公开(公告)号：US10886529B2

公开(公告)日：2021-01-05

申请号：US16214208

申请日：2018-12-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takayuki Ishikawa ,  Ryuichi Natsui ,  Issei Ikeuchi ,  Kensuke Nakura

IPC: H01M4/00 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/48 ,  H01M10/0525 ,  C01G45/12 ,  H01M4/62 ,  C01G53/00 ,  C01G51/00 ,  H01M4/02

Abstract: A positive electrode active material includes a lithium composite oxide and a covering material that covers a surface of the lithium composite oxide. The covering material has an electron conductivity of 106 S/m or less. The lithium composite oxide is a multiphase mixture including a first phase having a first crystal structure that belongs to a space group Fm-3m and a second phase having a second crystal structure that belongs to a space group other than a space group Fm-3m. The ratio I(18°-20°)/I(43°-46°) of a first integrated intensity I(18°-20°) of a first maximum peak present at a first diffraction angle 2θ of 18° or more and 20° or less to a second integrated intensity I(43°-46°) of a second maximum peak present at a second diffraction angle 2θ of 43° or more and 46° or less in an XRD pattern of the lithium composite oxide satisfies 0.05≤I(18°-20°)/I(43°-46°)≤0.90.

公开(公告)号：US10833322B2

公开(公告)日：2020-11-10

申请号：US15844626

申请日：2017-12-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Kensuke Nakura

IPC: H01M4/36 ,  H01M10/0562 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/62 ,  H01M4/505 ,  H01M4/02 ,  H01M4/525 ,  H01M4/1315

Abstract: A positive electrode active material contains a lithium composite oxide and a lithium composite oxyfluoride. The lithium composite oxyfluoride covers at least part of the surface of the lithium composite oxide. The lithium composite oxyfluoride is represented by a composition formula LiαMe2βOγFδ, where Me2 represents at least one selected from the group consisting of Mn, Co, Ni, Fe, Al, Cu, V, Nb, Mo, Ti, Cr, Zr, Zn, Na, K, Ca, Mg, Pt, Au, Ru, and W; and 1.0≤α≤2.1; 0.8≤β≤1.3; 1.5≤γ≤2.9; and 0.1≤δ≤1.5. The crystal structure of the lithium composite oxyfluoride belongs to space group Fm-3m.

公开(公告)号：US10700380B2

公开(公告)日：2020-06-30

申请号：US16004439

申请日：2018-06-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Kano ,  Hirotetsu Suzuki ,  Junichi Sakamoto ,  Kensuke Nakura

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/052 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/02

Abstract: A lithium secondary battery includes a positive electrode, a negative electrode on which a lithium metal is deposited in a charged state, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte containing a nonaqueous solvent and a lithium salt containing a carborane anion.

公开(公告)号：US10651462B2

公开(公告)日：2020-05-12

申请号：US16039305

申请日：2018-07-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takayuki Ishikawa ,  Ryuichi Natsui ,  Kensuke Nakura

IPC: H01M4/00 ,  H01M4/36 ,  H01M4/505 ,  H01M4/58 ,  H01M4/525 ,  H01M4/485 ,  C01G45/12 ,  C01G51/00 ,  H01M4/62 ,  C01G53/00 ,  H01M4/02 ,  H01M10/0525

Abstract: A positive electrode active material contains a lithium composite oxide and a covering material. The lithium composite oxide contains at least one element selected from the group consisting of fluorine, chlorine, nitrogen, and sulfur. The lithium composite oxide has a crystal structure that belongs to space group C2/m. The ratio I(003)/I(104) of a first integrated intensity I(003) of a first peak corresponding to a (003) plane to a second integrated intensity I(104) of a second peak corresponding to a (104) plane in an XRD pattern of the lithium composite oxide satisfies 0.05≤I(003)/I(104)≤0.90. The covering material has an electron conductivity of 106 S/m or less.

公开(公告)号：US10403891B2

公开(公告)日：2019-09-03

申请号：US15003163

申请日：2016-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuko Asano ,  Kensuke Nakura

IPC: H01M4/485 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00 ,  H01M4/04 ,  H01M4/1391 ,  H01M10/0525 ,  H01M10/0569

Abstract: A positive electrode material includes an active material represented by Li2Mn(1−2x)NixMoxO3 (where 0

公开(公告)号：US20240021813A1

公开(公告)日：2024-01-18

申请号：US18267359

申请日：2021-12-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shogo Esaki ,  Ryuichi Natsui ,  Junko Matsushita ,  Mitsuhiro Hibino ,  Kensuke Nakura

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M4/582 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525 ,  H01M2004/027

Abstract: A positive electrode active material for nonaqueous electrolyte secondary batteries according to one embodiment of the present invention contains a lithium transition metal composite oxide which is represented by composition formula LixMnyNizTiaMbO2-cFc (wherein M represents at least one element that is selected from among P, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, Bi and Al; 1.0

公开(公告)号：US20230402594A1

公开(公告)日：2023-12-14

申请号：US18028364

申请日：2021-09-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Junko Matsushita ,  Mitsuhiro Hibino ,  Kensuke Nakura

IPC: H01M4/505 ,  H01M4/1315 ,  H01M4/525 ,  C01G53/00

CPC classification number: H01M4/505 ,  H01M4/1315 ,  H01M2004/028 ,  C01G53/50 ,  H01M4/525

Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide that is represented by composition formula LixMnyNizPaMbO2-cFc(wherein M represents at least one element that is selected from among Ti, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K and Bi; 1.0

公开(公告)号：US20230378451A1

公开(公告)日：2023-11-23

申请号：US18029213

申请日：2021-09-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jin Zhang ,  Issei Ikeuchi ,  Mitsuhiro Hibino ,  Kensuke Nakura

IPC: H01M4/505 ,  C01G45/12

CPC classification number: H01M4/505 ,  C01G45/1214 ,  H01M2004/028

Abstract: A positive electrode active material for a secondary battery includes a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, wherein the lithium metal composite oxide includes Cu and a transition metal element M1 other than Li and Cu. The lithium metal composite oxide is preferably represented by a composition formula LiaMnbCucA2dO2-eFe (where A2 is at least one element excluding Li, Mn, Cu, O, and F, and 0

公开(公告)号：US20230082835A1

公开(公告)日：2023-03-16

申请号：US17800359

申请日：2021-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

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

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: LixMnyNizSraMbO2-cFc (where, M is at least two elements selected from Ti, Co, Si, Al, Nb, W, Mo, P, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, and Bi; 1.0

公开(公告)号：US20230045802A1

公开(公告)日：2023-02-16

申请号：US17792962

申请日：2021-01-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jin Zhang ,  Issei Ikeuchi ,  Mitsuhiro Hibino ,  Kensuke Nakura

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

Abstract: This positive electrode active substance for a non-aqueous electrolyte secondary battery contains a lithium-transition metal composite oxide which has a crystal structure belonging to the space group Fm-3m and is represented by the compositional formula LixMnyMaObFc (in the formula: M is at least one type of metal element excluding Mn; x+y+a=b+c=2; 1