公开(公告)号：JP2000299113A

公开(公告)日：2000-10-24

申请号：JP2000033473

申请日：2000-02-10

Applicant: TORAY INDUSTRIES

Inventor： MORIKAWA HIROBUMI ,  KIDAI MASAYUKI ,  KOJIMA SADAO

IPC: H01B5/00 ,  H01M4/86 ,  H01M4/96 ,  H01M8/02 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To reduce electric resistance, improve gas permeability and improve jointing to a catalyst layer of a cell by forming the porous structure of one side layer of sheet material mainly composed of conductive material, to be coarse, and forming the porous structure of the other side layer to be dense. SOLUTION: The sheet material is formed in coarse and dense structure combining fibrous conductive material 5-10 μm in diameter and 1 mm or more in fiber length and fibrous conductive material 5-10 μm in diameter and less than 1 mm in fiber length. A conductive sheet of coarse and dense structure can be formed by forming a coarse porous structure surface of the fibrous conductive material 1 mm or more in fiber length and forming a denser porous structure surface of the fibrous conductive material less than 1 mm in fiber length. It is also desirable to form the conductive sheet of coarse and dense structure using an unwoven fabric structure sheet using carbon fiber 1-30 mm in fiber length for the coarse porous structure surface and using carbon fiber less than 1 mm in fiber length for the dense porous structure surface.

公开(公告)号：JP2000080166A

公开(公告)日：2000-03-21

申请号：JP19140399

申请日：1999-07-06

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  MORIKAWA HIROBUMI

IPC: B01D71/68 ,  B01J39/05 ,  B01J39/18 ,  B01J39/19 ,  B01J39/20 ,  B01J41/12 ,  B01J41/13 ,  B01J45/00 ,  B01J47/12 ,  B01J47/127 ,  C08G75/02 ,  C08G75/18 ,  C08G75/20 ,  C08J5/22 ,  C08L71/02 ,  C08L81/02 ,  C25B13/08 ,  H01B1/06 ,  H01M8/02

Abstract: PROBLEM TO BE SOLVED: To provide polyelectrolytes excellent in resistance to acids and alkalis and oxidation resistance, heat resistance and solvent resistance, a method for preparing the same and further, ion exchangers using the same. SOLUTION: Ion-exchange groups are introduced into a polyarylene sulfide sulfone and/or polyarylene sulfone. Further, polyelectrolytes containing a base polymer and a polyarylene sulfide sulfone and/or polyarylene sulfone and ion- exchange groups are introduced into the base polymer. Further, when the average degree X of oxidation of the sulfur atom in the sulfide group (-S-), the sulfoxide group (-SO-) and the sulfone group (-SO2-) which are contained in the polyarylene sulfide sulfone and/or polyarylene sulfone is represented in the form of (-SOx-), x is set in the range of 0.8-2.0.

公开(公告)号：JPH11185798A

公开(公告)日：1999-07-09

申请号：JP34762397

申请日：1997-12-17

Applicant: TORAY INDUSTRIES

Inventor： ADACHI MASAYA ,  HASHISAKA KAZUHIKO ,  KIDAI MASAYUKI

IPC: H01M10/05 ,  H01M4/13 ,  H01M4/131 ,  H01M4/525 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0587 ,  H01M10/38 ,  H01M4/02 ,  H01M4/58 ,  H01M10/40

Abstract: PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery which can reduce or prevent rupture or firing of the battery even when a physical impact is applied to the battery can in the charged condition. SOLUTION: A non-aqueous electrolyte secondary battery has a wound electrode body structured so that a positive electrode sheet 6 containing positive electrode active material and a negative electrode sheet 5 containing negative electrode active material are wound together opposingly with a separator interposed, wherein the periphery of the wound electrode body is arranged so that an exposed metal part equipotential to the positive electrode and an exposed metal part iquipotential to the negative electrode are confronting for a length over one turn, and the inner surface of the battery can 1 as negative electrode is positioned opposing to at least part of the exposed metal part equipotential to the positive electrode with an insulating material interposed, and this secondary battery is characterized by that its electrolytic solution occupies 30-42% by volume of the internal part surrounded by a battery lid and the can.

