Patents by Inventor Haruchika Ishii
Haruchika Ishii 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).
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Patent number: 10741896Abstract: According to an embodiment, there is provided a battery system. The battery system includes a first battery and a second battery connected in parallel with the first battery. The first battery includes a lead storage battery. The second battery includes a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode and a negative electrode. The negative electrode includes a negative-electrode-mixture layer, and the negative-electrode-mixture layer contains lithium titanate. The positive electrode contains a positive electrode active material LiMn2-xM(a)xO4. A ratio of a battery capacity of the second battery to a battery capacity of the first battery is in a range of 1/133 to 1/2.Type: GrantFiled: September 9, 2015Date of Patent: August 11, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Haruchika Ishii, Kazuya Kuriyama, Toshihide Arikawa, Hirotada Tahara, Masataka Shikota, Hiroki Inagaki, Yuichi Kikuma, Kengo Kurata, Hirotaka Hayashida, Yoshinao Tatebayashi
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Patent number: 9893377Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The negative electrode of the battery includes a negative electrode active material which can absorb and release lithium ions at a negative electrode potential of 0.4 V (V.S. Li/Li+) or more. The battery satisfying the following equations (I) and (II): 1?Q2/Q1??(I) 0.5?C/A?0.Type: GrantFiled: September 23, 2010Date of Patent: February 13, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Haruchika Ishii, Toshihide Arikawa, Hirotada Tahara, Masataka Shikota, Kazuko Takanezawa, Hiroki Inagaki, Yuichi Kikuma, Yoshiaki Asami
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Patent number: 9673440Abstract: According to one embodiment, there is provided a battery including a case, a lid, an electrode group, an intermediate lead, and a terminal lead. The electrode group has an end face opposed to the lid and includes current collector tabs extending from the end face. The intermediate lead contains an electrode group joint and a lead joint. The terminal lead is electrically connected to the lid and the lead joint of the intermediate lead. Each of the current collector tabs has a tip portion whose width in the direction perpendicular to the extending direction is narrow. The tip portion thereof is electrically connected to the electrode group joint.Type: GrantFiled: March 6, 2014Date of Patent: June 6, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Haruchika Ishii, Eiki Kashiwazaki, Souichi Hanafusa, Natsuki Toyota, Toshifumi Shimizu, Yasuaki Hara, Tatsuya Shinoda
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Patent number: 9601734Abstract: In general, according to one embodiment, there is provided a battery. This battery includes a container, a lid, a gas-relief vent, an electrode group, an intermediate lead, and a terminal lead. The gas-relief vent is provided in the lid. The intermediate lead includes a first lead-joint part, an electrode-group-joint part, and a leg part. The leg part connects the first lead-joint part and the electrode-group-joint part to each other. The first lead-joint part and the electrode-group-joint part are located on planes different from each other.Type: GrantFiled: March 6, 2014Date of Patent: March 21, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Haruchika Ishii, Eiki Kashiwazaki, Souichi Hanafusa, Natsuki Toyota, Tsutomu Matsui, Tatsuya Shinoda
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Publication number: 20150380787Abstract: According to an embodiment, there is provided a battery system. The battery system includes a first battery and a second battery connected in parallel with the first battery. The first battery includes a lead storage battery. The second battery includes a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode and a negative electrode. The negative electrode includes a negative-electrode-mixture layer, and the negative-electrode-mixture layer contains lithium titanate. The positive electrode contains a positive electrode active material LiMn2-x(a)xO4. A ratio of a battery capacity of the second battery to a battery capacity of the first battery is in a range of 1/133 to 1/2.Type: ApplicationFiled: September 9, 2015Publication date: December 31, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Haruchika ISHII, Kazuya KURIYAMA, Toshihide ARIKAWA, Hirotada TAHARA, Masataka SHIKOTA, Hiroki INAGAKI, Yuichi KlKUMA, Kengo KURATA, Hirotaka HAYASHIDA, Yoshinao TATEBAYASHI
