Nec Corporation

Hitachi-high-technologies Corporation

Seiko Epson Corporation

Dai Nippon Printing Co., Ltd.

Makiko Takahashi

Takehiro Noguchi

Yuukou Katou

Hideaki Sasaki

Muneo Maeshima

Yasunori Shoji

Hitoshi Ota

Hiroshi Ishikawa

Kyoko Imai

Chihiro Uematsu

Shin Serizawa

Kaoru Watanabe

Kohshi Maeda

Akinobu Nakamura

Masanori Iwasaki

Emiko Fujii

Satoshi Takimoto

There is provided a container that makes it possible to suppress intrusion of bacteria from the tip of a pleat part into the inside of the container. The container includes: a main body that includes a body part defining a containing portion and a flange part extending outward from an upper portion of the body part; and a lid that is joined to the flange part of the main body via an outer edge seal portion so as to cover the containing portion, the lid being formed by a lid member folded back at a fold-back portion such that portions of the lid member overlap each other. The lid has: a pleat part that includes the portions of the lid member overlapping each other and that extends from an edge of one side to an edge of the other side of the lid in a first direction; and a first lid part and a second lid part that are formed by the lid member and that are arranged on opposite sides of the pleat part. The pleat part includes: a pleat seal portion in which inner surfaces of the portions of the lid member are joined together and that extends from the edge of the one side to the edge of the other side of the lid in the first direction; and a steam passing portion that includes a through hole or a cutout formed in the pleat seal portion. Seal strength of the pleat seal portion is lower than that of the outer edge seal portion.

Container and method for manufacturing container

The present invention relates to a positive electrode comprising a Mn composite oxide having a tetragonal structure represented by formula (1): Li(MMnY)(OZ)(wherein 1&#x3c;a&#x2264;2.6, 0&#x2264;x&#x2264;1.2, 0&#x2264;y, x+y&#x3c;2, 0&#x2264;w&#x2264;1; M is at least one selected from the group consisting of Co, Ni, Fe, Cr and Cu; Y is at least one selected from the group consisting of Li, B, Na, Mg, Al, Ti, Si, K and Ca; Z is at least one of F or Cl; and a composite oxide having a layered structure represented by formula (2): Li(LiMY)O(wherein 0&#x2264;x&#x3c;0.3, 0&#x2264;y&#x3c;0.3; M is at least one selected from the group consisting of Co, Fe, Ni and Mn; Y is at least one selected from the group consisting of Mg, Al, Zr, Ti and Zn. According to the present invention, a lithium secondary battery having a high capacity and being excellent in cycle life can be provided.

Positive electrode and secondary battery using same

The present invention provides a lithium ion secondary battery having excellent high temperature cycle characteristics. The present invention relates to an electrolyte solution containing a non-aqueous electrolyte solvent containing two or more open chain sulfone compounds represented by a specific formula and one or more carbonate ester compounds represented by a specific formula; and to a secondary battery comprising these.

Electrolyte solution for secondary battery and secondary battery using same

The present invention relates to a nonaqueous electrolyte solution comprising a nonaqueous electrolyte solvent which comprises a fluorine-containing phosphate ester represented by a specific formula, a fluorine-containing ether represented by a specific formula, and an open-chain or cyclic acid anhydride. According to the present invention, there is provided an electrolyte solution capable of realizing a lithium secondary battery having an excellent cycle characteristics with little gas generation after charge-discharge cycles.

Electrolyte solution and secondary battery using same

The present invention relates to a secondary battery electrolyte, which contains a first fluorine-containing ether compound, a second fluorine-containing ether compound, and at least one selected from fluorine-containing phosphate ester compounds and sulfone compounds, wherein the fluorine substitution rate of the first fluorine-containing ether compound is lower than that of the second fluorine-containing ether compound, and the content of the first fluorine-containing ether compound is higher than that of the second fluorine-containing ether compound. According to the present invention, with respect to batteries operating at a high voltage, and batteries supposed to be used at a high temperature for a long period, there can be provided a lithium secondary battery suppressed in the decomposition reaction of the electrolyte and improved in the life characteristics.

Secondary battery electrolyte and secondary battery

An object of the present invention is to provide a secondary battery having high energy density with long-term life. The present invention relates to a secondary battery comprising a negative electrode comprising a silicon-containing compound and an electrolyte solution comprising a fluorine-containing ether compound, a fluorine-containing phosphoric acid ester, a sulfone compound and a cyclic carbonate compound in a predetermined amount respectively.

