公开(公告)号：US20180269482A1

公开(公告)日：2018-09-20

申请号：US15912720

申请日：2018-03-06

Applicant: TDK CORPORATION

Inventor： Shin FUJITA

IPC: H01M4/58 ,  H01M10/0525 ,  H01M10/0569 ,  C01B25/45

CPC classification number: H01M4/5825 ,  C01B25/45 ,  C01P2006/40 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/028 ,  H01M2300/0037

Abstract: A positive electrode active material includes a compound represented by general formula (1) below. The compound contains crystallization water. LiaMb(PO4)c  ρ (1) (M includes at least one selected from Fe, Mn, Co, Ni, VO, V, and 1a4, 1b2, 1c3)

公开(公告)号：US20170149051A1

公开(公告)日：2017-05-25

申请号：US15348280

申请日：2016-11-10

Applicant: TDK CORPORATION

Inventor： Shin FUJITA ,  Hideaki SEKI

IPC: H01M4/131 ,  H01M4/62 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/36

CPC classification number: H01M4/131 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/625 ,  H01M10/0525

Abstract: A positive electrode active material includes: a lithium complex oxide expressed by chemical formula (1); a highly thermal conductive compound; and graphene or multilayer graphene. LixM1yM21-yO2  (1) In the formula (1), M1 is at least one metal selected from Ni, Co, and Mn, M2 is at least one metal selected from the group consisting of Al, Fe, Ti, Cr, Mg, Cu, Ga, Zn, Sn, B, V, Ca, and Sr, and x and y are numbers such that 0.05≦x≦1.2 and 0.3≦y≦1.

公开(公告)号：US20160285103A1

公开(公告)日：2016-09-29

申请号：US15077151

申请日：2016-03-22

Applicant: TDK CORPORATION

Inventor： Junpei SHITABA ,  Hideaki SEKI ,  Akinobu NOJIMA ,  Shin FUJITA ,  Masahiro SAEGUSA

IPC: H01M4/62 ,  H01M4/131 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/36

CPC classification number: H01M4/5825 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/622 ,  H01M4/625 ,  H01M10/052 ,  H01M10/654 ,  H01M2004/028

Abstract: A positive electrode active material for lithium ion secondary battery, includes: a lithium nickel complex oxide represented by composition formula (1); a phosphate compound; and a coating layer formed on at least a part of a surface of a particle of the lithium nickel complex oxide, and including a high thermal conductive material with heat conductivity of 500 W/m·K or more. The coating layer of the particle of the lithium nickel complex oxide includes a portion connected to the coating layer of another particle of the lithium nickel complex oxide: LixNi1-yMyO2  (1) where M includes at least one metal selected from the group consisting of Co, Fe, Ti, Cr, Mg, Al, Cu, Ga, Mn, Zn, Sn, B, V, Ca, and Sr, and x and y are such that 0.05≦x≦1.2 and 0≦y≦0.5.

Abstract translation: 其中M包括选自Co，Fe，Ti，Cr，Mg，Al，Cu，Ga，Mn，Zn，Sn，B，V，Ca和Sr中的至少一种金属，x和y为 0.05≤x≤1.2且0≤y≤0.5。

公开(公告)号：US20180287200A1

公开(公告)日：2018-10-04

申请号：US15926249

申请日：2018-03-20

Applicant: TDK CORPORATION

Inventor： Takashi SASAKI ,  Hideaki SEKI ,  Hirofumi KAKUTA ,  Akinobu NOJIMA ,  Shin FUJITA

IPC: H01M10/0525 ,  H01M10/6551 ,  H01M10/04 ,  H01M4/66 ,  H01M4/583 ,  H01M2/16

Abstract: In this non-aqueous electrolyte secondary battery, a positive terminal and a negative terminal extend in a first direction, protrude from a laminated cell stack, and are provided so that a center line is interposed therebetwen, the center line passing through a midpoint of both ends of the laminated cell stack in a second direction orthogonal to the first direction and extending in the first direction when the laminated cell stack is seen in plan view, and a first terminal with higher heat dissipation efficiency among the positive terminal and the negative terminal is provided in a location closer to the center line than a location of a second terminal with lower heat dissipation efficiency among the positive terminal and the negative terminal.

公开(公告)号：US20170250401A1

公开(公告)日：2017-08-31

申请号：US15437756

申请日：2017-02-21

Applicant: TDK CORPORATION

Inventor： Tetsu SYOJI ,  Hideaki SEKI ,  Hirofumi KAKUTA ,  Shin FUJITA

IPC: H01M4/36 ,  H01M4/58 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/525

CPC classification number: H01M4/364 ,  H01M4/13 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive electrode includes: a positive electrode current collector; and a positive electrode active material layer disposed on the positive electrode current collector. The positive electrode active material layer contains a lithium-containing transition metal oxide represented by composition formula (1) indicated below, and a compound represented by LiVOPO4. The lithium-containing transition metal oxide and the compound represented by LiVOPO4 are dispersed in the positive electrode active material layer. LitNixCoyAlzO2   (1) where 0.9

公开(公告)号：US20160285073A1

公开(公告)日：2016-09-29

申请号：US15077491

申请日：2016-03-22

Applicant: TDK CORPORATION

Inventor： Shin FUJITA ,  Hideaki SEKI

IPC: H01M4/131 ,  H01M10/0525

CPC classification number: H01M4/131 ,  H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

Abstract: A positive electrode active material includes: a lithium complex oxide expressed by chemical formula (1); and a highly thermal conductive compound having thermal conductivity of 10 W/m·K or more, the chemical formula (1) being LixM1yM21-yO2  (1) where M1 is at least one metal selected from the group consisting of Ni, Co, and Mn, M2 is at least one metal selected from the group consisting of Al, Fe, Ti, Cr, Mg, Cu, Ga, Zn, Sn, B, V, Ca, and Sr, and x and y are numbers such that 0.05≦x≦1.2 and 0.3≦y≦1.

Abstract translation: 其中M1是选自Ni，Co和Mn中的至少一种金属，M2是选自Al，Fe，Ti，Cr，Mg，Cu，Ga，Zn，Sn中的至少一种金属， B，V，Ca和Sr，x和y是0.05≤x≤1.2且0.3≤y≤1的数字。