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Publication number: 20140272487Abstract: In general, according to one embodiment, there is provided a battery. This battery includes a container, a lid, a gas-relief vent, an electrode group, an intermediate lead, and a terminal lead. The gas-relief vent is provided in the lid. The intermediate lead includes a first lead-joint part, an electrode-group-joint part, and a leg part. The leg part connects the first lead-joint part and the electrode-group-joint part to each other. The first lead-joint part and the electrode-group-joint part are located on planes different from each other.Type: ApplicationFiled: March 6, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Haruchika ISHII, Eiki Kashiwazaki, Souichi Hanafusa, Natsuki Toyota, Tsutomu Matsui, Tatsuya Shinoda
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Publication number: 20140272550Abstract: According to one embodiment, there is provided a battery including a case, a lid, an electrode group, an intermediate lead, and a terminal lead. The electrode group has an end face opposed to the lid and includes current collector tabs extending from the end face. The intermediate lead contains an electrode group joint and a lead joint. The terminal lead is electrically connected to the lid and the lead joint of the intermediate lead. Each of the current collector tabs has a tip portion whose width in the direction perpendicular to the extending direction is narrow. The tip portion thereof is electrically connected to the electrode group joint.Type: ApplicationFiled: March 6, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Haruchika ISHII, Eiki Kashiwazaki, Souichi Hanafusa, Natsuki Toyota, Toshifumi Shimizu, Yasuaki Hara, Tatsuya Shinoda
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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
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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
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Publication number: 20130065124Abstract: 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: November 6, 2012Publication date: March 14, 2013Inventors: Hideaki MORISHIMA, Takashi KOBAYASHI, Seiichi HIKATA, Yoshikazu KOBAYASHI, Takahisa OHSAKI, Natsuki TOYOTA, Haruchika ISHII
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Patent number: 8334071Abstract: 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: September 28, 2009Date of Patent: December 18, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Morishima, Takashi Kobayashi, Seiichi Hikata, Yoshikazu Kobayashi, Takahisa Ohsaki, Natsuki Toyota, Haruchika Ishii
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Publication number: 20120156529Abstract: The disclosure describes a non-aqueous electrolyte battery with an improved cycle life. The non-aqueous electrolyte battery includes a positive electrode including a positive electrode layer, a negative electrode including a negative electrode layer, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte containing a lithium salt. The negative electrode layer may contain a negative electrode active material which can insert and release lithium ions at 0.4 V or more (V.S. Li/Li+). The lithium salt may contains LiPF6 with a concentration of less than 50% (including 0%).Type: ApplicationFiled: July 26, 2011Publication date: June 21, 2012Inventors: Hidetoshi Watanabe, Haruchika Ishii, Hiroki Inagaki, Masataka Shikota, Toshihide Arikawa, Hirotada Tahara, Kazuko Newton, Teruo Hiruma, Yoshiaki Asami, Yuichi Kikuma
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Patent number: 7927740Abstract: A battery pack includes nonaqueous electrolyte batteries each comprising a positive electrode and a negative electrode. The positive electrode contains a lithium-transition metal oxide having a layered crystal structure. The negative electrode contains a lithium-titanium composite oxide having a spinel structure. And the positive electrodes and the negative electrodes satisfy the formula (1) given below: 1.02?X?2??(1) where X is a ratio of an available electric capacity of each of the negative electrodes at 25° C. to an available electric capacity of each of the positive electrodes at 25° C.Type: GrantFiled: October 28, 2005Date of Patent: April 19, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Hiroki Inagaki, Yoshinao Tatebayashi, Hideaki Morishima, Haruchika Ishii, Hidesato Saruwatari, Norio Takami
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Publication number: 20110076557Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The negative electrode of the battery includes a negative electrode active material which can absorb and release lithium ions at a negative electrode potential of 0.4 V (V.S. Li/Li+) or more. The battery satisfying the following equations (I) and (II): 1?Q2/Q1 ??(I) 0.5?C/A?0.Type: ApplicationFiled: September 23, 2010Publication date: March 31, 2011Inventors: Haruchika Ishii, Toshihide Arikawa, Hirotada Tahara, Masataka Shikota, Kazuko Takanezawa, Hiroki Inagaki, Yuichi Kikuma, Yoshiaki Asami
