Patents by Inventor Satoko Fujiyama
Satoko Fujiyama 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: 11652237Abstract: Provided is a nonaqueous electrolyte solution for batteries, which contains an additive A that is composed of a boron compound represented by formula (1), and an additive B that has a lower reductive decomposition potential than the Additive A, in which n represents an integer from 1 to 5, M+ represents an Li+ ion or an H+ ion, and when n is an integer from 2 to 5, more than one M+ may be the same as or different from each other.Type: GrantFiled: August 13, 2018Date of Patent: May 16, 2023Assignee: MITSUI CHEMICALS, INC.Inventors: Satoko Fujiyama, Kei Sugawara
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Publication number: 20220231336Abstract: A lithium borate compound represented by the following Formula (I). In Formula (I), each of R1, R2, and R3 independently represents a hydrocarbon group having from 1 to 20 carbon atoms, which may have a substituent. R10 represents a fluorine atom, a hydrocarbon-oxy group having from 1 to 10 carbon atoms, a hydrocarbon group having from 1 to 10 carbon atoms, or a fluorinated hydrocarbon group having from 1 to 10 carbon atoms.Type: ApplicationFiled: March 12, 2020Publication date: July 21, 2022Applicant: MITSUI CHEMICALS, INC.Inventors: Kenichi GOTO, Shigeru MIO, Satoko FUJIYAMA, Kei SUGAWARA, Mitsuaki CHIDA
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Publication number: 20220158247Abstract: A nonaqueous electrolytic solution for a battery that includes a negative electrode active material containing graphite, the nonaqueous electrolytic solution for a battery containing a compound represented by the following Formula (1): in Formula (1), R represents a fluorine atom or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms.Type: ApplicationFiled: March 18, 2020Publication date: May 19, 2022Applicant: MITSUI CHEMICALS, INC.Inventors: Kei SUGAWARA, Satoko FUJIYAMA
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Publication number: 20220029199Abstract: A non-aqueous electrolyte solution for a battery, wherein the non-aqueous electrolyte solution is used for a lithium secondary battery comprising lithium iron phosphate as a positive electrode active material, and the non-aqueous electrolyte solution comprises a compound represented by the following Formula (1). In Formula (1), R11 and R12 each independently represent an aliphatic group having from 1 to 12 carbon atoms or a fluorinated aliphatic group having from 1 to 12 carbon atoms.Type: ApplicationFiled: November 29, 2019Publication date: January 27, 2022Applicant: MITSUI CHEMICALS, INC.Inventors: Satoko FUJIYAMA, Kei SUGAWARA
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Publication number: 20210296703Abstract: A non-aqueous electrolyte solution for a battery, includes: an additive A which is at least one selected from the group consisting of compounds represented by the following Formula (A); an additive B which is at least one selected from the group consisting of lithium monofluorophosphate and lithium difluorophosphate; and an additive C which is at least one selected from the group consisting of compounds containing a sulfur-oxygen bond. In Formula (A), R1 represents a fluorine atom, or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms; and each of R2 to R4 independently represents a hydrogen atom, a fluorine atom, a hydrocarbon group having from 1 to 6 carbon atoms, or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms.Type: ApplicationFiled: July 25, 2019Publication date: September 23, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Kei SUGAWARA, Satoko FUJIYAMA, Hitoshi ONISHI
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Publication number: 20210253602Abstract: The present disclosure provides a lithium borate compound represented by the following Formula (I), an additive for a lithium secondary battery, which contains the lithium borate compound, a non-aqueous electrolyte solution for a lithium secondary battery, a lithium secondary battery precursor, and a lithium secondary battery and method of producing the same. In Formula (I), R represents a single bond or an alkylene group having from 1 to 4 carbon atoms.Type: ApplicationFiled: July 17, 2019Publication date: August 19, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Han ZHANG, Yusuke SHIMIZU, Satoko FUJIYAMA, Kenichi GOTO, Shigeru MIO
