Patents by Inventor Hideaki Morishima
Hideaki Morishima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20220288623Abstract: According to an embodiment, a coating head includes a head main body, a first manifold, a first slit, a second manifold, and a second slit. Inside the head main body, the first slit is formed adjacent to the first manifold on a front side, and the second manifold is formed adjacent to the first slit on the front side. The second slit is formed adjacent to the second manifold on the front side, and forms an ejection port to eject a coating liquid from the second manifold to the outside. A dimension of the second slit along a height direction intersecting a front-back direction is larger than that of the first slit along the height direction.Type: ApplicationFiled: September 13, 2021Publication date: September 15, 2022Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroki TASHIRO, Hideaki MORISHIMA, Hironori TAKATSUKA
-
Publication number: 20180301688Abstract: According to one embodiment, a method for producing an electrode, includes applying tensile force. The electrode includes a strip current collector, a current collector exposed portion, and an active material-containing layer. In the applying tensile force, arranging a strip electrode plate on a roller including a step portion and a recessed portion such that the current collector exposed portion is positioned on the step portion and the active material-containing layer is positioned on the recessed portion, and then applying tensile force to the strip electrode plate in a longitudinal direction of the strip electrode plate.Type: ApplicationFiled: June 22, 2018Publication date: October 18, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takashi KOBAYASHI, Hideaki Morishima, Masaomi Nakahata, Kazuhiko Mori, Ikuo Uematsu
-
Patent number: 10038179Abstract: According to one embodiment, a method for producing an electrode, includes applying tensile force. The electrode includes a strip current collector, a current collector exposed portion, and an active material-containing layer. In the applying tensile force, arranging a strip electrode plate on a roller including a step portion and a recessed portion such that the current collector exposed portion is positioned on the step portion and the active material-containing layer is positioned on the recessed portion, and then applying tensile force to the strip electrode plate in a longitudinal direction of the strip electrode plate.Type: GrantFiled: August 16, 2013Date of Patent: July 31, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takashi Kobayashi, Hideaki Morishima, Masaomi Nakahata, Kazuhiko Mori, Ikuo Uematsu
-
Patent number: 9786909Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 ?m and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 ?m or less to a total pore volume is 20% or more.Type: GrantFiled: June 11, 2014Date of Patent: October 10, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hidesato Saruwatari, Hideaki Morishima, Hiroki Inagaki, Norio Takami
-
Patent number: 9543570Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A negative electrode current collector comprises a coated portion on which the negative electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion, in which the negative electrode active material layer is not present. A density of the negative electrode active material layer is within a range of 2.1 g/cc to 2.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.Type: GrantFiled: August 23, 2013Date of Patent: January 10, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki Morishima, Takashi Kobayashi, Masaomi Nakahata, Kazuhiko Mori
-
Publication number: 20160087265Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. At least one of the positive electrode and the negative electrode comprises a current collector made of aluminum or an aluminum alloy and an active material layer laminated on the current collector. The active material layer contains first active material particles having an average particle diameter of 1 ?m or less and a lithium diffusion coefficient of 1×10?9 cm2/sec or less at 20° C., and second active material particles having an average particle diameter of 2 to 50 ?m. A true density of the second active material particles is larger by 0.01 to 2.5 g/cm3 than a true density of the first active material particles.Type: ApplicationFiled: November 17, 2015Publication date: March 24, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Hidesato SARUWATARI, Hiroki INAGAKI, Hideaki MORISHIMA, Shinsuke MATSUNO, Yumi FUJITA, Norio TAKAMI
-
Patent number: 9214671Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. At least one of the positive electrode and the negative electrode comprises a current collector made of aluminum or an aluminum alloy and an active material layer laminated on the current collector. The active material layer contains first active material particles having an average particle diameter of 1 ?m or less and a lithium diffusion coefficient of 1×10?9 cm2/sec or less at 20° C., and second active material particles having an average particle diameter of 2 to 50 ?m. A true density of the second active material particles is larger by 0.01 to 2.5 g/cm3 than a true density of the first active material particles.Type: GrantFiled: February 27, 2013Date of Patent: December 15, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hidesato Saruwatari, Hiroki Inagaki, Hideaki Morishima, Shinsuke Matsuno, Yumi Fujita, Norio Takami
-
Patent number: 9178211Abstract: A method of producing an electrode including decreasing a yield stress of a slurry containing an active material to two-thirds or less, and applying the slurry to a current collector.Type: GrantFiled: October 30, 2007Date of Patent: November 3, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki Morishima, Hiroki Inagaki, Hidesato Saruwatari, Shinsuke Matsuno, Yumi Fujita, Norio Takami
-
Patent number: 9142831Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A positive electrode current collector comprises a coated portion on which the positive electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion in a direction parallel to the first surface, in which the positive electrode active material layer is not present. A density of the positive electrode active material layer is within a range of 3.1 g/cc to 3.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.Type: GrantFiled: August 23, 2013Date of Patent: September 22, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki Morishima, Takashi Kobayashi, Masaomi Nakahata, Kazuhiko Mori
-
