，通过进行水热合成来制造橄榄石型LiMPO 4 使用原料。

公开(公告)号：US20130251997A1

公开(公告)日：2013-09-26

申请号：US13895412

申请日：2013-05-16

Applicant: SHOWA DENKO K.K.

Inventor： Akihiko SHIRAKAWA ,  Hitoshi YOKOUCHI

IPC: C01F11/02

CPC classification number: C01F11/02 ,  B82Y30/00 ,  C01G23/003 ,  C01G23/006 ,  C01P2002/34 ,  C01P2002/77 ,  C01P2002/82 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/13 ,  C01P2006/40 ,  C04B35/4682 ,  C04B35/4684 ,  C04B35/624 ,  C04B35/62605 ,  C04B35/62645 ,  C04B35/62675 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3293 ,  C04B2235/3298 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/3436 ,  C04B2235/449 ,  C04B2235/5409 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/6582 ,  C04B2235/72 ,  C04B2235/761 ,  C04B2235/768 ,  H01G4/1227 ,  H01L41/1871 ,  Y10T428/2982

Abstract: A process for producing a single crystal barium titanate including reacting a titanium oxide sol obtained by a wet process and a water-soluble barium compound under the presence of a basic compound in an aqueous reaction mixture at a pH of at least 11 to form a slurry containing barium titanate. The aqueous reaction mixture is subjected to a solid-liquid separation to separate the barium titanate from the slurry. The basic compound is removed as a gas from the barium titanate, and the barium titanate is fired at 300-1200° C.

Abstract translation: 一种制造单晶钛酸钡的方法，其包括在碱性化合物的存在下，在水性反应混合物中，在至少11的pH下使通过湿法制得的氧化钛溶胶与水溶性钡化合物反应，形成浆料 含钛酸钡。 对含水反应混合物进行固液分离，从而将钛酸钡与浆料分离。 将碱性化合物作为气体从钛酸钡中除去，钛酸钡在300-1200℃下烧成。

公开(公告)号：US20140199475A1

公开(公告)日：2014-07-17

申请号：US14217995

申请日：2014-03-18

Applicant: SHOWA DENKO K.K.

Inventor： Akihisa TONEGAWA ,  Akihiko SHIRAKAWA ,  Isao KABE ,  Gaku ORIJI

IPC: C01B25/16

CPC classification number: C01B25/16 ,  H01M4/0471 ,  H01M4/139 ,  H01M4/366 ,  H01M4/5825 ,  H01M10/052 ,  Y02P20/134

Abstract: A positive electrode active material for a lithium secondary battery having a core portion and a shell layer is employed in which the core portion is represented by Lix1M1y1Pz1O4 (where, M1 represents an element such as Mg, Ca, Fe or Mn, and the letters x1, y1 and z1 representing composition ratios are respectively such that 0

Abstract translation: 使用具有芯部和壳层的锂二次电池用正极活性物质，其中芯部由Lix1M1y1Pz1O4表示（其中，M1表示Mg，Ca，Fe或Mn等元素，字母x1 ，表示组成比的y1和z1分别使得0