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：US20180347068A1

公开(公告)日：2018-12-06

申请号：US16057982

申请日：2018-08-08

Applicant: TODA KOGYO CORPORATION

Inventor： Hiroyasu WATANABE ,  Daisuke MORITA ,  Manabu YAMAMOTO ,  Kazumichi KOGA ,  Akihisa KAJIYAMA ,  Hiroaki MASUKUNI ,  Hideaki SADAMURA ,  Ryuta MASAKI ,  Kazutoshi MATSUMOTO

IPC: C30B1/10 ,  C30B1/02

CPC classification number: C30B1/10 ,  C01G45/1242 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/80 ,  C30B1/02 ,  H01M4/505 ,  H01M4/525 ,  Y10T428/2982

Abstract: The present invention provides a precursor of positive electrode active substance particles for non-aqueous electrolyte secondary batteries which have a high discharge voltage and a high discharge capacity, hardly suffer from side reactions with an electrolyte solution, and are excellent in cycle characteristics, positive electrode active substance particles for non-aqueous electrolyte secondary batteries, and processes for producing these particles, and a non-aqueous electrolyte secondary battery. The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries having a spinel structure with a composition represented by the following chemical formula (1), in which the positive electrode active substance particles satisfy the following characteristic (A) and/or characteristic (B) when indexed with Fd-3m in X-ray diffraction thereof: (A) when indexed with Fd-3m in X-ray diffraction of the positive electrode active substance particles, a ratio of I(311) to I(111) [I(311)/I(111)] is in the range of 35 to 43%, and/or (B) when indexed with Fd-3m in X-ray diffraction of the positive electrode active substance particles, a gradient of a straight line determined by a least square method in a graph prepared by plotting sin θ in an abscissa thereof and B cos θ in an ordinate thereof wherein B is a full-width at half maximum with respect to each peak position 2θ (10 to 90°) is in the range of 3.0×10−4 to 20.0×10−4; and Li1+xMn2-y-zNiyMzO4  Chemical Formula (1) wherein x, y, z fall within the range of −0.05·x·0.15, 0.4·y·0.6 and 0·z·0.20, respectively; and M is at least one element selected from the group consisting of Mg, Al, Si, Ca, Ti, Co, Zn, Sb, Ba, W and Bi.