Patent number: 9050618Abstract: According to one embodiment, a double-sided coating apparatus includes a first coating head arranged on one side of a raw material to coat the one side with a coating liquid by alternately forming a coating region and a non-coating region in a direction crossing a delivery direction, a second coating head arranged on the other side of the raw material to coat the other side with the coating liquid by alternately forming the coating region and the non-coating region in the direction crossing the delivery direction, and a coating roller arranged near a position on the one side of the raw material and opposite to the second coating head across the raw material and having a large-diameter portion and a small-diameter portion with different diameters along an axial direction with the small-diameter portion opposite to the coating region and the large-diameter portion opposite to the non-coating region.Type: GrantFiled: September 16, 2011Date of Patent: June 9, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ikuo Uematsu, Masaomi Nakahata, Hideaki Morishima, Kenta Fukatsu
-
Publication number: 20140304981Abstract: According to one embodiment, a manufacturing method of an electrode includes supplying a current collector, coating the current collector with a slurry and drying the slurry. In the manufacturing method of the electrode, the current collector is supplied onto a backup roll including annular protruding portions formed on an outer circumferential surface of the backup roll. A surface of the current collector excluding a portion arranged on a plurality of the annular protruding portions is coated with slurry containing an active material. And, then, the slurry is dried.Type: ApplicationFiled: June 26, 2014Publication date: October 16, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki MORISHIMA, Ikuo UEMATSU, Masaomi NAKAHATA
-
Publication number: 20140308434Abstract: According to one embodiment, a manufacturing method of an electrode, includes coating first and second surfaces of a current collector with slurry, and drying. The first surface is coated with the slurry in such a way that a slurry coated portion and a slurry non-coated portion are alternately arranged in a direction perpendicular to a moving direction of the current collector. The slurry non-coated portion is arranged on annular protruding portions of a backup roll. The second surface excluding a portion arranged on the annular protruding portions is coated with the slurry, thereby forming the slurry coated portion. Next, the slurry coated portions are dried.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Hideaki Morishima, Ikuo Uematsu, Masaomi Nakahata, Takeshi Toyoshima
-
Publication number: 20140304982Abstract: According to one embodiment, a manufacturing method of an electrode, includes coating a first surface of a current collector with slurry, coating a second surface of the current collector with the slurry, and drying. The first and second surfaces are coated with the slurry in such a way that a slurry coated portion and a slurry non-coated portion are alternately arranged in a direction perpendicular to a moving direction of the current collector. The slurry non-coated portion is arranged on annular protruding portions of a backup roll. The slurry coated portion is dried by a drying apparatus. A formula (1), 0<L1, and a formula (2), 0<L2, are satisfied.Type: ApplicationFiled: June 26, 2014Publication date: October 16, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki MORISHIMA, Ikuo UEMATSU, Masaomi NAKAHATA, Takeshi TOYOSHIMA
-
Publication number: 20140287309Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 ?m and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 ?m or less to a total pore volume is 20% or more.Type: ApplicationFiled: June 11, 2014Publication date: September 25, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Hidesato SARUWATARI, Hideaki MORISHIMA, Hiroki INAGAKI, Norio TAKAMI
-
Patent number: 8808910Abstract: A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H2<H3, and (H1?H2)?(H3?H2)÷2.Type: GrantFiled: August 30, 2013Date of Patent: August 19, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Morishima, Takashi Kobayashi, Seiichi Hikata, Yoshikazu Kobayashi, Takahisa Ohsaki, Natsuki Toyota, Haruchika Ishii
-
Patent number: 8785052Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 ?m and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 ?m or less to a total pore volume is 20% or more.Type: GrantFiled: October 11, 2013Date of Patent: July 22, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Hidesato Saruwatari, Hideaki Morishima, Hiroki Inagaki, Norio Takami
-
Publication number: 20140038057Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 ?m and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 ?m or less to a total pore volume is 20% or more.Type: ApplicationFiled: October 11, 2013Publication date: February 6, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Hidesato SARUWATARI, Hideaki Morishima, Hiroki Inagaki, Norio Takami
-
Publication number: 20140004419Abstract: A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H2<H3, and (H1?H2)?(H3?H2)÷2.Type: ApplicationFiled: August 30, 2013Publication date: January 2, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Hideaki MORISHIMA, Takashi Kobayashi, Seiichi Hikata, Yoshikazu Kobayashi, Takahisa Ohsaki, Natsuki Toyota, Haruchika Ishii
-
Publication number: 20130344389Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A negative electrode current collector comprises a coated portion on which the negative electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion, in which the negative electrode active material layer is not present. A density of the negative electrode active material layer is within a range of 2.1 g/cc to 2.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.Type: ApplicationFiled: August 23, 2013Publication date: December 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki MORISHIMA, Takashi KOBAYASHI, Masaomi NAKAHATA, Kazuhiko MORI
-
Publication number: 20130344374Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A positive electrode current collector comprises a coated portion on which the positive electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion in a direction parallel to the first surface, in which the positive electrode active material layer is not present. A density of the positive electrode active material layer is within a range of 3.1 g/cc to 3.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.Type: ApplicationFiled: August 23, 2013Publication date: December 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki MORISHIMA, Takashi KOBAYASHI, Masaomi NAKAHATA, Kazuhiko MORI