公开(公告)号：JPH10154531A

公开(公告)日：1998-06-09

申请号：JP31342796

申请日：1996-11-25

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TSUKAMOTO JUN ,  TANIGUCHI TAKASHI

IPC: H01M10/05 ,  C01B31/02 ,  C01B31/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide a battery excellent in safety by containing a radical capturing agent in a secondary battery using a positive electrode, a negative electrode and nonaqueous electrolyte. SOLUTION: For example, besides hindered amine and the like, hindered phenol and the like and hydroquinone and the like used without being particularly limited, an ultraviolet ray absorbent is also suitably used as a radical capturing agent. An adding quantity of the radical capturing agent becomes different by a battery internal part to be added, but 0.1 to 30% is used in the weight ratio to an electrode such as positive electrode and a negative electrode, electrolyte or a separator or the like. Preferably, it is set to 1 to 20%. When it is little, an effect is hardly obtained, and when it is too much, there is a case where charge-discharge performance of a battery become insufficient. An Li compound such as metallic Li and Li alloy, a carbon material capable of doping an Li ion, a transition metal compound or the like can be cited as a negative electrode active material used in a secondary battery.

公开(公告)号：JPH09147918A

公开(公告)日：1997-06-06

申请号：JP30447195

申请日：1995-11-22

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TSUKAMOTO JUN ,  TANIGUCHI TAKASHI

IPC: D01F9/22 ,  H01M4/131 ,  H01M4/133 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

Abstract: PROBLEM TO BE SOLVED: To provide a secondary battery, in which reduction in high output capacity/low output capacity is suppressed even if an electrode formed of a powder molding is thick, by limiting a relationship between conductivity and viscosity of a nonaqueous electrolytic solution in a nonaqueous secondary battery. SOLUTION: In a secondary battery provided with a positive electrode, a negative electrode, and a nonaqueous electrolytic solution containing LiPF6 as electrolyte, a ratio (p)=σ/η of the conductivity σ (10 S/cm) to the viscosity η(cps) of the nonaqueous electrolytic solution is 1 or more. A mixture of a high dielectric constant solvent and a low viscosity solvent is desirable for a solvent constituent of the nonaqueous electrolytic solution. A combination of cyclic carbonate and chain carbonate is especially suitable, as it increases a high output capacity.

公开(公告)号：JPH06243868A

公开(公告)日：1994-09-02

申请号：JP2685093

申请日：1993-02-16

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TSUKAMOTO JUN

IPC: H01M4/587 ,  H01M10/05 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/58 ,  H01M4/02 ,  H01M10/40

Abstract: PURPOSE:To enhance a Coulomb efficiency, and thereby make an energy density high by assembling a secondary battery after each electrode composed of carbon material is charged/discharged in advance, and thereby eliminating the generation of decomposed gas and byproducts within the battery. CONSTITUTION:After a carbon electrode produced through specified manufacturing processes, is charged/discharge in advance, it is assembled in a battery as an anode or a cathode, so that a secondary battery is thereby made up. This constitution thereby eliminates the generation of decomposed gas and byproducts at the time of initial charging/discharging, can make a Coulomb efficiency equal to or more than 95%, and also can make an energy density high. Besides, a fiber structural body is desirable as carbon material, the kind of raw material and its manufacture are not particularly specified.

