公开(公告)号：US20240379952A1

公开(公告)日：2024-11-14

申请号：US18686562

申请日：2022-08-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jin Zhang ,  Shogo Esaki ,  Mitsuhiro Hibino ,  Kensuke Nakura

IPC: H01M4/505 ,  C01G45/00 ,  H01M4/02

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. The lithium metal composite oxide contains a first metal element other than Li, and a second metal element other than Li and the first metal element. The first metal element is at least one selected from the group consisting of Gd, Ce, Eu, Sm, and Yb.

公开(公告)号：US11901593B2

公开(公告)日：2024-02-13

申请号：US17378769

申请日：2021-07-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masako Yokoyama ,  Masahisa Fujimoto ,  Mitsuhiro Hibino

IPC: H01M12/02 ,  H01M12/06 ,  H01M8/043 ,  H01M12/08 ,  H01M50/691 ,  H01M50/609 ,  H01M10/44

CPC classification number: H01M8/043 ,  H01M10/44 ,  H01M12/08 ,  H01M50/609 ,  H01M50/691

Abstract: A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.

公开(公告)号：US20230163285A1

公开(公告)日：2023-05-25

申请号：US17915055

申请日：2021-03-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Nanami Takeda ,  Yukihiro Oki ,  Kazuko Asano ,  Mitsuhiro Hibino

IPC: H01M4/38 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/387 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/027

Abstract: This lithium ion battery comprises a positive electrode having a positive electrode mixture layer that contains a positive electrode active material, and a negative electrode having a negative electrode mixture layer that contains a negative electrode active material; and this lithium ion battery is charged and discharged by the movement of lithium ions between the positive electrode and the negative electrode. The negative electrode mixture layer contains a negative electrode active material that is represented by general formula M3Me2X7 (wherein M contains at least one element of La, Ce, Ba, Sr, Zr, Ca, Mg and Y; Me contains at least one element of Ti, V, Cr, Nb, Mn, Ni, Fe, Co and Cu; and X contains at least one element of Ge, Si, Sn, Al, P, Sb and B), and a binder that contains ammonium carboxymethyl cellulose (NH4—CMC).

公开(公告)号：US20230071814A1

公开(公告)日：2023-03-09

申请号：US17799064

申请日：2021-02-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akiko Murata ,  Hiroshi Kawada ,  Mitsuhiro Hibino

IPC: H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  H01M4/36 ,  H01M10/052

Abstract: This positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium transition metal complex oxide capable of occluding and releasing Li, and contains SrMnO3 in the interior or exterior of secondary particles of the lithium transition metal complex oxide.

公开(公告)号：US20220393164A1

公开(公告)日：2022-12-08

申请号：US17763987

申请日：2020-09-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada ,  Akiko Murata ,  Mitsuhiro Hibino

IPC: H01M4/525 ,  H01M4/505

Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries includes a lithium transition metal complex oxide that has a spinel structure and that is represented by general formula Li1+αNi0.5-xMn1.5-y-zGeyMx+zO4 (in the formula, 0≤α

公开(公告)号：US20250140863A1

公开(公告)日：2025-05-01

申请号：US18719420

申请日：2022-10-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shogo Esaki ,  Mitsuhiro Hibino ,  Kensuke Nakura

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525

Abstract: Provided are: a secondary battery electrode in which elution of a metal component is suppressed; and a secondary battery using this electrode. This secondary battery comprises a positive electrode and a negative electrode. At least the positive electrode or the negative electrode includes a collector, and a composite layer disposed on a surface of the collector. The composite layer includes an electrode active material containing an elemental metal, a compound having a terminal CN group, an electroconductive material, a water-insoluble additive, and a water-soluble additive. The water-insoluble additive contains a polysaccharide.

公开(公告)号：US20250062334A1

公开(公告)日：2025-02-20

申请号：US18721348

申请日：2022-12-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

IPC: H01M4/505 ,  H01M4/02 ,  H01M10/052

Abstract: A positive electrode active material for a secondary battery contains a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to the space group Fm-3m. The lithium metal composite oxide contains at least one element A1 selected from the group consisting of Fe, Cr, Na, Mg, Cu, Zn, Pb, Sb, and W. The content of the element A1 in the lithium metal composite oxide is 10 ppm by mass or more and 1000 ppm by mass or less with respect to the total amount of the lithium metal composite oxide.

公开(公告)号：US20240304803A1

公开(公告)日：2024-09-12

申请号：US18275333

申请日：2022-02-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

IPC: H01M4/505 ,  C01G53/00 ,  H01M4/02

CPC classification number: H01M4/505 ,  C01G53/50 ,  C01P2002/52 ,  C01P2006/40 ,  H01M2004/028

Abstract: The positive electrode active material for non-aqueous electrolyte secondary batteries which is an example of one embodiment includes a lithium-transition metal composite oxide represented by the compositional formula LixMnyNizSiaMfO2-αFα (in the formula, M is at least one element selected from Na, K, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ge, Sn, Pb, Sc, Ti, V, Cr, Fe, Co, Cu, Zn, Ru, Rh, Re, Pd, Ir, Ag, Bi, Sb, B, Al, Ga, In, P, Zr, Hf, Nb, Mo, and W, x+y+z+a+f≤2+A, 1.0

公开(公告)号：US20240072252A1

公开(公告)日：2024-02-29

申请号：US18269391

申请日：2021-12-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryuichi Natsui ,  Kensuke Nakura ,  Mitsuhiro Hibino

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/131 ,  H01M4/62 ,  H01M10/0569

CPC classification number: H01M4/525 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0569 ,  H01M2004/028

Abstract: A positive electrode for secondary batteries includes a positive electrode current collector, and a positive electrode mixture layer provided on a surface of the positive electrode current collector. The positive electrode mixture layer contains a positive electrode active material, a conductive agent, a polysaccharide, and a resin other than the polysaccharide, and at least part of surfaces of the positive electrode active material, the conductive agent, and the resin is coated with the polysaccharide.

公开(公告)号：US20230275220A1

公开(公告)日：2023-08-31

申请号：US18014842

申请日：2021-08-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yukihiro Oki ,  Kazuko Asano ,  Nanami Takeda ,  Mitsuhiro Hibino

IPC: H01M4/38

CPC classification number: H01M4/386 ,  H01M2004/027

Abstract: A negative electrode active material for a secondary battery includes an intermetallic compound having a cage structure. The cage structure is constituted of at least one first atom located within a cage, and a plurality of second atoms arranged in a cage-like form so as to surround the first atom. The first atom is a cerium atom, and the plurality of the second atoms include 8 or more and 17 or less silicon atoms.