公开(公告)号：US10903523B2

公开(公告)日：2021-01-26

申请号：US16360508

申请日：2019-03-21

申请人： Panasonic Corporation

发明人： Takanobu Chiga ,  Naoya Morisawa ,  Kazuhiro Iida ,  Atsushi Fukui

IPC分类号： H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

摘要： A nonaqueous electrolyte includes a lithium salt, a trifluoropropionate ester of the formula (1), and a fluorinated carboxylate ester of the formula (2). The amount of (1) is not less than 10 mass % of the nonaqueous electrolyte. In the formulae, R1 is a C1-3 alkyl group, one or two of X1 to X4 are fluorine atoms, R2 is a hydrogen atom, a C1-3 alkyl group or a fluorinated C1-3 alkyl group, and R3 is a C1-3 alkyl group or a fluorinated C1-3 alkyl group.

公开(公告)号：US20190312262A1

公开(公告)日：2019-10-10

申请号：US16450050

申请日：2019-06-24

申请人： Panasonic Corporation

发明人： Naoya Morisawa ,  Takanobu Chiga ,  Kazuhiro Iida ,  Atsushi Fukui

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M10/0569 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0567

摘要： A nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode mixture, a negative electrode, and a nonaqueous electrolyte containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent. The positive electrode mixture contains a positive electrode active material and a phosphate salt, the positive electrode active material contains a lithium-nickel composite oxide represented by formula (1): LixNi1-yM1yO2 (in the formula, 0.9≤x≤1.1, 0≤y≤0.7, and M1 is at least one element selected from the group consisting of Co, Mn, Fe, Ti, Al, Mg, Ca, Sr, Zn, Y, Yb, Nb, Cr, V, Zr, Mo, W, Cu, In, Sn, and As), and the nonaqueous solvent contains a trifluoropropionate ester represented by formula (2): F3C—CH2—CO—O—R1 (in the formula, R1 is a C1-3 alkyl group).

公开(公告)号：US20190221889A1

公开(公告)日：2019-07-18

申请号：US16360508

申请日：2019-03-21

申请人： Panasonic Corporation

发明人： Takanobu Chiga ,  Naoya Morisawa ,  Kazuhiro Iida ,  Atsushi Fukui

IPC分类号： H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0525 ,  H01M4/525

CPC分类号： H01M10/0569 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2004/028 ,  H01M2300/004

摘要： A nonaqueous electrolyte includes a lithium salt, a trifluoropropionate ester of the formula (1), and a fluorinated carboxylate ester of the formula (2). The amount of (1) is not less than 10 mass % of the nonaqueous electrolyte. In the formulae, R1 is a C1-3 alkyl group, one or two of X1 to X4 are fluorine atoms, R2 is a hydrogen atom, a C1-3 alkyl group or a fluorinated C1-3 alkyl group, and R3 is a C1-3 alkyl group or a fluorinated C1-3 alkyl group.

公开(公告)号：US11201355B2

公开(公告)日：2021-12-14

申请号：US16523365

申请日：2019-07-26

申请人： Panasonic Corporation

发明人： Kazuhiro Iida ,  Takanobu Chiga ,  Naoya Morisawa ,  Atsushi Fukui

IPC分类号： H01M10/0569 ,  H01M10/0567 ,  H01M10/0525 ,  H01M4/525 ,  C07C49/10 ,  C07C49/205

摘要： A non-aqueous electrolyte secondary cell provided with: a positive electrode that has a positive electrode active material; a negative electrode; and a non-aqueous electrolyte. The positive electrode active material contains a lithium composite oxide containing Ni, and the non-aqueous electrolyte contains a non-aqueous solvent containing a fluorinated chain carboxylic acid ester and an organochlorine compound. The organochlorine compound is represented by general formula CF3CH2CO—CClR1R2 (where in the formula, R1 and R2 are respectively independent, and are selected from a hydrogen, a halogen, a C1-2 alkyl group, or a C1-2 halogenated alkyl group).

公开(公告)号：US10770752B2

公开(公告)日：2020-09-08

申请号：US16377071

申请日：2019-04-05

申请人： PANASONIC CORPORATION

发明人： Takanobu Chiga ,  Naoya Morisawa

IPC分类号： H01M10/0567 ,  H01M2/02 ,  H01M2/22 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/056 ,  H01M2/26 ,  H01M10/0587

摘要： A nonaqueous electrolyte secondary battery including an electrode assembly in which a positive electrode and a negative electrode are stacked together through a separator, a nonaqueous electrolytic solution, and an exterior case which accommodates the electrode assembly and the nonaqueous electrolytic solution. The negative electrode is electrically connected to the exterior case, which contains iron, and the nonaqueous electrolytic solution includes a fluorinated carboxylate ester and lithium fluorosulfate salt (LiSO3F).

公开(公告)号：US10297858B2

公开(公告)日：2019-05-21

申请号：US15216919

申请日：2016-07-22

申请人： Panasonic Corporation

发明人： Takanobu Chiga ,  Naoya Morisawa

IPC分类号： H01M10/0567 ,  H01M10/056 ,  H01M10/04 ,  H01M10/0525 ,  H01M2/02 ,  H01M2/22 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2/26

摘要： A nonaqueous electrolytic solution for nonaqueous electrolyte secondary batteries includes a nonaqueous solvent and an electrolyte. The nonaqueous solvent includes a fluorinated carboxylate ester represented by the formula (1): where R1 and R2 are each any of H, F, CH3-xFx (x is 1, 2 or 3) and R3 is an optionally fluorinated alkyl group having 1 to 3 carbon atoms. The nonaqueous electrolytic solution further comprising lithium fluorosulfate salt (LiSO3F).

公开(公告)号：US10090561B2

公开(公告)日：2018-10-02

申请号：US14885958

申请日：2015-10-16

申请人： Panasonic Corporation

发明人： Takanobu Chiga

IPC分类号： H01M10/0569 ,  H01M2/16 ,  H01M4/13 ,  H01M10/052 ,  H01M10/058 ,  H01M10/0525

摘要： In a nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a nonaqueous electrolyte containing a lithium salt in a nonaqueous solvent, and a separator disposed between the positive electrode and the negative electrode, an inorganic particle layer is disposed between the positive electrode and the separator, and the nonaqueous solvent contains a chain fluorinated carboxylate ester represented by the formula CH3-XFX—CH2—COO—CH3 (where, x is an integer of 1 to 3) in an amount of 15% by volume or more based on the total amount of the nonaqueous solvent.

公开(公告)号：US10998581B2

公开(公告)日：2021-05-04

申请号：US16377071

申请日：2019-04-05

申请人： PANASONIC CORPORATION

发明人： Takanobu Chiga ,  Naoya Morisawa

IPC分类号： H01M10/0567 ,  H01M2/02 ,  H01M2/22 ,  H01M4/525 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2/26 ,  H01M10/0587

摘要： A nonaqueous electrolyte secondary battery including an electrode assembly in which a positive electrode and a negative electrode are stacked together through a separator, a nonaqueous electrolytic solution, and an exterior case which accommodates the electrode assembly and the nonaqueous electrolytic solution. The negative electrode is electrically connected to the exterior case, which contains iron, and the nonaqueous electrolytic solution includes a fluorinated carboxylate ester and lithium fluorosulfate salt (LiSO3F).