公开(公告)号：US20180248220A1

公开(公告)日：2018-08-30

申请号：US15753772

申请日：2016-08-23

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Noriko Manabe ,  Kaoru Nagata ,  Masahiro Kinoshita ,  Taizou Sunano

IPC: H01M10/0525 ,  H01M4/525 ,  H01M4/587 ,  H01M4/38 ,  H01M4/36

CPC classification number: H01M10/0525 ,  H01M4/131 ,  H01M4/364 ,  H01M4/386 ,  H01M4/525 ,  H01M4/587 ,  H01M2004/021

Abstract: In a nonaqueous electrolyte secondary battery which includes an electrode assembly that includes a positive electrode including a positive electrode current collector and a positive electrode mixture layer, a negative electrode including a negative electrode current collector and a negative electrode mixture layer, and a separator, the positive electrode mixture layer contains Ni in a proportion of not less than 85 mol % relative to the total molar amount of metal element(s) except lithium, and includes a lithium transition metal oxide bearing on the surface thereof an attached element belonging to Group VI of the periodic table. The negative electrode mixture layer includes a carbon material and a silicon compound. The surface pressure present on a plane in which the positive electrode and the negative electrode are opposed to each other through the separator is not less than 0.1 MPa/cm2.

公开(公告)号：US12237505B2

公开(公告)日：2025-02-25

申请号：US16086225

申请日：2017-01-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koh Masahara ,  Kaoru Nagata ,  Takaya Tochio ,  Taizou Sunano ,  Akihiro Kawakita ,  Takeshi Ogasawara

IPC: H01M4/00 ,  C01G53/42 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

Abstract: This positive electrode active material for non-aqueous electrolyte secondary batteries comprises: lithium transition metal oxide particles; a metal compound which contains a metal element M and adheres to the surfaces of the lithium transition metal oxide particles; and a lithium metal compound which contains lithium (Li) and the metal element M and adheres to the surfaces of the lithium transition metal oxide particles. In this connection, the metal element M is composed of at least one substance that is selected from among aluminum (Al), titanium (Ti), manganese (Mn), gallium (Ga), molybdenum (Mo), tin (Sn), tungsten (W) and bismuth (Bi).

公开(公告)号：US20200295366A1

公开(公告)日：2020-09-17

申请号：US16086225

申请日：2017-01-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koh Masahara ,  Kaoru Nagata ,  Takaya Tochio ,  Taizou Sunano ,  Akihiro Kawakita ,  Takeshi Ogasawara

IPC: H01M4/525 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/36

Abstract: This positive electrode active material for non-aqueous electrolyte secondary batteries comprises: lithium transition metal oxide particles; a metal compound which contains a metal element M and adheres to the surfaces of the lithium transition metal oxide particles; and a lithium metal compound which contains lithium (Li) and the metal element M and adheres to the surfaces of the lithium transition metal oxide particles. In this connection, the metal element M is composed of at least one substance that is selected from among aluminum (Al), titanium (Ti), manganese (Mn), gallium (Ga), molybdenum (Mo), tin (Sn), tungsten (W) and bismuth (Bi).

公开(公告)号：US20250158055A1

公开(公告)日：2025-05-15

申请号：US19028043

申请日：2025-01-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koh Masahara ,  Kaoru Nagata ,  Takaya Tochio ,  Taizou Sunano ,  Akihiro Kawakita ,  Takeshi Ogasawara

IPC: H01M4/525 ,  C01G53/42 ,  H01M4/02 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525

Abstract: This positive electrode active material for non-aqueous electrolyte secondary batteries comprises: lithium transition metal oxide particles; a metal compound which contains a metal element M and adheres to the surfaces of the lithium transition metal oxide particles; and a lithium metal compound which contains lithium (Li) and the metal element M and adheres to the surfaces of the lithium transition metal oxide particles. In this connection, the metal element M is composed of at least one substance that is selected from among aluminum (Al), titanium (Ti), manganese (Mn), gallium (Ga), molybdenum (Mo), tin (Sn), tungsten (W) and bismuth (Bi).

公开(公告)号：US20180287140A1

公开(公告)日：2018-10-04

申请号：US15753797

申请日：2016-08-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Akira ,  Taizou Sunano ,  Hiroshi Minami

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/131 ,  H01M10/052

Abstract: Negative electrode active material particles each include a composite particle containing silicon particles and a lithium silicate phase represented by LixSiOy (0