公开(公告)号：US10003100B2

公开(公告)日：2018-06-19

申请号：US14376224

申请日：2013-01-16

Applicant: NEC Corporation

Inventor： Takehiro Noguchi ,  Makiko Uehara

IPC: H01M10/0567 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0569 ,  H01M4/58 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/136 ,  H01M4/485 ,  H01M4/50 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M10/0567 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/136 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/028 ,  H01M2220/30 ,  H01M2300/0028 ,  H01M2300/0034 ,  H01M2300/0037

Abstract: A lithium secondary battery including a positive electrode including a positive electrode active material capable of intercalating and deintercalating lithium ions, a negative electrode including a negative electrode active material capable of intercalating and deintercalating lithium ions, and a nonaqueous electrolytic solution, wherein the positive electrode active material includes an active material capable of intercalating or deintercalating lithium ions at a potential of 4.5 V or more, and the nonaqueous electrolytic solution includes a particular fluorine-containing ether compound.

公开(公告)号：US20150010831A1

公开(公告)日：2015-01-08

申请号：US14376224

申请日：2013-01-16

Applicant: NEC Corporation

Inventor： Takehiro Noguchi ,  Makiko Uehara

IPC: H01M10/0567 ,  H01M4/136 ,  H01M4/131 ,  H01M4/50 ,  H01M10/0569 ,  H01M4/52 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/1315 ,  H01M4/505

CPC classification number: H01M10/0567 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/136 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/028 ,  H01M2220/30 ,  H01M2300/0028 ,  H01M2300/0034 ,  H01M2300/0037

Abstract: A lithium secondary battery including a positive electrode including a positive electrode active material capable of intercalating and deintercalating lithium ions, a negative electrode including a negative electrode active material capable of intercalating and deintercalating lithium ions, and a nonaqueous electrolytic solution, wherein the positive electrode active material includes an active material capable of intercalating or deintercalating lithium ions at a potential of 4.5 V or more, and the nonaqueous electrolytic solution includes a particular fluorine-containing ether compound.

Abstract translation: 一种锂二次电池，包括具有能够插入和脱嵌锂离子的正极活性物质的正极，含有能够插入和脱嵌锂离子的负极活性物质的负极和非水电解液，其中所述正极活性物质 材料包括能够以4.5V以上的电位插入或脱嵌锂离子的活性物质，非水电解液包含特定的含氟醚化合物。

公开(公告)号：US20140322615A1

公开(公告)日：2014-10-30

申请号：US14356710

申请日：2012-10-26

Applicant: NEC Corporation

Inventor： Makiko Uehara ,  Takehiro Noguchi

IPC: H01M10/0569 ,  H01M10/0525

CPC classification number: H01M10/0569 ,  H01M2/1613 ,  H01M2/1626 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2300/0034 ,  H01M2300/0037 ,  Y02E60/122 ,  Y02T10/7011

Abstract: It is an object of this exemplary embodiment to provide a lithium ion secondary battery using a positive electrode active material having an operating potential of 4.5 V or more, the lithium ion secondary battery having excellent high temperature cycle characteristics. This exemplary embodiment is a lithium ion secondary battery comprising a positive electrode and a negative electrode capable of intercalating and deintercalating lithium, a separator between the positive electrode and the negative electrode, and an electrolytic solution containing a nonaqueous electrolytic solvent, wherein the positive electrode comprises a positive electrode active material operating at a potential of 4.5 V or more versus lithium, the separator comprises cellulose, a cellulose derivative, or a glass fiber, and the nonaqueous electrolytic solvent comprises a fluorinated solvent.

Abstract translation: 本实施方式的目的在于，提供使用具有4.5V以上的工作电位的正极活性物质的锂离子二次电池，锂离子二次电池具有优异的高温循环特性。 该示例性实施例是一种锂离子二次电池，其包括正极和能够插入和脱嵌锂的负极，正极和负极之间的隔板以及含有非水电解溶剂的电解液，其中正电极包括 相对于锂，电势为4.5V以上的正极活性物质，隔膜包含纤维素，纤维素衍生物，玻璃纤维，非水电解溶剂含有氟化溶剂。

公开(公告)号：US09692085B2

公开(公告)日：2017-06-27

申请号：US14356710

申请日：2012-10-26

Applicant: NEC Corporation

Inventor： Makiko Uehara ,  Takehiro Noguchi

IPC: H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/58 ,  H01M2/16

CPC classification number: H01M10/0569 ,  H01M2/1613 ,  H01M2/1626 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2300/0034 ,  H01M2300/0037 ,  Y02E60/122 ,  Y02T10/7011

Abstract: It is an object of this exemplary embodiment to provide a lithium ion secondary battery using a positive electrode active material having an operating potential of 4.5 V or more, the lithium ion secondary battery having excellent high temperature cycle characteristics. This exemplary embodiment is a lithium ion secondary battery comprising a positive electrode and a negative electrode capable of intercalating and deintercalating lithium, a separator between the positive electrode and the negative electrode, and an electrolytic solution containing a nonaqueous electrolytic solvent, wherein the positive electrode comprises a positive electrode active material operating at a potential of 4.5 V or more versus lithium, the separator comprises cellulose, a cellulose derivative, or a glass fiber, and the nonaqueous electrolytic solvent comprises a fluorinated solvent.

公开(公告)号：US20140138575A1

公开(公告)日：2014-05-22

申请号：US14130056

申请日：2012-06-15

Applicant: NEC CORPORATION

Inventor： Takehiro Noguchi ,  Hideaki Sasaki ,  Makiko Uehara ,  Yuukou Katou

IPC: H01M4/36

CPC classification number: H01M4/364 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

Abstract: An active material for a secondary battery whose lifetime characteristics are improved is provided. The active material for a secondary battery includes a first active material represented by Lip[M1mM22-m-nM3n]O4, wherein M1 is at least one selected from Ni, Cr, Fe, Co, and Cu; M2 is at least one selected from Mn, Ti, and Si, and contains Mn; M3 is at least one selected from Li, B, Mg, Al, Na, and Ca; and 0≦p, 0

Abstract translation: 提供了寿命特性提高的二次电池用活性物质。 用于二次电池的活性材料包括由Lip [M1mM22-m-nM3n] O4表示的第一活性材料，其中M1是选自Ni，Cr，Fe，Co和Cu中的至少一种; M2是选自Mn，Ti和Si中的至少一种，并含有Mn; M3是选自Li，B，Mg，Al，Na和Ca中的至少一种; 和0＆lt; nlE; p，0