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Publication number: 20210126288Abstract: Provided is a nonaqueous electrolyte solution for batteries, which contains an additive A that is composed of a boron compound represented by formula (1), and an additive B that has a lower reductive decomposition potential than the Additive A, in which n represents an integer from 1 to 5, M+ represents an Li+ ion or an H+ ion, and when n is an integer from 2 to 5, more than one M+ may be the same as or different from each other.Type: ApplicationFiled: August 13, 2018Publication date: April 29, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Satoko FUJIYAMA, Kei SUGAWARA
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Publication number: 20210043972Abstract: A nonaqueous electrolytic solution for a battery, for use in a battery including an aluminum-containing positive electrode current collector, includes an electrolyte that includes a compound represented by the following Formula (1), and an additive A that is a fluorine-containing compound other than compounds represented by Formula (1). The concentration of the compound represented by Formula (1) is from 0.1 mol/L to 2.0 mol/L. In Formula (1), each of le and R2 independently represents a fluorine atom, a trifluoromethyl group, or a pentafluoroethyl group.Type: ApplicationFiled: January 24, 2019Publication date: February 11, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Kei SUGAWARA, Satoko FUJIYAMA, Hitoshi ONISHI
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Publication number: 20210043971Abstract: A nonaqueous electrolytic solution for a battery, the solution including: an additive A that is a compound (A); an additive B that is at least one selected from the group consisting of lithium monofluorophosphate and lithium difluorophosphate; an additive C that is a compound (C); and an electrolyte that is a lithium salt other than the additive A, the additive B, or the additive B. R1 represents a C1-6 hydrocarbon group substituted with F, a C1-6 hydrocarbonoxy group substituted with F, or F. M represents B or P. Each X represents a halogen. Each R represents a C1-10 alkylene, a C1-10 haloalkylene, a C6-20 arylene, or a C6-20 haloarylene (R may contain a substituent or a hetero atom within the structure). m represents 1 to 3. n represents 0 to 4. q represents 0 or 1.Type: ApplicationFiled: March 27, 2018Publication date: February 11, 2021Applicant: Mitsui Chemicals, Inc.Inventors: Satoko FUJIYAMA, Kei SUGAWARA, Hitoshi ONISHI
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Publication number: 20200203768Abstract: Provided is a lithium secondary battery, including: a positive electrode containing a positive electrode active material that contains a lithium transition metal compound X, which is at least one selected from the group consisting of a lithium transition metal composite oxide and a lithium transition metal phosphate, a ratio of Mn in transition metal elements contained in the lithium transition metal compound X being from 0 mol % to less than 50 mol %; a negative electrode; and a nonaqueous electrolyte solution containing a boron compound represented by the following Formula (1): in Formula (1), n represents an integer from 1 to 5, M+ represents an Li+ ion or an H+ ion, and when n is an integer from 2 to 5, more than one M+ may be the same as or different from each other.Type: ApplicationFiled: August 13, 2018Publication date: June 25, 2020Applicant: MITSUI CHEMICALS, INC.Inventors: Satoko FUJIYAMA, Kei SUGAWARA
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Patent number: 10476108Abstract: A non-aqueous electrolyte solution for a secondary battery, including a boron compound represented by Formula (1). In Formula (1), R represents an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or a group represented by Formula (2). In Formula (2), each of R1 to R3 independently represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or an aryl group having from 6 to 12 carbon atoms, and * represents a bonding site with an oxygen atom in Formula (1).Type: GrantFiled: November 2, 2016Date of Patent: November 12, 2019Assignees: MITSUI CHEMICALS, INC., GS YUASA INTERNATIONAL LTD.Inventors: Masataka Miyasato, Takashi Hayashi, Satoko Fujiyama, Akira Kishimoto, Hiroe Nakagawa
