公开(公告)号：US20220166007A1

公开(公告)日：2022-05-26

申请号：US17442219

申请日：2020-01-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Ko ,  Shinya Suzuki ,  Fumiharu Niina ,  Sho Tsuruta ,  Katsunori Yanagida

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58

Abstract: In a nonaqueous electrolyte secondary battery, a positive electrode contains a positive electrode active material A. The positive electrode active material A includes: a lithium transition metal composite oxide represented by a general formula of LiaNibCocMndAleMfOg (in the formula, M is at least one element selected from Groups IV, V, and VI, and 0.8≤a≤1.2, b≥0.82, 0

公开(公告)号：US20200266420A1

公开(公告)日：2020-08-20

申请号：US15781578

申请日：2016-12-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Ko ,  Fumiharu Niina ,  Katsunori Yanagida

IPC: H01M4/131 ,  H01M4/134 ,  H01M4/66 ,  H01M10/0525

Abstract: It is an object of the present disclosure to provide a nonaqueous electrolyte secondary battery with improved low-temperature power characteristics. A nonaqueous electrolyte secondary battery includes a positive electrode and a negative electrode. The positive electrode according to the present invention contains a lithium transition metal oxide, at least one element of a group 5 element and group 6 element in the periodic table, and a phosphoric acid compound containing a metal element and hydrogen element.

公开(公告)号：US20190044184A1

公开(公告)日：2019-02-07

申请号：US16074654

申请日：2017-02-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akihiko Takada ,  Fumiharu Niina ,  Katsunori Yanagida

IPC: H01M10/0525 ,  H01M10/04 ,  H01M10/0566 ,  H01M4/505

Abstract: In a nonaqueous electrolyte secondary battery, a positive electrode contains a lithium transition metal oxide and a phosphoric acid compound. A nonaqueous electrolyte contains a dinitrile represented by a general formula: NC-A-CN (A represents a linear hydrocarbon having 1 to 10 carbon atoms or a hydrocarbon which contains a main chain having 1 to 10 carbon atoms and at least one side chain having 3 or less carbon atoms); an ether represented by a general formula: R1—O—R2—O—R3 (R1 and R3 each represent a group which contains a main chain having 1 to 3 carbon atoms, and R2 represents a chain hydrocarbon group having 1 to 3 carbon atoms); and a fluorophosphate salt.