公开(公告)号：US20180069236A1

公开(公告)日：2018-03-08

申请号：US15551853

申请日：2016-02-09

Applicant: NEC Corporation ,  Tanaka Chemical Corporation

Inventor： Ryota YUGE ,  Noriyuki TAMURA ,  Sadanori HATTORI ,  Mitsuharu TABUCHI ,  Kentaro KURATANI ,  Kyousuke DOUMAE ,  Hideka SHIBUYA

IPC: H01M4/36 ,  C01G53/00 ,  C01F17/00 ,  H01M4/525 ,  H01M4/505 ,  H01M4/48 ,  H01M10/0525

CPC classification number: H01M4/366 ,  C01F17/0043 ,  C01G53/44 ,  C01G53/50 ,  C01P2002/70 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/483 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  Y02T10/7011

Abstract: There is provided a lithium-iron-manganese-based composite oxide capable of providing a lithium-ion secondary battery which has a high capacity retention rate in charge/discharge cycles and in which the generation of a gas caused by charge/discharge cycles is suppressed. A lithium-iron-manganese-based composite oxide having a layered rock-salt structure, wherein at least a part of the surface of a lithium-iron-manganese-based composite oxide represented by the following formula is coated with an oxide of at least one metal selected from the group consisting of La, Pr, Nd, Sm and Eu: LixM1(y-p)MnpM2(z-q)FeqO(2-δ) wherein 1.05≦x≦1.32, 0.33≦y≦0.63, 0.06≦z≦0.50, 0

公开(公告)号：US20160218360A1

公开(公告)日：2016-07-28

申请号：US14913892

申请日：2014-08-19

Applicant: NEC CORPORATION ,  TANAKA CHEMICAL CORPORATION

Inventor： Kentaro NAKAHARA ,  Ryota YUGE ,  Noriyuki TAMURA ,  Sadanori HATTORI ,  Kentaro KURATANI ,  Kyousuke DOUMAE ,  Hideka SHIBUYA ,  Mitsuharu TABUCHI

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  Y02T10/7011

Abstract: There is provided a lithium-iron-manganese-based composite oxide capable of providing a lithium-ion secondary battery which has a high capacity retention rate in charge/discharge cycles and in which the generation of a gas caused by charge/discharge cycles is reduced. A lithium-iron-manganese-based composite oxide having a layered rock-salt structure, wherein at least a part of the surface of a lithium-iron-manganese-based composite oxide represented by the following formula (1) is coated with an inorganic material: LixM1(y-p)MnpM2(z-p)FeqO(2-δ) (1) (wherein 1.05≦x≦1.32, 0.33≦y≦0.63, 0.06≦z≦0.50, 0

Abstract translation: 提供一种锂 - 铁 - 锰基复合氧化物，其能够提供在充电/放电循环中具有高容量保持率的锂离子二次电池，并且其中由充电/放电循环引起的气体的产生减少 。 一种具有层状岩盐结构的锂 - 铁 - 锰基复合氧化物，其中由下式（1）表示的锂 - 铁 - 锰基复合氧化物的至少一部分表面被无机 材料：LixM1（yp）MnpM2（zp）FeqO（2-δ）（1）（其中1.05≤x≤1.32,0.33≤y≤0.63,0.06≤z≤0.50,0≤p≤0.63,0.06≤q≤0.50 ，0≤δ≤0.80，y≥p，z≥q; M1为选自Ti和Zr中的至少一种元素; M2为选自Co，Ni和Mn中的至少一种元素）。

公开(公告)号：US20200006768A1

公开(公告)日：2020-01-02

申请号：US16482126

申请日：2018-01-31

Applicant: NEC CORPORATION

Inventor： Ryota YUGE ,  Mitsuharu TABUCHI ,  Kyousuke DOUMAE ,  Hideka SHIBUYA

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  C01G53/00

Abstract: A lithium-manganese composite oxide containing a lithium-iron-manganese composite oxide represented by the composition formula: Li1+x−w(FeyNizMn1−y−z)1−xO2−δ, where 0