公开(公告)号：US10056612B2

公开(公告)日：2018-08-21

申请号：US15147023

申请日：2016-05-05

Applicant: TODA KOGYO CORPORATION

Inventor： Kazumichi Koga ,  Masayuki Uegami ,  Hiroaki Masukuni ,  Kazutoshi Matsumoto ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

IPC: H01B1/08 ,  H01M4/505 ,  H01M4/04 ,  H01M4/485 ,  C01G45/02 ,  C01G45/12 ,  H01M10/0525 ,  H01M4/46

CPC classification number: H01M4/505 ,  C01G45/02 ,  C01G45/1242 ,  C01P2002/52 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/80 ,  H01B1/08 ,  H01M4/0471 ,  H01M4/46 ,  H01M4/485 ,  H01M10/0525

Abstract: This invention provides lithium manganate which has a high output and is excellent in high-temperature stability. This invention relates to lithium manganate particles which are produced by mixing a lithium compound, a manganese compound, a Y compound and an A compound and then calcining the resulting mixture, and have a composition represented by the following chemical formula 1 and an average secondary particle diameter (D50) of 1 to 15 μm, in which Y is at least one element selected from the group consisting of Al and Mg; A is a sintering aid element having a melting point of not higher than 850° C.; x and y satisfy 0.03≤x≤0.15 and 0≤y≤0.20, respectively; z is in the range of 0 to 2.5 mol % based on Mn, wherein the lithium manganate particles have a sulfur content of not more than 100 ppm. Li1+xMn2-x-yYyO4zA  (Chemical Formula 1)

公开(公告)号：US08821766B2

公开(公告)日：2014-09-02

申请号：US13787863

申请日：2013-03-07

Applicant: Toda Kogyo Corporation

Inventor： Masayuki Uegami ,  Akihisa Kajiyama ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

IPC: H01B1/02 ,  H01M4/13 ,  H01M4/50 ,  H01M4/58 ,  C01G51/04 ,  C01D1/02 ,  C01G45/12 ,  C01F7/00 ,  C01F11/02 ,  H01M4/505 ,  H01M10/0525 ,  C01G51/00 ,  H01M4/525

CPC classification number: H01M4/505 ,  C01G45/1242 ,  C01G51/54 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/525 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T428/2982

Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D50) of kinetic particles of not less than 1 μm and not more than 10 μm, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2-x-yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.

Abstract translation: 本发明的目的在于提供具有高输出和优异的高温稳定性的锰酸锂。 上述目的可以通过一次粒径不小于1μm的锰酸锂颗粒和动态颗粒的平均粒径（D50）不小于1μm且不大于10μm，其基本上在 具有由以下化学式表示的组成的Li1 + xMn2-x-yYyO4，其中Y是选自Al，Mg和Co中的至少一种元素; x和y分别满足0.03＆nlE; x＆lt; ll; 0.15和0.05＆amp; nlE; y＆nlE; 0.20，其中Y元素均匀分散在各个颗粒内，并且I（400）/ I（111）的强度比不小于 （440）/ I（111）的强度比不小于16％。