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1
US2021075020A1
LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: US2021075020A1 Publication Date: 2021-03-11 Application Number: 17/054,697 Filing Date: 2019-05-09 Inventor: Tanaami, Kiyoshi   Tanaka, Akihisa   Aoyagi, Shintaro   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M4/66 Abstract: In a lithium ion secondary battery (1), a positive electrode (2) and a negative electrode (3) are alternately adjacent to each other via separators (4) and (5). The positive electrode (2) includes a positive electrode current collector composed of a metal porous body, a first positive electrode active material (21) held on one side of the positive electrode current collector, and a second positive electrode active material (22) held on the other side. The negative electrode (3) includes a negative electrode current collector composed of a metal porous body, a first negative electrode active material (31) held on one side of the negative electrode current collector, and a second negative electrode active material (32) held on the other side. The first positive electrode active material (21) faces the first negative electrode active material (31), and the positive electrode active material (22) faces the second negative electrode active material (32).
2
EP3806199A1
NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: EP3806199A1 Publication Date: 2021-04-14 Application Number: 19810089.3 Filing Date: 2019-05-09 Inventor: Tanaami, Kiyoshi   Tanaka, Akihisa   Aoyagi, Shintaro   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M4/133 Abstract: Provided is a negative electrode for a lithium ion secondary battery capable of obtaining a lithium ion secondary battery having a high capacity and excellent charge-and-discharge cycle characteristics. A negative electrode for a lithium ion secondary battery (1) includes: a current collector (3) composed of a metal porous body having a three-dimensional network structure (2); and a negative electrode active material (4) held on the current collector (3). An overcoat layer (5) covering an outer surface of the current collector (3) is included, and the overcoat layer (5) includes hard carbon.
3
EP3796425A1
LITHIUM ION SECONDARY BATTERY ELECTRODE
Publication/Patent Number: EP3796425A1 Publication Date: 2021-03-24 Application Number: 19802828.4 Filing Date: 2019-05-08 Inventor: Tanaami, Kiyoshi   Tanaka, Akihisa   Aoyagi, Shintaro   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M4/13 Abstract: Provided is a lithium ion secondary battery electrode allowing excellent charge-and-discharge cycle characteristics to be obtained when used in a lithium ion secondary battery. The lithium ion secondary battery electrode includes a current collector composed of a metal porous body having a three-dimensional network structure in which columnar skeletons are three-dimensionally connected, a first active material held on one side of the current collector, and a second active material held on the other side of the current collector.
4
US2021119202A1
LITHIUM ION SECONDARY BATTERY ELECTRODE
Publication/Patent Number: US2021119202A1 Publication Date: 2021-04-22 Application Number: 17/054,602 Filing Date: 2019-05-08 Inventor: Tanaami, Kiyoshi   Tanaka, Akihisa   Aoyagi, Shintaro   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M4/36 Abstract: Provided is a lithium ion secondary battery electrode allowing excellent charge-and-discharge cycle characteristics to be obtained when used in a lithium ion secondary battery. The lithium ion secondary battery electrode includes a current collector composed of a metal porous body having a three-dimensional network structure in which columnar skeletons are three-dimensionally connected, a first active material held on one side of the current collector, and a second active material held on the other side of the current collector.
5
EP3796453A1
LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: EP3796453A1 Publication Date: 2021-03-24 Application Number: 19802623.9 Filing Date: 2019-05-09 Inventor: Tanaami, Kiyoshi   Tanaka, Akihisa   Aoyagi, Shintaro   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M10/058 Abstract: Provided is a lithium ion secondary battery having excellent energy density and output density as well as excellent charge-and-discharge cycle characteristics. In a lithium ion secondary battery 1, a positive electrode 2 and a negative electrode 3 are alternately adj acent to each other via separators 4 and 5. The positive electrode 2 includes a positive electrode current collector composed of a metal porous body, a first positive electrode active material 21 held on one side of the positive electrode current collector, and a second positive electrode active material 22 held on the other side. The negative electrode 3 includes a negative electrode current collector composed of a metal porous body, a first negative electrode active material 31 held on one side of the negative electrode current collector, and a second negative electrode active material 32 held on the other side. The first positive electrode active material 21 faces the first negative electrode active material 31, and the positive electrode active material 22 faces the second negative electrode active material 32.
