公开(公告)号：US20160248089A1

公开(公告)日：2016-08-25

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: H01M4/505 ,  C01G45/12 ,  H01M10/0525

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)

Abstract translation: 本发明提供了高产出，高温稳定性优异的锰酸锂。 本发明涉及通过混合锂化合物，锰化合物，Y化合物和A化合物然后煅烧所得混合物而制备的锰酸锂颗粒，并且具有由以下化学式1表示的组成和平均二次颗粒 直径（D50）为1〜15μm，其中Y为选自Al和Mg中的至少一种元素; A是熔点不高于850℃的烧结助剂元素; x和y分别满足0.03≤x≤0.15且0≤y≤0.20; z在Mn的范围内为0〜2.5摩尔％，其中，锰酸锂颗粒的硫含量不大于100ppm。 Li1 + xMn2-x-yYyO4zA（化学式1）

公开(公告)号：US20130183587A1

公开(公告)日：2013-07-18

申请号：US13787863

申请日：2013-03-07

Applicant: TODA KOGYO CORPORATION

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

IPC: H01M4/505

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和不大于10μm来实现，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 @ x @ 0.15和0.05 @ y @ 0.20，其中Y元素均匀分散在各个颗粒内，其I（400）/ I（111）的强度比不小于33 ％，I（440）/ I（111）的强度比不小于16％。