公开(公告)号：US09716267B2

公开(公告)日：2017-07-25

申请号：US15124766

申请日：2014-12-26

申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Tatsuya Eguchi ,  Takeshi Maki ,  Manabu Miyoshi ,  Yuuhi Sato ,  Jun Kaneda ,  Yusuke Yamamoto ,  Takahiro Sugioka

IPC分类号： H01M4/36 ,  H01M4/62 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/13 ,  H01M4/139 ,  H01M4/04 ,  H01M10/052 ,  H01M4/02

CPC分类号： H01M4/364 ,  H01M4/0404 ,  H01M4/0433 ,  H01M4/13 ,  H01M4/139 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

摘要： A parameter for producing a positive electrode having excellent safety, and a positive electrode active material layer satisfying the parameter. The positive electrode active material layer includes a first positive electrode active material, a second positive electrode active material having a lower charge/discharge potential than the first positive electrode active material, and an additive. When the first positive electrode active material tap density is defined as dt1, the second positive electrode active material tap density is defined as dt2, a true density of the additive is defined as d3, a mass percentage of the first positive electrode active material is defined as Wt1, a mass percentage of the second positive electrode active material is defined as Wt2, a mass percentage of the additive is defined as Wt3, and a porosity of the positive electrode active material layer is defined as p, the positive electrode active material layer satisfies (1−p)×(Wt1/dt1)/((Wt1/dt1)+(Wt2/dt2)+(Wt3/d3))

公开(公告)号：US10559813B2

公开(公告)日：2020-02-11

申请号：US15565006

申请日：2016-04-05

申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Atsushi Saito ,  Tatsuya Eguchi ,  Manabu Miyoshi ,  Jun Kaneda ,  Tomokuni Abe ,  Hiroki Oshima

IPC分类号： H01M4/134 ,  H01M4/587 ,  H01M4/36 ,  H01M4/62 ,  H01M4/133 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/02

摘要： The negative electrode includes a current collector, a negative electrode active material layer arranged on a surface of the current collector, and a protective layer arranged on a surface of the negative electrode active material layer. The negative electrode active material layer includes a first negative electrode active material having an aspect ratio defined as “a”/“b” to fall in a range of from two or more to eight or less when a length of the major axis is defined “a” and a length of the minor axis is defined “b.” The protective layer includes a ceramic powder.

公开(公告)号：US09966607B2

公开(公告)日：2018-05-08

申请号：US15519977

申请日：2015-10-20

申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Yusuke Sugiyama ,  Nobuhiro Goda ,  Masakazu Murase ,  Takeshi Kondo ,  Yuta Kawamoto ,  Tomokuni Abe ,  Yuta Nakagawa ,  Jun Kaneda

IPC分类号： H01M4/62 ,  H01M10/0525 ,  C08F8/32 ,  C09D133/02 ,  C09D5/24 ,  H01M4/38 ,  H01M4/48 ,  H01M4/02 ,  C08F8/48 ,  H01G11/38 ,  H01M4/133 ,  H01M4/134 ,  H01M4/04 ,  H01M4/587

CPC分类号： H01M4/622 ,  C08F8/32 ,  C08F8/48 ,  C09D5/24 ,  C09D133/02 ,  H01G11/38 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/483 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/13

摘要： A polymer compound for use as a binder for a negative electrode of an electrical storage device is formed by condensing polyacrylic acid and a multifunctional amine represented by the following formula (1), in which Y represents a straight chain alkyl group having 1 to 4 carbon atoms, a phenylene group, or an oxygen atom, and R1 and R2 each independently represent one or more hydrogen atoms, methyl groups, ethyl groups, trifluoromethyl groups, or methoxy groups.