6
US2021111398A1
ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: US2021111398A1 Publication Date: 2021-04-15 Application Number: 17/070,935 Filing Date: 2020-10-15 Inventor: Tanaami, Kiyoshi   Isogai, Yuji   Aoyagi, Shintaro   Sakai, Hideki   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M4/36 Abstract: To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can suppress an increase in electron resistance of a current collector area, and improve heat dissipation, in an electrode for lithium ion secondary batteries establishing a foam metal body as the collector. In the electrode for lithium ion secondary batteries made using a foam porous body consisting of metal as a current collector, the electrode shape is rectangular, and a current collector region is made to span at least two adjacent sides.
7
US2021111411A1
ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: US2021111411A1 Publication Date: 2021-04-15 Application Number: 17/069,841 Filing Date: 2020-10-13 Inventor: Tanaami, Kiyoshi   Isogai, Yuji   Aoyagi, Shintaro   Sakai, Hideki   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M4/66 Abstract: To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can sufficiently secure electron conductivity between a foam metal body and an electrode active material in an electrode for lithium ion secondary batteries which establish a foam metal body as the collector, reduce the resistance of a lithium ion secondary batter, and improve the durability. A carbon layer consisting of carbon material is disposed on a surface of a foam porous body consisting of metal, and used as a collector. More specifically, an electrode for lithium ion secondary batteries includes a collector, and an electrode mixture filled into the collector, in which the collector is made to have a carbon layer consisting of carbon material on a surface of a foam porous body consisting of metal.
8
EP3809490A1
ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: EP3809490A1 Publication Date: 2021-04-21 Application Number: 20201486.6 Filing Date: 2020-10-13 Inventor: Tanaami, Kiyoshi   Isogai, Yuji   Aoyagi, Shintaro   Sakai, Hideki   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: HONDA MOTOR CO., LTD.   SUMITOMO ELECTRIC INDUSTRIES, LTD.   IPC: H01M4/04 Abstract: To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can suppress an increase in electron resistance of a current collector area, and improve heat dissipation, in an electrode for lithium ion secondary batteries establishing a foam metal body as the collector. In the electrode for lithium ion secondary batteries made using a foam porous body consisting of metal as a current collector, the electrode shape is rectangular, and a current collector region is made to span at least two adjacent sides.
9
EP3809491A1
ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: EP3809491A1 Publication Date: 2021-04-21 Application Number: 20201487.4 Filing Date: 2020-10-13 Inventor: Tanaami, Kiyoshi   Isogai, Yuji   Aoyagi, Shintaro   Sakai, Hideki   Okuno, Kazuki   Hosoe, Akihisa   Senoo, Kikuo   Takebayashi, Hiroshi   Assignee: Honda Motor Co., Ltd.   Sumitomo Electric Industries, Ltd.   IPC: H01M4/04 Abstract: To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can sufficiently secure electron conductivity between a foam metal body and an electrode active material in an electrode for lithium ion secondary batteries which establish a foam metal body as the collector, reduce the resistance of a lithium ion secondary batter, and improve the durability. A carbon layer consisting of carbon material is disposed on a surface of a foam porous body consisting of metal, and used as a collector. More specifically, an electrode for lithium ion secondary batteries includes a collector, and an electrode mixture filled into the collector, in which the collector is made to have a carbon layer consisting of carbon material on a surface of a foam porous body consisting of metal.
10
WO2019230322A1
NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: WO2019230322A1 Publication Date: 2019-12-05 Application Number: 2019018564 Filing Date: 2019-05-09 Inventor: Hosoe, Akihisa   Okuno, Kazuki   Senoo, Kikuo   Takebayashi, Hiroshi   Tanaka, Akihisa   Tanaami, Kiyoshi   Aoyagi, Shintaro   Assignee: Sumitomo Electric Industries, Ltd.   Honda Motor Co., Ltd.   IPC: H01M4/134 Abstract: Provided is a negative electrode that is for a lithium ion secondary battery and that can be used to obtain a lithium ion secondary battery having a high capacity and excellent charge/discharge cycle characteristics. This negative electrode 1 for a lithium ion secondary battery comprises a charge collector 3 made of a metal porous body having a three-dimensional reticulated structure 2, and a negative electrode active material 4 held by the charge collector 3. The negative electrode comprises overcoat layers 5 which cover the outer surfaces of the charge collector 3. The overcoat layers 5 contain a hard carbon.