公开(公告)号：JPH04310926A

公开(公告)日：1992-11-02

申请号：JP7791191

申请日：1991-04-10

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  YAMADA SHINICHI ,  TANIGUCHI TAKASHI

IPC: G02F1/15

Abstract: PURPOSE:To obtain the full-solid electrochromic display element (ECD) which enables drawing without any complicate patterning process and has superior durability by specifying the transmission spectrum of a Fourier transform infrared spectrophotometer (FT-IR) of tungsten oxide. CONSTITUTION:Plural layers including an electrochromic material layer 4 of tungsten oxide and a solid electrolytic layer 3 are provided on a substrate 1 which has a 1st electrode layer 2 to obtain the layers including the electrochromic material layer 4 and solid electrolytic layer 3 and a 2nd electrode layer 5 equipped with an elastic film. The spectrum of tungsten by the FT-IR satisfies expressions I and II, where absorbance of 1400cm is A1400, absorbance of 1800cm A1800, the maximum absorbance of 1600-1650cm is A*, absorbance of 2500cm A2500, absorbance of 4000cm A4000, and absorbance of 3400cm A3400. Therefore, the touch panel type full-solid ECD which enables drawing and has superior durability is obtained.

公开(公告)号：JPH04284486A

公开(公告)日：1992-10-09

申请号：JP4961091

申请日：1991-03-14

Applicant: TORAY INDUSTRIES

Inventor： YONEZAWA KOICHI ,  INOUE YOSHINORI ,  KIDAI MASAYUKI

IPC: G09F9/30 ,  G09F9/37

Abstract: PURPOSE:To offer the display device which provides high recording density, no flicker on the screen, and free writing with low power consumption and the erasing device which provides free erasure. CONSTITUTION:This display device 10 is constituted by providing (a) a drawing head 17 which has plural drawing elements 16 arrayed linearly or in two- dimensions and (b) a scanning means 20 which moves the drawing head 17 relatively along the surface of a write medium 22A which has reversible drawing performance and self-storing performance to the write medium 22A. Its erasing device consists of (a) an erasing head 17 which has a single or plural erasure elements 16 arrayed linearly or in two dimensions and (b) a scanning means 20 which moves the erasure head relatively along the medium of the write medium.

公开(公告)号：JPH04142315A

公开(公告)日：1992-05-15

申请号：JP26716490

申请日：1990-10-03

Applicant: TORAY INDUSTRIES

Inventor： KIDAI MASAYUKI ,  TANIGUCHI TAKASHI

IPC: C08F220/30 ,  C08F30/08 ,  C08F220/26 ,  C08F220/38 ,  C08F246/00

Abstract: PURPOSE:To obtain an optical resin which can improve the weathering resis tance of a base and is useful for a spectacle lens or the like which can cut unnecessary ultraviolet rays by copolymerizing a monomer with an ultraviolet absorber having an unsaturated double bond. CONSTITUTION:An optical resin is prepared by copolymerizing an ultraviolet absorber composed of a basic structure such as a benzotriazole, benzophenone or phenyl benzoate compound and an unsaturated double bond, e.g. 4- methacryloyloxyethyloxy-2-hydroxybenzophenone of formula I with a monomer (e.g. xylenedithiol dimethacrylate) and three-dimensionally crosslinking the copolymer. The weight ratio of the ultraviolet absorber to the monomer used is desirably 0.01-20%, more desirably 1-10%.

公开(公告)号：JP2003257453A

公开(公告)日：2003-09-12

申请号：JP2002380322

申请日：2002-12-27

Applicant: TORAY INDUSTRIES

Inventor： KONO SHUNJI ,  KIDAI MASAYUKI ,  OBARA TAKEHIRO ,  NAKAMURA MASATAKA

IPC: C08J3/24 ,  H01B1/06 ,  H01M8/02 ,  H01M8/10

Abstract: PROBLEM TO BE SOLVED: To provide a novel high polymer solid electrolyte capable of reducing methanol crossover and achieving a high output to provide a manufacturing method therefor and a high performance, solid high polymer type fuel cell by use of the electrolyte. SOLUTION: This high polymer solid electrolyte is constituted in such a way that polymer having an anionic group and a three-dimensional crosslinked body containing elements other than carbon have an inside penetration high polymer network structure. COPYRIGHT: (C)2003,JPO