公开(公告)号：US11710816B2

公开(公告)日：2023-07-25

申请号：US17020530

申请日：2020-09-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takayuki Nakatsutsumi ,  Ryuichi Natsui ,  Nobuhiko Hojo

IPC: H01M4/1315 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0568 ,  C01G51/00 ,  C01G45/00 ,  C01G53/00 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/02

CPC classification number: H01M4/1315 ,  C01G45/006 ,  C01G51/006 ,  C01G53/006 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  C01P2002/54 ,  C01P2002/76 ,  C01P2006/40 ,  H01M4/485 ,  H01M2004/028 ,  H01M2220/30 ,  H01M2300/004 ,  H01M2300/0034

Abstract: A battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolytic solution including a nonaqueous solvent. The positive electrode active material includes a compound having a crystal structure belonging to a space group FM3-M and represented by Compositional Formula (1): LixMeyOαFβ, where, Me is one or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, B, Ce, Si, Zr, Nb, Pr, Ti, W, Ge, Mo, Sn, Bi, Cu, Mg, Ca, Ba, Sr, Y, Zn, Ga, Er, La, Sm, Yb, V, and Cr; and subscripts x, y, α, and β satisfy the following requirements: 1.7≤x≤2.2, 0.8≤y≤1.3, 1≤α≤2.5, and 0.5≤β≤2. The nonaqueous solvent includes a solvent having at least one fluoro group.

公开(公告)号：US11271200B2

公开(公告)日：2022-03-08

申请号：US16558335

申请日：2019-09-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Kensuke Nakura ,  Junko Matsushita ,  Issei Ikeuchi

IPC: H01M4/50 ,  H01M4/505 ,  C01G53/00 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/02

Abstract: A positive-electrode active material contains a lithium composite oxide, wherein the lithium composite oxide is a multiphase mixture including a first phase, of which a crystal structure belongs to a space group Fm-3m, and a second phase, of which a crystal structure belongs to a space group Fd-3m; and in an XRD pattern of the lithium composite oxide, the integrated intensity ratio I(18°-20°)/I(43°-46°) of a first maximum peak I(18°-20°) within a first range of 18 degrees to 20 degrees at a diffraction angle 2θ to a second maximum peak I(43°-46°) within a second range of 43 degrees to 46 degrees at the diffraction angle 2θ satisfies 0.05≤I(18°-20°)/I(43°-46°)≤0.90.

公开(公告)号：US11081687B2

公开(公告)日：2021-08-03

申请号：US16293577

申请日：2019-03-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Junko Matsushita ,  Kensuke Nakura

IPC: H01M4/1315 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/525 ,  H01M10/0562 ,  C01B33/00 ,  C01G45/00 ,  C01B35/00 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0565 ,  H01M4/02

Abstract: A positive-electrode active material contains a compound represented by the following composition formula (1): LixMeyAzOαFβ  (1) where Me denotes one or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, Cu, Nb, Mo, Ti, Cr, Zr, Zn, Na, K, Ca, Mg, Pt, Au, Ru, and W, A denotes one or more elements selected from the group consisting of B, Si, and P, and the following conditions: 1.3≤x≤2.1, 0.8≤y≤1.3, 0

公开(公告)号：US09873099B2

公开(公告)日：2018-01-23

申请号：US15062951

申请日：2016-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi Honda ,  Kensuke Nakura ,  Ryuichi Natsui

IPC: F27B14/12 ,  F27D1/18 ,  B01J3/03 ,  B01J19/02

CPC classification number: B01J3/03 ,  B01J19/02 ,  B01J2219/0277 ,  B01J2219/0286 ,  B01J2219/029 ,  B01J2219/1227 ,  B01J2219/1242 ,  B01J2219/1293 ,  B01J2219/1296 ,  F24V30/00

Abstract: Heating reaction container comprises: a first member; a second member; and a third member. An opening is closed by the second member being detachably fitted in the first member and by the third member being detachably fitted in the second member. α1, α2, and α3 satisfy a relation of α3>α2>α1, α3=α2>α1, or α3>α2=α1, where α1 represents a thermal expansion coefficient of a first material of the first member, α2 represents a thermal expansion coefficient of a second material of the second member, and α3 represents a thermal expansion coefficient of a third material of the third member. A gap is present before heating, and a space is sealed, through the heating, by a first contact surface coming into intimate contact with a second contact surface and by a third contact surface coming into intimate contact with a fourth contact surface.