11
WO2019221004A1
LITHIUM ION SECONDARY BATTERY
Publication/Patent Number: WO2019221004A1 Publication Date: 2019-11-21 Application Number: 2019018563 Filing Date: 2019-05-09 Inventor: Hosoe, Akihisa   Okuno, Kazuki   Senoo, Kikuo   Takebayashi, Hiroshi   Tanaka, Akihisa   Tanaami, Kiyoshi   Aoyagi, Shintaro   Assignee: Sumitomo Electric Industries, Ltd.   Honda Motor Co., Ltd.   IPC: H01M4/133 Abstract: A lithium ion secondary battery is provided which has excellent energy density and output density, and which has excellent charge/discharge cycle characteristics. In this lithium ion secondary battery 1, positive electrodes 2 and negative electrodes 3 are adjacent to each other with separators 4 and 5 interposed alternately therebetween. The positive electrodes 2 are formed from a positive electrode current collector formed from a porous metal body, a first positive electrode active material 21 held on one side of the positive electrode current collector, and a second positive electrode active material 22 held on the other side. The negative electrodes 3 are formed from a negative electrode current collector formed from a porous metal body, a first negative electrode active material 31 held on one side of the negative electrode current collector, and a second negative electrode active material 32 held on the other side. The first positive electrode active material 21 faces the first negative electrode active material 31, and the positive electrode active material 22 faces the second negative electrode active material 32.
12
WO2019220985A1
LITHIUM ION SECONDARY BATTERY ELECTRODE
Publication/Patent Number: WO2019220985A1 Publication Date: 2019-11-21 Application Number: 2019018432 Filing Date: 2019-05-08 Inventor: Hosoe, Akihisa   Okuno, Kazuki   Senoo, Kikuo   Takebayashi, Hiroshi   Tanaka, Akihisa   Tanaami, Kiyoshi   Aoyagi, Shintaro   Assignee: Sumitomo Electric Industries, Ltd.   Honda Motor Co., Ltd.   IPC: H01M4/80 Abstract: A lithium ion secondary battery electrode which can obtain excellent charge/discharge cycle characteristics when used in a lithium ion secondary battery is provided. This lithium ion secondary battery electrode includes a current collector formed from a porous metal body having a three-dimensional reticular structure comprising three-dimensionally linked columnar frames, a first active material held on one surface of the current collector, and a second active material held on the other surface of the current collector.
13
JP2018198132A
CATHODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY EMPLOYING THE SAME
Publication/Patent Number: JP2018198132A Publication Date: 2018-12-13 Application Number: 2017101887 Filing Date: 2017-05-23 Inventor: Aoyagi, Shintaro   Tanaami, Kiyoshi   Assignee: HONDA MOTOR CO LTD   IPC: H01M4/13 Abstract: To provide a cathode for lithium ion secondary battery capable of improving not only an output density but also an energy density if used for a lithium ion secondary battery, and the lithium ion secondary battery employing the same.SOLUTION: A cathode for lithium ion secondary battery comprises a cathode active material layer capable of storing and discharging a lithium ion, and a collector. The cathode active material layer consists of: a first cathode active material layer which is positioned at a side in contact with the collector and consists of a high-capacity type cathode active material; and a second cathode active material layer which is positioned at a side in contact with a side of the first cathode active material layer opposite to the collector, consists of a high output type cathode active material that is different from the high capacity type cathode active material, and has a smaller density than that of the first cathode active material layer.SELECTED DRAWING: Figure 1
14
JP6081393B2
POSITIVE ELECTRODE ACTIVE MATERIAL
Publication/Patent Number: JP6081393B2 Publication Date: 2017-02-15 Application Number: 2014028701 Filing Date: 2014-02-18 Inventor: Yoshizawa, Akihiro   Isotani, Yuji   Aoyagi, Shintaro   Assignee: HONDA MOTOR CO LTD   IPC: C01G49/10 Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode active material that is equipped with charge/discharge capacity higher than FeFwhen a nonaqueous electrolyte secondary battery is used.SOLUTION: A positive electrode active material is used in a secondary battery equipped with a nonaqueous electrolyte and is made of an amorphous metal fluoride represented by a general formula: FeNaMF. (M is a metal element of one kind selected from a group consisting of Co
15
US9362561B2
Positive electrode material for non-aqueous electrolyte secondary battery
Publication/Patent Number: US9362561B2 Publication Date: 2016-06-07 Application Number: 14/660,174 Filing Date: 2015-03-17 Inventor: Aoyagi, Shintaro   Isogai, Yuji   Yoshizawa, Akihiro   Assignee: HONDA MOTOR CO., LTD.   IPC: H01M4/58 Abstract: Provided is a positive electrode material for a non-aqueous electrolyte secondary battery, having an energy density and a power density higher than those of a positive electrode material for a non-aqueous electrolyte secondary battery employing only iron fluoride as the positive electrode active material. The positive electrode material for a non-aqueous electrolyte secondary battery is characteristic in including a first positive electrode active material represented by a general formula: Fe(1−x−2y)NaxCoyF3−2(x+2y) (0<x≦0.4, 0<y≦0.1) and a second positive electrode active material composed of LiFePO4 having a surface coated with carbon.