Secondary battery

The present invention is a lithium ion secondary battery comprising a positive electrode and a non-aqueous electrolyte solution comprising a non-aqueous electrolyte solvent, wherein the positive electrode comprises a positive electrode active material having an operating potential at 4.5 V or higher versus lithium metal, the non-aqueous electrolyte solvent comprises a fluorinated phosphate ester represented by a predetermined formula and at least one selected from the group consisting of sulfone compounds represented by predetermined formulae, and the sulfone compound is included in an amount of 5 volume % or more in the non-aqueous electrolyte solvent.

Lithium ion secondary battery

An embodiment of the present invention relates to a lithium secondary battery comprising a nonaqueous electrolytic solution comprising a phosphate compound represented by the following general formula (1): O&#x2550;P(O&#x2014;R)(O&#x2014;R)(O&#x2014;R) (1), wherein R, R, and Rare each alkyl group or the like or a group comprising an ether bond represented by &#x2014;R&#x2014;O&#x2014;R(Rrepresents alkylene group, and Rrepresents alkyl group), and at least one of R, R, and Ris a group comprising an ether bond, and at least one of R, R, and Rcontains fluorine, and a positive electrode active material having a charge and discharge region of 4.5 V or more versus lithium.

Lithium secondary battery and production method therefor

A secondary battery having an improved life characteristics is provided by the use of a positive electrode active material for a secondary battery, comprising (a) a surface layer comprising a lithium metal composite oxide having a spinel crystal structure represented by space group Fd-3m, and (b) an internal portion comprising a lithium metal composite oxide having a spinel crystal structure represented by space group P432.

Positive electrode active material for secondary battery, method for producing same and secondary battery

The present invention relates to a lithium secondary battery, comprising wherein Rto Reach independently represents aliphatic hydrocarbon group or fluorinated aliphatic hydrocarbon group, wherein the group may have a substituent, and n represents an integer of 1 or more, with the proviso that when n is 2 or more, two or more R(s) may be the same as, or different from each other and two or more R(s) may be the same as, or different from each other; and wherein Rto Reach independently represents aliphatic hydrocarbon group or fluorinated aliphatic hydrocarbon group, wherein the group may have a substituent, with the proviso that at least one of Rto Ris fluorinated aliphatic hydrocarbon group.

Lithium secondary battery

The present invention relates to a secondary battery cg a positive electrode capable of absorbing and releasing lithium, and a electrolyte solution containing a non-aqueous electrolytic solvent, wherein the positive electrode has a positive electrode active material which operates at 4.5 V or more relative to lithium, and wherein the non-aqueous electrolytic solvent contains a sulfone compound represented by a predetermined formula and a fluorinated ether compound represented by a predetermined formula.

An object of the present invention is to provide a battery system improved in output characteristics and/or storage characteristic while taking advantage of high energy density of a lithium ion secondary battery comprising a positive electrode containing a positive electrode active material having an operating potential of 4.5 V or more relative to a lithium metal. The present invention relates to a battery system having a first battery consisting of a 5 V-level battery(s), a second battery consisting of a 4 V-level battery(s), and a control system.

Lithium ion secondary battery system

A nucleic acid extractor reducing the possibility of cross contamination and a gene analysis apparatus having a nucleic acid amplification function and a detection function are provided. The nucleic acid extractor has a kit for nucleic acid extraction using silica-coated magnetic beads under the presence of a chaotropic agent, and includes a magnet coveraccommodating a magnetin the inside and separating the magnetand a reaction container, a wall partcovering the outside of the reaction containerin a state of accommodating at least a portion of the magnet coverin the reaction container, and a upper portioncovering a space above the reaction containerin a state of accommodating at least a portion of the magnet coverin the reaction container. Scattering of liquid and aerosol can be prevented and the possibility of cross contamination can be reduced.

Kit for nucleic acid extraction and a nucleic acid extractor

A lithium ion secondary battery which is a non-aqueous electrolyte secondary battery comprising a positive electrode comprising a positive electrode active material capable of absorbing and releasing lithium, and an electrolyte solution comprising a non-aqueous electrolyte solvent, wherein the positive electrode comprises a sulfate group, and the non-aqueous electrolyte solvent comprises a sulfone compound represented by a specified formula.

There is provided a secondary battery comprising: a positive electrode capable of intercalating and deintercalating a lithium ion; a negative electrode capable of intercalating and deintercalating a lithium ion; and an electrolytic solution, wherein the electrolytic solution comprises: a fluorine-containing cyclic ether compound represented by the following formula (1); and at least one selected from a fluorine-containing chain ether compound or a fluorine-containing phosphate ester compound; wherein Rto Rare each independently selected from a hydrogen atom, a fluorine atom, a chlorine atom, or a fluorine-substituted, chlorine-substituted, or unsubstituted alkyl group, and at least one of Rto Ris selected from a fluorine atom or a fluorine-substituted alkyl group.

Growing community of inventors

Tokyo, Japan

Makiko Takahashi