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Patent number: 10323050Abstract: A non-aqueous electrolyte solution for a battery, including a compound represented by formula (1), wherein each A represents P or P?O; each R represents H, a halogen, an alkyl, an aryl, an alkoxy or an aryloxy; each X represents H, an alkyl, an aryl, an alkali metal or formula (2); each Y represents H, a halogen, an alkyl, an aryl, an alkoxy, an aryloxy or formula (3); each Z represents H, an alkyl, an aryl or OZ1; Z1 represents H, an alkyl, an aryl, an alkali metal, formula (2), or formula (4); each M represents an alkali metal; n is 1 or more; m is 1 or more; l is 1 or more; a sum of n, m and l in one molecule is from 1 to 200; and each * represents a position of bonding:Type: GrantFiled: April 21, 2014Date of Patent: June 18, 2019Assignee: MITSUI CHEMICALS, INC.Inventors: Masataka Miyasato, Satoko Fujiyama, Takashi Hayashi, Takeshi Kobayashi
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Publication number: 20180233777Abstract: A non-aqueous electrolyte solution for a secondary battery, including a boron compound represented by Formula (1). In Formula (1), R represents an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or a group represented by Formula (2). In Formula (2), each of R1 to R3 independently represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or an aryl group having from 6 to 12 carbon atoms, and * represents a bonding site with an oxygen atom in Formula (1).Type: ApplicationFiled: November 2, 2016Publication date: August 16, 2018Applicants: MITSUI CHEMICALS, INC., GS YUASA INTERNATIONAL LTD.Inventors: Masataka MIYASATO, Takashi HAYASHI, Satoko FUJIYAMA, Akira KISHIMOTO, Hiroe NAKAGAWA
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Patent number: 9899704Abstract: A non-aqueous electrolyte solution for a battery includes: an additive A which is a compound represented by formula (I); and an additive B which is at least one selected from the group consisting of an aromatic compound having at least one of a halogen atom or an alkyl group and a carbamate, and which is a compound other than carbonates or a cyclic sulfates. In formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III) and R2 represents H, a C1-6 alkyl group, a group represented by formula (II), or a group represented by formula (III); or R1 and R2 represent groups which combine to form a benzene ring or cyclohexyl ring. In formula (II), R3 represents a halogen atom, a C1-6 alkyl group, a C1-6 alkyl halide group, a C1-6 alkoxy group, or a group represented by formula (IV).Type: GrantFiled: September 17, 2014Date of Patent: February 20, 2018Assignee: MITSUI CHEMICALS, INC.Inventors: Masataka Miyasato, Satoko Fujiyama, Takashi Hayashi
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Publication number: 20170346127Abstract: A lithium secondary battery including: a positive electrode which contains a positive electrode active material capable of absorbing and desorbing lithium; a negative electrode which contains a negative electrode active material capable of absorbing and desorbing lithium; and a non-aqueous electrolytic solution, wherein at least one of the positive electrode or the negative electrode contains a polymer that is a reaction product of a defined compound (A) and a defined compound (B) which is different from compound (A), and the non-aqueous electrolytic solution contains an additive (X). The additive (X) is at least one compound selected from the group consisting of: a carbonate compound having a carbon-carbon unsaturated bond, a carbonate compound having a halogen atom, an alkali metal salt, a sulfonic acid ester compound, a sulfuric acid ester compound, a nitrile compound, a dioxane compound, and a substituted aromatic hydrocarbon compound.Type: ApplicationFiled: October 22, 2015Publication date: November 30, 2017Applicant: MITSUI CHEMICALS, INC.Inventors: Han ZHANG, Ayumi KOISO, Akihito SHIGEMATSU, Yu IIMURO, Keita NAGAKAWA, Mitsuaki CHIDA, Takaomi HAYASHI, Hitoshi ONISHI, Masataka MIYASATO, Satoko FUJIYAMA