16
US9236605B2
Positive electrode active material for non-aqueous electrolyte secondary battery
Publication/Patent Number: US9236605B2 Publication Date: 2016-01-12 Application Number: 14/025,155 Filing Date: 2013-09-12 Inventor: Omichi, Kaoru   Isogai, Yuji   Aoyagi, Shintaro   Assignee: HONDA MOTOR CO., LTD.   IPC: H01M4/134 Abstract: Provided is a positive electrode active material capable of obtaining high capacity density and also capable of obtaining sufficient charge-discharge characteristics in a region which involves high current density, when the positive electrode active material is used in a non-aqueous electrolyte secondary battery. The positive electrode active material for the non-aqueous electrolyte secondary battery includes FeF3 in which at least a part of a surface thereof is coated with an electroconductive metal oxide.
17
US9466835B2
Cathode active material
Publication/Patent Number: US9466835B2 Publication Date: 2016-10-11 Application Number: 14/621,698 Filing Date: 2015-02-13 Inventor: Aoyagi, Shintaro   Isogai, Yuji   Yoshizawa, Akihiro   Assignee: HONDA MOTOR CO., LTD.   IPC: H01M4/58 Abstract: A cathode active material is provided which has a charge and discharge capacity larger than that of FeF3 when used in a non-aqueous electrolyte secondary battery. The cathode active material for use in secondary batteries with a non-aqueous electrolyte includes an amorphous metal fluoride represented by a general formula Fe(1-x-ny)NaxMyF(3-2(x+ny)), wherein M is a metal element selected from a group consisting of Co, Ni, Cu, Mg, Al, Zn, and Sn, n represents an oxidation number of the metal element M, 0<x≦0.4, and 0≦y≦0.1.
18
JP5966028B2
POSITIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES
Publication/Patent Number: JP5966028B2 Publication Date: 2016-08-10 Application Number: 2015027625 Filing Date: 2015-02-16 Inventor: Yoshizawa, Akihiro   Isotani, Yuji   Aoyagi, Shintaro   Assignee: HONDA MOTOR CO LTD   IPC: H01M4/136 Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode material for nonaqueous electrolyte secondary batteries
19
US2015270546A1
POSITIVE ELECTRODE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Publication/Patent Number: US2015270546A1 Publication Date: 2015-09-24 Application Number: 14/660,174 Filing Date: 2015-03-17 Inventor: Aoyagi, Shintaro   Isogai, Yuji   Yoshizawa, Akihiro   Assignee: HONDA MOTOR CO., LTD.   IPC: H01M4/58 Abstract: Provided is a positive electrode material for a non-aqueous electrolyte secondary battery, having an energy density and a power density higher than those of a positive electrode material for a non-aqueous electrolyte secondary battery employing only iron fluoride as the positive electrode active material. The positive electrode material for a non-aqueous electrolyte secondary battery is characteristic in including a first positive electrode active material represented by a general formula: Fe(1-x-2y)NaxCoyF3-2(x+2y) (0<x≦0.4, 0<y≦0.1) and a second positive electrode active material composed of LiFePO4 having a surface coated with carbon.
20
JP2015195179A
POSITIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES
Publication/Patent Number: JP2015195179A Publication Date: 2015-11-05 Application Number: 2015027625 Filing Date: 2015-02-16 Inventor: Yoshizawa, Akihiro   Isotani, Yuji   Aoyagi, Shintaro   Assignee: HONDA MOTOR CO LTD   IPC: H01M4/136 Abstract: PROBLEM TO BE SOLVED: To provide a positive electrode material for nonaqueous electrolyte secondary batteries
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