公开(公告)号：US20200014066A1

公开(公告)日：2020-01-09

申请号：US16495587

申请日：2018-01-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahiro Shiraga ,  Mitsuru Iwai ,  Yuanlong Zhong

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525 ,  C07D319/12 ,  C07F1/02

Abstract: This non-aqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode and a non-aqueous electrolyte. The non-aqueous electrolyte contains: a non-aqueous solvent that contains a fluorine-containing cyclic carbonate; a cyclic carboxylic acid anhydride such as diglycolic acid anhydride; and an imide lithium salt having a sulfonyl group such as lithium bis(fluorosulfonyl)imide.

公开(公告)号：US20190326640A1

公开(公告)日：2019-10-24

申请号：US16472561

申请日：2017-12-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masaki Hasegawa ,  Yuanlong Zhong

IPC: H01M10/0567 ,  H01M4/525 ,  H01M10/0569 ,  H01M10/0525 ,  C07D251/34 ,  C07D319/12

Abstract: This nonaqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode and a non-aqueous electrolyte. The non-aqueous electrolyte contains: a non-aqueous solvent that contains a fluorine-containing cyclic carbonate; an isocyanuric acid derivative such as triallyl isocyanurate; and a cyclic carboxylic acid anhydride such as diglycolic acid anhydride.

公开(公告)号：US20230187693A1

公开(公告)日：2023-06-15

申请号：US17926041

申请日：2021-04-08

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yuanlong Zhong

IPC: H01M10/0564 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/056

CPC classification number: H01M10/0564 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/056 ,  H01M2300/0028

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material. The positive electrode active material includes a lithium transition metal composite oxide including Ni, Al, and at least one of Co and Mn. The lithium transition metal composite oxide is represented by a composition formula below: LiαNi(1−s−x2−z) Cox1Mnx2AlyMzO2+β (where 0.95≤α≤1.05, 0.5≤1−x1−x2−y−z≤0.95, 0≤x1≤0.04, 0≤x2≤0.1, 0≤y≤0.1, 0≤z≤0.1, −0.05≤β≤0.05, M is at least one selected from the group consisting of Ti, Zr, Nb, Mo, W, Fe, Zn, B, Si, Mg, Ca, Sr, and Y). The nonaqueous electrolyte includes an isocyanuric acid ester component having at least one unsaturated organic group with an unsaturated carbon-carbon bond.

公开(公告)号：US20230170527A1

公开(公告)日：2023-06-01

申请号：US17913290

申请日：2021-03-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tasuku Ishiguro ,  Satoshi Nishitani ,  Yuanlong Zhong ,  Chisaki Fujitomo

IPC: H01M10/0567 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2300/004

Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode material mixture containing a negative electrode active material capable of electrochemically absorbing and releasing lithium ions, and carbon nanotubes. The negative electrode active material includes a silicon-containing material and a carbonaceous material. The non-aqueous electrolyte includes at least one cyclic ester selected from the group consisting of a cyclic sulfate ester, a cyclic sulfite ester, and a sultone. A content of the carbon nanotubes in the negative electrode material mixture is 0.005 mass% or more and 0.05 mass% or less.

公开(公告)号：US20210083325A1

公开(公告)日：2021-03-18

申请号：US16640293

申请日：2018-07-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomoki Tsuji ,  Yuanlong Zhong

IPC: H01M10/0567 ,  H01M4/525 ,  H01M4/505 ,  H01M10/052 ,  H01M4/62 ,  C07D319/12

Abstract: A non-aqueous electrolyte secondary cell provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode has a positive electrode active material that contains composite oxide particles which include Ni, Co, Li, and at least one of Mn and Al, and in which the proportion of Ni in relation to the total number of moles of metal elements excluding Li is at least 80 mol %. In the composite oxide particles, the ratio (B/A) of the post-particle-compression-test BET specific surface area (B) with respect to the pre-particle-compression-test BET specific surface area (A) is 1.0-3.0. The non-aqueous electrolyte contains a non-aqueous solvent and a cyclic carboxylic anhydride such as diglycolic anhydride.

公开(公告)号：US20190260078A1

公开(公告)日：2019-08-22

申请号：US16343922

申请日：2017-10-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuanlong Zhong

IPC: H01M10/0567 ,  H01M10/0561 ,  H01M2/02 ,  H01M10/0587

Abstract: This non-aqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte. The non-aqueous electrolyte includes: a non-aqueous solvent including a fluorine-containing cyclic carbonate; a maleimide compound such as N-ethyl maleimide; and a cyclic carboxylic acid anhydride such as diglycolic acid anhydride.