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Publication number: 20170309971Abstract: An electrode for a lithium battery, containing a current collector (A) and a mixture layer (B) contacting the current collector (A) and including an active material (a), an organic solvent binder (b), a conduction assistant (c) comprising carbon black in which an average particle diameter of a primary particle is 1 ?m or less, and a nitrogen-containing polymer (d).Type: ApplicationFiled: September 30, 2015Publication date: October 26, 2017Applicant: Mitsui Chemicals, Inc.Inventors: Han ZHANG, Ayumi KOISO, Akihito SHIGEMATSU, Yu IIMURO, Keita NAGAKAWA, Mitsuaki CHIDA, Takaomi HAYASHI, Hitoshi ONISHI, Masataka MIYASATO, Satoko FUJIYAMA
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Patent number: 9425484Abstract: The invention provides a non-aqueous electrolyte solution containing a phosphonosulfonic acid compound represented by formula (I): wherein, in formula (I), R1, R2 and R3 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a haloalkyl group having 1 to 6 carbon atoms, a phenyl group, a benzyl group, or a group represented by formula (II); R4 and R5 each independently represent a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms; and n represents an integer from 1 to 6; and wherein, in formula (II), R6, R7 and R8 each independently represent an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a benzyl group; m represents an integer from 0 to 2; and * represents a position of bonding with the oxygen atom in formula (I).Type: GrantFiled: October 19, 2012Date of Patent: August 23, 2016Assignee: MITSUI CHEMICALS, INC.Inventors: Shigeru Mio, Mitsuo Nakamura, Hidenobu Nogi, Satoko Fujiyama, Hidetoshi Tsunoda
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Publication number: 20160211551Abstract: A non-aqueous electrolyte solution for a battery includes: an additive A which is a compound represented by formula (I); and an additive B which is at least one selected from the group consisting of an aromatic compound having at least one of a halogen atom or an alkyl group and a carbamate, and which is a compound other than carbonates or a cyclic sulfates. In formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III) and R2 represents H, a C1-6 alkyl group, a group represented by formula (II), or a group represented by formula (III); or R1 and R2 represent groups which combine to form a benzene ring or cyclohexyl ring. In formula (II), R3 represents a halogen atom, a C1-6 alkyl group, a C1-6 alkyl halide group, a C1-6 alkoxy group, or a group represented by formula (IV).Type: ApplicationFiled: September 17, 2014Publication date: July 21, 2016Applicant: Mitsui Chemicals, Inc.Inventors: Masataka MIYASATO, Satoko FUJIYAMA, Takashi HAYASHI
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Publication number: 20160108070Abstract: A non-aqueous electrolyte solution for a battery, including a compound represented by formula (1), wherein each A represents P or P?O; each R represents H, a halogen, an alkyl, an aryl, an alkoxy or an aryloxy; each X represents H, an alkyl, an aryl, an alkali metal or formula (2); each Y represents H, a halogen, an alkyl, an aryl, an alkoxy, an aryloxy or formula (3); each Z represents H, an alkyl, an aryl or OZ1; Z1 represents H, an alkyl, an aryl, an alkali metal, formula (2), or formula (4); each M represents an alkali metal; n is 1 or more; m is 1 or more; l is 1 or more; a sum of n, m and l in one molecule is from 1 to 200; and each * represents a position of bonding:Type: ApplicationFiled: April 21, 2014Publication date: April 21, 2016Applicant: MITSUI CHEMICALS, INC.Inventors: Masataka MIYASATO, Satoko FUJIYAMA, Takashi HAYASHI, Takeshi KOBAYASHI
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Patent number: 9227950Abstract: A non-aqueous electrolyte solution containing a cyclic sulfate compound represented by formula (I) is provided, wherein in formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III); R2 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a group represented by formula (II), or a group represented by formula (III); and in formula (II), R3 represents a halogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogenated alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or a group represented by formula (IV).Type: GrantFiled: October 21, 2011Date of Patent: January 5, 2016Assignee: MITSUI CHEMICALS, INC.Inventors: Shigeru Mio, Mitsuo Nakamura, Kaichiro Haruta, Hidenobu Nogi, Satoko Fujiyama, Takashi Hayashi, Hidetoshi Tsunoda