公开(公告)号：US12080872B2

公开(公告)日：2024-09-03

申请号：US17093552

申请日：2020-11-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Kensuke Nakura

IPC: H01M4/131 ,  C01G53/00 ,  H01M4/134 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/131 ,  C01G53/50 ,  H01M4/134 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01P2002/74 ,  H01M2004/028

Abstract: A positive electrode active material according to the present disclosure includes a lithium composite oxide that is a multiphase mixture including a first phase having a crystal structure belonging to a monoclinic crystal (e.g., space group C2/m), a second phase having a crystal structure belonging to a hexagonal crystal (e.g., space group R-3m), and a third phase having a crystal structure belonging to a cubic crystal (e.g., space group Fm-3m or space group Fd-3m). In addition, a battery according to an aspect of the present disclosure includes a positive electrode containing the positive electrode active material, a negative electrode, and an electrolyte. The positive electrode active material according to the present disclosure improves the capacity of the battery.

公开(公告)号：US11955630B2

公开(公告)日：2024-04-09

申请号：US17165953

申请日：2021-02-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takanori Omae ,  Ryuichi Natsui ,  Issei Ikeuchi ,  Kensuke Nakura

IPC: H01M4/505 ,  C01G45/12 ,  H01M4/02 ,  H01M10/0525

CPC classification number: H01M4/505 ,  C01G45/1228 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive electrode active material according to the present disclosure includes: a lithium composite oxide which includes Mn and at least one selected from the group consisting of F, Cl, and N, and S. The lithium composite oxide has a crystalline structure which belongs to the space group Fd-3m, and a relationship 1.40≤intensity ratio IMn1/IMn2≤1.90 is satisfied. The intensity ratio IMn1/IMn2 is a ratio of an intensity IMn1 to an intensity IMn2. The intensity IMn1 and the intensity IMn2 are intensities of a first proximity peak and a second proximity peak, respectively, of the Mn in a radial distribution function of the Mn included in the lithium composite oxide.

公开(公告)号：US11955622B2

公开(公告)日：2024-04-09

申请号：US17089670

申请日：2020-11-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Kensuke Nakura

IPC: H01M4/131 ,  C01G53/00 ,  H01M4/02 ,  H01M4/134 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/131 ,  C01G53/50 ,  H01M4/134 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01P2002/74 ,  H01M2004/027 ,  H01M2004/028

Abstract: A positive electrode active material according to the present disclosure includes a lithium composite oxide. The lithium composite oxide is a multiphase mixture including a first phase having a crystal structure belonging to space group C2/m and a second phase having a crystal structure belonging to space group R-3m and includes at least one selected from the group consisting of F, Cl, N, and S. In an XRD pattern of the lithium composite oxide, the integrated intensity ratio I(20°-23°)/I(18°-20°) of a second maximum peak present in a diffraction angle 2θ range of greater than or equal to 20° and less than or equal to 23° to a first maximum peak present in a diffraction angle 2θ range of greater than or equal to 18° and less than or equal to 20° satisfies 0.05≤I(20°-23°)/I(18°-20°)≤0.26.

公开(公告)号：US11637277B2

公开(公告)日：2023-04-25

申请号：US17028424

申请日：2020-09-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Ryuichi Natsui ,  Kensuke Nakura

IPC: H01M4/1315 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0566 ,  C01G51/00 ,  C01G45/00 ,  C01G53/00 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/02

Abstract: A positive-electrode active material containing a compound that has a crystal structure belonging to the space group FM-3M and is represented by the composition formula (1): LixMeyOαFβ  (1) wherein Me denotes one or two or more elements selected from the group consisting of Mn, Co, Ni, Fe, and Al, and the following conditions are satisfied.
1.3≤x≤2.2,
0.8≤y≤1.3,
1≤α≤2.93,
0.07≤β≤2.

公开(公告)号：US11605814B2

公开(公告)日：2023-03-14

申请号：US16683275

申请日：2019-11-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Kensuke Nakura ,  Junko Matsushita ,  Issei Ikeuchi

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/052 ,  H01M4/02 ,  C01D15/02 ,  H01M10/0566

Abstract: A positive-electrode active material contains a lithium composite oxide containing manganese. The crystal structure of the lithium composite oxide belongs to a space group Fd-3m. The integrated intensity ratio I(111)/I(400) of a first peak I(111) on the (111) plane to a second peak I(400) on the (400) plane in an XRD pattern of the lithium composite oxide satisfies 0.05≤I(111)/I(400)≤0.90.

公开(公告)号：US20230053476A1

公开(公告)日：2023-02-23

申请号：US17800357

申请日：2021-02-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youshin Lee ,  Ryuichi Natsui ,  Mitsuhiro Hibino ,  Kensuke Nakura

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/485 ,  H01M10/0525 ,  H01M50/46

Abstract: This positive-electrode active material for a non-aqueous electrolyte secondary battery contains a lithium and transition metal composite oxide represented by the composition formula: LixMnyNixGeaMbO2-cFc (where, M is at least one elements selected from Ti, Co, Si, Al, Nb, W, Mo, P, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Sr, Zr, Ru, K, and Bi; 1.0