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Publication number: 20100237277Abstract: A nonaqueous electrolyte battery includes a case, a positive electrode housed in the case and including a positive electrode active material containing a lithium-nickel composite oxide and at least one of lithium hydroxide and lithium oxide, the sum of lithium hydroxide and lithium oxide falling within not less than 0.1% to not more than 0.5% by weight based on the total amount of the positive electrode active material, a negative electrode housed in the case and capable of lithium intercalation-deintercalation, and a separator sandwiched between the positive electrode and the negative electrode and impregnated with a nonaqueous electrolyte containing ?-butyrolactone.Type: ApplicationFiled: June 4, 2010Publication date: September 23, 2010Inventors: Haruchika ISHII, Shinsuke MATSUNO, Hidesato SARUWATARI, Hiroki INAGAKI
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Publication number: 20100124694Abstract: A nonaqueous electrolyte battery includes a case, an electrode group, positive electrode tabs and negative electrode tabs. The electrode group comprises a positive electrode, a negative electrode and a separator. The positive electrode, the negative electrode and the separator are spirally coiled in a flat form. The positive electrode tabs are electrically connected to at least two positions among tab positions Pn of the positive electrode and projected from one end surface of the electrode group. The negative electrode tabs are electrically connected to at least two positions among tab positions Nn of the negative electrode and projected from the one end surface.Type: ApplicationFiled: November 12, 2009Publication date: May 20, 2010Inventors: Seiichi HIKATA, Hideaki Morishima, Haruchika Ishii
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Publication number: 20100081052Abstract: 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: September 28, 2009Publication date: April 1, 2010Inventors: Hideaki MORISHIMA, Takashi Kobayashi, Seiichi Hikata, Yoshikazu Kobayashi, Takahisa Ohsaki, Natsuki Toyota, Haruchika Ishii
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Patent number: 7455936Abstract: An electric cell comprising a positive electrode, a negative electrode containing aluminum or aluminum alloy, and an electrolyte arranged between the positive electrode and the negative electrode, wherein the electrolyte includes: at least one ion selected from a group of a sulfate ion (SO42?) and a nitrate ion (NO3?), the concentration of the ion being in the range of 0.2 to 16 M/L; and an additive selected from a group of an organic acid, a salt of the organic acid, a hydrate of the organic acid, an ester of the organic acid, an ion of the organic acid, and derivatives thereof.Type: GrantFiled: August 27, 2004Date of Patent: November 25, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Haruchika Ishii, Norio Takami, Tomokazu Morita, Mitsuo Kasori
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Publication number: 20080241687Abstract: A nonaqueous electrolyte battery includes a positive electrode and a negative electrode. The negative electrode includes a negative electrode current collector, a negative electrode layer and a top part. The positive electrode includes an end portion as viewed in a length direction of the positive electrode. The top part is gradually decreased in width towards an apex of the top part on one end of the current collector as viewed in a length direction of the current collector. The apex is arranged at a position corresponding to one-half of a maximum width of the negative electrode layer. The top part has a shape symmetric with respect to the position, and is arranged between the end portion of the positive electrode and a positive electrode portion outward of the end portion of the positive electrode. The end portion is arranged at a position preceding the top part.Type: ApplicationFiled: March 13, 2008Publication date: October 2, 2008Inventors: Haruchika ISHII, Hiroki INAGAKI, Norio TAKAMI
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Patent number: 7273675Abstract: The invention provides a battery including a power generating element container, a positive electrode mixture, and a hydrogen gas permeable sheet provided in an opening of the power generating element container, the hydrogen gas permeable sheet having a water repellence of 2 kPa or more and a He gas permeability at 30° C. in a range of 2×10?6 to 10000×10?6 (cm3 (STP) cm/sec·cm2·cmHg), wherein a distance between the positive electrode mixture and the hydrogen gas permeable sheet gradually decreases toward a side wall of the power generating element container.Type: GrantFiled: December 23, 2003Date of Patent: September 25, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Hidesato Saruwatari, Haruchika Ishii, Takahiro Hirai, Norio Takami