公开(公告)号：US20210193999A1

公开(公告)日：2021-06-24

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 ,  H01M10/0525 ,  C01G45/12

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：US20210143397A1

公开(公告)日：2021-05-13

申请号：US17152801

申请日：2021-01-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUHEI UCHIDA ,  RYUICHI NATSUI ,  KENSUKE NAKURA

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

Abstract: A positive electrode active material includes a lithium composite oxide having a crystal structure belonging to the space group Fd-3m and has an integrated intensity ratio I(18°-20°)/I(43°-46°) of greater than or equal to 0.05 and less than or equal to 0.90 and an integrated intensity ratio I(63°-65°)/I(17°-19°) of greater than or equal to 0.8 and less than or equal to 2.0. The integrated intensity ratio I(18°-20°)/I(43°-46°) is a ratio of an integrated intensity I(18°-20°) to an integrated intensity I(43°-46°). The integrated intensity ratio I(63°-65°)/I(17°-19°) is a ratio of an integrated intensity I(63°-65°) to an integrated intensity I(17°-19°). The integrated intensity I(A°-B°) is an integrated intensity of a maximum peak present in a range of angle of diffraction 2θ greater than or equal to A° and less than or equal to B° in the X-ray diffraction pattern of the positive electrode active material.

公开(公告)号：US20180083313A1

公开(公告)日：2018-03-22

申请号：US15813204

申请日：2017-11-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKATSUTSUMI ,  RYUICHI NATSUI ,  NOBUHIKO HOJO

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/505 ,  H01M4/525 ,  C01G45/00 ,  C01G51/00 ,  C01G53/00

Abstract: A battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolytic solution including an additive. 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 additive is at least one selected from dinitrile compounds and diisocyanate compounds.

公开(公告)号：US20180076452A1

公开(公告)日：2018-03-15

申请号：US15821749

申请日：2017-11-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： IZURU SASAKI ,  RYUICHI NATSUI

IPC: H01M4/505 ,  C01B11/24 ,  H01M10/0525 ,  H01M10/0562

Abstract: A battery includes a positive electrode containing a positive electrode active material, a negative electrode, and a solid electrolyte. The positive electrode active material contains a compound which has a crystal structure belonging to the space group FM3-M and which is represented by the following formula: LixMeyOαFβ  (1) where Me is one or more 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 the conditions 1.7≦x≦2.2, 0.8≦y≦1.3, 1≦α≦2.5, and 0.5≦β≦2 are satisfied.

公开(公告)号：US20150295238A1

公开(公告)日：2015-10-15

申请号：US14675871

申请日：2015-04-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： RYUICHI NATSUI ,  KENSUKE NAKURA

IPC: H01M4/505 ,  C01G45/12 ,  H01M10/052 ,  H01M4/04 ,  H01M4/485 ,  H01M2/16

CPC classification number: H01M4/505 ,  C01G45/1221 ,  C01G45/1228 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2006/40 ,  H01M2/16 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/621 ,  H01M4/624 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0034 ,  H01M2300/004

Abstract: The cathode active material for a nonaqueous electrolyte secondary battery according to an aspect of the present disclosure mainly comprises a compound represented by a composition formula: LixNay(LiαNaβMn1-α-β)O2, where x, y, α, and β satisfy 0.75≦x≦1.0, 0

Abstract translation: 根据本发明的一个方面的用于非水电解质二次电池的正极活性材料主要包括由组合式：LixNay（LiαNa＆bgr; Mn1-α＆bgr））O2表示的化合物，其中x，y，α和＆bgr ; 满足0.75＆nlE; x＆nlE; 1.0,0

公开(公告)号：US20210151740A1

公开(公告)日：2021-05-20

申请号：US17159245

申请日：2021-01-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUHEI UCHIDA ,  RYUICHI NATSUI ,  KENSUKE NAKURA

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

Abstract: A positive electrode active material according to the present disclosure includes a lithium composite oxide that contains at least one element selected from the group consisting of F, Cl, N, and S, and at least one element selected from the group consisting of Bi, La, Ce, Ga, Sr, Y, and Sn. Mathematical formula 0.05≤integrated intensity ratio I(18°-20°)/I(43°-46°)≤0.90 is satisfied. The integrated intensity ratio I(18°-20°)/I(43°-46°) is a ratio of an integrated intensity I(18°-20°) to an integrated intensity I(43°-46°). The integrated intensity I(A°-B°)is an integrated intensity of a maximum peak present in a range of angle of diffraction 2θ greater than or equal to A° and less than or equal to B° in the X-ray diffraction pattern of the lithium composite oxide.

公开(公告)号：US20210143424A1

公开(公告)日：2021-05-13

申请号：US17152799

申请日：2021-01-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUHEI UCHIDA ,  RYUICHI NATSUI ,  KENSUKE NAKURA

IPC: H01M4/525 ,  H01M4/36 ,  H01M4/505 ,  H01M10/0525

Abstract: A positive electrode active material includes a first lithium composite oxide and a second lithium composite oxide that covers at least a part of the surface of the first lithium composite oxide. The first lithium composite oxide includes at least one selected from the group consisting of F, Cl, N, and S. The first lithium composite oxide has a crystal structure belonging to a layered structure. The second lithium composite oxide has a crystal structure belonging to space group Fd-3m. The positive electrode active material has an integrated intensity ratio I(18°-20°)/I(43°-46°) of greater than or equal to 0.05 and less than or equal to 0.90.

公开(公告)号：US20210074997A1

公开(公告)日：2021-03-11

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 ,  H01M4/36 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00 ,  H01M10/0525

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：US20210057742A1

公开(公告)日：2021-02-25

申请号：US17092820

申请日：2020-11-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： ISSEI IKEUCHI ,  RYUICHI NATSUI ,  KENSUKE NAKURA

IPC: H01M4/505 ,  H01M4/525 ,  H01M4/38 ,  H01M10/0562

Abstract: A positive electrode active material according to the present disclosure includes: a lithium composite oxide which contains 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 a layered structure, and a relationship 0.95≤intensity ratio IMn1/IMn2≤1.75 is satisfied. The intensity ratio IMn1/IMn2 is a ratio of an intensity IMn1 to an intensity IMn2. The intensity IMn1 is an intensity of a first proximity peak of the Mn in a radial distribution function of the Mn contained in the lithium composite oxide. The intensity IMn2 is an intensity of a second proximity peak of the Mn in the radial distribution function of the Mn contained in the lithium composite oxide.

公开(公告)号：US20200083529A1

公开(公告)日：2020-03-12

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

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.